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Soares,Émerson Mendes; Quadros,Fernando Luiz Ferreira de; Carvalho,Régis Maximiliano Roos de; Oliveira,Leandro Bittencourt de; Jochims,Felipe; Dutra,Gabriela Machado; Fernandes,Augusto Miranda; Trindade,José Pedro Pereira; Ilha,Gustavo Freitas. |
The aim of this study was to evaluate the performance of beef heifers in natural grassland under continuous and rotational grazing during the autumn-winter period. The treatments were distributed in a completely randomized design and conducted using the forage mass above eight cm and 50% of the leaf blades mass of tussocks. The animals were Brangus beef heifers with initial body weight of 258kg. The variables evaluated were available forage mass (FMa), leaf blades mass of tussocks (LBMt), real forage allowance (FAr), sward height of the lower stratum (HLS), crude protein (CP), neutral detergent fiber (NDF), organic matter digestibility (OMD), total digestible nutrients (TDN), average daily gain (ADG), body condition score (BCS), reproductive tract score... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pampa biome; Reproductive tract score; Grazing methods; Heifers rearing; Sward height.. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001859 |
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Landarin,Carolini Machado; Lobato,José Fernando Piva; Tarouco,Adriana Kroef; Tarouco,Jaime Urdapilleta; Eloy,Lidiane Raquel; Pötter,Luciana; Rosa,Antônio Augusto Galarza. |
ABSTRACT Aiming at breeding heifers with 14-15 months of age, 100 Hereford calves were subjected to different feeding systems. Heifers grazed on a natural pasture in early winter, fed or not a supplement (14% crude protein; 72% total digestible nutrients), were transferred to a ryegrass pasture for 73 days, and then returned to a natural pasture for 15 days until the beginning of the breeding season. During the last 15 days on ryegrass pasture and the 15 days of the return to the natural pasture, half of the heifers of the two previous systems were offered the supplement, thereby establishing four feeding treatments. Heifers supplemented during the second period, independently of supplementation during the first grazing period, presented higher average... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Backfat thickness; Natural pasture; Pelvic area; Reproductive tract score; Rib eye area; Supplementation. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001100667 |
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