苜蓿草粉对育肥猪生长性能、血清抗氧化及免疫性能相关指标的影响

doi:10.16431/j.cnki.1671-7236.2022.03.017

Abstract

Abstract: 【Objective】 The effects of adding different proportions of alfalfa meal on the growth performance, serum biochemical indicators, antioxidant properties and immune indicators of fattening pigs were studied in this experiment, in order to find out the optimal addition ratio of alfalfa meal in the diets of fattening pigs.【Method】 120 Du×Long×Large pigs with an average weight of (75.5±1.03) kg were selected and randomly divided into 4 groups, with 6 replicates in each group, and 1 pen per replicate.0 (control group), 5%, 10%, and 15% alfalfa meal were added to the basal diets for feeding experiments.The pre-test period was 7 days and the official period was 45 days.The initial weight, final weight of each pig and daily feed intake per pen were determined.After the test, 1 pig was randomly selected from each pen, 10 mL of blood was collected from anterior vena cava to determine the serum biochemical indexes, antioxidant indexes and immunoglobulin content.【Results】 Compared with control group, the average daily gain of each experimental group was significantly reduced (P<0.05).The feed-to-gain ratio (F/G)of 5% and 10% alfalfa groups had no significant difference (P>0.05), while it was significantly increased in 15% alfalfa group (P<0.05).The activities of antioxidant dismutase (SOD) were significantly increased in 3 experimental groups (P<0.05).The triglyceride (TG) content was significantly increased (P<0.05), and the content of malondialdehyde (MDA) was significantly reduced (P<0.05) in 5% alfalfa group.The total antioxidant capacity (T-AOC) and catalase (CAT) activity were significantly increased (P<0.05), while the content of MDA was significantly reduced (P<0.05) in 10% alfalfa group.【Conclusion】 Adding 15% alfalfa meal would significantly increase F/G of fattening pigs, and the addition of 5% and 10% alfalfa could increase the antioxidant capacity.It was recommended that 5%-10% alfalfa meal should be added to the diet of finishing pigs.

Key words: alfalfa meal; finishing pigs; growth performance; serum biochemical index; immune performance; antioxidant index

CLC Number:

S816.4

JIANG Heng, WANG Huaishu, ZHUO Na, WANG Jianguo, REN Jia, GAO Rujun, WU Yuping, GAO Fengqin. Effects of Alfalfa Meal on Growth Performance, Serum Related Indexes of Serum Antioxidant and Immune Performance in Finishing Pigs[J]. China Animal Husbandry and Veterinary Medicine, 2022, 49(3): 953-961.

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Effects of Alfalfa Meal on Growth Performance, Serum Related Indexes of Serum Antioxidant and Immune Performance in Finishing Pigs

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