Sugarcane with Elephant grass replacing sugarcane with urea in the diet of crossbred dairy cows1
| Autor: | Luiz Henrique dos Santos Gomes, Rogério de Paula Lana, César Roberto Viana Teixeira |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Meal
040301 veterinary sciences Soybean meal 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences Biology 040201 dairy & animal science Milking Cattle feeding 0403 veterinary science Animal science animal nutrition cattle digestibility feed evaluation intake milk Latin square Animal Science and Zoology Dry matter lcsh:Animal culture Animal nutrition Dairy cattle Food Science lcsh:SF1-1100 |
| Zdroj: | Acta Scientiarum: Animal Sciences, Vol 42, Pp e48004-e48004 (2020) Acta Scientiarum. Animal Sciences; Vol 42 (2020): Publicação contínua; e48004 Acta Scientiarum. Animal Sciences; v. 42 (2020): Publicação contínua; e48004 Acta Scientiarum. Animal Sciences Universidade Estadual de Maringá (UEM) instacron:UEM |
| ISSN: | 1807-8672 1806-2636 |
| Popis: | The objective was to evaluate the partial substitution of sugarcane treated with urea by elephant grass in the feeding of crossbred cows in lactation. Eight crossbred cows (Holstein x Gyr) were used, with 474 kg of body weight (standard deviation = 46.15 kg) and 8.15 kg of milk per day. The animals were housed in individual stalls, distributed in two 4 x 4 Latin squares, and the treatments were: sugar cane; sugar cane corrected with 0.5% of urea and ammonium sulfate (9:1); 75% of sugar cane + 25% of elephant grass and 50% of sugarcane + 50% of elephant grass, based on natural matter. In addition to the treatments, it was provided water and mineral salt ad libitum and 3 kg of concentrate supplement (24% crude protein), based on corn meal and soybean meal, supplied in two portions during the morning and afternoon milking. There was a treatment effect on the intake and digestibility of dry matter and nutrients, except for non-fibrous carbohydrate intake, and there was no effect on milk production and composition. It can be concluded that the substitution of sugarcane by elephantgrass (25 and 50%) increases the intake and decreases the digestibility of DM and OM, without affecting milk production, when the cows are supplemented with 3 kg of concentrate, containing 24% of protein per day. |
| Databáze: | OpenAIRE |
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