微波加热饲料原料对断奶仔猪生长性能、营养物质表观消化率以及血清生化指标的影响

乔鹏飞; 曹恒; 陈忠洪; 陆文清

doi:10.3969/j.issn.1006-267x.2020.10.036

动物营养学报 >

2020 , Vol. 32 >Issue 10: 4852 - 4861

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.10.036

猪营养与饲料 SWINE NUTRITION AND FEED

微波加热饲料原料对断奶仔猪生长性能、营养物质表观消化率以及血清生化指标的影响

乔鹏飞 ,
曹恒 ,
陈忠洪 ,
陆文清

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1. 中国农业大学动物科技学院, 动物营养学国家重点实验室, 北京 100193;
2. 广西奇昌生物科技有限公司, 桂林 537000

乔鹏飞(1995-),男,山东海阳人,硕士研究生,研究方向为动物营养与饲料科学。E-mail:2949078448@qq.com

收稿日期: 2020-04-14

网络出版日期: 2020-10-22

基金资助

校企合作项目"固态发酵工艺技术攻关和微生物发酵饲料安全验证"（2019B020218001）

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Effects of Microwave-Heated Feedstuff on Growth Performance, Nutrient Apparent Digestibility and Serum Biochemical Indices of Weaned Piglets

QIAO Pengfei ,
CAO Heng ,
CHEN Zhonghong ,
LU Wenqing

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1. State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
2. Guangxi Qichang Biotechnology Co., Ltd., Guilin 537000, China

Received date: 2020-04-14

Online published: 2020-10-22

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摘要

本研究旨在探究微波加热饲料原料对断奶仔猪生长性能、营养物质表观消化率以及血清生化指标的影响。试验选择108头初始体重为（8.12±0.58） kg的28日龄"杜×长×大"断奶仔猪，随机分为3组，每组6个重复，每个重复6头猪，公母各占1/2。负对照组（NC组）饲喂玉米-豆粕型基础饲粮，正对照组（PC组）饲喂基础饲粮+75 mg/kg金霉素，微波加热组（MH组）饲喂用微波加热的玉米和豆粕完全等量取代基础饲粮中玉米和豆粕的饲粮。预试期3 d，正试期35 d。结果表明：在试验前期（第1~14天），与NC组和PC组相比，MH组断奶仔猪腹泻率趋于降低（P=0.07），粗蛋白质（CP）和粗脂肪的表观消化率显著提高（P<0.05），血清总胆血红素（T-BIL）含量显著降低（P<0.05），血清总抗氧化能力（T-AOC）显著提高（P<0.05）；与NC组相比，PC组和MH组断奶仔猪血清超氧化物歧化酶活性显著提高（P<0.05）；与PC组相比，MH组断奶仔猪酸性洗涤纤维（ADF）的表观消化率显著提高（P<0.05）。在试验后期（第15~35天），与NC组和PC组相比，MH组断奶仔猪CP和ADF的表观消化率显著提高（P<0.05），血清尿素氮含量显著降低（P<0.05）；与NC组相比，PC组和MH组断奶仔猪血清T-BIL含量显著降低（P<0.05）；与PC组相比，MH组断奶仔猪血清T-AOC显著提高（P<0.05），血清内毒素含量趋于降低（P=0.09），血清中免疫球蛋白A （P=0.06）和免疫球蛋白G （P=0.09）含量趋于增加。综上所述，微波加热饲料原料可以通过提高营养物质的表观消化率以及增强血清抗氧化能力和免疫功能来改善断奶仔猪生长性能和肠道健康。

关键词： 微波加热; 生长性能; 营养物质表观消化率; 抗氧化能力; 免疫功能; 断奶仔猪

本文引用格式

乔鹏飞 , 曹恒 , 陈忠洪 , 陆文清 . 微波加热饲料原料对断奶仔猪生长性能、营养物质表观消化率以及血清生化指标的影响[J]. 动物营养学报, 2020 , 32(10) : 4852 -4861 . DOI: 10.3969/j.issn.1006-267x.2020.10.036

Abstract

This experiment was conducted to investigate the effects of microwave-heated feedstuff on growth performance, nutrient apparent digestibility, and serum biochemical indices of weaned piglets. One hundred and eight 28-day-old weaned piglets (Duroc×Landrace×Yorkshire) with an initial body weight of (8.12±0.58) kg were randomly allocated to 3 groups in a randomized complete block design. Each group contained 6 replicates and each replicate contained 6 piglets (3 males and 3 females). Piglets in the negative control group (NC group) were fed a corn-soybean meal basal diet, and those in the positive control group (PC group) were fed the basal diet+75 mg/kg aureomycin. In the microwave-heated group (MH group), microwave-heated corn and soybean meal were used to completely replace the same amount of corn and soybean meal in the basal diet. The pre-experimental period lasted for 3 days, and the experimental period lasted for 35 days. The results showed that, in the early period (day 1 to 14), compared with the NC group and PC group, the diarrhea rate of piglets in the MH group tended to be reduced (P=0.07), the apparent digestibility of crude protein (CP) and ether extract was significantly increased (P<0.05), the serum total bilirubin (T-BIL) content was significantly decreased (P<0.05), and the serum total antioxidant capacity (T-AOC) was significantly increased (P<0.05); compared with the NC group, the serum superoxide dismutase activity of piglets in the PC group and MH group was significantly increased (P<0.05); compared with the PC group, the acid detergent fiber (ADF) apparent digestibility of piglets in the MH group was significantly increased (P<0.05). In the later period (day 15 to 35), compared with the NC group and PC group, the apparent digestibility of CP and ADF of piglets in the MH group was significantly increased (P<0.05), the serum urea nitrogen content was significantly decreased (P<0.05); compared with the NC group, the serum T-BIL content of piglets in the PC group and MH group was significantly decreased (P<0.05); compared with the PC group, the serum T-AOC of piglets in the MH group was significantly increased (P<0.05), the serum endotoxin content tended to be decreased (P=0.09), and the serum contents of immunoglobulin A (P=0.06) and immunoglobulin G (P=0.09) tended to be increased. In conclusion, microwave-heated feedstuff can improve the growth performance and intestinal health of weaned piglets by improving the nutrient apparent digestibility and enhancing the antioxidant capacity and immune function in serum.

Key words： microwave-heated; growth performance; nutrient apparent digestibility; antioxidant capacity; immune function; weaned piglets

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