Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Innovative Institute of Animal Healthy Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, Guangdong, China.
Res Vet Sci. 2023 Dec;165:105051. doi: 10.1016/j.rvsc.2023.105051. Epub 2023 Oct 13.
Pigeons like to eat raw grains, but meat pigeon enterprises often use compound feeds instead of raw grains to feed breeding pigeons to increase economic efficiency, which may change the pigeon's dietary behavior, and consequently lead to health and welfare problems. The purpose of this study was to investigate the effect of granular feeds on the health of high-yielding breeding pigeons and squabs in lactation. The results showed that, compared with raw grain group, the provision of granular feed resulted in lower total feed intake without affecting the weight of lactating breeding pigeons. Meanwhile, reproductive metabolism was improved and no oxidative stress was observed, which indicated that granular feeds had a positive effect on breeding pigeon's health. However, granular feed adversely affected jejunum development in squabs, compare wtih raw grain group, the growth rate of squab was reduced. Sequencing of the 16 s rRNA gene revealed that granular feed induced intestinal microbiota dysbiosis in the squabs. The use of granular feed reduced the relative abundance of gut microorganisms in functional categories related to lipid and energy metabolism, resulting in a decrease in the relative abundance of beneficial bacteria such as Bifidobacterium, Ligilactobacillus, Atopobium, and an increase in that of inflammation-related Limosilactobacillus, which likely inhibited squab intestinal development and growth. Although the use of granular feed can improve breeder metabolism, it affect the composition of the microbial community and gut development of squabs. Therefore, the use of granular feed in production should be more careful to avoid causing growth obstruction of squab.
鸽子喜欢吃原粮，但肉鸽企业往往用配合饲料代替原粮来饲养种鸽以提高经济效益，这可能会改变鸽子的采食行为，进而导致健康和福利问题。本研究旨在探讨颗粒饲料对哺乳期高产种鸽和乳鸽的健康影响。结果表明，与原粮组相比，提供颗粒饲料会导致总采食量降低，但不影响哺乳期种鸽的体重。同时，改善了生殖代谢，未观察到氧化应激，这表明颗粒饲料对种鸽的健康有积极作用。然而，颗粒饲料对乳鸽的空肠发育有不良影响，与原粮组相比，乳鸽的生长速度降低。16s rRNA 基因测序结果显示，颗粒饲料会引起乳鸽肠道微生物群落失调。颗粒饲料的使用降低了与脂质和能量代谢相关功能类群中肠道微生物的相对丰度，导致双歧杆菌、乳酸杆菌、阿托波氏菌等有益菌的相对丰度降低，而与炎症相关的栖粪杆菌的相对丰度增加，这可能抑制了乳鸽的肠道发育和生长。虽然颗粒饲料的使用可以改善种鸽的代谢，但会影响乳鸽肠道微生物群落组成和肠道发育。因此，在生产中使用颗粒饲料时应更加小心，以避免导致乳鸽生长受阻。
