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Relação entre gordura dorsal e condição corporal, nº de leitões nascidos, adotados, retirados e desmamados em porcas reprodutoras Topigs Norsvin
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Abstract(s)
A dissertação apresentada foi elaborada no decorrer do estágio curricular do Mestrado em Engenharia Agro Pecuária, executada na área de produção animal na empresa Intergados. O objetivo deste estudo foi relacionar a condição corporal e a espessura da gordura dorsal com o desempenho reprodutivo das reprodutoras. A CC e a EGD são parâmetros que devem ser acompanhados ao longo do ciclo reprodutivo das reprodutoras. Estes foram avaliados em 3 momentos: à entrada na maternidade, aos 30 dias de gestação e ao desmame, fornecendo diversas informações acerca da mortalidade dos leitões, do intervalo desmame-cobrição, da relação entre CC e EGD e dos leitões retirados. Com base nos resultados obtidos foi possível verificar um maior intervalo desmame-cobrição nas reprodutoras multíparas, um aumento na mortalidade (234) e (203) nas reprodutoras multíparas com uma EGD entre 7-9 mm, uma alta correlação entre a CC e a EGD e um maior número de leitões retirados em reprodutoras multíparas com uma EGD igual ou superior a 22 mm.A análise estatística foi realizada recorrendo ao programa GraphPad utilizando a ANOVA.Com esta dissertação os produtores conseguirão adaptar/melhorar as suas ideias/estratégias para que seja possível atingir o potencial máximo nas explorações.
The dissertation presented was elaborated during the curricular internship of the Master's degree in Agricultural Livestock Engineering, executed in the area of animal production in the company Intergados. The aim of this study was to relate the body condition (BC) and backfat thickness (BT) with the reproductive performance of the reproductive females.BC and BT are parameters that must be monitored throughout the reproductive cycle of the breeders. These were evaluated in 3 moments: entry into the maternity ward, at 30 days of gestation and weaning, providing various information about piglet mortality, weaning to oestrus interval, relationship between BC and BT and piglets removal.Based on the results obtained, it was possible to verify a greater weaning to oestrus interval in multiparous breeders, an increase in mortality (234) and (203) in multiparous breeders with a BF between 7-9 mm, a high correlation between BC and BT and a greater number of piglets removed in multiparous breeders with a BT of 22 mm or more.Statistical analysis was performed on the GraphPad program using ANOVA.With this dissertation the producers will be able to adapt/improve their ideas/strategies so that it is possible to reach the maximum potential in the farms.
The dissertation presented was elaborated during the curricular internship of the Master's degree in Agricultural Livestock Engineering, executed in the area of animal production in the company Intergados. The aim of this study was to relate the body condition (BC) and backfat thickness (BT) with the reproductive performance of the reproductive females.BC and BT are parameters that must be monitored throughout the reproductive cycle of the breeders. These were evaluated in 3 moments: entry into the maternity ward, at 30 days of gestation and weaning, providing various information about piglet mortality, weaning to oestrus interval, relationship between BC and BT and piglets removal.Based on the results obtained, it was possible to verify a greater weaning to oestrus interval in multiparous breeders, an increase in mortality (234) and (203) in multiparous breeders with a BF between 7-9 mm, a high correlation between BC and BT and a greater number of piglets removed in multiparous breeders with a BT of 22 mm or more.Statistical analysis was performed on the GraphPad program using ANOVA.With this dissertation the producers will be able to adapt/improve their ideas/strategies so that it is possible to reach the maximum potential in the farms.
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Keywords
Condição Corporal Espessura da Gordura Dorsal Desempenho reprodutivo Mortalidade Intervalo desmame – cobrição