scholarly journals GROWTH AND REPRODUCTIVE ABILITY OF HEIFERS AND FIRST-CALF COWS OF THE CREATED SIMМENTAL MEAT BREED

2020 ◽  
Vol 60 ◽  
pp. 23-30
Author(s):  
L. O. Dedova ◽  
M. I. Bashchenko ◽  
Yu. V. Vdovychenko

Introduction. Four domestic meat breeds of cattle have already been created – Ukrainian, Volynian, Polessian and Southern. Now carry out the work to create another breed of cattle, the Simmental meat, based on local Simmental combined direction of productivity. Now carry out the work with related groups of cattle of the created Simmental meat breed, which are the basis for the creation of further lines, but the economic and biological characteristics of animals of different related groups have not been sufficiently studied. This is especially touch of repair heifers, their raising. Therefore, the study problems of growth, development and biological characteristics in the raising of repair heifers of different related groups had is not only theoretical but also practical importance. The purpose of our researches was to study the dynamics of live weight and reproductive ability and their selection and genetic parameters of heifers and first-calf cows of different related groups of the created Simmental meat breed. Research materials and methods. The researches was carried out on heifers and first-calf cows of different related groups of the created Simmental meat breed in PJSC "Dniprovske" of Boryspil district of Kyiv region. To analyze the growth and reproductive ability of heifers and cows were formed groups of animals depending on from that to which related group they belong: I group – Metz 5290; II – Achilles 369; III – Abricot 58311; IV – Huxle 19223; V – Hercules 8942 and VI – Signal 120. Research results. We determine that heifers of the II group, which belong to the related group of Achilles 369, by live weight at all ages of periods surpass to peers. Thus, at 15 months of age, the advantage of heifers of the II group by live weight in comparison with peers of the I, III, IV, V and VI groups was 6.0; 1.2; 7.8; 17.3 (P > 0.90) and 12.8 kg. In heifers of related groups Hercules 8942 and Signal 120, the coefficient of variability of live weight at birth in which was the lowest, and in subsequent age periods it little varied, therefore at 15 months of age in these heifers it was the highest, in comparison with analogues, and was 9.8. When studying the age repeatability of live weight of heifers of different related groups, we determine, that in heifers of the related group of Signal 120 indicators of the coefficient of repeatability of live weight in all age periods were the highest and fluctuated from 0.75 to 0.95. The longest duration of service and between calving periods was in cows of the II group, which belong to the related group of Achilles 369, they were 155.3 and 435.5 days, respectively. The coefficient reproductive ability was highest in cows of the IV group, which belong to the related group of Huxle 19223, and was 0.92, and the lowest – in cows of the II group, which belong to the related group of Achilles 369 – 0.85. An important indicator of the reproductive ability of animals is the index of fertility. In our researches, it was determine that the animals of the experimental groups generally had average fertility. Thus, their index of fertility fluctuated from 40.8 (II and V groups) to 42.4 (IV group). When calculating the possible percent of calves on 100 cows, it was determine that the lowest this indicator was in cows of the II group, which belong to the related group of Achilles 369. They were inferior to animals of the I, III, IV, V and VI groups by 2.0; 1.7; 7.3; 2.2 and 4.0 goals. Also, the coefficients of variation of indicators of reproductive ability of heifers and first-calf cows of different related groups were calculated. It was determine, that the heifers of the related group Huxle 19223 had the highest coefficient of variability in the duration of the service period, which was 47.8. When calculating the correlation connexions between growth and reproductive ability of heifers of different related groups detected in all groups of animals a positive relationship between live weight at 7 months of age and index of fertility, between live weight at the first insemination and the age of the first insemination and between live weight at the first insemination and the age of the first calving. Conclusions. It was determined, that the animals of the related group of Achilles 369 at all ages of periods had a large live weight in comparison with their analogues. The highest coefficient of variability of live weight at 15 months of age was in heifers of the related group Signal 120 and amounted to 9.8. Also, the heifers of this group had the highest the indicators of the coefficient of recurrence of live weight in all age periods and ranged from 0.75 to 0.95. The best indicators of reproduction were characterized by animals of the related group Haxle 19223. The coefficient of reproductive ability in them was 0.92, and the index of fertility was 42.4. Also, heifers of the related group Haxle 19223 had a highest coefficient of variability in the duration of the service period, which was 47.8. In animals of all groups was revealed a positive relationship between the live weight at 7 months of age and the index of fertility, which indicates the possibility of using this relationship in breeding work with the herd.

2021 ◽  
Vol 61 ◽  
pp. 49-56
Author(s):  
L. O. Dedova ◽  
M. I. Bashchenko ◽  
Yu. V. Vdovychenko

Introduction. When creating the Simmental beef breed of cattle during many years carried out researches to study the effectiveness of the use of meat Simmentals of foreign selection in crossbreeding with cows of Simmental breed of domestic selection. Were created the herds of the desirable type by breeding "in themselves" animals, that meet the requirements of the target standard, formed a genealogical structure. Now carry out the work with related groups of cattle of the created Simmental meat breed, which are the basis for the creation of further lines, but the growth and development of animals of different related groups have not been sufficiently studied. Therefore, the study problems of growth and development of repair heifers of different related groups has not only theoretical, but also practical importance. The purpose of our researches was to study the dynamics of linear growth and weight development of heifers of different related groups of the created Simmental meat breed. Research materials and methods. The researches was carried out on heifers of different related groups of the created Simmental meat breed in PJSC "Dniprovske" of Boryspil district of Kyiv region. To analyze the growth and development of heifers were formed groups of animals depending on their belongings to related groups of 15 heads in each: I Group – Metz 5290; II – Achilles 369; III – Abricot 58311; IV – Huxla 19223; V – Hercules 8942 and VI – Signal 120. Research results. It was determined, that heifers of the II group, which belong to the related group of Achilles 369, by live weight at all ages of periods surpass to peers. Thus, at 18 months of age the advantage of heifers of the II group by live weight in comparison with to peers of the I, III, IV, V and VI groups was 4.1; 3.0; 5.0; 14.1 and 11.4 kg. In heifers of related groups Hercules 8942 and Signal 120, the coefficients of variability of live weight at birth in which were the lowest, and in the following age periods they little changed, therefore at 18 months of age in these heifers they were the highest, comparison with analogues, and was to 8.4 and 9.2%, respectively. When studying the exterior of heifers of different related groups it was determined, that newborn heifers of the I group, which belong to the related group of Metz 5290, surpass their peers in height indicators. Their the height at the withers and the height at the sacrum were 74.0 and 79.1 cm, which is 0.6; 1.3; 2.1; 3.2 and 2.6 cm and is 0.3; 1.2; 2.9; 3.6 and 3.2 cm more than in analogues of the II, III, IV, V and VI groups, respectively. The best indicators of latitudinal measurements had the heifers of the III group, which belong to the related group Abricot 58311. In heifers of this group the width of the chest was 17.6 cm, width in the hip joints – 21.8 cm, width in the hips – 18.1 cm, and width in the ischial tubercles – 12.6 cm. The depth of the chest and the girth of the chest behind the shoulder blades were the highest in heifers of the I group, which belong to the related group of Metz 5290. They were 32.2 and 79.6 cm, respectively. When analyzing the measurements of heifers at 18 months of age, it was determined, that the height indicators had advantage by heifers of the II group, which belong to the related group of Achilles 369. Their, the height at the withers and height at the sacrum were 124.5 and 129.8 cm, which is 0.3; 1.3; 2.5; 5.3 and 4.2 cm and is 0.9; 2.2; 4.1; 6.6 and 5.9 cm more than in analogues of the I, III, IV, V and VI groups, respectively. The best indicators of latitudinal measurements had the heifers of the III group, which belong to the related group of Abricot 58311, since they had increases of measurements width of the chest, width in the hip joints, width in the hips and width in the ischial tubercles for the period from birth to 18 months of age the highest comparison with peers. Such indicators as depth of the chest and the girth of the chest behind the shoulder blades were highest in heifers of the II group, which belong to the related group of Achilles 369. Their increases of measurements depth of the chest and the girth of the chest behind the shoulder blades for the period from birth to 18 months of age also were highest comparison with peers and were 35.5 and 94.2 cm, respectively. Conclusions. It was determined, that the animals of the related group of Achilles 369 at all ages of periods had a large live weight in comparison with their analogues. The lowest coefficient of variability of live weight at 18 months of age was in heifers of the related group Abrikot 58311 and amounted to 6.5%. Heifers of the related group of Achilles 369 had the highest indicators of the following measurements: height at the withers (124.5 cm), height at the sacrum (129.8 cm), depth of the chest (67.4 cm), girth of chest behind the shoulder blades (173.1 cm) and oblique length of body (146.4 cm). The highest latitudinal measurements were observed in the heifers of the related group Abrikot 58311. Thus, the width of the chest was 49.9 cm, the width in the hip joints was 42.2 cm, the width in the hips was 43.3 cm, and the width in the ischial tubercles was 29.2 cm. Heifers of the related group Metz 5290 had the highest half-girth croup (110.2 cm) and girth of metacarpus (18.4 cm). In general, heifers of all groups showed good energy of growth and a typical for beef cattle exterior.


2016 ◽  
Vol 52 ◽  
pp. 82-94 ◽  
Author(s):  
A. Ye. Pochukalin

One of the ways of increasing level of animal economically useful traits is selection work with farm families. In pedigree cattle breeding of Ukraine families are a statistical component of breed genealogy. Among the main scientific works on working with families, it should be noted minimum number of female ancestors, proposed by D. T. Vinnichuk, to determine the breeding value, different categories, classification and techniques for evaluating related groups of females. The aim of our research was to analyse importance of farm families for genealogical structure of the breed. The research was on basis of data of primary breeding records at the herd of Volyn Beef cattle of “Zorya” breeding farm, Kovel district, Volyn region. Akula 102, Galka 37 and Galka 1537 families belonging to Krasavchyk 3004 bloodline, Smorodyna 613, Korona 2382 and Visla 1016 families – Tsebryk 3888 bloodline, Kalyna 212, Verba 1536 and Garna 536 families – Yamb 3066 bloodlines, Kazka 433, Galka 421 and Bystra 1124 families – Buinyi 3042 bloodline, Rozetka 1313, Arfa 599 and Bulana 943 families – Sonnyi-Kaktus 3307-9828 bloodline, and Palma 275, Desna 870 and Veselka 444 families – Mudryi 9100 bloodline were characterized. Belonging to a bloodline was determined by the father's side of female ancestors. Structural units of families: branches, branching with identifying the best individuals on breeding traits were submitted to identify the best combinations and successful use of closely related breeding. Comparing assessment of related groups of females on the main breeding traits belonging to Krasavchyk 3004 bloodline, it was noted that the cows of Akula 102 family predominated in live weight at 5 years’ age, milk ability and economic use duration, whereas the cows of Galka 1537 family – on traits of reproductive ability. Smorodyna 613 family of Tsebryk 3888 bloodline had high duration of economic use and cows’ live weight at 5 years’ age compared with Korana 2382 and Visla 1016 families with equal values of the exterior traits (height measures) and coefficient of reproductive ability. The families of Mudryi 9100 bloodline in terms of reproduction (calving interval, coefficient of reproductive ability) had the highest figures of cows’ milk ability and live weight. The cows of Bulana 943 family had a considerable predominance over representatives of Rozetka 1313 and Arfa 599 families of Sonnyi-Kaktus 3307-9828 bloodline by main economically useful traits. High indices of reproductive ability were noted in these families. Heifers of the families of Buinyi 3042 bloodline had high live weight at 18 months’ age at average values of milk ability and cows’ live weight at 5 years’ age. More equal figures of growth rate, exterior and economic use duration were observed in the cows of Kalyna 212, Verba 1536 and Garna 536 families of Yamb 3066 bloodline. Breeding by families in beef cattle breeding is an important element of selection, because it allows to evaluate not only related group of female ancestor, but also to analyse a successful combination with lines and purposeful use of closely related breeding by the best representatives of a breed.


2017 ◽  
Vol 19 (74) ◽  
pp. 48-51
Author(s):  
L. V. Ferenz

The influence of bullock`s different breeding value for reproductive ability and milk production of their  daughters were investigated. Established that the age of first productive insemination of heifers Ukrainian black spotted milk breed, was 17.5–18.6 months and age of first calving – 26.6–27.8 months. Heifers` live weight at the first insemination was 361.4–407.1 kg. During first lactation the highest productivity had daughters from parents with breeding value by milk yield more than 801 kg. In the first lactation wasn’t found significant difference in duration service-period and interparturition-period for cows derived from progenitors with different breeding value. In the second lactation best indexes in duration service-period and interparturition-period for cows derived from progenitors with breeding value by milk yield 601–800 kg and more than 801 kg. In the third, the highest lactation, these indexes were best for cows derived from progenitors with breeding value by milk yield 601–800 kg. The difference in milk yield during first lactation between heifers received from progenitors with breeding value by milk yield less than 200 kg and heifers from bullock`s  with breeding value 401–600 kg was 292 kg. The difference in milk yield between heifers received from progenitors with breeding value by milk yield less than 200 kg and heifers from bullock`s  with breeding value  with breeding value 601–800 kg  was 660.3 kg. The difference in milk yield between heifers received from progenitors with breeding value by milk yield less than 200 kg and heifers from bullock`s  with breeding value more than 801 kg was  920.8 kg In the second lactation this difference was 589.8 (Р < 0.001), 841.5 (Р < 0.001) і 894.4 (Р < 0.001) kg of milk, in the third, the highest lactation – 754.5 (Р < 0.001), 951.8 (Р < 0.001) і 1335.7 кг (Р < 0.001).


Author(s):  
S. Voitenko ◽  
O. Sydorenko

It has been highlighted the data of researches as for the influence of natural and climatic zones of Ukraine on display of economically useful signs of the most numerous cattle in the country like Ukrainian black-spotted dairy breed. It was the grounds to assert the efficiency of resources use in those conditions to which they are most adapted and have genetically determined potential. It was found that cowsof lactation breeding herds in the Forest-steppe zone produced 7344 kg of milk, which is 242 kg and 1125 kg more than in the Steppe and Polissya regions due to significant variation of the characteristic within each climatic zone (Cv = 11.6– 27,5%). The Polissya zone, where the animals' yieldwere 5764 kg, while in other climates 6982–6992 kg, does not contribute to the high productivity of the first lactation cows. It is proved that the duration of the service period in cows of three natural and climatic zones of Ukraine varied from 106 days in Polissya to 126 days – Forest-steppe, but it did not agree with the output of calves per 100 cows, which in 81 Polissya amounted to 82 and Forest-steppe – 79. The heifers of the Steppe zone are inseminated with live weight of 391 kg at the age of 477 days, and the Forest-steppe and Polissya with slightly less 385 kg and 387 kg, respectively, at the age of 493 days and 517 days. There is no significant difference in live weight at the ages of 6, 12 and 18 months between heifers of different natural and climatic zones of Ukraine, but the degree of development of the trait after 6 months was slightly better in cattle of the Steppe zone. A positive correlation was found between milk yield of first lactation cows of all natural climatic zones and their live weight at 6, 12 and 18 months of age, as well as negative calf age at first insemination (-0.587 ... -0.810) with significant correlation from the cattle of the Steppe zone. A high correlation coefficient (+0.703) was found in cows between live weight of heifers at first insemination and first lactation in the Polissya region. Key words: natural and climatic zones, Ukrainian Black-and-White Dairy breed, cows, yield, lactation, live weight, reproductive ability indicators, selection traits.


Author(s):  
V. V. Fedorovych ◽  
T. V. Orihivskyy ◽  
N. P. Babik ◽  
E. I. Fedorovych ◽  
R. S. Oseredchuk

There are indicators data of body weight, body parts measurements, reproductive ability, milk production, morphological and functional properties of udder, the duration of use and economic reasons of disposal of Simmental cows in terms of Lviv oblast. It was established that the experimental cows by live weight during their growth in all ages have been prevailing minimum requirements of breed standard. They are marked by peculiar to combined breed type of body structure with well–defined not only milk but also meat forms, they had strong skeleton and were quite tall (withers height – 131.1 cm). However, the width of the breast in most cows, that is not enough for combined breed (on an average 41.4 cm). Simmentals age at the moment of the 1st insemination was 19.7, while during the 1st calving – 29.0 months, the duration of the service–period, depending on lactation, was within 96.8 – 112.0, of inter–calving period – within 381.6 – 396.9 day. They were characterized by an average fertility and high adaptablity. Simmentals milk yield, depending on lactation, was 3026,4–3810,2 kg, fat content in milk – 3.76 – 3.81% and quantity of milk fat 113.6 – 145.0 kg. Cows after the 4th calving had the highest milk productivity. During the all studied lactations cows milk yield and quantity of milk fat predominated breed standard. They had a well developed udder. 68.2% cows after the first calving had cupped udder, 25.9% – wash–tub and 6.9% – round udder. Their intensity of milk yield was 1.53 kg/min. Simmental cows duration of economic use in the conditions of Lviv oblast was 1.904.1 day or 5.3 lactations, lifetime yield – 18011, lifetime quantity of milk fat – 688 kg. Most reasons for dropped out of the herd was dysfunction of reproduction (35.7%) and low productivity (21.3%).


2020 ◽  
Vol 4 (2) ◽  
pp. 387-395
Author(s):  
A. O. Gonchar ◽  
I. S. Pishchan ◽  
L. O. Litvishchenko ◽  
S. G. Pishchan

In the article are considered the effect of postpartum course and periodicity of manifestation of dystocia and reproductive capacity of Holstein cows of different age. The experimental part of the research was performed at the industrial complex for milk production of cows of Holstein breed of “Agro-Soyuz”. Assessment of ease of calving in cows of different age was determined in points (V. Berglund, J. Phillipson et al., 1987): 1 – easy calving; 2 – normal calving, only some help is required (slight dystocia); 3 – heavy calving, full intervention is required (dystocia). And was determined the live weight of the calves (kg). It is found that about 83 % of cows the calving pass easily enough. At the same time, more than 10 % of the calving, operators had to spend only the final help of the calves release from the animal's birth canal. However, almost 7 % of calving animals care required sufficiently substantial assistance, which included several operators. It is proved that the age of the cows is not crucial, which determines the dystocia. In this case, a direct relationship was established between the live weight of calves at birth and the display of dystocia during calving of cows. The live weight of the newborn at 37 kg causes a slight dystocia, and weighs about 39 kg – a dystocia. The live weight of the calves at birth at the level of 34 kg provides a normal course of calving. In 74.4 % of first-heifers there is a complication of recovery of the reproduction system after calving. The rate of cows in fourth lactation is quite high – 72.5 %. Close to this indicator are characterized by cows of the second lactation, in which symptomatic infertility is 69.6 %. The average index of insemination is 1.9 units is typical for cows with a normal postpartum period. Symptomatic infertility leads to a lengthening of the service period by almost a month, compared to calving cows and the postpartum period proceeded normally. Heavy dystocia during calving is characteristic of 12 % of the animals, which were predominantly cows of the first calving. Keywords: holstein breed, service period, calving, index of insemination, dystocia, symptomatic infertility.


Author(s):  
Viktor Khalak ◽  
Vasyl Voloshchuk ◽  
Konstiantyn Pochernyaev ◽  
Serhii Smyslov ◽  
Maria Ilchenko

The results of studies of the reproductive ability of sows of different genotypes are given taking into account the polymorphism g.1426G> A of the MC4R gene, the factor of repeatability of characters is determined, and the economic efficiency of the research results is calculated. The experimental part of the research was carried out in the conditions of the «Druzhba-Kaznacheevka» LTD in Dnipropetrovsk region. The objects of research were sows of the Large White breed. It was determined that sows of the main herd, according to signs of reproductive ability, belong to class I and class elite. The experiment showed that sows of genotype AG exceeded their peers of others (GG and AA) in terms of “born piglets total, heads” by 1.6 and 0.7 heads, “Live piglets born (multiple births), heads - by 1 6 and 0.9 heads, “the mass of the litter at the time of birth, kg” - by 2.7 - 1.3 kg., “the mass of the litter at the time of weaning at the age of 28-35 days, kg” - by 5, 1 - 3.9 kg. The difference between animals of the indicated genotypes is: for large-foetus - 0.06-0.01 kg, the index "evenness of the sow’s litter in live weight of piglets at birth, points" - 1.05-1.84 points, index of N. D. Berezovsky - 3.75 -2.36 points. The index of the safety of piglets before weaning ranged from 84.4 to 93.0 %. It was proved that the minimum value of the index “evenness of the sow’s littar in live weight of piglets at the time of birth, points (7.76 ± 1,082 points) are characterized by sows of genotype AA, in which the rate of multiple pregnancy ranged from 8 to 14 pigs, and the value of the sign“ large-foetus, kg "equaled 1.37 kg. The repeatability coefficient for sows of the main herd and sows of the Large White breed of different genotypes for the melanocortin 4 (MC4R) receptor gene ranges from -0.916 ± 0.1418 (І-IV farrow, genotype - GG, sign - “piglet safety before weaning, %) to 0.978 ± 0.0738 (I-V farrow, genotype - GG, sign - “large foetus”, kg ”). The maximum value of the phenotypic consolidation coefficient was found in sows of genotype AA according to the following quantitative characteristics: “live piglets (multiple births), heads.”, “litter weight at the time of birth, kg”, “litter weight at weaning age of 28-35 days, kg "," the safety of piglets before weaning ,% ". The sows of the genotype GG belong to the unconsolidated group according to the signs of reproductive qualities. The use of sows of the genotype for the melanocortin 4 (MC4R) AG receptor gene provides additional products at the level of 5.15 %, and its cost is 165.41 UAH /head. Keywords: sow, breed, reproductive ability, MC4R gene, genotypic consolidation coefficient, variability, correlation, repeatability.


Author(s):  
И.А. ПУШКАРЕВ

Исследования проводились в Алтайском крае на коровах Приобского типа черно-пестрой породы. Было сформировано 4 группы коров 3 лактации, аналогов по живой массе (500 кг), в период сухостоя, по 10 голов в каждой. Молочная продуктивность по последней контрольной дойке перед запуском составляла в среднем 22,5 л. Тканевый биостимулятор вводили с интервалом 14 дней, четырехкратно в период сухостоя и четырехкратно в период раздоя. В I опытной группе доза тканевого биостимулятора составляла 15 мл/гол., во II — 22,5 мл/гол., в III — 30 мл/гол. Опытную партию тканевого биостимулятора изготовили из субпродуктов и боенских отходов пантовых оленей. Наиболее оптимальной дозой применения тканевого биостимулятора следует считать 22,5 мл/гол, она способствовала сокращению времени прихода коров в первую половую охоту после отела на 3,9%, повышению результативности осеменения до 30,0%, уменьшению сервис-периода на 17,5% (P≤0,05) и индекса осеменения на 32,0%. The studies were conducted in in the herd of Black-Pied cows of the Priobskiy type. Four groups of 10 dry cows at the age of the 3rd lactation and comparable in live weight (500 kg) were formed. The milk yield at to the last control milking before drying-off averaged 22.5 liters. The tissue bio-stimulant was administered two weeks apart, four times during the dry period and four times during the first 100 days of lactation. The tissue bio-stimulant was administered in the following doses: in the 1st trial group — 15 mL per head; 2nd trial group — 22.5 mL per head; 3rd trial group - 30 mL per head. The trial batch of the tissue bio-stimulant was made from velvet antler deer by-products and slaughterhouse offal. The tissue bio-stimulant dose of 22.5 mL per head should be considered the most optimal one; it shortened time of coming in the first heat after calving by 3.9%, increased insemination effectiveness to 30.0%, shortened the service period by 17.5% (P≤0.05) and decreased the insemination index by 32.0%.


Author(s):  
А.М. Френк ◽  
Е.М. Гриневская ◽  
А.И. Фролов ◽  
А.Н. Бетин ◽  
Н.И. Маслова

В условиях научно-производственного опыта исследована эффективность введения кормовой добавки «Абиотоник» в рацион высокопродуктивных голштинизированных симментальских коров (в транзитный период и на раздое). «Абиотоник» представляет собой усовершенствованный аналог известного импортного препарата «Чиктоник», отличаясь от иностранного аналога многократно увеличенной концентрацией пептона и наличием высокодефицитных микроэлементов (селена и элементоорганического соединения йода). Наши исследования показали, что скармливание препарата «Абиотоник» в дозе 150 мл/гол. способствовало росту продуктивности коров на 5,84%, улучшило физико-химические свойства молока и повысило его пищевую ценность. Применение кормовой добавки способствовало также профилактике желудочно-кишечных заболеваний у коров, повышению их резистентности, о чём свидетельствовали показатели крови и бактериологического исследования кала. Заболеваемость коров в опытной группе не наблюдалась. Использование препарата «Абиотоник» коровам в заключительной стадии сухостойного периода и в начале лактации привело к сокращению времени отделения плаценты у коров после отёла на 6,54%, или на 0,4 часа, повышению живой массы новорождённого молодняка на 1,6% и сокращению сервис-периода у опытных коров на 8 дней по сравнению с контрольными. Использование кормовой добавки «Абиотоник» способствовало получению дополнительного дохода от реализации молока в размере 1152 руб./гол. Полученные экспериментальные данные позволяют рекомендовать использование отечественной импортозамещающей кормовой добавки «Абиотоник» в рационах коров транзитного периода и на раздое в дозе 150 мл/гол. ежедневно в последней фазе сухостоя и через день в течение 40 суток после отёла. Under the conditions of scientific and farm scale trial the efficiency of introduction of the feed additive "Abiotonic" into the diet of highly productive Holsteinized Simmental cows (during the transition period and for days in milk) was studied. "Abiotonic" is an improved analogue of the known imported preparation "Chiktonik" differing from the foreign analogue by its manifoldly increased peptone concentration and the presence of highly deficient microelements (selenium and organo-element compounds of iodine). Our researches have shown that feeding the preparation "Abiotonic" at a dose of 150 ml / head contributed to an increase in cow productivity by 5.84%, improved the physicochemical properties of milk and increased its nutritional value. The use of a feed additive also contributed to the prevention of gastrointestinal diseases in cows, an increase in their resistance as evidenced by haematological parameters and bacteriological feces analysis. The incidence of cows in the experimental group was not observed. The use of the preparation "Abiotonic" for cows in the final stage of the dry period and at the beginning of lactation reduced the time for separation of the placenta in cows after calving by 6.54% or 0.4 hours, increased the live weight of newborn young stock by 1.6% and reduced the service period of experienced cows by 8 days compared with the control ones. The use of the "Abiotonic" feed additive contributed to the receipt of additional income from the sale of milk in the amount of 1152 rubles / head. The obtained experimental data allow us to recommend the use of domestic import-substituting feed additive "Abiotonic" in the diets of cows in the transition period and for days in milk at a dose of 150 ml / head daily in the last phase of dry period and every other day for 40 days after calving.


Author(s):  
Ivan Pomitun ◽  
Nadezhda Kosova ◽  
Igor Korkh ◽  
Lubov Pankiv ◽  
Natalia Boyko ◽  
...  

The results of evaluating the breeding value of rams of different genotypes by a wide range of productivity indicators of their descendants are presented. Tribal rams of the Kharkov interbreed type of Prekos breed of 2-3 years of age, as well as crosses from the introductory crossing of Prekos sheep with the Romanov breed and Merinolandsheep, were evaluated. The resulting offspring were grown under the conditions of one production flock. The evaluation considered the indicators of the reproductive ability of ewes, sex and type of birth of the offspring, the safety of lambs from birth to 20 days of age, the dynamics of the average daily growth of daughters in the uterus and at the age of birth to 20 days and from 21 to 90 days, live weight indicators were considered, cutting and length of hair of daughters at the age of 14 months. Studies have established that the average yield of lambs throughout the sample was 115.3 % per 100 ewes, with significant differences between the estimated producers - from 105.1 to 131.3 %. This indicator did not have a definite relationship with the genotype of the estimated sheep. Among the offspring of all rams, males slightly prevail over females in the ratio of 1.09 to 1. This advantage is due to the large number of rams born among same-sex twins. Their part exceeded 28 %, while only 23.4 % turned out to be similar in type of birth. By the sum of the ranks that were put to individual sheep for the indicators of the average daily growth of daughters at different periods of their growth, the best cross-breed sheep No. 1625 and No. 9953 are distinguished. On the whole, there is a fairly clear tendency for a positive relationship between the ranks for the growth rate in the embryonic period and the same indicator for posterity aged 21-90 days. According to both the ranking and the probity-based evaluation results, ram No. 1625 (a created line based on crossing with the Romanov breed) is assigned to complex improvers. The rest topping ram out to be improvers of individual traits, and the producer of the breed Prekos No. 1823 was an improvement in production of wool and length of staple. Ram No. 1960 turned out to be a complex deteriorator in the quality of offspring. The descendants of rams No. 4464 and 9953, derived from the breed of Merino landscape, reliably (p≤0.01), by 18.6-20.8 % in terms of wool coefficients, are inferior to the daughters of ram No. 1823, breed Prekos, which is an unconditional evidence of the strengthening of their characters meat productivity over wool one.


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