Ambiente térmico, comportamento e bem-estar de vacas leiteiras em sistema compost barn

• Autor(a) principal: Lambertes, Tainara da Silva
• Data de Publicação: 2019
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UTFPR (da Universidade Tecnológica Federal do Paraná (RIUT))
• Texto Completo: http://repositorio.utfpr.edu.br/jspui/handle/1/28772
• topic: Bovinos - Fatores climáticos; Bovinos de leite; Leite - Produção; Cattle - Climatic factors; Dairy cattle; Milk production; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA

The elements like temperature, relative humidity, radiation and ventilation,directly influence the comfort and the behavior of animals, being that when there is no conformity in the climatization of canvas, the productive potential of these animals will beharmed.This way the objective by means of thi swork wasto evaluate the influence of thermalen vironmentina compost barn shedunder thebehavioral and physiological aspects of dairy cows. The research was carried out between October 2017 and February 2018, in particular property located in the São Luiz do Chopim, in the city of Dois Vizinhos - PR. Were Used 18 crossbred cows (Holstein x Jersey), divided into two treatments according to the order of lactation, being treatment consisting in primiparous and multiparous another per. The microclimatic variables recorded were the air temperature, black globe temperature, relative humidity and wind speed. For the behavioral analysis was used an ethogram that allowed the visualization of the animals in the course of 10 minutes in an interval of 30 minutes during 24 hours. For the behavioral analysis was used an ethogram that allowed the visualization of the animals in the course of 10 minutes in an interval of 30 minutes during 24 hours. The data regarding thermal comfort indices and behavior were analyzed through bayesian inference, using the software R. With respect to the thermal comfort indices, it was observedthat the compost shed barn offers good thermal conditions for animals. For the animal behavior, there was a difference between the treatments for the behaviors of eating, drinking water, and idleness lying, which indicates that this fact is given by social arrangement,where the dairy cows exert dominance overthe primiparous cows.For the animal behavior, there was a difference between the treatments or the behaviors of eating, drinking water, and idleness lying, which indicates that this fact is given by social arrangement, where the dairy cows exert dominance over the primiparous cows.