Data/hora: 05/06/2024 08:22:53

Provedor de dados: | 96
País: | Brazil
Título: | Replacement of soybean meal by cottonseed meal in diets based on spineless cactus for lactating cows
Autores: | Silva,Fabiana Maria da; Ferreira,Marcelo de Andrade; Guim,Adriana; Pessoa,Ricardo Alexandre Silva; Gomes,Luiz Henrique dos Santos; Oliveira,Júlio César Vieira de.
Data: | 2009-10-01
Ano: | 2009
Palavras-chave: | Concentrate; Dairy cows; Protein.
Resumo: | The objective of this study was to evaluate the replacement of soybean meal by cottonseed meal in the diet of dairy cows fed diets based on spineless cactus. Five Girolando lactating cows were used, with average live weight of 490 kg and average production of 11.5 kg of milk/day, distributed in a 5 × 5 Latin square design (5 animals, 5 treatments and 5 experimental periods). Each experimental period lasted 15 days, 10 days being for the adaptation of the animals to the diet and 5 days for data collection. The experimental diet consisted of spineless cactus (53%), sorghum silage (32%) and concentrate (15%). The cottonseed meal replaced 0, 25, 50, 75 and 100% of soybean meal in the concentrate. The intake, milk yield and composition were evaluated. The nutrients intake and digestibility were not affected by the treatments, with an average of 15.55 and 56.05; 13.8 and 59.31, 0.37 and 49.40, 5.32 and 30.95, 1.79 and 48.14; 9.94 and 54.31, 4.43 kg/day and 80.99%, for the dry matter, organic matter, ether extract, neutral detergent fiber, crude protein, total carbohydrates and non-fibrous carbohydrates, respectively. The total digestible nutrients were not affected (average of 8.30 kg/day). Similarly, the milk yield and composition, fat corrected milk yield (4%), lactose, total solids, fat and protein were not affected by replacement (11.56, 11.41 kg milk/day and 4.45, 12.75, 3.95 and 3.42%, respectively). Recommended the replacement of soybean meal by cottonseed meal for low production dairy cows.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001000020
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982009001000020
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.38 n.10 2009
Fonte: | info:eu-repo/semantics/openAccess