Lamb production responses to grass grazing in a companion crop system with corn silage and oversowing of yellow oat in a tropical region

Autor(es):Mostrar menos -

Pariz, Cristiano M. ^[1] ; Costa, Ciniro ^[1] ; Crusciol, Carlos A. C. ^[2] ; Castilhos, Andre M. ^[1] ; Meirelles, Paulo R. L. ^[1] ; Roca, Roberto O. ^[3] ; Pinheiro, Rafael S. B. ^[4] ; Kuwahara, Frank A. ^[5] ; Martello, Jorge M. ^[2] ; Cavasano, Francielli A. ^[1] ; Yasuoka, Junior I. ^[6] ; Sarto, Jaqueline R. W. ^[1] ; Melo, Veronica F. P. ^[1] ; Franzluebbers, Alan J. ^[7]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, UNESP, Coll Vet Med & Anim Sci, Dept Anim Nutr & Breeding, Botucatu, SP - Brazil

^[2] UNESP, Coll Agr Sci, Dept Crop Sci, Botucatu, SP - Brazil

^[3] UNESP, Coll Agr Sci, Dept Econ Sociol & Technol, Botucatu, SP - Brazil

^[4] UNESP, Coll Engn, Dept Biol & Anim Sci, Ilha Solteira, SP - Brazil

^[5] Univ West Sao Paulo UNOESTE, Presidente Prudente, SP - Brazil

^[6] Univ Sao Paulo, Coll Agr, Piracicaba, SP - Brazil

^[7] North Carolina State Univ, USDA ARS, 3218 Williams Hall, Campus Box 7619, Raleigh, NC 27695 - USA

• Tipo de documento: Artigo Científico
• Fonte: AGRICULTURAL SYSTEMS; v. 151, p. 1-11, FEB 2017.
• Citações Web of Science: 7

Resumo

Integrated crop-livestock systems in regions with dry winters could be a viable option to increase food production during periods of irregular rain and reduced pasture availability. A corn (Zea mays L.) silage production system with cover crops of (a) the weedy growth of signal grass {[}Urochloa decumbens (Stapf) R. Webster ``Basilisk{''}] and (b) palisade grass {[}Urochloa brizantha (Hochst. ex A. Rich.) R. Webster `Marandu' and `Natal both with a 020- and 0.45-m silage cutting height, was employed in the summer and autumn. Yellow oat (Avena byzantina cv. Sao Carlos) was oversown in these systems in the winter and spring. The pasture production, the daily ration intake, the performance and carcass characteristics of lambs (Ovis aries) grazing these pastures in a semi-feedlot system (supplemented with silage and concentrate), and the revenue were investigated. The experiment was repeated in the same location for two growing seasons (2010-2011 and 2011-2012) on a Typic Haplorthox in Botucatu, Sao Paulo, Brazil. Analyzing the system as a whole, intercropping corn silage with palisade grass cv. Marandu (followed by palisade grass cv. Plata) with a cutting height of 0.45 m combined with yellow oat oversowing was the most robust option for enhancing productivity. The pasture formation for lamb finishing in a semi-feedlot system, the reduction of silage and concentrate intake, and greater live weight and carcass gains per hectare were key attributes for improving the economic viability of this integrated crop -livestock system. Thus, these crop systems were a viable option for the diversification of agricultural activities in tropical regions. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 12/04458-9 - Comportamento ingestivo e desempenho de cordeiros suplementados com silagem de milho em sistema de integração lavoura-pecuária
• Beneficiário: Júnior Issamu Yasuoka
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 11/03662-9 - Características da pastagem, comportamento ingestivo e avaliações da carcaça de cordeiros terminados em sistema de integração lavoura-pecuária suplementados com silagem de milho
• Beneficiário: Francielli Aparecida Cavasano
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 11/12155-3 - Consórcio de milho com cultivares de Brachiaria brizantha para silagem e sobressemeadura de aveia na produção de cordeiros em sistema de integração lavoura-pecuária
• Beneficiário: Ciniro Costa
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/12992-0 - Desempenhos técnicos e econômicos da altura de colheita do milho para silagem em consórcio com cultivares de Brachiaria brizantha e sobressemeadura de aveia na produção de ovinos
• Beneficiário: Cristiano Magalhães Pariz
• Modalidade de apoio: Bolsas no Brasil - Doutorado