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https://locus.ufv.br//handle/123456789/31294
Tipo: | Artigo |
Título: | Influence of irrigation and supplementation on performance and ingestive behavior of beef cattle on mixed grass pastures |
Autor(es): | Bones, Everton Robert Paris, Wagner Costa, Olmar Antônio Denardin Paula, Adalberto Luiz de Belli, Vanesa Pitro Neves, Ana Carla da Silva Menezes, Luis Fernando Glasenapp de |
Abstract: | The purpose of this study was to evaluate the performance of beef cattle with two levels of energy-protein supplementation of low-consumption on African Bermudagrass pasture, overseeded in winter with oat and ryegrass, with or without irrigation. Twenty-four castrated Angus steers (11 months old and had an initial average of 220 kg body weight (BW)) were used in experimental area of 3.6 ha. The experiment was completely randomized in a 2×2 factorial design, with three replicates. The evaluation period was 249 days (July/2019 to March/2020). The treatments were: irrigated pasture with supplementation of 1 g/kg BW or 2.7 g/kg BW and non-irrigated pasture with 1 g/kg BW of supplement or 2.7 g/kg BW. The grazing method was continuous with a variable stocking rate. Irrigation provided pastures with better chemical composition in winter and spring. Irrigation increased the daily accumulation rate in winter (84.6 vs. 45.9 kg DM/ha/day), providing a greater stocking rate (1,702 vs. 1,385 kg/ha) and, consequently, body weight gain per hectare. Supplementation of 2.7 g/kg BW provided a greater stocking rate in winter (1,652 vs. 1,435 kg/ha) and spring (3,096 vs. 2,811 kg/ha), not changing in summer. The association of irrigation and supplementation of 2.7 vs. 1.0 g/kg BW improves the intake pattern by the animal in summer without changing productivity parameters. Irrigation increases productivity and the nutritional value of pasture with higher livestock production per area in periods of water deficit. The supply of 2.7 vs. 1.0 g/kg BW provides a greater stocking rate and body weight gain per hectare |
Palavras-chave: | Cynodon nlemfuensis energy-protein supplement grazing systems oat pasture ryegrass pasture |
Editor: | Brazilian Journal of Animal Science |
Citação: | Bones, E. R.; Paris, W.; Costa, O. A. D.; Paula, A. L.; Belli, V. P.; Neves, A. C. S. and Menezes, L. F. G. 2023. Influence of irrigation and supplementation on performance and ingestive behavior of beef cattle on mixed grass pastures. Revista Brasileira de Zootecnia 52:e20220055 |
Tipo de Acesso: | Creative Commons Attribution License |
Identificador DOI: | R. Bras. Zootec., 52:e20220055, 2023 |
URI: | https://locus.ufv.br//handle/123456789/31294 |
Data do documento: | 1-Ago-2023 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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1806-9290-rbz-52-e20220055.pdf | artigo | 339,88 kB | Adobe PDF | Visualizar/Abrir |
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