Energy digestibility in broilers and poult performance when fed palm or soybean oil with or without glyceryl monolaurate.

IF 3.8 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Poultry Science Pub Date : 2024-10-28 DOI:10.1016/j.psj.2024.104442
Brian J Kerr, Sarah C Pearce, Chad R Risley, Brooke A Wilson, Dawn A Koltes
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Abstract

Two trials were conducted to determine interactive effects between lipid source (palm oil, PO versus soybean oil, SO) and emulsifier addition (none versus glycerol monolaurate-GML) on apparent total tract digestibility (ATTD) of gross energy (GE) in broilers and growth performance in poults. In trial 1, 0.05 % GML addition had no impact on the ATTD of GE of SO but improved the ATTD of PO from 77.11 % to 88.21 % (interaction, P=0.03). Without GML addition, PO had a lower ATTD of GE (77.11 %) compared to SO (96.48 %) resulting in an AME of 7,259 versus 9,092 kcal/kg for PO and SO, respectively. In trial 2, the addition of 0.10 % GML reduced ADFI in poults fed diets containing 5 % PO compared to poults fed 0 or 0.05 % GML, while the addition of either 0.05 or 0.10 % GML reduced ADFI in poults fed diets containing 5 % SO compared to poults fed no GML (P=0.01). There was a similar response with ADG (P=0.01) where the addition of either 0.05 or 0.10 % GML reduced ADG in poults fed diets containing SO compared to poults fed no GML, while the addition of GML was largely without effect in poults fed diets containing PO. There was no interaction between lipid source and emulsifier addition on feed efficiency (P>0.10). Poults fed diets containing PO had a poorer feed efficiency compared to birds fed diets containing SO (P=0.01). The main effect of emulsifier was inconsistent in that poults fed the diets containing 0.10 % GML had the greatest feed efficiency compared to poults fed the diets containing 0.05 % GML, with poults fed diets containing no emulsifier being intermediate (P=0.10). In conclusion, addition of GML improved the ATTD of GE for PO but had no effect on the ATTD of GE for SO. This improvement in energy digestibility, did not however, translate to an improvement in poult performance. Broilers and poults fed diets containing SO had a greater feed efficiency compared to birds fed diets containing PO.

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添加或不添加单月桂酸甘油酯的棕榈油或大豆油喂养肉鸡的能量消化率和肉鸡的生产性能。
我们进行了两项试验,以确定脂质来源(棕榈油,PO 与大豆油,SO)和乳化剂添加量(无与甘油单月桂酸酯-GML)对肉鸡总能(GE)的表观总消化率(ATTD)和小鸡生长性能的交互影响。在试验 1 中,添加 0.05 % 的 GML 对 SO 的 GE ATTD 没有影响,但 PO 的 ATTD 从 77.11 % 提高到 88.21 %(交互作用,P=0.03)。在不添加 GML 的情况下,PO 的 GE ATTD(77.11%)低于 SO(96.48%),导致 PO 和 SO 的 AME 分别为 7,259 千卡/千克和 9,092 千卡/千克。在试验 2 中,与饲喂 0 % 或 0.05 % GML 的家禽相比,添加 0.10 % GML 会降低饲喂含 5 % PO 日粮的家禽的 ADFI,而与不添加 GML 的家禽相比,添加 0.05 % 或 0.10 % GML 会降低饲喂含 5 % SO 日粮的家禽的 ADFI(P=0.01)。ADG 也有类似的反应(P=0.01),添加 0.05 或 0.10 % GML 会降低饲喂含 SO 日粮的家禽的 ADG,而饲喂不含 GML 日粮的家禽则会降低 ADG,而添加 GML 对饲喂含 PO 日粮的家禽基本没有影响。脂质来源和乳化剂添加量对饲料效率没有交互影响(P>0.10)。与饲喂含 SO 的日粮相比,饲喂含 PO 的日粮的小鸡的饲料效率较低(P=0.01)。乳化剂的主效应不一致,饲喂含 0.10 % GML 日粮的家禽比饲喂含 0.05 % GML 日粮的家禽饲料效率最高,饲喂不含乳化剂日粮的家禽饲料效率居中(P=0.10)。总之,添加 GML 提高了 GE 对 PO 的 ATTD,但对 GE 对 SO 的 ATTD 没有影响。然而,能量消化率的提高并没有转化为家禽生产性能的提高。与饲喂含 PO 的日粮相比,饲喂含 SO 的日粮的肉鸡和小鸡的饲料效率更高。
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来源期刊
Poultry Science
Poultry Science 农林科学-奶制品与动物科学
CiteScore
7.60
自引率
15.90%
发文量
0
审稿时长
94 days
期刊介绍: First self-published in 1921, Poultry Science is an internationally renowned monthly journal, known as the authoritative source for a broad range of poultry information and high-caliber research. The journal plays a pivotal role in the dissemination of preeminent poultry-related knowledge across all disciplines. As of January 2020, Poultry Science will become an Open Access journal with no subscription charges, meaning authors who publish here can make their research immediately, permanently, and freely accessible worldwide while retaining copyright to their work. Papers submitted for publication after October 1, 2019 will be published as Open Access papers. An international journal, Poultry Science publishes original papers, research notes, symposium papers, and reviews of basic science as applied to poultry. This authoritative source of poultry information is consistently ranked by ISI Impact Factor as one of the top 10 agriculture, dairy and animal science journals to deliver high-caliber research. Currently it is the highest-ranked (by Impact Factor and Eigenfactor) journal dedicated to publishing poultry research. Subject areas include breeding, genetics, education, production, management, environment, health, behavior, welfare, immunology, molecular biology, metabolism, nutrition, physiology, reproduction, processing, and products.
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