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Behavior pattern of beef heifers supplemented with different energy sources on oat and ryegrass pasture R. Bras. Zootec.
Pizzuti,Luiz Angelo Damian; Alves Filho,Dari Celestino; Brondani,Ivan Luiz; Pacheco,Paulo Santana; Freitas,Leandro da Silva; Segabinazzi,Luciane Rumpel; Callegaro,Álisson Marian; Teixeira,Odilene de Souza.
The objective of this study was to evaluate behavior patterns of heifers grazing on black oat (Avena strigosa Schreb.) and ryegrass (Lolium multiflorum Lam.), fed supplementation with brown rice meal and/or protected fat. A total of 28 Charolais × Nellore crossbred heifers at average initial age of 18 months and with initial live weight of 274.9±4.97 kg were used in the experiment. Animals were kept in oat + ryegrass pastures and distributed in the following treatments: no supplementation; Megalac (MEG): protected fat supplementation; supplementation with brown rice meal (BRM); and supplementation with BRM + MEG. The neutral detergent fiber (NDF) intake of pasture either in kg or in percentage of live weight was not changed by supply of supplement, but...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feeding stations; Grazing; Idle; Neutral detergent fiber; Number of bites; Rumination.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000800017
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Grazing ecology of female lambs on Italian ryegrass plus red clover pasture under different defoliation intensities R. Bras. Zootec.
Glienke,Carine Lisete; Rocha,Marta Gomes da; Camargo,Daniele Gindri; Pötter,Luciana; Confortin,Anna Carolina Cerato; Costa,Vagner Guasso da.
The relationship between pasture dynamics and ingestive behavior of female lambs was studied on Italian ryegrass (Lolium multiflorum Lam.) plus red clover (Trifolium pratense L.) mixture under a range of defoliation intensities. Rotational grazing was used and the grazing interval was determined by the thermal sum of 313 degree days. The initial pre-grazing canopy height disappearance values were 65 (very high), 58 (high), 47 (medium) and 37% (low). The sward vertical structure was similar among defoliation intensities. The forage allowance decreased linearly as defoliation intensities increased, with 0.35 bite/minute reduction for each 1% increase in forage allowance. The bite rate and number of bites/feeding station decreased with reduced contribution of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bite rate; Feeding stations; Ingestive behavior; Lolium multiflorum; Pasture structure; Trifolium pratense.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000100007
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Ingestive behavior and displacement patterns of beef heifers on Italian ryegrass pasture R. Bras. Zootec.
Glienke,Carine Lisete; Rocha,Marta Gomes da; Roso,Dalton; Pötter,Luciana; Costa,Vagner Guasso da; Machado,Juliana Medianeira.
The effect of supplementation on ingestive behavior and displacement patterns of beef heifers grazing on Italian ryegrass (Lolium multiflorum Lam.) pasture was evaluated. The grazing method was continuous with variable stocking rate. The experimental design was completely randomized with repeated measures on time. The supplement utilized was a commercial ration (17% CP, 21.4% NDF), daily supplied at 2 pm, in the proportion of 1% of body weight. The evaluations were made through visual observations, in four continuous periods of 24 hours. There was no difference in the bite rate between heifers with and without supplement and bite rate was higher at the end of the period of pasture utilization. Supplemented animals increased bite mass. The number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feeding stations; Grazing time; Lolium multiflorum; Supplementation.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000200003
Registros recuperados: 3
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