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Formation of a breeding group of cows based on a complex breeding index
Vestnik Omskogo gosudarstvennogo agrarnogo universiteta, 2022I.P. Ivanova, E.N. Yurchenko
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Controlled breeding of dairy cows with cloprostenol.
The Canadian veterinary journal = La revue veterinaire canadienne, 2010The percentage of dairy cows that were mated and became pregnant during a 42 day breeding period was not significantly different when animals were routinely observed for estrus and mated when detected (71%, n = 56), inseminated at estrus following a single injection of cloprostenol (72%, n = 29), or inseminated at a fixed time after two cloprostenol ...
G J, King, E B, Burnside, R A, Curtis
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Rice Straw Pretreatment Using Cow Breeding Wastewater for Methane Production
Bioresource Technology, 2022Lei Xu, Zhongjiang Wang
exaly
BREEDING CHARACTERISTICS OF PRIZE COWS SIRES’DECENDENTS
SCIENTIFIC LIFEThe impact on the cattle herds’ gene pool depends on the genetic contribution of such categories of breeding animals as fathers of cows (OK), mothers of cows (MK), fathers of fathers of cows (OOK), mothers of fathers (MO), fathers of mothers (OM), so on.
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