Evaluation of some Economics Traits in Eastern Sudan Cattle Ecotypes
Ahmed Musa1, Mohamed Khair Abdalla Ahmed2, Nahid Idam1, Ibrahim A. Ishag2
1University of Gezira, Genetics and Animal Breeding (Molecular Genetics), Sudan
Sufficient phenotypic variation in livestock populations is necessary for continual genetic improvement of economically important traits. The general aim of a livestock genetic improvement strategy is to produce a new generation of animals that better performs than the present generation. In eastern Sudan, cattle are mainly kept in a mixed crop-livestock production system and they play multifunctional roles in this system. A study was undertaken on (n = 1650) indigenous cattle ecotypes maintained under farmer management system in eastern Sudan. A total of 211 cattle households were randomly selected and interviewed with structured questionnaires to obtain information on some economically important traits (total milk production, age at first calving, lactation length, calving interval and longevity). Futher information was obtained to quantify differences among eastern Sudan cattle ecotypes (Butana, Erashy and El-gash) under their natural production environment based on phenotypic markers. Data were analyzed using General Linear Model (GLM) procedures when the economically important studied traits were selected as response variables and cattle ecotypes as fixed factors (main effects) to determine if there are significant differences in the responses across levels (fixed effect). It was found that all the studied traits were statistically significant (P ≤ 0.05) by cattle ecotypes. The overall means reported for total milk production (litters /season), age at first calving (months), lactation length (months), calving interval (months) and longevity (years) were 1343.7 ± 20.32, 48.2 ± 0.13, 6.7 ± 0.98, 17.8 ± 0.11 and 17.8 ± 0.36, respectively.
Keywords: Cattle, economically important traits, evaluation, households, selection, Sudan
Contact Address: Ahmed Musa, University of Gezira, Genetics and Animal Breeding (Molecular Genetics), University Street, Wad Medani, Sudan, e-mail: ahmed.musa12yahoo.com