Characteristics of carcass and of non-carcass components of lambs and hoggets fed high-concentrate corn or sorghum diets

Rafael Sanches Venturini,Sérgio Carvalho,Robson Rodrigues Simões,Andressa Ana Martins,Paulo Santana Pacheco,Jusecléia Ferreira Lopes,Anderson Bortoluzzi Moro,Ana Carolina Ribeiro Sanquetta De Pellegrin

doi:10.1590/s1806-92902017000300011

Rafael Sanches Venturini, Sérgio Carvalho + Show 6 more

Open Access

https://doi.org/10.1590/s1806-92902017000300011

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Abstract

ABSTRACT The objective of this study was to evaluate the characteristics of carcass and non-carcass components of lambs and hoggets finished in the feedlot with high-concentrate corn or sorghum grain-based diets. Thirty-two animals were finished, comprising 16 lambs (milk teeth) and 16 hoggets (two teeth), which were distributed in a completely randomized design in a 2 × 2 factorial arrangement (two sheep categories × two grains). For the variables final live weight, live weight at slaughter, hot carcass weight, cold [...]

Highlights

The sheep farming market underwent great changes in the last decades, shifting from a basically wool-exploiting activity to the meat segment
Hot and cold carcass yields, meat subjective color, and percentage of ribs are higher in feedlot-finished lambs and hoggets fed high-concentrate sorghum-based diets compared with those fed corn-based diets
There was a significant difference between the categories analyzed (P

Summary

Introduction

The sheep farming market underwent great changes in the last decades, shifting from a basically wool-exploiting activity to the meat segment. The adopted finishing systems must meet the demands of two important links of the sheep production chain: producers and consumers On this topic, Rodrigues et al (2008) commented that the feedlot is an attractive feeding strategy that reduces the production cycle and provides the market with high-quality lamb. One of the many possible food alternatives to be used in a feedlot system is diets with a large participation of concentrate, which are manageable and provide greater operability to the system This is because these diets carry the advantage of not requiring much time on labor with the removal and supply of roughage feeds, which reflects in lower investments in machinery and equipment. These diets pose fewer risks, which might be triggered by possible climatic influences on the production and production of roughage feeds, thereby providing a more guaranteed planning of the activity

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