Effects of type of tropical pasture and concentrate supplementation level on the carcass traits of grazing lambs
| Autor: | Gustavo Daniel Vega Britez, Tatiane Fernandes, Luana Liz Medina Ledesma, Marcelo Corrêa da Silva, M. Retore, Jessica de Oliveira Monteschio, Fernando Miranda de Vargas Junior, Adrielly Lais Alves da Silva |
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| Přispěvatelé: | GUSTAVO DANIEL VEGA BRITEZ, UNIVERSIDAD NACIONAL DE ASUNCIÓN FILIAL PEDRO JUAN CABALLERO, PEDRO JUAN CABALLERO, PARAGUAY, FERNANDO MIRANDA VARGAS JUNIOR, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS, MARCIANA RETORE, CPAO, MARCELO CORRÊA SILVA, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS, LUANA LIZ MEDINA LEDESMA, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS, ADRIELLY LAIS ALVES SILVA, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS, JÉSSICA OLIVEIRA MONTESCHIO, UNIVERSIDADE FEDERAL DE RORAIMA, BOA VISTA, RR, TATIANE FERNANDES, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Cultural Studies
Cordeiro Fat content animal diseases Body weight Carcaça Pasture Carne lcsh:Agriculture Animal science Carcass weight Grazing lcsh:Zoology Original Study lcsh:QL1-991 lcsh:Science lcsh:SF1-1100 geography geography.geographical_feature_category biology 0402 animal and dairy science Religious studies lcsh:S food and beverages 04 agricultural and veterinary sciences biology.organism_classification 040201 dairy & animal science Brachiaria Factorial experimental design Nutrição Animal 040103 agronomy & agriculture 0401 agriculture forestry and fisheries lcsh:Q lcsh:Animal culture Panicum |
| Zdroj: | Archives Animal Breeding, Vol 63, Pp 283-291 (2020) Archives Animal Breeding Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| ISSN: | 2363-9822 0003-9438 |
| Popis: | The nutritional requirements can be met, and carcass quality can be achieved by using concentrate supplementation in the diets of grazing lambs. This study evaluated the effects of different concentrate supplementation rates (0 %, 1.5 %, and 3 % of body weight) and tropical pastures (Panicum maximum cv. `Aruana' and Brachiaria brizantha cv. `Marandu') on lamb carcass traits. Thirty-six male Suffolk lambs, with an initial body weight of 22.54 ± 2.72 kg, were evaluated in a 3 × 2 factorial experimental design. The concentrate used consisted of milled soybean, maize, and oat grains. The pasture species affected empty body weight and commercial cuts. The use of concentrate supplementation affected carcass weight, yield, indexes, and commercial cuts. Also, the use of concentrate supplementation improved the weight of muscle and fat content. Based on discriminant analysis it is possible to identify the rearing systems, when all variables where used, or the level of concentrate supplementation when variables of weight were used. Carcasses of animals on grass-only diets were different and easier to discriminate. The use of concentrate supplementation on rearing lambs improves the quality of carcass traits. The period of finishing can be shorted with supplementation of 3 % of body weigh in Aruana and Marandu grass. The discriminant analysis can identify the differences between rearing systems based on all carcass traits. This analysis can be used to develop carcass traceability systems. |
| Databáze: | OpenAIRE |
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