Reproductive ability and productive longevity Ukrainian black and red and white dairy cattle
2012
BASCHENKO, M. | Gonchar, O. | SOTNICHENKO, Y.
Features of reproductive ability of cows of the Ukrainian black-motley and red-motley dairy breeds, influence of reproductive ability on duration of productive use are studied, the reasons of their leaving from herd and communication between indicators of dairy efficiency and reproductive ability of cows are analysed. It is established, that duration of the service-period within 64- is 106 days optimum value for reception of dairy efficiency at level 5452-6235 kg of milk for a lactation at cows of investigated herds.
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