剩余采食量:家禽育种计划中选择的一个限制性经济因素

IF 3.5 2区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY Annals of Agricultural Science Pub Date : 2021-06-01 DOI:10.1016/j.aoas.2021.03.001
M.M. Fathi , A. Galal , I. Al-Homidan , O.K. Abou-Emera , G.N. Rayan
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引用次数: 8

摘要

最近的牲畜和家禽育种项目旨在使生产力最大化和总成本最小化。众所周知,进料是影响生产过程的主要可变因素。动物的需求可分为维护需求和生产需求。因此,最近的育种计划旨在通过遗传改良剩余采食量(RFI)来降低生产成本。如果一只鸟的饲料消耗量低于预期的生产和保存要求,则其剩余采食量为负(- RFI)。这种情况对于降低动物和家禽项目的饲料成本是可取的。预测采食量(PFI) (R−)较低的鸡需要较少的饲料来达到相似的体重和生产性能。另一方面,吃比预期更多饲料的鸟有一个积极的RFI。因此,育种者必须通过有效的选择程序来避免后一种鸟类(+RFI)。
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Residual feed intake: A limiting economic factor for selection in poultry breeding programs

The recent breeding programs for livestock and poultry projects have aimed at maximizing productivity and minimizing gross costs. It is well known that feed represents the main variable component affecting the productive process. The animal's requirements can be divided into needs for maintenance and productive requests. Consequently, recent breeding programs have aimed at reducing production costs through genetic improvements in residual feed intake (RFI). A bird that consumes less feed than expected for production and preservation requirements has a negative residual feed intake (−RFI). This case is desirable for decreasing feed costs in animal and poultry projects. Chickens with low predicted feed intake (PFI) (R−) need less feed to reach a similar body weight and production performance. On the other hand, birds that eat more feed than expected have a positive RFI. Accordingly, the latter birds (+RFI) must be avoided by breeders via effective selection programs.

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来源期刊
Annals of Agricultural Science
Annals of Agricultural Science AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
12.60
自引率
0.00%
发文量
18
审稿时长
33 days
期刊介绍: Annals of Agricultural Sciences (AOAS) is the official journal of Faculty of Agriculture, Ain Shams University. AOAS is an open access peer-reviewed journal publishing original research articles and review articles on experimental and modelling research at laboratory, field, farm, landscape, and industrial levels. AOAS aims to maximize the quality of the agricultural sector across the globe with emphasis on the Arabian countries by focusing on publishing the high-quality applicable researches, in addition to the new methods and frontiers leading to maximizing the quality and quantity of both plant and animal yield and final products.
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