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This study had the objective of evaluating the productive performance of ewes mated in summer or in autumn, during four breeding seasons. A total of 233 ewes, from the breeds Corriedale (n=55), Hampshire Down (n=116), Ile de France (n=40) and Suffolk (n=22), with 2 to 8 teeth, were used. Lambing rate was greater (P0.05) between ewes mated in autumn or summer for weaning, twin and lamb death rates, and for the production of kg of lambs per kg of mated ewe. Breed and age of ewe and year of evaluation influenced (P0.05) the production of kg of lambs per kg of mated ewe. In the northern region of the Paraná state, ewes can be mated in summer or in autumn.<p><p>Este estudo teve por objetivo avaliar o desempenho produtivo de ovelhas acasaladas no verão ou no outono, durante quatro estações de acasalamento. Foram utilizadas 233 ovelhas, das raças Corriedale (n=55), Hampshire Down (n=116), Ile de France (n=40) e Suffolk (n=22), com idades de 2 a 8 dentes. A parição foi maior (P0,05) entre ovelhas acasaladas no verão e outono. Raça e idade da ovelha e ano de avaliação apresentaram influência (P0,05) a produção de kg de cordeiros por kg de ovelha acasalada. Ovelhas, no norte do Paraná, podem ser acasaladas tanto no verão quanto no outono

Desempenho produtivo de ovelhas submetidas a acasalamentos no verão ou no outono no Norte do Paraná