Relation between swine weight and morphometric measurements

• Autor(a) principal: Holanda, Mônica Calixto Ribeiro de
• Data de Publicação: 2020
• Outros Autores: Holanda, Marco Aurélio Carneiro de, Lucena, Leandro Ricardo Rodrigues de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/8013
• topic: Modelo potência; Morfometria; Estimação ponderal; Modelo linear.; Power model; Morphometry; Weight estimation; Linear model.; Modelo de potencia; Morfometría; Estimación de peso; Modelo lineal.

Objective was to define a mathematical model that better explain the relationship of the animals weight depending not only on the animals age but also on the animals morphometric measurements. 40 piglets, half Duroc-Large White blood, were used, 20 males and 20 females, from 3 to 35 days of age (lactation phase) initially weighing 1.518 ± 0.121 kg and from 36 to 66 days of age (calving phase) with a body weight of 7.010 ± 0.704 kg. The animals were weighed weekly on a digital balance. The relationship of animal weight, age and morphometric measurements of male and female piglets were performed using regression models: existing, linear and power. The models were evaluated according to nine criterialinear model was the most adequate to explain the weight of male pigs, while for female pigs was the power. The age of the pig, the shank and palette length, as well as the circumference of the shank jointly explain the weight of the male piglets. The weight of females is explained jointly by age, body length, thorax and hip circumference.