Growth performance of three groups of crossbreds between Charolais, Red Angus and Droughtmaster bulls with Brahman crossbred cows in Tu Nghia district, Quang Ngai province
The experiment was carried out to evaluate the growth ability of cow combinations between Charolais, Droughtmaster and Red Angus bulls with crossbreds Brahman cows from birth to 18th month of age in Tu Nghia district, Quang Ngai province. The results of the study on 60 crossbred cows (20 cows/crossbred) showed that the average body weight of the crossbreeds from birth to 18th of age was the Charolais × crossbreds Brahman cows: newborn 28.8 kg, 18th of age 386.6 kg; Next is the Red Angus × crossbreds Brahman cows: 27.9 kg newborn, 369.2 kg at 18th of age and the lowest is the Droughtmaster × crossbreds Brahman cows: 27.6 kg newborn and 18th of age 340.3 kg. The mean weight gain of crossbreds from birth to 18th month of Charolais and Red Angus crossbreds was higher than that of Droughtmaster crossbreeds (P<0.05), respectively, reaching 662.6; 632.1 and 579.2/head/day. Male calves have higher body mass and dimensions than female calves at different ages. Through the study, it can be concluded that the Charolais, Red Angus and Droughtmaster crossbreds cows have good growth and development potential in farming conditions in Tu Nghia district, Quang Ngai province.
