手术去势后包扎对仔公猪创口愈合、行为、生产性能和血液指标的影响

doi:10.11843/j.issn.0366-6964.2021.09.031

Abstract

Abstract: This study aimed to explore the effects of bandaging or not after surgical castration on wound healing, the animal behavior, production performance and blood index of male piglets. Two hundred and twenty-four Duchang male piglets with good health and similar weight were randomly divided into 3 groups, sham operation (group A), wound bandage (group B) and no bandage (Group C) groups were set up. The male piglets were castrated without anesthesia at the age of 5 days and then the related indexes were detected until the age of 21 days. Wound healing, animal behavioral performance, mortality, production performance, serum cortisol (COR) and immunity index were evaluated after the ending of castration and bandaging on male piglets. The results showed that the scores of wound healing degree in the male piglets of group C were significantly higher than those in group B (P<0.05); the behaviors of standing, playing and exploring were significantly reduced (P<0.01) and the behaviors of being alone, screaming, hugging, abnormal urination, unstable standing and fear of man were extremely significantly increased (P<0.01) after surgical castration without bandaging. Wound bandage had obvious effects on the behavior of playing and fear of man; There was no significantly difference between group B and C in the weaning weight and average daily gain (ADG) during the entire test period (P>0.05). Although the mortality caused by surgical castration were increased, the mortality rate of (1.35%) group B was significantly lower than group C (6.41%) within 5 days after surgical castration; The concentration of COR in both group B and C were significantly higher than that of the group A (P<0.01) while the secretion of immunoglobulin A (IgA) and immunoglobulin G (IgG) in serum were significantly lower than group A (P<0.01) within 3 days after surgical castration; However, by the fifth day, the concentration of COR in group B was significantly lower than group C (P<0.05) and the secretion of IgA and IgG in group B were significantly higher than group C (P<0.05) and there was no significantly difference between pre-and post-operation in secretion of interleukin-12 (IL-12) and interferon-γ (IFN-γ) (P>0.05). The above results indicate that the intense pain stress could be caused by surgical castration in male piglets, the post-operative bandaging can significantly reduce the wound redness, swelling, bleeding and the mortality by infection, accelerate wound healing, help ease the pain, promote the recovery of blood indexes, so as to protect the welfare level of male piglets.

Key words: surgical castration, welfare level, male piglets, wound healing

CLC Number:

S857.128

YANG Zhiwei, WANG Jing, WANG Shuai, HUANG Tao, LI Zhixing, HAO Kexing, GU Xinli, HU Guangdong. Effect of Bandaging after Surgical Castration on Wound Healing, Behavior, Production Performance and Blood Index of Male Piglets[J]. Acta Veterinaria et Zootechnica Sinica, 2021, 52(9): 2673-2681.

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Effect of Bandaging after Surgical Castration on Wound Healing, Behavior, Production Performance and Blood Index of Male Piglets

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