Index of dairy productivity of mares of novoоleksandrovsky heavy breed by season production of milk

  • T. Yusiuk
Keywords: milking productivity, index of milking, lactation, live weight, mares, line

Abstract

Statement of a problem. Influence on efficiency of live weight as one of indicators development of animals, it was studied by many authors. Most of them express opinion on need of establishment optimum level of live weight of animals at which payment of forages by production will be high, and production of milk by the most profitable. The question of interrelation live weight with dairy efficiency is very relevant, especially when forming milking herd from mares of heavy breeds, characterized by a high milk yield. In dairy horse breeding the amount of milk per100 kg of live weight of a mare (the index of a milking) matters: the more milk makes an animal per unit weight, the better she pays a forage. Thus, on koumiss farms it is necessary to select mares with a wide trunk, the long body, well developed breast, a wide and long croup.Research objective. To investigate the index of a milking of novoaleksandrovsky mares heavy breed, his interrelation with live weight and number lactation at seasonal milking.Materials and methods. The research is conducted on a breeder producer of novoaleksandrovsky heavy breed of Dibrovsky horse-breeding center № 62. Were used given to dairy efficiency from 24 mares for 2015‒2017.Results. Linear accessory has reliability with milk yield of F(4, 43) = 4,16; p˂0,01. The interrelation of weight of mares with their dairy efficiency is doubtful at r = 0,25; F(1,22) = 1,45; р>0,05. The dependence of the index of a milking on a lactation is reliable F(1,22) = 11,45; р˂0,01.Conclusions. The received index of milking of novoaleksandrovsky mares heavy breed is small. For heavy breed the desirable index of a milking from 410 and more. The tendency to increase in the index of a milking at reduction  live weight is observed (the coefficient of correlation makes ‒0,63; р = 0,001). On the available data, we consider that experiences in this direction will be perspective for breeding work.

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Published
2018-02-19
Section
Agricultural sciences (agronomics, agricultural ecology, land reclamation, ecology, crops husbandry, farming)