Growth and development of purebred young cattle of Black-and-White breed and crossbreds with Hereford breed

2020 ◽  
pp. 3-15
Author(s):  
N. M. Kostomakhin ◽  
S. L. Safronov
Keyword(s):  
Weight Gain ◽  
Growth And Development ◽  
Live Weight ◽  
Correct Selection ◽  
Control Group ◽  
Leningrad Region ◽  
Live Weight Gain ◽  
Black And White ◽  
White Breed ◽  
Young Cattle

Due to the intensifi cation of the cattle breeding industry, there is a need to fi nd ways and available methods to increase production and improve the quality of beef based on the use of existing breeding stock of dairy cattle. The success of industrial crossbreeding depends primarily on the correct selection of breeds and their compatibility. The purpose of the research was to study the growth and development of purebred young cattle of Black-and-White breed and crossbreeds with Hereford breed in the Leningrad region. Research and production experiment has been carried out in the training and research farm “Pushkinskoe” of the St. Petersburg State Agrarian University. In the control group purebred animals of Black-and-White breed (9 heads steers and 7 heads heifers), in the experimental group half-blood animals (9 heads steers and 7 heads heifers) have been selected obtained as a result of crossbreeding Black-and-White cows and Hereford sires. The researches have been conducted from birth to 18 months of age. Researches have shown that the crossbreed young animals in comparison with purebreds were distinguished by expressed meat type of physique, a squat body with a welldeveloped back, a fairly wide and deep chest and a strong bone structure. Crossbred animals have been characterized by increased growth intensity. Steers and heifers outperformed their Black-and-White herdmates in terms of daily live weight gain overall over the study period by 170,6 g or 18,8 % , and 130,2 g or 15,6 %, respectively (P ≤ 0,01–0,001). According to the research results, it is recommended that to increase the volume of beef production and more fully realize the productive potential of cattle in the Leningrad region, it is necessary to conduct industrial crossbreeding of holstinized Black-and-White cattle with Hereford cattle. The resulting crossbreed young animals should be raised and fattened up to 16 months of age when steers reach a live weight of 540 kg and feed expenditures per 1 kg of live weight gain of 6,4 EFU, and heifers more than 480 kg and 6,9 EFU, respectively.

scholarly journals Application of iodine helated forms, cobalt and selenium when feeding young cattle

2018 ◽  
pp. 125-132
Author(s):  
E. Iu. Zaliubovskaya
Keyword(s):  
Weight Gain ◽  
Biochemical Parameters ◽  
Live Weight ◽  
Control Group ◽  
Organic Form ◽  
Live Weight Gain ◽  
Basic Diet ◽  
Young Cattle ◽  
Hematological And Biochemical Parameters ◽  
Experimental Group

The article explores hematological and biochemical parameters of blood, dynamics of live weight gain of young cattle of black-and-white breed when being fed feeding of a fodder additive. The experiment was conducted under conditions of dairy complex Priamurye of Tambov district of Amur region in 2017-2018. The researchers arranged experimental groups of calves by means of similar pairs taking into account age, live weight and physiological condition. There were three groups of animals arranged, one control group and two experimental ones. Each group included 10 calves aged 12 months. The conditions of young cattle keeping were similar. The control group calves were fed with basic diet at the farm, the 1st experimental group received iodine, cobalt and selenium in mineral form, whereas the 2nd experimental group received the same elements in helated (organic) form. At the end of the experiment, the coefficients of digestibility of crude protein, crude fat, nitrogen-free extractives and crude fiber were determined on the basis of the data on the amount of nutrients consumed and isolated by animals with feces. When microelements in mineral and helated forms were included in the basic diet of young cattle, microelements in organic form had a positive effect on hematological and biochemical parameters of blood of calves of the 2nd experimental group. Application of elements in organic form in the diets of young cattle increased digestibility coefficients of nutrients. This contributed to live weight gain, average daily and absolute growth of animals in the 2nd experimental group.

scholarly journals Гранулированный калий карбонат в рационах телят

2019 ◽  
pp. 43-46
Author(s):  
A.N. Betin ◽  
A.I. Frolov
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Feed Additive ◽  
Control Group ◽  
Mixed Feed ◽  
Live Weight Gain ◽  
Young Cattle ◽  
Group 2 ◽  
Phosphorus And Potassium ◽  
Experimental Group

Приведены данные, полученные в эксперименте на молодняке крупного рогатого скота с применением в рационах различных доз гранулированного калия карбоната в качестве кормовой добавки. Опыт проходил в два этапа: первый этап был проведён на молодняке в возрасте 2 4 месяцев, второй этап 4 6 месяцев. Для каждого этапа были сформированы три группы телят по принципу аналогов с учётом живой массы и состояния здоровья: контрольная и две опытные. 2 4месячным телятам одной опытной группы добавляли 1 кг, другой опытной группы 2 кг гранулированного калия карбоната на 1 тонну комбикорма. Телятам 4 6 месяцев соответственно 2 кг и 4 кг на 1тонну комбикорма. Установлено, что среднесуточный прирост живой массы 2 4месячных телят был выше в опытных группах на 1,9 и 2,8 соответственно. Использование кормовой добавки телятам 4 6месячного возраста, при норме внесения в комбикорм 2 кг и 4 кг на 1 тонну, увеличило среднесуточный прирост живой массы на 3,1 и 4,4 соответственно. Применение гранулированного калия карбоната в рационах телят оказало положительное влияние на биохимические показатели крови животных, активизировало белковый обмен и нормализовало его фракционный состав, повысило содержание кальция, фосфора и калия. Дополнительный доход от реализации молодняка в опытных группах разных возрастов по сравнению с контролем составил 86,25 122,5 и 164,44 228,88 руб. соответственно.The data obtained in the experiment on young cattle using various doses of granular potash as a feed additive in the diets are presented. The experiment took place in two stages: the first stage was carried out on young cattle at the age of 2 4 months, the second stage 4 6 months. For each stage three groups of calves were formed on the basis of analogues taking into account live weight and health status: control group and two experimental ones. 24monthold calves of one experimental group were added 1 kg of the other experimental group 2 kg of granular potash per 1 ton of mixed feed. Calves 46 months of age were added respectively 2 kg and 4 kg per 1 ton of mixed feed. It was found that the daily live weight gain of 2 4 month old calves was higher in the experimental groups by 1.9 and 2.8 respectively. The use of feed additive for calves 46 months of age with a rate of application of 2 kg and 4 kg per 1 ton in mixed feed has increased the daily live weight gain by 3.1 and 4.4 respectively. The use of granular potash in the rations of calves had a positive effect on the biochemical parameters of the blood of animals, activated protein metabolism and normalized its fractional composition, increased the content of calcium, phosphorus and potassium. The additional income from the sale of young animals in the experimental groups of different ages compared to the control amounted to 86.25 122.5 and 164.44 228.88 rubles respectively.

scholarly journals Study on effect of different levels of concentrate on growth performance of both male and female lamb

2016 ◽  
Vol 2 (2) ◽  
pp. 274-278
Author(s):  
Masum Billah ◽  
Md Humayun Kabir ◽  
Md Hafizur Rahman ◽  
Md Abdul Hamid
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Treatment Group ◽  
Live Weight ◽  
Experimental Period ◽  
Control Group ◽  
Male And Female ◽  
Live Weight Gain ◽  
Concentrate Supplementation ◽  
Concentrate Mixture

The present study was carried out to assess the effect of concentrate on growth performances of both male and female lamb. For this purpose twenty four (12 male and 12 female) lamb aged about 5-6 months were selected and divided into three groups (Treatment group T1, T2 and control group T0). In each group having 4 males and 4 females lamb, all lambs were supplied green roughages ad-libitum, control group T0 was allowed no concentrate and treatment group T1 & T2 were supplied 100 gm & 200 gm concentrate mixture respectively for 90 days experimental period. Animals were weighed at 15 days interval. Significant differences of live weight gain among these three groups were found. Allowing 100 gm (T1) concentrate mixture along with green grass improved growth rate in both male and female lamb. Increasing of concentrate supplementation improved live weight gain (found in T2 group). Total live weight gain (kg) and average daily live weight gain (g/d) were 4.25±0.52 kg and 47.20±5.75 g, 5.38±0.83 kg and 59.73+9.17 g and 7.00±0.54 kg and 77.78±6.00 g in male lambs and 2.25±0.21 kg and 25.00±2.34 g, 3.18±0.32 kg and 35.39±3.63 g and 3.81±0.24 kg and 42.33±2.77 g in female lambs for the To, T1 and T2 groups respectively. Live weight was significantly (P<0.05) higher in male than female lambs. The results showed that 100 g concentrate supplementation with green roughages improved growth rate in lambs (male and female) under stall feeding condition. Increase of supplementation might improve nutrients supply to promote higher live weight gain.Asian J. Med. Biol. Res. June 2016, 2(2): 274-278

The effect of fish meal and sucrose supplementation on the voluntary intake of grass silage and live-weight gain of young cattle

1985 ◽  
Vol 40 (2) ◽  
pp. 259-265 ◽  
Author(s):  
P. England ◽  
Margaret Gill
Keyword(s):  
Weight Gain ◽  
Fish Meal ◽  
Live Weight ◽  
Control Treatment ◽  
Live Weight Gain ◽  
Grass Silage ◽  
Lactic Acid Content ◽  
Cellulose Digestibility ◽  
Young Cattle ◽  
Voluntary Intake

ABSTRACTIn an experiment designed to investigate the effects on the growth and voluntary food intake of grass silage by calves, the silage was supplemented with varying levels of fish meal and sucrose. The grass silage had a pH of 3·6, a lactic acid content of 90·0 g/kg dry matter (DM) and total nitrogen content of 15·5 g/kg DM. Supplements of 50, 75 and 100 g fish meal per kg silage DM and 50, 75, 100 and 150 g sucrose per kg silage DM were mixed with the silage just prior to feeding. The eight diets were offered to 32, 4-month-old British Friesian steers for 12, 7-day periods. Intake was recorded daily and live weight weekly.Digestibility of organic matter (P < 0·05) and N (P < 0·001) were increased by fish-meal supplementation but the effect of level of fish meal was not significant. Sucrose supplementation significantly decreased both N (P < 0·01) and cellulose (P < 0·05) digestibility. The effect on cellulose digestibility increased with level of sucrose (P < 0·01).The intake of silage DM increased in response to increasing level of fish-meal inclusion when intake was expressed in terms of kg/day (P < 0·01) but not when expressed in g/kg live weight. Total DM intake showed a significant (P < 0·001) linear response when expressed both in terms of kg/day and g/kg live weight. The intake of silage DM declined in response to increased level of sucrose supplementation both in absolute (P < 0·05) and live-weight terms (P < 0·001) but sucrose supplementation had no significant effect on total intake.Live-weight gain was significantly increased with increasing level of fish-meal supplementation (P < 0·001), but sucrose supplementation had a significant effect on live-weight gain relative to the control treatment at only the 75 g/kg level, where live-weight gain was increased.

BIOTECHNOLOGICAL METHODS OF INCREASING THE EFFICIENTY OF CATTLE BREEDING

10.12737/7744 ◽  
2014 ◽  
Vol 9 (4) ◽  
pp. 124-127
Author(s):  
Самоделкин ◽  
Aleksandr Samodelkin ◽  
Еремин ◽  
Sergey Eremin
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Reproductive Function ◽  
Gastrointestinal Diseases ◽  
Positive Influence ◽  
Postnatal Period ◽  
Control Group ◽  
Cattle Breeding ◽  
Live Weight Gain ◽  
Newborn Calves

There was studied the distribution of postpartum pathology of cows and disease of calves in early postnatal period in conditions of Nizhny Novgorod region. It was established, that the new tissue drug &#34;bio-tec&#34; has positive influence on reproductive function, safety and live weight gain of calves. The postpartum pathology of cows gained wide spread among nizhnynovgorod farms up to 80%, e.g. Endometritis and subinvolution of uterus 37,4 and 23,9 respectively. By clinical examination of newborn calves it was established, that in the first month of life 50,3% fall ill with gastrointestinal diseases of various etiologies. The die-off of calves reached 29%. Using &#34;bio-tec&#34; drug to dry cows decreased the percentage of postpartum pathology by 35% and reduced the time of involution of uterus for 11,2 days; the service period reduced by 21,2 days and the diseases of newborn calves was twice less, that increased the energy of growth and in 16 month age heifers went over animals of the control group by 10%, that allowed their earlier use for reproduction. So, the results of conducted research showed, that twice a day injection of tissue drug &#34;bio-tec&#34; to dry cows in 10ml dose 60-55 and 40-35 days to calving contributes reducing of obstetric pathology. Subsequent use to calves in 4ml dose in 5-8 days age increases the safety of calves and positively influences the live weight gain, that in fact gives abilities of more effective cattle breeding.

scholarly journals Growth rate and meat quality of guinea fowl kept in farm conditions

2021 ◽  
Vol 22 (4) ◽  
pp. 581-588
Author(s):  
Vladimir A. Zabiyakin ◽  
Sergey A. Zamyatin
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Live Weight ◽  
Unknown Origin ◽  
Guinea Fowl ◽  
Live Weight Gain ◽  
White Breed ◽  
Feed Costs ◽  
Meat Productivity ◽  
Edible Parts

The research (2018-2019) was conducted in the conditions of a peasant farm in the Voronezh region. The paper evaluates the indicators of the growth rate and meat productivity of the preserved gene pool groups of guinea fowl. The experiment involved three groups of daily guinea fowl of 200 heads of different genetic origin: lines of the Volga white breed (the original VB-4, selected by the rate of live weight gain and reproductive characteristics; autosex VBA-1, selected by the color of down, feather and productive characteristics) and gray-speckled guinea fowl of unknown origin. Studies have shown that the live weight of guinea fowl of the VBA-1 line exceeded the live weight of poultry from other groups of guinea fowl, a significant excess was noted at 8, 12 and 13 weeks of age. The greatest coefficient of variation of the trait was observed at 8 weeks of age. The analysis of relative gain in live weight of guinea fowl showed that up to 10 weeks of age, the highest relative growth rate of guinea fowl of all experimental groups was observed (14.0-17.0 %). Starting from the age of 11 weeks, this indicator gradually decreased (4.3-13.4 %). It was found out that under the same conditions of keeping and feeding, the feed costs per 1 kg of live weight gain in guinea fowls of the VBA-1 line were less by 0.09-0.16 kg (3.11-6.33 %) compared to poultry of the VB-4 line and by 0.2-0.4 kg (5.49-12.82 %) compared to their gray-speckled peers. The results of anatomical cutting of guinea fowl carcasses showed that the experimental groups of poultry significantly (P< 0.05) differed among themselves in the degree of development of internal organs and tissues. The yield of edible parts was 60.2-61.1 %, depending on the group of poultry. The large live weight noted by us in linear poultry is the reason for their better meat productivity, which is directly related to an increase in the absolute mass of the eviscerated carcass, its edible parts, muscles and bones. Based on the data obtained, the optimal age of poultry slaughter for meat was determined at 10-12 weeks of life.

scholarly journals MORPHO-BIOCHEMICAL AND PRODUCTIVE INDICATORS OF DUCK-BROILERS WHEN USING PROBIOTIC "LACTOBIFADOL"

2021 ◽  
Vol 248 (4) ◽  
pp. 254-260
Author(s):  
A.F. Khabirov ◽  
◽  
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Feed Consumption ◽  
Control Group ◽  
Live Weight Gain ◽  
Positive Effect ◽  
Experimental Group ◽  
Average Consumption

The reaction of the organism of broiler ducklings to the introduction of the probiotic additive "Lactobifadol" into the organism when reared up to 7 weeks of age was investigated. A positive effect was achieved to increase the live weight of the experimental poultry by 5.0 % (p <0.5), the average feed consumption per 1 kg of live weight gain in the group of broiler ducklings fed with Lactobifadol feed was 4.7 % less when compared to intact poultry. The dynamics of feed consumption per 1 kg of live weight gain in the first three weeks of rearing was descending, and from 4 weeks of age until the end of rearing, fodder consumption increased significantly. For 6 weeks of growing, the average consumption of compound feed per head per day in the control group of broiler ducklings was 157.5 g, in the experimental group – 158.5 g per 1 bird/day. The inclusion of "Lactobifadol" in the diet to a certain extent stimulates the processes of erythrocytopoiesis, providing, within the physiological norm, an increase in the level of hemoglobin and the number of leukocytes.

Characteristics of productive and hematological indicators of broiler chickens when using different antimicrobial substances in their rearing

2020 ◽  
pp. 35-44
Author(s):  
S. Alexandrova ◽  
A. Bakharev ◽  
O. Simonov ◽  
E. Renev ◽  
S. Shabaldin ◽  
...  
Keyword(s):  
Weight Gain ◽  
Organic Acids ◽  
Broiler Chickens ◽  
Live Weight ◽  
The Body ◽  
Control Group ◽  
Colloidal Silver ◽  
Live Weight Gain ◽  
Antimicrobial Substances ◽  
Experimental Group

Under the environments of the Tyumen region a scientific and research work has been carried out, including an assessment of the influence of antimicrobial substances: colloidal silver, antibiotics and organic acids on the body of broiler chickens. The purpose of the work was to evaluate the influence of antimicrobial substances on the productivity of broiler chickens. The research and laboratory experiment has been carried out in the laboratory of the Northern Trans-Ural Scientific and Research Institute of the Tyumen Scientific Center of Siberian Branch of Russian Academy of Sciences on chickens of the cross ArborAykrs+. Chickens at the daily age have been distributed according to the principle of balanced groups-analogues. The period of chicken rearing was 35 days, during the same period the analysis of the studied antimicrobial substances has been performed. The composition of the test substances was included colloidal silver 10 μg/l, antibiotics (Pulsoceril, Enronite) and the mixture of organic acids (Agrofeed) at the dose of 0,4 ml/l. The results have shown that chickens that have been watered colloidal silver had the gain of live weight for the period of rearing 1850,94 g or lower than chickens in the control group. At the same time, broiler chickens with watering of antibiotics and organic acids exceeded the control group’s analogues. For example chickens of the 1st experimental group where colloidal silver has been watered at the dose of 10 mcg/l every day had the live weight gain during the rearing period lower by 15,56 g and the average daily live weight gain of 0,45 g than chickens of the control group. At the same time broilers of the 2nd experimental group (with antibiotics) and the 3rd experimental group (with organic acids) had the higher gain of live weight during the rearing period by 56,61 and 95,23 g, respectively, compared to the control group. The average daily gain diff erences were 1,62 and 2,72 g. Indicators of morphological and biochemical composition of blood of experimental groups of broiler chickens indicated that they were within the limits of the corresponding physiological norms. At the same time, there were some changes on the part of both red and white blood, which seems to be related not only to the body’s response to feeding, but also to the biochemical processes within the body.

ПРОДУКТИВНЫЕ КАЧЕСТВА БЫЧКОВ, ПОТРЕБЛЯЮЩИХ КОНСЕРВИРОВАННЫЙ СЕНАЖ

2019 ◽  
Author(s):  
KH.KH. TAGIROV ◽  
I.V. MIRONOVA ◽  
E.V. POZDNYAKOVA ◽  
L.A. ZUBAIROVA ◽  
N.V. GIZATOVA
Keyword(s):  
Propionic Acid ◽  
Live Weight ◽  
Control Group ◽  
Black And White ◽  
Propionic Acid Bacteria ◽  
White Breed ◽  
Working Solution ◽  
The Republic ◽  
Growth Energy ◽  
Meat Productivity

В статье приводятся показатели, характеризующие рост и уровень мясной продуктивности бычков черно-пестрой породы при скармливании им люцернового сенажа, заготовленного с разной дозировкой биозакваски на основе пропионовокислых бактерий. Препарат вводили в процессе закладки сенажа в виде рабочего раствора в количестве 2, 4 и 6 л на 1 т консервируемой массы. Опыт проводился в условиях Республики Башкортостан. Для этого 40 10-месячных бычков разделили на 4 группы. Молодняк контрольной группы получал неконсервированный сенаж, а опытных групп — сенаж, с закваской на основе пропионовокислых бактерий в указанных выше дозах. Установлено, что молодняк опытных групп лучше рос и развивался. В 12 мес его живая масса была выше, чем в контрольной группе на 2,50—6,10 кг (0,73—1,77%); в 15 мес — на 9,34—15,14 кг (2,20—3,57%; Р<0,05); в 18 мес — на 15,51—23,31 кг (2,10—4,66%; Р<0,05—0,01). Более высокая энергия роста молодняка опытных групп при откорме на рационах, включающих консервированный сенаж, способствовала и более высоким убойным показателям. Наилучший эффект проявился у бычков, потребляющих сенаж с закваской на основе пропионовокислых бактерий в дозе 4 л рабочего раствора на 1 т зеленой массы. Данная дозировка обеспечивает увеличение массы парной туши на 12,9 кг (4,79%),The article presents the indicators characterizing the growth and level of meat productivity of bull-calves of the black-and-white breed, when they are fed alfalfa haylage, harvested with different dosages of biosakvaski based on propionic acid bacteria. The drug was administered in the process of laying haylage in the form of a working solution in the amount of 2, 4 and 6 liters per 1 ton of preserved mass. The experiment was conducted in the conditions of the Republic of Bashkortostan (Alga, collective farm, Chekmagushevsky district). For this 10-month gobies were divided into 4 groups. The young of the control group did not receive canned haylage, but the test groups received haylage, with sour based on propionic acid bacteria in the above doses. It was found that the young of the experimental groups grew and developed better. So at 12 months of age, their live weight was higher than in the control by 2.50—6.10 kg (0.73—1,77%); in 15 months — by 9,34—15,14 kg (2,20—3,57%; P<0,05); in 18 months — by 15,51—23,31 kg (2,10—4,66%; P<0,05—0,01). The higher growth energy of the young of the experimental groups during fattening on rations, including canned haylage, contributed to a higher slaughter rate. The best effect was manifested in calves consuming haylage with ferment based on propionic acid bacteria in a dose of 4 liters of working solution per 1 ton of green mass.This dosage provides an increase in the mass of steam carcass by 12,9 kg (4,79%), carcass output by 1,0%; slaughter weight — by 14,0 kg (4,95%; P<0,05); slaughter yield — by 1,2%.

Growth rate and conformation characteristics of calves after administration of different doses of tissue biostimulator to cows

2021 ◽  
pp. 9-15
Author(s):  
I. A. Pushkaryev ◽  
T. V. Kureninova ◽  
T. L. Silivirova ◽  
N. V. Shanshin
Keyword(s):  
Growth Rate ◽  
Live Weight ◽  
Control Group ◽  
Physiological Status ◽  
Tissue Preparation ◽  
Black And White ◽  
White Breed ◽  
The Impact ◽  
Experimental Group ◽  
Different Doses

It is known that one of the most important reasons for the birth of weak calves is the impact of adverse factors on the physiological status of the cow, which in turn affects the intrauterine and postnatal development of the fetus and newborn. The results of studying the introduction of different doses of tissue biostimulator to cows during the dry period and its effect on the development of the conformation of calves received from them have been presented in the article. The experiment was carried out in 2019 on cows of Priobsky type of Black-and-White breed and calves obtained from them. In order to conduct the experiment four groups of dry cows-analogs have been formed with 10 heads in each for 55–60 days before the expected calving at the age of III lactation and older. When selecting animals the live weight and milk productivity of cows for the previous lactation have been taken into account. The highest growth rate has been observed in calves from cows the 2nd experimental group, which exceeded the control by 24,4 % (P ≤ 0,001). The best indicators of conformation development have been also observed in calves obtained from cows of the 2nd experimental group, which were injected subcutaneously with 22,5 ml of tissue preparation. So, oblique body length have been greater by 12,6 % (P ≤ 0,001), chest girth by 17,3 % (P ≤ 0,001), width of hook bones by 21,0 % (P ≤ 0,01), the width of the pin bones by 15,0 % (P ≤ 0,05). The lengthiness index was by 11,5 % higher (P ≤ 0,001), the blockiness index was by 4,1 % higher (P ≤ 0,05), and the boniness index was by 10,6 % lower (P ≤ 0,05) than in the control group herdmates.

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