Performance, carcass quality and meat from feedlot lambs fed sorghum whole soybean plant

• Grant number: 14/00772-6
• Support Opportunities: Scholarships in Brazil - Master
• Start date: January 01, 2015
• End date: June 30, 2015
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Pastures and Forage Crops
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Ciniro Costa
• Grantee: Verena Micheletti Protes
• Host Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

At many regions of the world, reducing costs for the recovery of degraded areas and the intensive use throughout the year are being made possible by crop-livestock integration under no tillage. In this system has been used more corn and soybeans in intercrop with forage, generating large socio-economic and environmental positive impact. Recently, the use of soybean silage has proved an interesting alternative for the production of bulky and in some production systems, especially those in which the protein of the diet is high demand. The present study is to evaluate the use of whole plant silage soy in the diet for finishing lambs. The experimental design is completely randomized, with treatments consisting of a control diet and a diet with the use of whole plant silage soy. For economic evaluation of the system will be assessed the nutritional status and the fraction of grains of soybean plants at the time of ensiling, the chemical composition of silage, soybeans, forage yield and chemical composition of aruanagrass in autumn season. Be used 24 crossed lambs with mean weight of 20 kg and 2 months old, derived from a commercial breeding and kept confined for 70 days (14 d of adaptation and 56 d of data collection) in individual stalls covered (1.73 x 1.73 m). Will be evaluated performance, feed intake, feed conversion, economic performance, carcass characteristics and meat quality. The animals will be slaughtered around 32 kg bodyweight for assessment of carcass conformation and finish. Operating costs of the treatments will be estimated from the technical coefficients (inputs and operations), extrapolated to one hectare, their input costs and operations will generate operating cost. The gain in live weight (kg / ha) obtained in each treatment will be used in obtaining the recipe for economic evaluation. The data will be analyzed with the MIXED procedures of SAS (SAS Institute Inc., Cary, NC, USA) were subjected to analysis of variance and comparison of means by Student Newman Keuls test at 5% probability. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PROTES, V. M.; COSTA, C.; PARIZ, C. M.; CASTILHOS, A. M.; MEIRELLES, P. R. L.; LONGHINI, V. Z.; ROCA, R. O.; RICARDO, H. A.; MELO, V. F. P.. Effects of soybean silage on feeding behavior, performance, and meat quality of lambs. Small Ruminant Research, v. 164, p. 64-69, JUL 2018. (14/00772-6)