THE INFLUENCE OF THE DRY SUBTROPICAL CLIMATE OF AZERBAIJAN ON THE DURATION OF PREGNANCY OF HEIFERS AND THEIR DAUGHTERS OF THE HOLSTEIN BREED OF GERMAN BREEDING

Author(s):  
А.И. АБИЛОВ ◽  
С.Ф. АБИЛОВА ◽  
И.П. НОВГОРОДОВА

Работа посвящена изучению воспроизводительной способности как критерия адаптации животных голштинской породы черно-пестрой масти немецкой селекции в условиях сухого субтропического климата Азербайджана. В контрольную группу (n=79) вошли нетели, импортированные с 3—4-месячной стельностью из Германии, выросшие в умеренно-континентальном мягком климате. В условиях Азербайджана их адаптационный период начался в возрасте 18—24 мес. Опытная группа состояла из нетелей (n=79), рожденных в Азербайджане от животных контрольной группы. Были изучены воспроизводительные показатели: возраст первого осеменения, продолжительность стельности, возраст первого отела. Телята опытной группы за счет сухого субтропического, умеренно-жаркого климата быстрее росли и достигали возраста первого осеменения и отела. У 64% животных опытной группы возраст первого осеменения составлял до 500 суток, в то же время в контрольной группе только 48% телок были осеменены к этому возрасту. Разница составила 16%. У 29% животных опытной группы продолжительность стельности составила менее 270 дней, в то время как в контроле — только 21% (P<0,01). Потомство, полученное в условиях Азербайджана от импортных матерей, по сравнению с ними отличалось более ранней половой зрелостью и более коротким сроком плодоношения. The work is devoted to the study of reproductive ability as a criterion for the adaptation of animals of the Holstein breed of the black-and-white suit of German breeding in the conditions of the dry subtropical climate of Azerbaijan. The control group (n=79) included heifers imported with a 3—4-month pregnancy from Germany, who grew up in a temperate continental mild climate. In the conditions of Azerbaijan, their adaptation period began at the age of 18—24 months. The experimental group consisted of heifers (n=79) born in Azerbaijan from animals of the control group. Reproductive indicators were studied: the age of the first insemination, the duration of pregnancy, the age of the first calving. The calves of the experimental group grew faster due to the dry subtropical, moderately hot climate and reached the age of the first insemination and calving. In 64% of the animals of the experimental group, the age of the first insemination was up to 500 days, while in the control group only 48% of heifers were inseminated by this age. The difference was 16%. In 29% of the animals of the experimental group, the duration of pregnancy was less than 270 days, while in the control — only 21% (P<0.01). The offspring obtained in Azerbaijan from imported mothers, in comparison with them, differed in earlier sexual maturity and a shorter period of fruiting.

Author(s):  
I. E. Ivanova ◽  
N. E. Otekina ◽  
M. A. Sitnikova

The open days period is one of the components of the physiological cycle of the cow, during which it must be prepared for effective insemination. The duration of this period as a production indicator gives a general idea of the reproductive traits of the herd as a whole, and of each animal in particular. In order to increase milk production, it is possible to extend the open days period to obtain a longer lactation. Studies of this issue show that at the same time the dry period also extends and the average daily milk yield as the whole for lactation decreases. The purpose of the research was to determine the level of milk productivity and reproductive ability of cows depending on the duration of the open days period. The research has been carried out under the conditions in the APC “Emurtlinsky” in the Tyumen region, which is a breeding farm for the breeding of cattle of Holstein breed. It has been found that with an increase in the duration of the open days period from 93 days in the control group to 146 days in the experimental group the duration of barrenness was 3 and 56 days, respectively. It has been found that on the 1st day of milk yield per cow, the milk loss was 4,9 kg, and the absolute annual milk loss in the cows of the experimental group was in the range of 275 kg. The conducted studies suggest that with the increase in the duration of calving interval, there is the decrease in the milk yield of cows per year. The use of cows with the increase in the open days period above the norm recommended by specialists is unjustified. The increase in milk yield due to the lengthening of the lactation period is not effective, because it eventually leads to the increase in the number of days of barrenness and milk loss.


2020 ◽  
Vol 2 ◽  
pp. 178-182
Author(s):  
L.Y. Karpenko ◽  
◽  
A.A. Pogodaeva ◽  
A.A. Bakhta ◽  
◽  
...  

The article discusses the results of the dy-namics of indicators of innate immunity of cattle throughout pregnancy. The research topic is relevant, since receiving healthy offspring is certainly associated with the natural resistance of the cow. The aim of the study is to study the non-specific immunity of cows in different months of pregnan-cy. The work was performed on the farm of JSC Krasnoselskoye PZ (Leningrad Oblast). During the experiment, 2 groups of cows of Holstein black-and-white breeds were formed: the experimental group – 10 preg-nant cows and the control group-10 not steel cows. Blood was taken once a month throughout pregnancy. Indicators of phago-cytosis, bactericidal and lysozyme activities were determined in the blood. During the study, the authors noted a decrease in lyso-zyme, bactericidal activity relative to the indicators of the control group, however, the difference did not reach significant differences. Also observed a sig-nificant inhibition of the functional state of the number of blood neutrophils: a decrease in phagocytic activity reliably observed from 5 months by 27.02%, from 7 month by 41.9% to 9 month, the index decreased by 50,66% as compared to control; at the phag-ocytic number of reliable decrease was ob-served at 4 months 11.3% at 6 months had decreased by 24.86%, and the 9 month preg-nancy reduction made up 28.81%, the phag-ocytic index, starting with the 5th month of pregnancy was significantly decreased by 32.05%, to 8 month decreased by 48.31% and for 9 months had decreased by 50% compared to control. Therefore, in the period of pregnancy in the organism of cows, the development of sec ondary immunodeficiency is noted, which is directly associated with fetal gestation. The data obtained can be useful in correction factors of natural resistance during pregnancy of cows.


Author(s):  
L. Syarova ◽  
A. Vostroilov

In Transnistria own production is not able to meet the needs of meat processing enterprises in beef. Due to natural and climatic conditions beef breeds are not grown in this region. All beef production in Transnistria is carried out at the expense of dairy breeds of cattle. The search for ways to effectively produce beef in Transnistria is an urgent problem. The purpose of the research was to determine the effectiveness of the use of purebred Black-and-White steers and crossbreds with Holstein breed in the production of beef in Transnistria. A comprehensive study of meat productivity and meat qualities of purebred and crossbred steers, when they are reared and fattened to different age periods. In all age periods the steers of the experimental group surpassed their herdmates in live weight. It has been found that at the age of 3 months the difference was 14,8 kg (P < 0,01), 6 – 23,9 kg (P < 0,001), 9 – 21,4 kg (P < 0,001), 12 – 38,1 kg (P < 0,001), 15 – 40,3 kg (P < 0,001), and 18 months – 33,5 kg (P < 0,001). The maintenance and fattening of young animals in equal conditions allowed to reveal the most optimal variant of rearing of crossbreds to 18-month age with a live weight of 500–510 kg and their transfer to slaughter. Characterizing the profitability of production of live weight gain in the experimental group of animals, it has been found that the most profitable (34,8 %) was the rearing of animals up to 18 months of age, which is by 2,3 % higher than when rearing steers up to 16 months of age, and 2,4 % higher than when rearing them up to 20 months of age.


Author(s):  
Z. Fedorova

In order to fi ll the existing protein defi ciency in the rations of farm animals in particular dairy cows it is necessary to input feed lupins as widely as possible in crop rotations. Lupin is a very versatile forage crop it can be used in feed as herbage, in the form of haylage, silage, in compound feed as a protein additive, as well as a green manure crop to increase soil fertility. Questions of protein nutrition should be to be quickly resolved, both in the production of protein and in its standardized rational use. Unbalanced protein rations increase feed consumption per unit of production, thereby increasing its prime cost. In the world soya is generally recognized as a protein feed, but in the Kaliningrad region as in most of regions in our country, it does not maturate being a heat-loving crop. Under these environments the inclusion of extruded lupine grain in the composition of energy-protein concentrates for the production of compound feed has become an alternative to replacing expensive soya. The researches have been carried out it the cattle farm of LLC “Temp” in the Guryevsky area in the Kaliningrad region (March-May 2019) on feeding lactating cows energy-protein concentrate from extruded grain of narrow-leaved lupine, fl ax, triticale, subjected to heat treatment on a press extruder. For this purpose two groups of lactating cows of Black-and-White breed (control and experimental) have been formed using the method of pairs of analogs per 11 heads in each. Cows of the control group have received the main ration of the farm, and cows of the experimental group in addition to the main ration have received compound feed with extruded energy-protein concentrate based on lupine. As a result of research, the positive infl uence of energy-protein concentrate based on lupine in compound feed on the dairy productivity of cows has been established. Recipes of concentrate and compound feed with concentrate for lactating cows, the volume of inclusion of components in the concentrate and in the compound feed have been calculated. During the experiment, the milk yield in the experimental group of cows has increased by 62,4 kg or 8,0 %, than in the control group. From the cows of the experimental group the conditional profi t has been received in the amount of 1684,8 rubles per head.


Author(s):  
S. Sukhanova ◽  
N. Pozdnyakova ◽  
F. Yaroslavtsev

The results of researches on the development of new mineral feed additives based on raw materials produced by Uralchem and the study of the eff ectiveness of their use in the rations of lactating cows have been presented in the article. The experiment has been carried out in the conditions of LLC “PF Barabinskoe” in the Dalmatovsky area in the Kurgan region where 3 groups of lactating cows of Black-and-White breed have been formed. Animals in the control group have been received the ration adopted in the farm, the 1st experimental group with the additive RusMA No. 1 at a dose of 150 g, the 2nd experimental group– with the additive RusMA No. 2 at the dose of 350 g. The use of experimental mineral additives in feeding lactating cows allowed us to increase their milk productivity and profi tability of production. At the same time, the best eff ectiveness was shown by the additive RusMA No. 2 at the dose of 350 g/head/day. The use of RusMA additives during the experiment period (105 days) allowed to increase the milk productivity of cows in the 1st experimental group by 6,03 % and in the 2nd experimental group by 8,24 %. Taking into account the fat content in milk, this diff erence was 6,31 and 8,53 %, respectively. The energy value of milk from cows of the experimental groups was higher compared to the control group by 2,45 and 1,76 %, respectively. According to the content of dry matter in milk, cows of the 2nd experimental group exceeded the control and 1st experimental group by 0,39 and 0,12 abs.%, respectively. The maximum milk fat content has been observed in the milk of cows of the 1st experimental group by 0,03 and 0,01 abs.% more than in the control and 2nd experimental groups, respectively. In terms of protein content, the cows of the 2nd experimental group signifi cantly exceeded the control group by 0,10 abs.% and the 1st experimental by 0,04 abs.%. The content of milk sugar in the 2nd experimental group was higher than in the control by 0,30 abs.% and compared to the 1st experimental by 0,11 %. Signifi cantly more calcium and phosphorus were contained in the milk of cows of the 2nd experimental group by 4,58 % (Р ≤ 0,001) and 2,86 % (Р ≤ 0,05), compared with the control group. The expenditures of feed in the EFU for the production of 1 kg of milk in animals of the 2nd experimental group was less by 5,13 % than in control cows and by 2,63 % compared to the 1st experimental group. The prime cost of 1 centner of milk was lower in the 2nd experimental group by 3,94 %, in the 1st experimental group by 2,65 % compared to the control group. The level of profi tability of milk production in the 2nd experimental group was higher by 9,0 and 1,0 abs.% in comparison with the control and 1st experimental groups, respectively.


The article is devoted to the solution of an urgent problem- influence of different lighting modes on the dairy productivity of cows. 2 groups of cows with 20 heads each were formed. In control group, light in the cowshed was 50-75 Lux for a light period of 7.5 h in January to 16.5 h in June, and in experimental group - 150-200 Lux and 16 h, respectively. It was found that the intensity and duration of illumination affects physiological state, reproductive ability and milk productivity of cows. In the experimental group of cows, compared with the control group, hemoglobin content in blood increased by 4.6% (P < 0.01), red blood cells - by 20.6% (P < 0.05), total protein - by 11.2% (P < 0.001), glucose - by 39.1% (P < 0.05). There was a tendency to increase the total calcium and inorganic phosphorus in blood serum of cows of the experimental group. The level of alkaline phosphatase in blood serum of cows in the control group was 71.5% (P < 0.01) higher than that of cows in the experimental group. Milk yield per 1 cow in the experimental cowshed was 433 kg more than in the control. The cost of 1 kg of milk in the experimental group was 0.94 rubles lower, and the profitability of milk production and sales is 9.42% higher than in the control group. To increase the milk productivity of cows, it is recommended to increase light level in barns for tethered keeping to 150-200 Lux, with the duration of lighting in the winter and transition periods of year up to 16 hours per day.


2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii178-ii178
Author(s):  
Xing Zhang ◽  
Fuqiang Zhang ◽  
Mingyao Lai ◽  
Juan Li ◽  
Yangqiong Zhang ◽  
...  

Abstract OBJECTIVE To explore the effect of group medical games on the hospitalization adaptability of pediatric patients with neuro tumor. METHODS pediatric patients with neuro tumor (age:6 to 13 years) who were treated in hospital from June to December 2019 and were hospitalized for 1 month to 2 months. 29 pediatric patients(mean age:9y) were selected as the control group and treated as usual; 26 pediatric patients(meanage:8y) were selected as the experimental group for group therapeutic play intervention. Interventions last Monday, Wednesday and Friday of each week, with an average duration of one hour. Group medical play include: medical picture book education, medical preview game, emotional games, social table games. Two groups completed self-made questionnaires at the time of admission and two weeks after admission, including: diet, sleep, compliance, and social status, hospital adaptation and other related issues, two groups completed a satisfaction questionnaire after two weeks of admission, recorded analysis and compared the difference of questionnaire data and satisfaction of the two groups of pediatric patients. RESULTS There was no statistical difference in age and sex between the two groups, and there was no significant difference in baseline RESULTS: The re-test results showed that the experimental group was significantly better than the control group in terms of social status, hospital adaptation, compliance and family satisfaction(p<0.05). CONCLUSION Group medical games can effectively improve the adaptability, compliance and family satisfaction of pediatric with neuro tumor.


2021 ◽  
Vol 7 (5) ◽  
pp. 3445-3451
Author(s):  
Chen Yake

Objectives: In this paper, the effects of tobacco on aerobic exercise ability and physical fitness recovery of college students were studied. Methods: University group sports intervention form: traditional characteristic project (basketball) + Taiji soft ball (R&D intervention project). Exercise time: 3 times/week; Activity duration: 30min; Activity intensity: the heart rate is controlled at 120-140 beats/min. All the college students in the experimental group are students who have never smoked, and the college students in the control group are students who have smoked for more than two years. The other conditions are the same. Results: The exercise time and endurance of experimental groups I and II were significantly lower than those of the control group, and the cardiopulmonary function was significantly lower than that of the control group. The indexes of experimental group II changed significantly compared with experimental group I, and the difference was statistically significant. Conclusion: Cigarette smoke can significantly reduce the aerobic exercise ability and anti fatigue ability. The longer the smoking time, the more serious the adverse effects. Therefore, tobacco smoke and nicotine will damage college students’ aerobic exercise ability and have a negative impact on the recovery of physical fitness after exercise.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 263-264
Author(s):  
Sergey Anikin ◽  
Natalia Shemuranova ◽  
Natalia Garifullina ◽  
Andrey Filatov ◽  
Alexander Sapozhnikov

Abstract The aim of the research was to establish the effectiveness of the use of the feed additive “Lamarin Saldonum.” The feed additive contains Japanese kelp, milk thistle, to increase the milk productivity during the milking period. The studies were conducted on 40 cows of the black-and-white Holstein breed at the age of 2–4 lactation and the amount of milk for the last lactation not less than 7,500 kg. The cows were divided into 4 groups (GE1, GE2, GE3, GC) of 10 heads in each. Cows GE1, GE2, GE3 received 30 days before calving daily feed additive in doses of 0.1, 0.2, 0.3 g/kg, respectively, for 60 days. In the GC animals didn’t receive the feed additive (control group). Control milking was performed every 10 days. Using of feed additive in the ration increased milk productivity. In the 1st month of lactation, the average daily amount of milk in GC was 24.00±0.93 kg, which is 7.4%, 19.6% (P &lt; 0.01), 7.4% less than in GE1, GE2 and GE3, respectively. In the 2nd month, the highest average daily amount of milk in GE2 and GE3, which is 13.4% (P &lt; 0.01) and 4.6% more than the GC, respectively. In the 3rd month, the average daily amount of milk in GE1, GE2, and GE3 was 30.22±2.44 kg, 39.57±2.68 kg, 35.11±2.59 kg, respectively, which is 6.8%, 39.9% (P &lt; 0.01), 24.1% more than in GC. The mass fraction of fat in milk in animals GE1, GE2, GE3 was 0.2–0.92%(P &lt; 0.01) higher than in GC. In the second month of lactation, the mass fraction of protein in GE2 was higher by 0.24% (P &lt; 0.01), in GE3–by 0.14 (P &lt; 0.05) relative to GC. At the 3rd month of lactation, the protein content in milk was 0.29% higher in GE2 (P &lt; 0.001) and GE3-by 0.21% (P &lt; 0.001) than in GC.


2017 ◽  
Vol 13 (10) ◽  
pp. 124 ◽  
Author(s):  
Norhayati Che Hat ◽  
Mohd Fauzi Abdul Hamid ◽  
Shaferul Hafes Sha'ari ◽  
Safawati Basirah Zaid

Implementation of animation as an Arabic language teaching aid is an innovation in creating an atmosphere that can influence student achievement. This study aimed to identify the effectiveness of the use of animation in Arabic language teaching and learning among diploma students at Universiti Sultan Zainal Abidin (UniSZA), Terengganu, Malaysia. A total of 66 diploma students were randomly selected and divided into experimental group (n = 33) and control group (n = 33). The results obtained from the data collected from pre-and post-test for each group were analyzed using t-test in SPSS version 17.0. The results showed a significant difference of (t = 8789, df = 64, p <0.05) between the achievement of the experimental group and the control group in the post test. The difference in mean score of the experimental group and the control group was 33.03. This shows that there is significant improvement in Arabic language according to the groups. The difference prove that the use of animation in learning sessions contribute to the achievement of students in the Arabic language. This study advocate the idea that animation applications can be integrated as part of language teaching aid to positively improve student achievement, classroom learning environment and student motivation. 


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