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Влияние теплотехнических качеств ограждающих конструкций и естественной вентиляции на эффективность производства свинины
2009
Dvornik, V.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
The researches were carried out in 2005-2006 at swine complex Zazerye of Mozyr region (the Republic of Belarus), that counts 54 thousand heads annually. The aim of the research is to develop perfect ventilation systems in reconstructed buildings for farrow and weanlings growing, that will provide resource saving and comfort conditions for animals. It is determined that providing perfect microclimate in buildings and energy spends cut for this climate creation in winter period is possible if technological qualities of fence constructions is higher from 0,97 to 2,5 m2 and natural ventilation is used. Microbe semination of the buildings for farrow and weanlings growing at this periods is 1,4-3,6 times lower. During the summer the combination usage of natural and imitation air ventilation is necessary
显示更多 [+] 显示较少 [-]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)
显示更多 [+] 显示较少 [-]Физиологическое состояние и продуктивность бычков в зависимости от качественного состава протеина в рационе
2009
Kovalevskaya, Yu.Yu. | Gurin, V.K. | Kot, A.N. | Kozinets, A.I. | Shorets, R.D., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
It is determined that diets with protein digestibility of 61-66% in organism of a calve activate fermentative processes in rumen, increase digestibility of nutrients at 3,8-10,1% that allows to obtain the average weigh gains of 1036-1075 g, that is at 4,2-8,1% higher than that of control group at forage spends of 6,79-7,04 forage units
显示更多 [+] 显示较少 [-]Молочная продуктивность, распределение и использование энергии первотелками в период раздоя
2009
Kurepin, A.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
Results of the scientifically-economic experience lead in farm Zarechje (Smolevichskij district of the Minsk area) have shown, that perfect metabolizable energy concentration in dry matter of a diet at milking period for first-calve cows is 11,7 MJ/kg. It allows to increase natural milk productivity at 8,24% (27,4 against 25,4 kg) and 4%-milk outcome – at 8,93% as well as effective usage of metabolizable energy for production up to 4,9% (P less than 0,01) and minimum of production warmth loses
显示更多 [+] 显示较少 [-]Особенности миграции токсикантов в трофической цепи лактирующих коров
2009
Rukol, S.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
Solution for ecological purity of livestock products that is presented in our research is monitoring of the polluted by heavy metals and radionuclide areas exploration on the aspect of antioxidants content in soils, forages, livestock products and determination of ratio of toxic matters transition into milk
显示更多 [+] 显示较少 [-]Генетический профиль хряков плановых пород по гену IGF-2 и его влияние на мясо-откормочные качества потомства
2009
Loban, N.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
The influence of polymorphism of gene IGF-2 on feeding and meat qualities of pigs of Belarusian Large White breed was studied. It is established, that frequency of presumptive preferable allele Q gene IGF-2 reaches 0,75-0,98% at boars of meat breeds and 0,34% - at Belarusian Large White breed. The young boars of breed with genotype QQ authentically surpass the analogues with a genotype qq on development, and feeding young pigs – on meat-feeding to qualities. Gene IGF-2 it is possible to consider as genetic marker of growth rate of pigs of the Belarusian Large White breed
显示更多 [+] 显示较少 [-]Состав многолетних агрофитоценозов для северо-восточной части Республики Беларусь
2009
Lukashevich, N.P. | Yanchik, S.N. | Prokhorov, N.F., Vitebsk State Academy of Veterinary Medicine (Belarus)
For soil – climatic conditions of a northeast part of the Republic of Belarus is recommended cultivating four-componential – fodder grass with two leguminous components (meadow clover + Lucerne sowing+ meadow timothy+ meadow fescue), productivity of which green weight has made 500 – 550 centers per hectare, gathering of crude fiber-19-21 centers per hectare. Inclusion of Lucerne sowing in clover-cereal fodder grass has provided a share of a leguminous component on average for four years no less than 75%
显示更多 [+] 显示较少 [-]Оптимальные параметры площади пола и фронта кормления при выращивании ремонтных телок
2009
Moskalev, A.A. | Puchka, M.A. | Tatarinova, G.M., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
Perfect norms of floor area and feeding front are determined for replacement heifers on free stall management. These norms promote creation of more comfortable conditions of management, increase of average daily live weight gains at 9,1%, hemoglobin content – at 4,8%, erythrocyte quantity – at 6,3%
显示更多 [+] 显示较少 [-]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
显示更多 [+] 显示较少 [-]Эффективность скармливания жмыха и шрота из рапса нового сорта Явар в рационах телят
2009
Sapsaleva, T.L. | Radchikova, G.N. | Pilyuk, S.N., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
Rape-cake containing 1,4-1,9% of glycozinolates and 27-30 mMol of erucic acid per 1 kg of dry matter may be implemented in mixed feed KP-1 for calves in amounts of 15% on mass. Feeding animals with mixed feeds KP-1 with rape-cake allows to get the average daily weight gains of 848-865 g at forage spends of 2,49-2,52 forage units per 1 kg of weight gain
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