Weaning weight of Brahman cross (BX) and Bali cattle under intensive and oil palm plantation-cattle integrated systems

Abstract

Indonesian territory comprised of a vast archipelago with diverse environmental condition affects cattle’s growth and productivity. This paper was aimed to compare the weaning weight (WW) of two genotype groups of cattle (Bali and BX) under different production systems. Data were obtained from oil palm plantation cattle integrated system (OPP) in Central Kalimantan (972 BX, 131 Bali), an intensive cattle farm in Java Island (15 BX) and a state’s breeding farm in Bali Island (322 Bali). We visualize the distribution of WW from both breeds and analyse the interaction between genotype groups and production systems. Data visualization revealed structures underlie the dataset, we observed that Bali cattle data were clustered into two distinct groups. Least squared means and standard deviation of WW in Bali cattle were 84.26±17.29 and 169±74 kg whereas for BX were 121±32 and 174.28 kg for farm and OPP production systems respectively. Results from a linear model which showed that genotype group, production systems, sex, and two ways interactions between genotype group and production system had a significant effect on WW (α = 0.05). In their respective farm production systems, BX performed significantly better than Bali cattle. However, in OPP-production system both genotype groups had similar performance.