Título:	Performance of nellore heifers under integrated crop-livestock and crop-livestock-forest systems in Cerrado region.
Autoria:	MACIEL, G. A. GUIMARAES JUNIOR, R. VILELA, L. SANTOS, D. de C. FERNANDES, F. D. PULROLNIK, K. BRAGA, G. J.
Afiliação:	GIOVANA ALCANTARA MACIEL, CPAC; ROBERTO GUIMARAES JUNIOR, CPAC; LOURIVAL VILELA, CPAC; DARLIANE DE CASTRO SANTOS, UNIVERSIDADE FEDERAL DE GOIÁS; FRANCISCO DUARTE FERNANDES, CPAC; KARINA PULROLNIK, CPAC; GUSTAVO JOSE BRAGA, CPAC.
Ano de publicação:	2015
Referência:	In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 52., 2015, Belo Horizonte. Zootecnia: otimizando recursos e potencialidades: anais. Belo Horizonte: Sociedade Brasileira de Zootecnia, 2015.
Conteúdo:	Abstract: The objective of this study was to compare the performance of Nellore heifers (220 ± 33kg) under different Integrated Crop-Livestock (ICL) and Crop-livestock-Forest (ICLF) Systems, with standardized (10%) herbage allowance. The experiment was conducted at Embrapa Cerrados in Planaltina-DF from April/2013 to January/2015. Urochloa brizantha cv. Piata grass and Eucalyptus urograndis tree were used. The treatments were integrated systems with: (a) 6 years old pasture (control) - ICL6; (b) one year old pasture - ICL1, and; (c) one year old pasture established under trees in a north-south orientation and spacing between rows of 22m (417 trees.ha-1 ) – ICLF22. It was used a randomized complete block design with three replicates. Tukey test (P<0.05) was used to compare treatment means. Average liveweight daily gain (ADG), stocking rate (SR) and liveweight gain per hectare (LWG) were evaluated. The ADG did not differ among treatments. However, one year old pasture established through ICL allowed higher stocking rates than other treatments and greater animal productivity (+42%) than the same grass established by ICLF system. In terms of LWG, ILP6 (300 kg LW.ha-1 .year-1 ) did not differ from ICL1 and ICLF22. Despite of the high animal productivity for all treatments, Integrated Crop-Livestock-Forest system showed lower animal performance (244 kg LW.ha-1 .year-1 ) when compared to one year old Integrated-Crop-Livestock system (421 LW.ha-1 .year-1 )
Thesagro:	Forragem Ganho de Peso Taxa de Lotação
NAL Thesaurus:	Forage Weight gain Stocking rate Animal performance Integrated agricultural systems
Palavras-chave:	Produtividade animal Sistemas integrados
Tipo do material:	Artigo em anais e proceedings
Acesso:	openAccess
Aparece nas coleções:	Artigo em anais de congresso (CPAC)