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Performance and feed intake of beef heifers on rotational grazing of natural grassland receiving protein and energy supplement in cool season Ciência Rural
Kuinchtner,Bruno Castro; Quadros,Fernando Luiz Ferreira de; Jochims,Felipe; Casanova,Pedro Trindade; Dutra,Gabriela Machado; Ongaratto,Fernando; Carvalho,Régis Maximiliano Roos de.
ABSTRACT: The aim of this study was to evaluate the performance and feed intake of grazing beef heifers on two grazing intervals determined by thermal sum related to leaf elongation duration during cool season on natural grasslands. A complete randomized block design experiment with two treatments and three replications was conducted from May to September 2011 in the central part of the state of Rio Grande do Sul, Brazil. The treatments were two thermal sums calculated at 375 and 750 degrees-days (DD) to determine the intervals between grazing periods in a rotational grazing system. Thirty six beef heifers with average age of 18 months old and (initial body weight = 220±14kg) were used, all heifers received ground corn supplement at a rate of 5g kg-1 of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal production; Beef heifers rearing; Grazing system..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000400651
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Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter Ciência Rural
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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