Data/hora: 01/06/2024 18:10:27

Provedor de dados: | Revista Brasileira de Zootecnia
País: | Brazil
Título: | Animal production in Tanzania grass swards fertilized with nitrogen
Autores: | Canto,Marcos Weber do; Bona Filho,Amadeu; Moraes,Aníbal de; Hoeschl,André Ricardo; Gasparino,Eliane.
Data: | 2009-07-01
Ano: | 2009
Palavras-chave: | Animal performance; Nitrogen fertilization; Panicum maximum; Tropical grass.
Resumo: | Nitrogen (N) at 100, 200, 300, and 400 kg ha-1 was applied to Tanzania grass swards to evaluate the animal response and relationships between sward characteristics and the performance of young Nellore bulls (Bos indicus) under continuous stocking. A completely randomized experimental design was used with two replications between 11 November 2001 and 15 April 2002 when the sward heights were maintained at 60 cm by using different stocking rates. The average daily gain (ADG) (0.73 kg d-1) was not affected by N doses while the number of animal days ha-1 increased linearly from 515 to 1267. On the other hand, the linear increase in the animal yield was 399, 653, 755, and 895 kg ha-1 for N at 100, 200, 300, and 400 kg ha-1, respectively, while the ratio between the liveweight gain (kg) and N (kg ha-1) decreased. Correlation coefficients between ADG and herbage mass, green leaf mass, green herbage mass, proportion of green leaf and leaf:culm ratio were low and nonsignificant. Under the conditions in Northwestern Paraná, the application of N to swards of Tanzania grass is a management option for increasing beef cattle production.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000700003
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982009000700003
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.38 n.7 2009
Fonte: | info:eu-repo/semantics/openAccess