Modern feeding strategies for breeding boars

IF 2.2 2区农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Animal Reproduction Science Pub Date : 2024-10-01 DOI:10.1016/j.anireprosci.2024.107497

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引用次数: 0

Abstract

Feeding of breeding boars in artificial insemination (AI) centers is critical to maintaining and improving breeding quality and performance in agriculture. Modern feeding strategies for AI boars are aiming towards maximizing their lifetime semen dose output. Given the high growth potential of modern swine genetics, AI boars should be controlled in their daily gain to reduce stress factors for the locomotion system, final body weights, and improve their survivability but also the ease of handling boars. The feeding program should be designed in such a way that young boars (up to 7 months of age) are limited to a daily gain of 400–600 g. Mature boars should be fed towards a body condition score of ‘2’. Aside from energy intake, protein sources should provide 0.62% SID lysine. As far as minerals and vitamins, special attention should be given to Calcium and Phosphorus as they play a crucial role in bone mineralization. A standardized total tract digestible Calcium-Phosphorus ratio between 1.75:1 and 1.82:1 seems to be most favorable. While certain nutritional requirements are needed to enable the production of ejaculates eligible for AI, considerations should be given to the mitigation of risk factors like mycotoxins, herbicides, and pesticides. Most feed additives and supplements lack consistency in their effect across studies evaluated in this review.

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种公猪的现代饲养策略

人工授精（AI）中心种公猪的饲养对保持和提高农业育种质量和性能至关重要。人工授精公猪的现代饲养策略旨在最大限度地提高其一生的精液产量。鉴于现代猪遗传学的高生长潜力，应控制人工授精公猪的日增重，以减少对运动系统和最终体重的应激因素，提高公猪的存活率，同时也便于公猪的饲养管理。在设计饲喂计划时，年轻公猪（7 个月以下）的日增重应限制在 400-600 克。成年公猪的体重应达到 "2 "分。除能量摄入外，蛋白质来源应提供 0.62% SID 的赖氨酸。至于矿物质和维生素，应特别注意钙和磷，因为它们对骨骼矿化起着至关重要的作用。标准化总道可消化钙磷比在 1.75:1 到 1.82:1 之间似乎最为有利。虽然需要一定的营养要求才能生产出合格的人工授精精液，但也应考虑减少霉菌毒素、除草剂和杀虫剂等风险因素。在本综述评估的各项研究中，大多数饲料添加剂和补充剂的效果缺乏一致性。

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

Animal Reproduction Science 农林科学-奶制品与动物科学

CiteScore

4.50

自引率

9.10%

发文量

136

审稿时长

54 days

期刊介绍： Animal Reproduction Science publishes results from studies relating to reproduction and fertility in animals. This includes both fundamental research and applied studies, including management practices that increase our understanding of the biology and manipulation of reproduction. Manuscripts should go into depth in the mechanisms involved in the research reported, rather than a give a mere description of findings. The focus is on animals that are useful to humans including food- and fibre-producing; companion/recreational; captive; and endangered species including zoo animals, but excluding laboratory animals unless the results of the study provide new information that impacts the basic understanding of the biology or manipulation of reproduction. The journal''s scope includes the study of reproductive physiology and endocrinology, reproductive cycles, natural and artificial control of reproduction, preservation and use of gametes and embryos, pregnancy and parturition, infertility and sterility, diagnostic and therapeutic techniques. The Editorial Board of Animal Reproduction Science has decided not to publish papers in which there is an exclusive examination of the in vitro development of oocytes and embryos; however, there will be consideration of papers that include in vitro studies where the source of the oocytes and/or development of the embryos beyond the blastocyst stage is part of the experimental design.