Refine search
Results 31-40 of 68
Оптимизация энергопротеинового отношения в рационах высокопродуктивных коров в период раздоя
2009
Goryachev, I.I., Vitebsk State Academy of Veterinary Medicine (Belarus)
The recipe of mixed fodder is developed for cows with a 6-8 thousand kg yield of milk for a lactation during the period yield of milk, different the raised maintenance of a crude protein (18%) that allows to increase a yield of milk of animals by 6,6% (22,5 kg instead of 21,1 kg of 4% milk a day) to reduce the expense of forages on production unit to 6,4% (0,73 fodder units against 0,78 fodder units per 1 kg of milk). At the expense of additional production economic benefit makes 104,4 thousand rbl. counting on 1 head
Show more [+] Less [-]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
Show more [+] Less [-]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
Show more [+] Less [-]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
Show more [+] Less [-]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%
Show more [+] Less [-]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%
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 [-]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
Show more [+] Less [-]Эффективность применения заменителей цельного молока при выращивании телят
2009
Sakhanchuk, A.I. | Kallaur, M.G. | Kirikovich, S.A. | Dargel, T.B. | Kurepin, A.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
As a result of the conducted researches it was determined that replacement of milk in diets for suckling calves with whole milk substitute Komnilakt-50/2101 allows to significantly reduce the price and increase profitability of pedigree heifers growing that corresponds demands of the standard of classification for young cattle of 3 months of age on live weight of 90-105 kg at planned live weight of cows of 500-600 kg
Show more [+] Less [-]Естественные защитные силы гусей при включении в рацион коэнзима В12 в весенне-летний период
2009
Skobelev, V.V., Vitebsk State Academy of Veterinary Medicine (Belarus)
In given article natural resistance of geese during the spring-and-summer period is considered at inclusion in a diet coenzyme B12. Namely, dynamics bactericidal, lysozyme activity of blood of geese, dynamics of phagocytosis activity, the general fiber in blood whey, dynamics of fiber gamma-globuline fraction and reliability of distinction between groups is resulted
Show more [+] Less [-]