The proportion of fine particles in pelleted diets does not affect performance of slow-growing broiler chicks

IF 0.2 4区农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Revista Colombiana De Ciencias Pecuarias Pub Date : 2020-07-22 DOI:10.17533/udea.rccp.v34n2a01

Fabiana Ramos-Santos, Deibity Alves-Cordeiro, Hyalo Batista-Santos, Nayanne Rodrigues-Oliveira, M. Sousa-Silva, Cibele Silva-Minafra, Júlia-Marixara Sousa-Silva

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引用次数: 0

Abstract

Background: The slow-growing chicken strains have particular nutritional and digestive needs, so they may digest pelleted feeds differently compared to commercial strains. Objective: To evaluate performance, digestibility, serum biochemical profile, digestive morphometry, carcass and cut yields of slow-growing broiler chickens fed pelleted feed with different concentrations of fine particles. Methods: A total of 180 slow-growing broiler chicks (Isa Label strain) aged one day were used. The animals were distributed in a completely randomized design with a 2 x 3 factorial scheme (Sex: male or female; Proportion of fine particles: 0, 50, or 100%), with six repetitions of five birds/cage. The birds received water and feed ad libitum during the 28-day experimental period. Results: The proportion of fine particles did not affect the metabolic, digestive or productive variables evaluated. Males showed better overall performance, while females produced better thigh and liver yields. Conclusion: The proportion of fine particles in pelleted feeds did not affect productive or metabolic parameters. Thus, improving pellet quality for slow-growing broilers during the initial rearing phase may not be justified.

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颗粒化饲粮中细颗粒比例对慢生长肉鸡生产性能无影响

背景：生长缓慢的鸡品系具有特殊的营养和消化需求，因此与商业品系相比，它们对颗粒饲料的消化可能不同。目的：评价不同浓度细颗粒颗粒饲料对生长缓慢肉鸡的生产性能、消化率、血清生化特性、消化形态测定、胴体和切块产量的影响。方法：选用180只一日龄肉鸡（Isa-Label品系）。动物以完全随机的设计进行分配，采用2 x 3析因方案（性别：雄性或雌性；细颗粒比例：0、50或100%），每笼重复6次，每次5只鸟。在28天的实验期间，这些鸟随意饮水和进食。结果：细颗粒的比例不会影响评估的代谢、消化或生产变量。雄性表现出更好的整体表现，而雌性的大腿和肝脏产量更好。结论：颗粒饲料中细颗粒的比例不影响生产和代谢参数。因此，在初始饲养阶段提高生长缓慢的肉鸡的颗粒质量可能是不合理的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Colombiana De Ciencias Pecuarias AGRICULTURE, DAIRY & ANIMAL SCIENCE-

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The editors of Revista Colombiana de Ciencias Pecuarias (RCCP) welcome the submission of original manuscripts on experimental and clinical studies associated with the broad areas of animal sciences and veterinary medicine as they interface with biochemistry, molecular biology, physiology, pharmacology, toxicology, pathology, microbiology, parasitology, immunology and epidemiology. The scope of the journal includes studies of basic and applied research in animal management and production, feeding and nutrition, reproduction, breeding, genetics, animal welfare and behavior; as well as animal production focussed from biotechnology, soil science, agrostology, silvopastoral systems, livestock economics and the environment. The criteria for acceptance of papers submitted for publication are originality, quality and clarity of the content. Each contribution must be based on original, unpublished research that has not been simultaneously submitted to other journals. All papers will be peer reviewed. All authors bear responsibility for ensuring the integrity and quality of their reported research. It is the author''s responsibility to secure permission to use figures or tables that have been published elsewhere. Contributions may be classified as original research, review, rapid communication, clinical case studies or methodological articles, as well as news/commentaries or letters to the editor. Most review articles are invited by the editor. Authors interested in submitting a review article should contact the corresponding editor. Rapid publication of original manuscripts is a goal of the journal. Manuscripts must be written in English. Each manuscript is considered for publication with the understanding that it has not been simultaneously submitted to any other journal. Upon acceptance for publication, papers are subject to editorial review and revision.