Performance and carcass characteristics of lambs fed diets containing different types of carbohydrates associated with polyunsaturated fatty acids

Q3 Agricultural and Biological Sciences
R. Soares, R. Queiroga, R. Bessa, F. A. D. Sousa, B. Fernandes, A. P. Souza, A. Medeiros
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引用次数: 0

Abstract

This study aimed to evaluate the productive performance and carcass characteristics of lambs fed diets with different types of carbohydrates associated with polyunsaturated fatty acids. Thirty castrated male lambs (20.5 ± 7.6 kg) were used, distributed in a randomized block design under three experimental diets: High proportion of non-fibrous carbohydrates (NFC) diet; High NFC diet + spineless cactus (high proportion of NFC and spineless cactus) and Low NFC diet (low proportion of NFC), in a 60 day experimental period. The variables of nutrient intake, performance, and carcass characteristics were evaluated. The animals fed the High NFC + spineless cactus diet presented a higher dry matter intake, organic matter, mineral matter, crude protein, and total carbohydrates intake (p <0.05). Carcass characteristics and weight of commercial cuts were improved in High NFC and High NFC + spineless cactus diets (p <0.05), on the other hand we observed a total fat weight reduction in animals fed with High NFC + spineless cactus. The results indicate that high levels of NFC positively influence animal performance, where the type of carbohydrate influences nutrient intake, also affecting carcass characteristics.
饲粮中添加不同类型碳水化合物和多不饱和脂肪酸对羔羊生产性能和胴体特性的影响
本试验旨在评价饲粮中添加不同类型碳水化合物和多不饱和脂肪酸对羔羊生产性能和胴体特性的影响。选用30只阉割公羔羊(20.5±7.6 kg),采用随机区组设计,分别饲喂3种试验饲粮:高比例非纤维性碳水化合物(NFC)饲粮;高NFC饲粮+无刺仙人掌(高NFC和无刺仙人掌比例)和低NFC饲粮(低NFC比例),试验期60 d。评估了营养摄入、生产性能和胴体特性等变量。高NFC +无刺仙人掌饲粮的干物质采食量、有机物、矿物质、粗蛋白质和总碳水化合物采食量显著高于对照组(p <0.05)。高NFC和高NFC +无刺仙人掌饲粮改善了商业肉片的胴体特性和重量(p <0.05),另一方面,我们观察到高NFC +无刺仙人掌饲粮降低了动物的总脂肪重。结果表明,高水平的NFC对动物生产性能有积极影响,其中碳水化合物类型影响营养摄入量,也影响胴体特性。
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来源期刊
Acta Scientiarum. Animal Sciences
Acta Scientiarum. Animal Sciences Agricultural and Biological Sciences-Food Science
CiteScore
1.60
自引率
0.00%
发文量
45
审稿时长
9 weeks
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