Статья 'Распределение и использование энергии молодняком разных генотипов' - журнал 'Сельское хозяйство' - NotaBene.ru
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Agriculture
Reference:

Distribution and Use of Energy by the Offspring with Different Genotypes

Pavlova Lyutsiya

Senior Researcher at Yakutsk Research Agricultural Institute 

677001, Russia, respublika Sakha (yakutiya), g. Yakutsk, ul. Bestuzhevo-Marlinskogo, 23/1, kab. 232

LYUCIYA.PAVLOVA.92@MAIL.RU
Romanova Varvara Vasil'evna

PhD in Agriculture

Leading Researcher at Yakutsk Research Agricultural Institute

677001, Russia, respublika Sakha(yakutiya), g. Yakutsk, ul. Bestuzhevo-Marlinskogo, 23/1

varvara.romanova.59@mail.ru
Pavlova Lyutsiya Prokop'evna

Junior Researcher at Yakursk Research Agricultural Institute

677001, Russia, respublika Sakha(yakutiya), g. Yakutsk, ul. Bestuzhevo-Marlinskogo, 23/1

LYUCIYA.PAVLOVA.92@MAIL.RU
Rozhina Evgeniya

livestock specialist at Yakutsk Research Agricultural Institute

677001, Russia, respublika Sakha(yakutiya), g. Yakutsk, ul. Bestuzhevo-Marlinskogo, 23/1

LYUCIYA.PAVLOVA.92@MAIL.RU

DOI:

10.7256/2453-8809.2018.1.27567

Review date:

02-10-2018


Publish date:

17-11-2018


Abstract: The article is devoted to the processes of the distribution and use of energy by purebred Simmental, Simmental Austrian, and Simmental-Holstein heifers. It was revealed that Simmental heifers of the Austrian selection digested nutrients better than those of other groups. The energy of the digested substances in heifers of different genotypes (purebred Simmental, Simmental Austrian selection, Simmental-Holstein) is 81.6, 82.0, 82.2 %% of the digested energy and 55.75, 58.0, 53.2% % of the accepted (gross energy) respectively. Based on the nutrient digestibility data, the animals of all groups were under the same conditions. They all were fed two times a day and drank from buckets. The diet of the experimental animals consisted of grass hay (4 kg), oat haylage (6 kg) and mixed feed (1 kg). Experimental heifers were accustomed to the rations under study during the preliminary period. The gross energy of feed was calculated by the formula: HE (MJ) = 23.9 cP + 39.8 cG + 20.1 cK + 17.5 CBEV. A comparative analysis of digestibility coefficients showed that inthe group of the Simmental Austrian heifers, the digestibility of dry matter was greater by 3.31% and 6 , 86% (Р0.99) and 5.8%, crude fiber - by 5.9% and 8.63% and BEV - by 1.75% and 5.08%, compared with those of other groups. 


Keywords: feed means, digestible energy, digestibility coefficient, digestibility, nutrients, ration, exchange energy, heifers of different genotypes, mineral elements, genotype
This article written in Russian. You can find full text of article in Russian here .

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