1. Physiological response of productively significant parameters of cows to invasion by Fasciola hepatica.
- Author
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Glamazdin, I. G., Fayzullina, I. I., Medvedev, I. N., Sysoeva, N. Yu, Goryacheva, M. M., Kryukovskaya, G. M., and Maryushina, T. O.
- Subjects
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FASCIOLA hepatica , *FAT content of milk , *MILK proteins , *MILK yield , *MILKFAT , *COWS , *DAIRY cattle - Abstract
The level of antibodies to fasciolas in the milk of cows from the Moscow region of Russia was assessed. In a dairy farm in the Moscow region of Russia, a milk sample was taken and the amount of antibodies to Fasciola hepatica (ODRf) and Ostertagia ostertagi (ODRo) was estimated in it. Their level was processed by a multivariate linear regression model with the elucidation of their relationship with the level of milk protein, % milk fat and the interval between past calving. The increase in ODRf turned out to be associated with a decrease in the level of average milk yield per year with a decrease in the average level of milk fat content with an increase in the average time interval between departments in the absence of a significant relationship with the level of protein in milk. The relationship of ODRf and ODRo with milk yield showed an additional, rather than synergistic effect of infection with both parasites at once. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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