Salamanca-Carreño Arcesio, Jordana-Vidal Jordi, Crosby-Granados René Alejandro, Arias-Landazábal José Norberto, Parés-Casanova Pere M
Grupo de Investigaciones los Araucos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Cooperativa de Colombia, 810001 Arauca, Colombia.
Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia, Spain.
Animals (Basel). 2020 Sep 28;10(10):1763. doi: 10.3390/ani10101763.
This study aimed to evaluate the allometric growth of the Araucan pig breed, a creole breed from Arauca, East Colombia, locally known as "Sabaneros", in relation to different quantitative traits and considering genders separately. To do this, a total of 31 male and 27 female Araucan pigs, ranging from 4 to 48 months of age, were studied in order to evaluate their growth patterns, using a multivariate approach. Animals belonged to different farms ("fincas") of the Department of Arauca, Colombia. From each individual, 10 quantitative traits were obtained: face width, croup height, croup length, croup width, tail base height, hock height, loin height, cannon length, and length and width of ear. Our results, which must be interpreted as preliminary, showed that the Araucan pig is allometrically monomorphic as sexual differences do not increase with body size. We suggest that although males and females have evidently different reproductive roles, during growth they shift the allocation of energy to structures linked to environmental adaptation rather than those linked to reproduction.
本研究旨在评估来自哥伦比亚东部阿劳卡的克里奥尔品种阿劳坎猪的异速生长情况，该品种在当地被称为“萨瓦内罗斯猪”，研究涉及不同的数量性状，并分别考虑性别因素。为此，共研究了31头雄性和27头雌性阿劳坎猪，年龄在4至48个月之间，采用多变量方法评估它们的生长模式。这些猪来自哥伦比亚阿劳卡省的不同农场（“庄园”）。从每头猪个体上获取了10个数量性状：脸宽、臀部高度、臀部长、臀部宽度、尾根高度、跗关节高度、腰部高度、管骨长度以及耳朵的长度和宽度。我们的结果（必须作为初步结果来解读）表明，阿劳坎猪在异速生长方面是单形的，因为性别差异不会随着体型的增大而增加。我们认为，尽管雄性和雌性具有明显不同的生殖角色，但在生长过程中，它们将能量分配转向与环境适应相关的结构，而非与繁殖相关的结构。
