Kroustallas Fotios G, Papadopoulos Georgios A, Skampardonis Vasilis, Leontides Leonidas, Fortomaris Paschalis
Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
Department of Epidemiology, Biostatistics and Economics of Animal Production, School of Veterinary Medicine, University of Thessaly, 43132 Karditsa, Greece.
Vet Sci. 2023 Mar 6;10(3):199. doi: 10.3390/vetsci10030199.
Feet infrared temperature is associated with feet health and may affect the reproductive performance of sows. In total, 137, 98 and 114 replacement gilts were selected at the age of weaning from 3 herds-A, B and C-with different genetic lines. Dorsal claw length was measured, and anisodactylia was measured in all four feet, at weaning age, and at those gilts that completed their first and second farrowing. At the first and second farrowing stage, the infrared temperature distribution, dew/claw length and backfat thickness were measured concurrently with claw lesion and mobility score evaluation. The maximum temperature significantly differed ( < 0.01) among herds, in the rear feet and in all four feet at the first and second farrowing respectively. Claw lengths statistically differed among herds at all stages ( < 0.05). Anisodactylia in rear feet was lower in herd A ( < 0.05) at weaning, and in herd C at the first and second farrowing ( < 0.05). In addition, the claw lesion score, mobility, backfat thickness and reproductive performance statistically differed among herds ( < 0.05). It is shown that even at an early stage of their reproductive life, claw length differences exist in replacement gilts of different genetic lines.
足部红外温度与足部健康相关，可能影响母猪的繁殖性能。总共从A、B、C三个具有不同遗传品系的猪群中，在断奶时挑选了137头、98头和114头后备母猪。在断奶时、首次产仔和第二次产仔的后备母猪中，测量了背爪长度，并对四足的蹄叉进行了测量。在首次和第二次产仔阶段，同时测量红外温度分布、蹄叉/爪长度和背膘厚度，并评估爪损伤和活动评分。在首次和第二次产仔时，后足以及四足的最高温度在不同猪群间存在显著差异（P<0.01）。在所有阶段，爪长度在不同猪群间存在统计学差异（P<0.05）。断奶时，A群后足的蹄叉较低（P<0.05），在首次和第二次产仔时，C群后足的蹄叉较低（P<0.05）。此外，爪损伤评分、活动能力、背膘厚度和繁殖性能在不同猪群间存在统计学差异（P<0.05）。结果表明，即使在繁殖生命的早期阶段，不同遗传品系的后备母猪也存在爪长度差异。
