Performance, nutrient digestibility, and quantitative carcass traits of lambs fed sunflower seeds and vitamin E
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Published:2016-08-30
Issue:4
Volume:37
Page:2133
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ISSN:1679-0359
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Container-title:Semina: Ciências Agrárias
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language:
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Short-container-title:SCA
Author:
Almeida Fabiana Alves de,Silva Sobrinho Américo Garcia da,Manzi Gabriela Milani,Lima Natália Ludmila Lins,Sales Ronaldo Oliveira,Zeola Nivea Maria Brancacci Lopes,Endo Viviane,Borghi Thiago Henrique
Abstract
The aim of this study was to evaluate performance, nutrient digestibility, and carcass quantitative traits of lambs fed diets with and without sunflower seeds and vitamin E. Thirty-two uncastrated lambs at approximately 60 days of age, with 15 ± 0.2 kg, were housed in individual stalls and slaughtered at 32.0 ± 0.2 kg body weight. Treatments consisted of the following four diets: C = sugarcane + concentrate; CS = sugarcane + concentrate with sunflower seeds; CE = sugarcane + concentrate with 1,000 mg vitamin E kg-1 diet dry matter (DM); and CSE = sugarcane + concentrate with sunflower seeds and 1,000 mg vitamin E kg-1 diet DM. The experimental design was completely randomized, in a 2 × 2 factorial arrangement (with and without sunflower seeds and with or without vitamin E, on the diet DM basis), and means were compared by Tukey’s test at 5% significance level. Consumption of vitamin E intake by the lambs provided (P < 0.05) the highest ether extract intake (20.91 g day-1) and consequently the highest (P < 0.05) digestibility of this nutrient (85.34%); however, it reduced (P < 0.05) the intakes of total carbohydrates (394.81 g day-1) and non-fibrous carbohydrates (242.47 g day-1) as a direct consequence of the diet composition. Inclusion of sunflower seeds and vitamin E in the lamb diets did not influence (P > 0.05) carcass morphological or quantitative measurements. Sunflower seeds and vitamin E showed to be satisfactory alternatives for inclusion in the concentrate for feedlot lambs, providing good performance and quality carcasses.
Publisher
Universidade Estadual de Londrina
Subject
General Agricultural and Biological Sciences
Cited by
2 articles.
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