Desenvolvimento ponderal de cordeiros criados em diferentes sistemas alimentares

Abstract

Sheep farming in Brazil is undergoing numerous changes over the years, showing an increase in the market and reaching considerable positions in the agribusiness, collaborating in the country's economic system. It is present throughout the Brazilian territory for being animals that adapt to different food systems and have the ability to onvert low value nutritional material into products with good protein contents. The objective of the study is to evaluate the productive performance and ponderal development of Dorper x Santa Inês crossbred lambs raised in pasture, confinement and in controlled feeding. The experiment will be carried out at the Sheep and Goat Raising Research and Teaching Unit at the Universidade Tecnológica Federal do Paraná Campus Dois Vizinhos: (T1- confined animals receiving 1% of live weight of concentrate and silage), (T2- animals loose in pasture receiving 1% of live weight of concentrate and silage) and (T3- animals with controlled suckling receiving 1% of live weight of concentrate, silage and pasture) both treatments will be used 10 animals being 10 repetitions per treatment with a total of 30 crossbred lambs of the breed Doper x Santa Inês. It is expected that the confined animals will have a better ponderal development, compared to the lambs on pasture and in controlled feeding.