Reproductive and productive performance of cows of the Tabapuã breed / Desempenho reprodutivo e produtivo de vacas da raça Tabapuã

Geovan Vendruscolo, Adalgiza Pinto Neto, Fernando Skoniesky, Edson de Azevedo Ribeiro, Graziela Carvalho da Silva, Marcelo Falci Mota, Antônio Campanha Martinez, Luiz Sérgio Merlini, Bruna Carla Frozza, Rodrigo Mateus de Souza

Abstract


The objective of this study was to evaluate the performance of 369 Tabapuã cows, from Copacabana farm, in Xambrê-PR, Brazil. Data was submitted to ANOVA, means assessed by the Duncan test, gestation rates and percentages by Chi square (p <0.05). 76.56% (369/482) of the cows presented age  (μ + σ) of 6.80 + 2.93, and the gestation rate (TG) of the third service, the final TG and the service period varied with the age of cows (p <0.05). The TG of the first and second service, the final TG, the percentage of empty cows and the PS varied according to the number of calving of the cows (p <0.05). The average daily weight gain of calves, weaning weight and calf age varied with cow age (p <0.05). The total percentage of calves weaned and the percentage of males and females did not vary with the age of the cows (p> 0.05). It was concluded that: 1. the age of the cows influenced the TG of the third service, the final TG, the percentage of empty cows, the average daily gain of calves, weaning weight and calf age; 2. the number of births influenced the TG of the first and second services, the final TG, the percentage of calves weaned, the average daily weight gain of calves, calf weight and age; 3. the year of the last calving of the cows influenced the abortion rate, the TG of the first service, the final TG and the number of services / conception, the period of service, the average daily gain of calves, weaning weight and in the age of the calf, and 4. the sex of the calves influenced the average daily weight gain and the weaning weight

Keywords


Cattle; Tabapuã; IATF; Weight gain.

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References


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DOI: https://doi.org/10.34117/bjdv6n4-315

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