向日葵饼在轻量蛋鸡饲粮中:对生长阶段和生产周期开始的影响

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY
D. H. Souza, T. R. Gomes, R. Nepomuceno, A. Alencar, Monik Kelly de Oliveira Costa, E. R. Freitas
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引用次数: 1

摘要

向日葵饼(SC)在动物饲料中的应用已被研究,主要是因为其特性,因为将这种副产品添加到饲料中可以提高饲料的经济可行性和营养价值。本试验旨在评价葵花饼在轻量蛋鸡饲粮中的添加情况,并从饲粮、生产性能、体组成、营养物质保留、生长期能量代谢、产蛋性能、性成熟和产蛋初期蛋品质等方面考察其营养物质消化率和代谢能。本研究共分配648只小母鸡,采用完全随机设计,包括6个处理,6个重复,每个重复18只小母鸡。试验结果表明,饲粮中添加0、5、10、15、20和25% SC对18 ~ 35周龄蛋鸡体成分、营养物质潴存、能量代谢、性成熟、产蛋性能和蛋品质均有显著影响(P0.05)。因此,由于在产蛋初期对产蛋鸡的生产性能没有残留影响,在产蛋鸡生长阶段饲粮中可添加高达25%的SC。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sunflower cake in the diets of lightweight laying pullets: Effects on the growth phase and the beginning of production cycle
ABSTRACT The use of sunflower cake (SC) in animal feed has been studied mainly due to the characteristics that are given to them, since this by-product when incorporated in the feed can increase the economic viability and the nutritional value of the diet. The objective of this study was to evaluate the inclusion of sunflower cake in lightweight pullet diets and check their nutrient digestibility and metabolizable energy for several parameters, including diet, performance, body composition, nutrient retention, energy metabolism at the growth phase, performance of egg production, sexual maturity, and egg quality at the beginning of the laying phase. We distributed a total of 648 pullets in our study, which was a completely randomized design including six treatments with six replicates of 18 pullets each. The treatments included diets with 0, 5, 10, 15, 20, and 25% SC. Our study results concluded that pullets fed with diets containing SC showed a reduction (P<0.01) in nutrient digestibility and metabolizable energy compared to those fed with the control diet. Pullets fed with 25% SC showed an increase (P<0.01) in feed intake and feed conversion ratio. However, dietary inclusion of SC in pullet diets did not influence (P>0.05) their body composition, nutrient retention, energy metabolism, sexual maturity, egg-laying performance, and egg quality of laying hens between 18 and 35 weeks of their age. Therefore, up to 25% of SC could be included in the diet of lightweight laying pullets in the growth phase since it exhibited no residual effect on their productive performance at the beginning of the laying phase.
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来源期刊
Ciencia E Agrotecnologia
Ciencia E Agrotecnologia 农林科学-农业综合
CiteScore
2.30
自引率
9.10%
发文量
19
审稿时长
6-12 weeks
期刊介绍: A Ciência e Agrotecnologia, editada a cada 2 meses pela Editora da Universidade Federal de Lavras (UFLA), publica artigos científicos de interesse agropecuário elaborados por membros da comunidade científica nacional e internacional. A revista é distribuída em âmbito nacional e internacional para bibliotecas de Faculdades, Universidades e Instituições de Pesquisa.
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