2023
DOI: 10.12982/vis.2023.028
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Live yeasts as a non-hormonal alternative to improve the performance of dairy cows

Abstract: The present study aimed to evaluate live yeast dietary supply instead of rbST application in lactating dairy cows. Thirty-five Holstein cows (37.1 ± 7.8 kg/d of milk yield and 524 ± 27 kg of body weight; mean ± SD) were used in a completely random trial to evaluate: 1) rbST: animals treated with 500 mg of rbST every 14 d; and 2) Yeast: animals fed diets containing 40 g/d of live yeast. The trial lasted for five subsequent 14-d periods. Treatments showed no effects on cows’ feed intake. Yeast reduced large and … Show more

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