School of Veterinary Medicine and Animal Science, Federal University of Bahia (UFBA), Salvador, Brazil.
Department of Animal Science, School of Veterinary Medicine and Animal Science/Federal University of Bahia, Salvador, Bahia, 40.170-110, Brazil.
Trop Anim Health Prod. 2023 Oct 24;55(6):373. doi: 10.1007/s11250-023-03791-1.
This study evaluated the welfare of Saanen, Moxoto, and Anglo-Nubian goats kept in collective or individual pens for a feedlot system, evaluated with infrared thermography. A total of twenty-four goats were used, eight for each breed. Animals were distributed in a completely randomized design, with a 2 × 3 factorial with two fixed effects: housing type (collective or individual pens) and breed (Moxoto, Saanen, and Anglo-Nubian). The surface temperature was evaluated using an infrared thermographic camera, and behavioral analysis was based on the qualitative behavior assessment using a fixed list of descriptors. The breed was not different for all behavior evaluations and surface temperature (p>0.05). There was a difference between the housing types, where the collective pens showed goats more agitated, frustrated, and sociable (p<0.05). There was an influence of agitated, apathetic, frustrated, attentive, and curious behaviors on surface temperatures, in which feet and body temperatures decreased in these goats. (p<0.05). Moxoto, Anglo-Nubian, and Saanen goats showed similar behavior even when kept in collective or individual pens. Individual pens can restrict the goats' social relationships but reduce negative behaviors such as irritation and frustration. The lower foot temperatures of feedlot goats are related to the attention behavior in 86.75% of the observations.
本研究评估了在集中或单独畜栏中饲养的萨能奶山羊、莫科托山羊和努比亚山羊的福利，采用红外热成像技术进行评估。共有 24 只羊被用于实验，每个品种 8 只。动物采用完全随机设计，具有 2×3 的因子设计，包括两个固定效应：畜栏类型（集中或单独畜栏）和品种（莫科托山羊、萨能奶山羊和努比亚山羊）。使用红外热成像摄像机评估表面温度，行为分析基于使用固定描述符列表的定性行为评估。所有行为评估和表面温度均未发现品种间的差异（p>0.05）。畜栏类型之间存在差异，其中集中畜栏的羊表现出更激动、沮丧和社交性（p<0.05）。激动、冷漠、沮丧、专注和好奇等行为会影响表面温度，这些羊的脚和体温会下降（p<0.05）。即使在集中或单独畜栏中饲养，莫科托山羊、努比亚山羊和萨能奶山羊也表现出相似的行为。单独畜栏可能会限制羊的社交关系，但会减少烦躁和沮丧等负面行为。在 86.75%的观察中，饲养场羊的较低脚温与关注行为有关。
