| Registro completo |
| Provedor de dados: |
R. Bras. Zootec.
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| País: |
Brazil
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| Título: |
Production parameters and forage loss of oat and rye grass pastures managed with beef heifers fed diets with energy supplementation
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| Autores: |
Pizzuti,Luiz Angelo Damian
Alves Filho,Dari Celestino
Brondani,Ivan Luiz
Freitas,Leandro da Silva
Metz,Patrícia Alessandra Meneguzzi
Callegaro,Álisson Marian
Pacheco,Rangel Fernandes
Pereira,Lucas Braido
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| Data: |
2012-08-01
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| Ano: |
2012
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| Palavras-chave: |
Crude protein
Forage loss
Forage mass
Intake
Leaf blade offer
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| Resumo: |
Production parameters of intercropped pastures of oat and rye grass managed with beef heifers supplemented with brown rice meal and/or protected fat were evaluated. Twenty-eight Charolais × Nellore crossbred heifers at initial average age of 18 months and initial average live weight of 274.9 kg were utilized in the experiment. Animals were kept on oat + rye grass pastures and distributed in the following treatments: no-supplementation (NS): heifers kept only in pastures; Megalac (MEG): supplementation with protected fat; brown rice meal (BRM): supplementation with BRM; BRM + MEG: supplementation with BRM plus protected fat. The greater participation of oat leaf was from July 5th to August 10th, 2009 and of rye grass, from August 30th to September 26th, 2009. The crude protein content increased until the 55th day (225.1 g/kg). Pasture total digestible nutrients presented a cubic behavior, with an average of 722.0 g/kg. The highest supply of leaf blades, 5.17 kg of dry matter/100 kg of live weight, was found in the second period. Pasture intake increased throughout the periods. Forage mass and support capacity of the animal did not differ between treatments, presenting means of 1245.02 kg of dry matter/ha and 882 kg of live weight/ha, respectively. Stoking rate, forage loss and pasture intake were not affected by the treatments. Supplementation of beef heifers with rice meal and/or protected fat did not change production parameters of oat + rye grass pastures or pasture intake. Increase in daily accumulation rate of dry matter and supporting capacity of the animals increases forage losses.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000800018
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| Editor: |
Sociedade Brasileira de Zootecnia
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| Relação: |
10.1590/S1516-35982012000800018
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Zootecnia v.41 n.8 2012
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| Direitos: |
info:eu-repo/semantics/openAccess
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