Substituição de silagem de milho por cana-de-açúcar e caroço de algodão nos parâmetros ruminais, síntese de proteína microbiana e utilização dos nutrientes em vacas lactantes
Carregando...
Data
2008-03
Título da Revista
ISSN da Revista
Título de Volume
Editor
Jose Henrique Stringhini
Resumo
Five multiparous H olstein cows averaging 525.91
kg BW and 85 days in milk were assigned in a 5 x 5 Latin in the rumen and proximal duodenum and were fed a
50:50 concentrate:forage diet (DM basis). T reatments
were defined by the replacement of corn silage by chopped
sugarcane (whole plant) plus whole cottonseed in the
following proportions: 100:0 (control); 75:25; 50:50; 25:75;
0:100 in the DM basis. D ry matter intake (DMI) of cows
fed 100, 75, and 50% corn silage diets was higher (P<0.05)
than DM I of cows fed 25 and 0% corn silage. Ruminal
degradability and total tract digestibility of neutral detergent
fiber and acid detergent fiber were not affected (P>0.05)
by treatment diets. T otal digestibilities of crude protein in square to evaluate the effects of corn silage replacement by
sugarcane plus whole cottonseed. C ows were cannulated diets containing up to 50% of sugarcane were lower than
in diets containing 75 or 100% of sugarcane. Ruminal
ammonia concentration decreased (P<0.05) with sugarcane
and whole cottonseed inclusion. C oncentrations of acetic,
propionic and butyric acids as well as total volatile fatty
acids concentration were higher (P<0.05) with sugarcane
inclusion up to 50% level. C orn silage can be replaced by
sugar cane plus whole cottonseed up to 50% level of forage
in the diet without negative effect on nutrient utilization by
dairy cows producing up to 18 kg milk/day.
Descrição
Palavras-chave
Ácidos graxos voláteis, FDN, Digestibilidade, Digestibility, NDF, Volatile fatty acid
Citação
PIRES, Alexandre Vaz; SUSIN, Ivanete; SIMAS, José Manuel Corrêa de; SANTOS, Flávio Augusto Portela; MENDES, Clayton Quirino; OLIVEIRA JUNIOR; Reinaldo Cunha de; FERNANDES, Juliano José de Rezende; ARAÚJO, Rafael Canonenco de. Substituição de silagem de milho por cana-de-açúcar e caroço de algodão nos parâmetros ruminais, síntese de proteína microbiana e utilização dos nutrientes em vacas lactantes. Ciência Animal Brasileira, Goiânia, v. 9, n.1, p. 50-58, jan./mar. 2008. Disponível em: <https://www.revistas.ufg.br/vet/article/view/3660/3427>.