牛至精油和初乳复合物对机会猪生长性能、血清抗氧化和免疫指标的影响

doi:10.16431/j.cnki.1671-7236.2022.04.013

摘要/Abstract

摘要： 【目的】通过研究初生机会猪(体重<1.20 kg)灌服不同水平牛至精油和初乳复合物(EC)对其生长性能、血清抗氧化及免疫指标的影响,为促进机会猪健康发展提供技术依据。【方法】选择128头体况相近、胎次相近(2/3胎)的大长二元母猪,随机分为4组,每组32头,所有母猪饲粮配方一致。对每组母猪所产仔猪中的机会猪在出生后分别灌服0 mL(对照组,CON)、2 mL(EC2组,1次灌服)、4 mL(EC4组,连续2 d灌服)和6 mL(EC6组,连续3 d灌服)牛至精油和初乳复合物。试验期从出生到断奶共21 d,试验期间记录所有仔猪的初生重和结束体重,用于计算机会猪的平均日增重(ADG),并在试验结束后采集机会猪血清用于测定抗氧化和免疫相关指标。【结果】与对照组相比,初生机会猪灌服EC显著提高了断奶重和平均日增重(P<0.05),且各腹泻指标均显著降低(P<0.05);EC4和EC6组死亡率显著降低(P<0.05);EC4组各腹泻指标和死亡率均显著低于EC2组(P<0.05)。EC6组血清中谷丙转氨酶(ALT)和谷草转氨酶(AST)活性均显著低于CON组(P<0.05),球蛋白(GLB)、免疫球蛋白A(IgA)、IgG、IgM水平及超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)活性均显著高于CON和EC2组(P<0.05)。【结论】初生机会猪灌服EC可提高其生长性能,且连续灌服2 d可显著减少腹泻和死亡;连续灌服3 d可提高免疫性能和抗氧化性能。

关键词: 机会猪; 牛至精油和初乳复合物; 生长性能; 抗氧化性能; 免疫性能

Abstract: 【Objective】 This study was aimed to conduct the effects of oregano essential oil and colostrum complex (EC) with different levels on growth performance,serum biochemical indicators,antioxidant and immune capacity in opportunity piglets (body weight were <1.20 kg),further provide technical basis for promoting healthy growth of opportunity piglets.【Method】 A total of 128 binary sows (Landrace×Large White) with similar body condition,parity (2/3) and litter sizes were divided into 4 groups randomly,32 sows per group,all sows were fed as the same diet formula.Opportunity piglets from each sow group were administrated 0(control,CON),2(EC2,oral administration once),4(EC4,for 2 consecutive days) and 6 mL(EC6,for 3 consecutive days) EC by gavage after birth,respectively.The trial period lasted for 21 days from birth to weaning.The birth weight and weaning weight of all piglets were recorded to calculate average daily gain (ADG).Serum of opportunity piglets was collected at the end of experiment to measure the antioxidant and immune indexes.【Result】 Compared to CON,feeding EC after birth significantly increased weaning weight and ADG (P<0.05),and significantly decreased diarrhea indexes of opportunity pigs (P<0.05).The mortality in EC4 and EC6 decreased significantly (P<0.05).And the diarrhea indexes and mortality in EC4 were significantly lower than EC2 (P<0.05).The activities of ALT and AST in EC6 were significantly lower than CON (P<0.05),while the concentrations of GLB,IgA,IgG and IgM,and the activities of SOD and GSH-Px were significantly higher than CON and EC2 (P<0.05).【Conclusion】 In summary,neonatal opportunity piglets administered EC could improve growth performance,and continuous feeding for 2 days could significantly decrease diarrhea and death;While continuous feeding for 3 days could improve immune and antioxidant property.

Key words: opportunity piglets; essential oil and colostrum complex; growth performance; antioxidant property; immune performance

中图分类号:

S816.7

张瑞, 周维强, 马越, 吴建平, 雷赵民. 牛至精油和初乳复合物对机会猪生长性能、血清抗氧化和免疫指标的影响[J]. 中国畜牧兽医, 2022, 49(4): 1314-1321.

ZHANG Rui, ZHOU Weiqiang, MA Yue, WU Jianping, LEI Zhaomin. Effects of Oregano Essential Oil and Colostrum Complex on Growth Performance, Serum Indicators Related Antioxidant and Immune in Opportunity Piglets[J]. China Animal Husbandry and Veterinary Medicine, 2022, 49(4): 1314-1321.

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