Abstract
A comparative assessment of the reproductive qualities of beef-cows of the Hereford and Kazakh white-headed breeds is given, depending on the Body Condition Scoring. In the scientific and economic experiment in three farms on 3 groups of cows of two breeds, the influence of Body Condition Scoring on the reproductive qualities of cows was studied. It was found that cows with a Body Condition Scoring of 6 points have a significantly shorter service period (by 10-13 days) and the interval between calving (by 6-9 days), with an increase in the duration of pregnancy by 2-4 days, compared with cows with a score of 3 points. The calf crop per 100 cows, in groups with 6 Body Condition Scoring points, was higher than in groups with 3 Body Condition Scoring points by 9.2, 8.3 and 5.1%.
Highlights
One of the main tasks facing the country's beef cattle breeding is to increase beef production and reduce its cost price
Studies conducted by scientists from different countries earlier show that the state of Body Condition Scoring of cows affects the live weight, the level of productivity and reproductive qualities, the state of health and the duration of animal use [1,2,3,4,5,6]
The purpose of the study is to identify the relationship between the Body Condition Scoring of cows and their reproductive qualities, and the live weight of calves when weaning from mothers
Summary
One of the main tasks facing the country's beef cattle breeding is to increase beef production and reduce its cost price. This task can be solved by increasing the number of livestock, the productivity of livestock, or by both. To increase the number of livestock, it is necessary to solve the problems of reproductive qualities of beef-cows. The main task of herd reproduction is to get at least one calf from each cow per year. Studies conducted by scientists from different countries earlier show that the state of Body Condition Scoring of cows affects the live weight, the level of productivity and reproductive qualities, the state of health and the duration of animal use [1,2,3,4,5,6]
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