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Ileal Digestibility and Total Tract Retention of Phosphorus in Inorganic Phosphates Fed to Broiler Chickens Using the Direct Method.采用直接法测定饲喂肉鸡的无机磷酸盐中磷的回肠消化率和全肠道存留率
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Evaluation of the standardized ileal digestibility of amino acids of rapeseed meals varying in protein solubility for Pekin ducks.评价不同蛋白溶解度菜籽粕的标准化回肠氨基酸消化率对北京鸭的影响。
Poult Sci. 2020 Feb;99(2):1001-1009. doi: 10.1016/j.psj.2019.10.012. Epub 2019 Dec 10.
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Dietary phosphorus deficiency impaired growth, intestinal digestion and absorption function of meat ducks.日粮磷缺乏会损害肉鸭的生长、肠道消化及吸收功能。
Asian-Australas J Anim Sci. 2019 Dec 1;32(12):1897-1906. doi: 10.5713/ajas.18.0683. Epub 2019 Apr 15.
4
Effect of dietary fiber levels on performance, gizzard development, intestinal morphology, and nutrient utilization in meat ducks from 1 to 21 days of age.饲粮纤维水平对 1~21 日龄肉鸭生产性能、肌胃发育、肠道形态和养分利用率的影响。
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5
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Br Poult Sci. 2016 Dec;57(6):810-817. doi: 10.1080/00071668.2016.1222604. Epub 2016 Nov 14.
6
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评价饲用磷酸盐在肉鸡和北京鸭中的回肠磷消化率和磷排泄留存率。

Evaluation of the ileal digestibility and excreta retention of phosphorus for feed phosphates in broiler chickens and in Pekin ducks.

机构信息

Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, China.

Department of Poultry Science, University of Georgia, GA, 30602, USA.

出版信息

Poult Sci. 2022 Jul;101(7):101837. doi: 10.1016/j.psj.2022.101837. Epub 2022 Mar 10.

DOI:10.1016/j.psj.2022.101837
PMID:35544957
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9118143/
Abstract

The study aimed to determine the ileal phosphorus (P) digestibility (iPD) and the excreta P retention (ePR) of 5 monodicalcium phosphate (MCP) samples and 3 dicalcium phosphate (DCP) samples in broiler chickens and in Pekin ducks using the substitution method. A total of 720, 21-d-old Arbor Acres broiler chickens in experiment 1 and 720, 15-d-old Pekin ducks in experiment 2 were randomly allocated to 9 dietary treatments with 8 replicate cages (10 birds/cage) based on the similar mean body weight, respectively. The collection of excreta (for 72 h after a 3-d acclimation) and ileal digesta (after 6 d of feeding experimental diets) was done. The results showed the average iPD/ePR of MCP and DCP for broilers were 83.11%/74.52% and 75.34%/69.46% and for ducks were 79.37%/80.02% and 75.74%/76.44%, respectively. The iPD/ePR of MCP in broilers and the ePR of MCP in ducks were markedly higher (P < 0.05) than those of DCP. Our data suggest that using the substitution method to evaluate the bioavailability of feed phosphates has its own advantages; MCP has higher biological availability than DCP for broilers and ducks.

摘要

本研究旨在采用替代法测定 5 种单磷酸钙（MCP）和 3 种二磷酸钙（DCP）在肉鸡和北京鸭体内的回肠磷消化率（iPD）和粪便磷保留率（ePR）。试验 1 中，选用 720 只 21 日龄的爱拔益加肉鸡，试验 2 中选用 720 只 15 日龄的北京鸭，根据相似的平均体重，分别随机分配到 9 种饲粮处理组，每组 8 个重复，每个重复 10 只鸡/笼。收集粪便（适应期 3d 后收集 72h）和回肠食糜（饲喂试验饲粮 6d 后收集）。结果表明，肉鸡的 MCP 和 DCP 的平均 iPD/ePR 分别为 83.11%/74.52%和 75.34%/69.46%，鸭的 MCP 和 DCP 的平均 iPD/ePR 分别为 79.37%/80.02%和 75.74%/76.44%。肉鸡的 MCP 的 iPD/ePR 和鸭的 MCP 的 ePR 显著高于 DCP（P＜0.05）。本研究数据表明，采用替代法评估饲料磷的生物学效价具有自身优势；MCP 对肉鸡和鸭的生物学效价均高于 DCP。