Concentração do zinco sérico em vacas leiteiras suplementadas com Saccharomyces cerevisiae, portadoras ou não de lesões podais
| Autor: | Da Cunha Filho, Luiz Fernando Coelho, Chiacchio, Simone Biagio [UNESP], Gaste, Laurenil, Gonçalves, Roberto Calderon [UNESP], Vianna, Luis Carlos |
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| Přispěvatelé: | Universidade Norte Do Paraná (UNOPAR), Universidade Estadual Paulista (UNESP), Universidade Estadual de Londrina (UEL), Universidade Do Oeste Paulista (UNOESTE) |
| Jazyk: | portugalština |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2022-04-28T22:37:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-01-01 The present study was conducted to evaluate bovine serum zinc concentration in animals with and without hoof lesions, supplemented or not with Saccharomyces cerevisiae, an organic zinc source. The supplementation was carried out during 180 days. Forty-five Holstein cows were randomly chosen from a dairy herd of 189 lactating cows. The animals were distributed in three groups. In G1, 20 heifers with foot lesions were fed a diet supplemented with S. cerevisae. In G2, 10 heifers without hoof lesions were fed a diet with supplementation. In G3, 15 heifers with hoof lesions were fed a diet without supplementation. Serum samples were collected on day 0, 90 and 180, after the beginning of the experiment. Serum zinc concentration was determined by Atomic Absorption Spectrophotometry. The results showed there not to be an increase significant serum of zinc among the groups, and in the animals inside of the group 1 (G1) it happened an increase (P |
| Databáze: | OpenAIRE |
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