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Sep 19, 2023Keywords:
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Viability and adaptability of mestizo female cattle from artificial insemination compared with local
Abstract
The objective of this study was to determine after 48 months of age, the growth and viability of crossbreds resulting from Artificial Insemination (AI). The methodology used was the follow-up of 39 crossbreds from IA with 40 local sisters whose births coincided. The data collected concerned the weight of calves, mortalities and their causes. The adaptation of mestizos in the environment was evaluated. The results showed that the weights of Mestizos calves from birth 20.65 ± 6.54 kg (Local x MO) and 23.30 ± 5.34 kg (Local x HO) to three months of age 55.12 ± 4 .95 kg (Local x MO) and 56.65 ± 5.08 kg (Local x HO) was higher (p ≤ 0.05) than those of their local counterparts (17.32 ± 3.74 kg and 42. 05±11.89kg). The pre-weaning mortality rate (18.19%) was higher (p ≤ 0.05) than that obtained in the post-weaning period (11.48%) and is mainly due to calf diarrhea (37 ,30%). The Local x MO crossbreds seem better adapted than those resulting from the Locales x HO in the climatic conditions of Togo in terms of consumption skills and sensitivity to heat. In conclusion, the survival of crossbreeds requires permanent health monitoring and good farm management.
