Fermentation and exogenous enzymes can increase ileal, hindgut, and total tract energy digestibility of palm kernel cake in growing pigs.

IF 2 3区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Yaowei Sun, Yuxiang Liang, Kai Li, Lianhua Zhang, Ruqing Zhong, Liang Chen, Hongfu Zhang
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Abstract

This study assessed how fermentation and exogenous enzymes affect nutrient digestibility and energy values of palm kernel cake (PKC) in growing pigs. Eighteen pigs were fed six diets: a basal diet, PKC (100 or 200 g/kg), fermented PKC (FPKC; 100 or 200 g/kg), or enzymolysis PKC (EPKC; 100 g/kg). Chromium oxide was used to determine digestibility coefficients. Results showed that PKC inclusion linearly reduced apparent total tract digestibility (ATTD) of dry matter (DM), crude protein (CP), and gross energy (GE), while fermentation or enzymatic hydrolysis mitigated these effects. The regression-estimated digestible energy (DE) values were 11.39 MJ/kg DM for PKC and 12.84 MJ/kg DM for FPKC; metabolisable energy (ME) values were 11.03 and 12.60 MJ/kg DM, respectively. Hindgut fermentation contributed 5.42 MJ/kg DM (PKC) and 4.11 MJ/kg DM (FPKC). Fermentation and enzymatic treatments improved PKC energy utilisation, suggesting their potential as cost-effective alternatives in pig diets.

发酵和外源酶可提高生长猪对棕榈仁饼的回肠、后肠和总道能量消化率。
本研究评估了发酵和外源酶对生长猪棕榈仁饼营养物质消化率和能量值的影响。18头猪饲喂6种饲粮:基础饲粮、PKC(100或200 g/kg)、发酵PKC (FPKC;100或200 g/kg),或酶解PKC (EPKC;100克/公斤)。用氧化铬测定消化系数。结果表明,PKC包合物线性降低了干物质(DM)、粗蛋白质(CP)和总能(GE)的表观全道消化率(ATTD),而发酵或酶解则减轻了这一影响。回归估计的消化能(DE)值PKC为11.39 MJ/kg DM, FPKC为12.84 MJ/kg DM;代谢能(ME)分别为11.03和12.60 MJ/kg DM。后肠发酵分别贡献5.42 MJ/kg DM (PKC)和4.11 MJ/kg DM (FPKC)。发酵和酶处理提高了PKC的能量利用率,表明它们有潜力成为猪日粮中具有成本效益的替代品。
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来源期刊
Archives of Animal Nutrition
Archives of Animal Nutrition 农林科学-奶制品与动物科学
CiteScore
3.90
自引率
5.00%
发文量
31
审稿时长
>24 weeks
期刊介绍: Archives of Animal Nutrition is an international journal covering the biochemical and physiological basis of animal nutrition. Emphasis is laid on original papers on protein and amino acid metabolism, energy transformation, mineral metabolism, vitamin metabolism, nutritional effects on intestinal and body functions in combination with performance criteria, respectively. It furthermore deals with recent developments in practical animal feeding, feedstuff theory, mode of action of feed additives, feedstuff preservation and feedstuff processing. The spectrum covers all relevant animal species including food producing and companion animals, but not aquatic species. Seldom can priority be given to papers covering more descriptive studies, even if they may be interesting and technically sound or of impact for animal production, or for topics of relevance for only particular regional conditions.
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