Morphological indicators of the udder of Tajik Black mottle breed cows under the conditions of the baracati chorvodor farms of the city of Gissar

Abstract

The article provides materials for assessing the morphological indicators of the udder of cows of the Tajik Black-and-White breed. The results of the experiments showed that the cows of the 1st group (15.0 kg) had the most capacitive udder, which is 59.5% of the daily milk yield. Cows of the I-th group exceed the capacity of the mammary gland of cows with a bowl-shaped udder by 3.3% (Р˃0.99) and by 9.0% (Р˃0.999) of cows with a rounded udder. When studying the shape of the nipples in experimental animals, 4 types of nipples were observed: cylindrical, conical, pencil-shaped and pear-shaped. Of these, 44.4% of first-calf heifers had a cylindrical, 40.0% conical and 15.6% had undesirable shapes: 11.1% pencil-shaped and 4.5% pear-shaped. In first-calf heifers of the 1st group 46.7%; animals had cylindrical nipples, group II showed a similar result, first-calf heifers of group III were inferior by 6.7% (Р˃0.999). 40.0% of the experimental cows of the 1st group had a conical shape of the teats, 46.7% of the animals of the 2nd group and 33.3% of the cows of the 3rd group.