母猪电子群养系统和个体限位栏系统繁殖性能及动物福利水平对比分析

doi:10.11843/j.issn.0366-6964.2016.06.014

Abstract

Abstract:

The study aimed to investigate the effect of two different kinds of pregnant sow husbandry systems，electronic sow feeding (ESF) group housing system and the traditional individual stall system，on reproductive performance，welfare levels (behavioral expression，incidence rate of injury，secretion of eyes and snout) and the average cost for each weaned piglet.100，60，120 pregnant sows from each system in the 2 farms with ESF and individual stall systems were chose to compare their reproductive performance，behavior index，scars and eye nasal secretions between the 2 systems within the same farm，and account the cost of weaning piglets.The results showed that，in reproductive performance，there was no significant difference (P>0.05) in annual fodder consumption，days of pregnancy，number of pigs born alive in each litter，number of weaned piglets in each litter and annual parity for sows bred between the 2 systems，but the ESF system significantly increased the weight of weaned piglets (P<0.05).The result showed that individuals in the 2 systems had similar reproductive performance and the ESF system had an advantage on suckling pig growth.In terms of animal welfare，a significant decline in the frequency of standing，lying，sham-chewing，bar-biting，urination，drinking，genital injury and secretions of the eyes and snout (P<0.05) were recorded in the ESF system.There was also a considerable rise in the occurrence of sleeping，fighting，vocalizing，feeding，defecation and sow’s physical injuries (P<0.05) in the ESF system.The results showed that individuals in the ESF system had better sow welfare than the individuals in stall system in most areas，the increase in vocalizing，fighting and physical injuries was because these were more opportunities for individual interaction among sows in the ESF system.In terms of the costs for producing a weaned piglet，there was a significant increase in water and electricity expenses and the depreciation of plant and equipment (P<0.05) in the ESF system，but at the same time，a significant reduction in wage costs (P<0.05)，which resulted in no significant difference in the total costs for breeding weaned piglet between the 2 systems(P>0.05).The findings of this investigation show that there is no significant difference between the ESF group housing system and individual stall system in terms of average weaned piglet cost and reproductive performance，but that the ESF system has improved animal welfare for the sows and can effectively reduce labor costs.However，it also needs well trained and responsible personnel to manage the system properly.

CLC Number:

S815.4

GU Xian-hong，ZHANG Jun-ling. Comparative Analysis of Reproductive Performance and Animal Welfare Levels in Electronic Sow Feeding and Conventional Sow Stall Systems[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2016, 47(6): 1189-1197.

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Comparative Analysis of Reproductive Performance and Animal Welfare Levels in Electronic Sow Feeding and Conventional Sow Stall Systems

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