@article{Baimukanov Dastanbek Asylbekovich_Abugaliyev Serimbek Kurmanbaiuly_Seidaliyev Nurzhan Beskempirovich_Semenov Vladimir Grigoryevich_Chindaliyev Askhat Erbosynovich_2019, title={PRODUCTIVITY AND ESTIMATED BREEDING VALUE OF THE DAIRY CATTLE GENE POOL IN THE REPUBLIC OF KAZAKHSTAN}, url={https://journals.nauka-nanrk.kz/bulletin-science/article/view/1611}, abstractNote={<p>With a linear estimation of the physique of first-calf heifers, it is established that in cows of domestic<br>breeds, the parameters correspond to the optimal points of the species and the indicators of the extremities, but the<br>parameters of the udder differ sharply. All the data on productive and exteriors were entered into the program of the<br>Information and Analytical System (IAS), where the estimated breeding value of the studied cows was automatically<br>calculated. The average estimated breeding value (EBV) for all breeds was 81.4. Among all breeds, the highest EBV<br>level was determined in Holstein cows (84.3) of imported selection.<br>The average milk yield of the studied herds per 1 cow was 5300± 30 kg of milk, with a mass fraction of fat of<br>3.74±0.02%, the mass fraction of protein of 3.16±0.01%, with a content of 324.7±23.8 thous. of somatic cells. The<br>most productive were the cows of the Holstein breed, their productivity over the Alatau breed was 694 kg (P>0.99),<br>over the black-and-motley breed it was1446 kg (P>0.999), over the Simmental breed it was 1982 kg (P>0.999), over<br>the red steppe - 2038 kg (P>0.999), no significant difference was found in the content of fat and protein of cow.<br>Somatic cells were within normal limits. When studying the dynamics of milk yields according to lactation, it is<br>established that the milk productivity of the Alatau breed is characterized by growth (4844... 5679... 5458 kg) by the<br>second-third lactation and gradual decrease (4716... 4017 kg) by the fifth. On average, for all lactations, cows of this<br>breed brought 5123±275.4 kg. The dairy productivity of Holstein cows is increased by the fifth lactation, without<br>recessions. On average, for cows of black and motley breed for all lactations, the milk yield was 4671±190 kg. Dynamics of milk yield of the Simmental breed increases from the first to the second lactation (3917... 4035 kg), in the<br>third it decreases (4035... 3334 kg), from the fourth to the sixth lactation the sequence increases.</p>}, number={1}, journal={Научный журнал «Вестник НАН РК» }, author={Baimukanov Dastanbek Asylbekovich and Abugaliyev Serimbek Kurmanbaiuly and Seidaliyev Nurzhan Beskempirovich and Semenov Vladimir Grigoryevich and Chindaliyev Askhat Erbosynovich}, year={2019}, month={фев.}, pages={39–53} }