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Сравнительная эффективность различных способов синхронизации половой охоты у коров
2009
Garbuzov, A.A. | Yushkovskij, E.A. | Rubanets, L.N., Vitebsk State Academy of Veterinary Medicine (Belarus)
Analysis of synchronization of oestrus of cows by means of Ovsynch and Pre-Synch methods was realized in the conditions of the Republic of Belarus. Research results showed that estrus synchronization by means of Pre-Synch method proved to be more efficient by means of higher percentage of fertilization after the first and second insemination in comparison with Ovsynch method. Treatment of cows with the substances Surfagon and Tetravit for synchronization of oestrus did not render negative effect on milk quality and safety.
Show more [+] Less [-]Эффективность йодсодержащего препарата при стимуляции половой функции у крупного рогатого скота
2009
Kuzmich, R.G. | Khanchina, A.R. | Eliseev, V.V., Vitebsk State Academy of Veterinary Medicine (Belarus)
Results of studying the efficiency of iodine containing preparation Jodon which was applied to highly productive cows with hypovarianism and to servicing bulls in order to increase their reproductive function realized in the Republic of Belarus were presented. On the basis of realized studies there was proved the considerable efficiency of Jodon preparation.
Show more [+] Less [-]Ген эритропоэтинового рецептора (EPOR) - новый ген-маркер многоплодия свиноматок
2009
Dojlidov, V.A. | Kaspirovich, D.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus) | Loban, N.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus) | Bannikova, A.D., All Russian Research Inst. of Animal Breeding, Dubrovitsy (Russian Federation)
Determination of influence of polymorphism of gene of erythropoetin receptor (EPOR) on productive qualities of sows and reproductive characters of boars of Belarusian meaty breed was realized in the conditions of the Republic of Belarus. Research results proved the possibility of EPOR gene application as a genetic marker which determined productive abilities of swine of Belarusian selection breed. Frequency of undesirable allel EPOR**c of EPOR gene in the analyzed swine stock balanced within the frames of wide range: from 44% for Belarusian meaty breed sows up to 78% for Belarusian Kripnaya Belaya breed sows. Analysis of influence of genotype with EPOR gene on multiple fetation of sows of Belarusian meaty breed showed that sows with the preferred genotype (EPOR**tt) statistically reliable (P less than 0,01) exceeded sows with undesirable genotype (EPOR**cc) in accordance with number of alive birth piglets on 1,7 heads. Among sows of Belarusian Kripnaya Belaya breed with genotype EPOR**ct there were stated multiple fetation indexes exceeding the sows with genotype EPOR**tt on 0,5 heads. Desirable EPOR**tt genotype irrespective of sow age rendered the positive influence on their multiple fetation. It was recommended to realize genetic testing on determination og polymorphism of gene of erythropoetin receptor among the animals of Belarusian meaty and Belarusian Kripnaya Belaya breeds. Selection of parental pairs of the selection nucleus was recommended to realize taking into consideration genotypes, giving preference to animals with EPOR**t allel
Show more [+] Less [-]Органический селен в кормлении племенных бычков
2009
Karpenya, M.M. | Shamich, Y.V., Vitebsk State Academy of Veterinary Medicine (Belarus)
Application in diets of breeding bull calves of an optimum dose of selenium (0,4 mg on 1 kg of a solid of a diet) renders positive influence on formation of reproductive ability of bull-calves: promotes increase daily average gains live weight on 7,1%, indicators of natural resistance – on 0,6-6,7% and to improvement of quality sperm production – on 16,4% during the winter period. During the summer period daily average gains live weight on 6,8%, indicators of natural resistance – on 0,5-13,9% and to improvement of quality sperm production – on 15,7% accordingly
Show more [+] Less [-]Продуктивность и показатели спермопродукции племенных бычков в зависимости от качества протеина в рационе
2009
Kryshton, T.G. | Pilyuk, S.N. | Lyundyshev, V.A. | Vozmitel, L.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
Feeding replacement calves of 369-460,8 kg of live weight with diets of non-degradable protein level that is 10% higher than approved norm increases metabolically energy transformation into weight gain energy from 19,10 to 20,81 MJ or at 9% that promotes increase of average daily weight gains at 5% and decrease of energy spends at 5% counted per 1 unit of energy for weight gain. Ejaculate volume is increased at 14% and sperm concentration – at 12%
Show more [+] Less [-]Продуктивность свиноматок, разводимых в филиале Агрокомплекс Белая Русь ОАО Слуцкий КХП, в зависимости от породной принадлежности и количества опоросов
2009
Timoshenko, T.N., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus) | Lazovskij, V.P., Agricultural complex Belaya Rus, Branch of JSC Slutsk Group of the Bread Producers (Belarus)
In the conditions of the Agricultural Complex Belaya Rus the highest productive values of sows are obtained in period of the fourth-sixths farrowings. The highest level of reproductive traits is shown by sows of Landrace and Belorusian meaty breeds
Show more [+] Less [-]Репродуктивные качества свиноматок в системе переменного скрещивания
2009
Dojlidov, V.A. | Lobatskij, A.K., Vitebsk State Academy of Veterinary Medicine (Belarus)
The analysis of data on a complex of reproductive qualities crossing sows has shown, that the combinations used in the classical scheme of variable crossing have appeared are less effective in comparison with the combinations including foreign meat breeds. It is recommended to change the traditional scheme of variable crossing, having excluded from it the Belarus black-motley breed and having entered foreign breeds of L and D and also to use hybrid male pigs (D x P)
Show more [+] Less [-]Оптимизация уровня обменной энергии и незаменимых аминокислот в комбикормах для ремонтных свинок
2009
Roshchin, V.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
Balancing of mixed feeds for replacement gilts considering the metabolically energy level and essential available amino acids amount increases growth speed of animals at 9,6% (P less than 0,05) compared to mixed feeds prepared in correspondence with detailed norms of feeding; it also decreases terms of animals pedigree usage from 277 to 223 days
Show more [+] Less [-]Воспроизводительная способность и естественная резистентность быков-производителей при использовании в кормлении различных уровней витаминов и микроэлементов
2009
Shlyakhtunov, V.I. | Karpenya, M.M. | Karpenya, S.L., Vitebsk State Academy of Veterinary Medicine (Belarus)
Application in diets of producing bulls of the increased doses of vitamins and trace elements promotes the increasing of indexes of their reproductive ability on 6,3-12,4% and natural resistance on 3,3-8,8% during the winter and summer periods, and also allows to receive profit on 1 ruble of expenses 3,7 rubles
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