Serum lipid profile, hepatic function and milk production in cows supplemented with bovine recombinant somatotropin
DOI:
https://doi.org/10.35172/rvz.2017.v24.312Keywords:
cholesterol, triglycerides, AST, GGT, albuminAbstract
Milk production has a considerable increase with the use of bST in dairy cows. However, this
supplementation may have influence on liver function and serum lipid profile. Thus, the aim
of this study was to evaluate the serum lipid profile and liver profile and milk production in
cows supplemented with this hormone. For this, were used ten dairy cows, 90 days
postpartum, with an average of 30 liters/day. Was performed five applications with an interval
of 14 days between them. Blood samples for analysis of cholesterol, triglycerides, AST, GGT
and albumin were made on days zero, 20, 40 and 60 of the experiment. The production of
milk was evaluated in three times within 70 days. There was no difference between groups in
any of the parameters evaluated for both serum lipid profile and liver function, but milk
production was increased in control group. Therefore, it is concluded that supplementation of
bST does not result negative influence on the serum lipid profile of dairy cows in production,
and does not cause liver damage in supplementation for a period of 70 days, and increases
milk production in this period.
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