Organic minerals, tributyrin, and blend of organic acids in the diet of commercial laying hens at the end of production

IF 0.7 4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE
D. A. Miranda, L. Moreira, Á. A. de Almeida, J. A. Vieira-Filho, L. C. M, J. K. Valentim, H. Oliveira, A. Geraldo
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引用次数: 0

Abstract

This study aimed to evaluate the responses in performance, egg quality, and health of internal organs of laying hens of Hisex White lineage. The birds were provided with diets supplemented with organic minerals (OM) + tributyrin, associated or not with a mixture of organic acids (benzoic formic, citric, and phosphoric), compared to a control treatment containing zinc bacitracin (28 ppm). In total, 160 laying hens of the commercial Hisex White lineage of 68 w and an average weight of 1.735 ± 0.025 kg were distributed in 40 experimental plots. The study employed a completely randomized design, with five treatments and eight replications/treatment. The experimental period was divided into seven production cycles of 21 days, totalling 147 experimental days. The variables analysed were egg production and loss, feed intake, mean egg weight, egg mass, feed conversion, and internal and external quality variables of eggs. At the end of the experimental period, the final weight of the birds was measured to evaluate the relative weight of liver and kidneys. No significant effect of the treatments on the productive performance and internal and external quality of the eggs was evident. The association of organic minerals with a mixture of organic acids and tributyrin did not influence the productive performance and internal and external quality of the shell of Hisex White laying hens in the period from 68 to 89 weeks of age.
商品蛋鸡生产后期日粮中的有机矿物质、三丁酸酯和有机酸混合物
本试验旨在评价对海胜白系蛋鸡生产性能、蛋品质和内脏健康的影响。与含有杆菌肽锌(28 ppm)的对照处理相比,在饲粮中添加有机矿物质(OM) +三丁酸酯,并与有机酸(苯甲酸、柠檬酸和磷酸)的混合物相关或不相关。选取160只平均体重为1.735±0.025 kg、68 w的海思白商品系蛋鸡,分布在40个试验区。该研究采用完全随机设计,5个治疗和8个重复/治疗。试验期分为7个生产周期,每周期21 d,共147 d。分析的变量包括产蛋量和损失、采食量、平均蛋重、蛋质量、饲料转化率以及蛋的内外品质变量。在试验期结束时,测量鸡的最终体重,评估肝脏和肾脏的相对重量。各处理对蛋的生产性能和内外品质均无显著影响。有机矿物质与有机酸和三丁酸酯混合物的结合对68 ~ 89周龄海塞白蛋鸡的生产性能和蛋壳内外品质没有影响。
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来源期刊
South African Journal of Animal Science
South African Journal of Animal Science 农林科学-奶制品与动物科学
CiteScore
1.50
自引率
0.00%
发文量
39
审稿时长
>36 weeks
期刊介绍: The South African Journal of Animal Science is an open access, peer-reviewed journal for publication of original scientific articles and reviews in the field of animal science. The journal publishes reports of research dealing with production of farmed animal species (cattle, sheep, goats, pigs, horses, poultry and ostriches), as well as pertinent aspects of research on aquatic and wildlife species. Disciplines covered nutrition, genetics, physiology, and production systems. Systematic research on animal products, behaviour, and welfare are also invited. Rigorous testing of well-specified hypotheses is expected.
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