Saco Yolanda, Fina Marta, Giménez Mercè, Pato Raquel, Piedrafita Jesús, Bassols Anna
Servei de Bioquímica Clínica Veterinària, Departament de Bioquímica i Biologia Molecular, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Spain.
Vet J. 2008 Sep;177(3):439-41. doi: 10.1016/j.tvjl.2007.05.019. Epub 2007 Jul 16.
To assess the validity of laboratory parameters in blood and faeces as indicators of stress in cows, concentrations of cortisol, non-esterified fatty acids (NEFAs), 3-hydroxybutyrate, glucose, triglycerides, cholesterol, serum amyloid A (SAA) and haptoglobin in serum, as well as corticosterone in faeces, were determined in two breeds of cattle (Alberes and Bruna dels Pirineus) under different systems of housing and feeding. Serum cortisol concentrations were markedly elevated in the Alberes group, probably because they were less habituated to human handling. Corticosterone concentrations in faeces were significantly increased in the Bruna dels Pirineus cattle on Alberes pastures. Concentrations of NEFAs and cholesterol were significantly elevated in the Alberes cows, indicating an adrenergic stimulus of lipolysis or the existence of nutritional stress. SAA concentrations were significantly higher in groups living in hardy conditions, whereas there were no significant differences in haptoglobin between the three groups.
为评估血液和粪便中的实验室参数作为奶牛应激指标的有效性，在不同饲养和喂养系统下，对两个牛品种（阿尔贝雷斯牛和布鲁纳·德尔斯·皮里内斯牛）的血清中皮质醇、非酯化脂肪酸（NEFAs）、3-羟基丁酸、葡萄糖、甘油三酯、胆固醇、血清淀粉样蛋白A（SAA）和触珠蛋白的浓度，以及粪便中皮质酮的浓度进行了测定。阿尔贝雷斯牛组的血清皮质醇浓度显著升高，可能是因为它们对人类处理的适应性较差。在阿尔贝雷斯牧场的布鲁纳·德尔斯·皮里内斯牛粪便中，皮质酮浓度显著增加。阿尔贝雷斯奶牛的NEFAs和胆固醇浓度显著升高，表明存在脂解的肾上腺素能刺激或营养应激。生活在艰苦条件下的组中SAA浓度显著更高，而三组之间触珠蛋白没有显著差异。
