Efeitos da suplementaçao de selênio e vitamina E em bovinos leiteiros
Material type:
ArticleLanguage: Portuguese Description: 27(2):405-408Subject(s): Online resources:
In:
Revista Brasileira de ZootecniaSummary: The present experiment was conducted to evaluate the effects of selenium and vitamin E in dairy cows. Fourty eight crossbreed cows (Holstein x Zebu) were randomly distributed in the following treatments: A) Control; B) Oral supplementation with 5 mg of selenium; C) Oral supplementation with 500 IU of vitamin E and D) Oral supplementation with 5 mg of selenium plus 500 lU of vitamin E . Blood cows samples were collected in the beginning of the experiment and after calving, and of the calves just after the birth. The effects of the treatment were verified in the serum levels of selenium and in the incidence of sub-clinics mastitis, determined through the CNIT test. The supplementation with 5 mg of selenium ii the last gestation month increased the serum levels of the mineral in the cows and it reduce the the incidence of sub-clinics mastitis diagnosed through the CNIT test. The calves, from supplemented cows, presented serum levels of selenium 66 percent higher to the others. (RA)
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The present experiment was conducted to evaluate the effects of selenium and vitamin E in dairy cows. Fourty eight crossbreed cows (Holstein x Zebu) were randomly distributed in the following treatments: A) Control; B) Oral supplementation with 5 mg of selenium; C) Oral supplementation with 500 IU of vitamin E and D) Oral supplementation with 5 mg of selenium plus 500 lU of vitamin E . Blood cows samples were collected in the beginning of the experiment and after calving, and of the calves just after the birth. The effects of the treatment were verified in the serum levels of selenium and in the incidence of sub-clinics mastitis, determined through the CNIT test. The supplementation with 5 mg of selenium ii the last gestation month increased the serum levels of the mineral in the cows and it reduce the the incidence of sub-clinics mastitis diagnosed through the CNIT test. The calves, from supplemented cows, presented serum levels of selenium 66 percent higher to the others. (RA)