Metabolisable energy requirements for maintenance and gain of liveweight of Bali cattle (Bos javanicus)

Abstract

A series of liveweight gain (LWG), feed and water intake and digestibility experiments were conducted across eastern Indonesia. Thirty-six datasets of LWG, feed and water intake, and diet characteristics were used to determine the nutritional requirements of growing Bali cattle fed a wide range of diets that varied in crude protein content and apparent dry matter digestibility. Regression of average daily LWG against estimated metabolisable energy (ME) intake was conducted, and the ME requirements for maintenance of liveweight (LW, 0 kg/day) and LWG were determined. It was estimated that the ME required to maintain LW of this class of Bali cattle, across the range of diets evaluated, was 0.47 MJ ME/kg LW0.75.day and that 34 MJ ME was required for each kg LWG, or 29 g LWG/MJ ME. The relationship between estimated ME intake and LWG was not affected by the crude protein content of the diet. The data demonstrate that ME requirements for maintenance of LW of Bali cattle are comparable with values for other cattle species, but that this class of Bali cattle is generally less efficient in the use of ME for LWG across the range of diets evaluated.

A comparison of average daily gain, apparent digestibilities, energy balance, rumen fermentation parameters, and serum metabolites between yaks (Bos grunniens) and Qaidam cattle (Bos taurus) consuming diets differing in energy level

“…The ME requirement for maintenance (ME m ) was estimated by regressing ADG on daily ME intake (MEI), as ADG is an indirect measure of energy retention, and the MEI at “ADG = 0” was shown to estimate energy requirements accurately ( Quigley et al., 2014 ; Liu et al., 2019 ). The regression equation took the following form: ADG (g/d) = a MEI (MJ/kg BW 0.75 per d) + b .…”

Liveweight Gain Response of Bali Bulls Fed Leucaena and Cassava Peels to Increasing Levels of Fermented Corn Stover in Diets

“…The LWG of cattle recorded in this experiment was still below the highest values recorded for Bali bulls. Higher growth rates of 0.56-0.61 kg/d were reported by Quigley et al, (2014) when a Leucaena-based diet was supplemented with energy sources (maize grain or rice bran) at about 40% of diet. Dahlanuddin et al, (2018) also reported a higher liveweight gain of 0.66 kg/d for similar class of Bali bulls fed Leucaena and supplemented with maize grain at 40% of diet.…”

The effect of increasing proportion mixed vegetable wastes in combination with corn stover as a basal diet on intake, digestion, liveweight gain and income over feed cost of Bali bulls supplemented with rice bran

“…The increase in ADG in this study was in line with the increase in protein intake and metabolic energy retention (Table 2). Quigley [19] found that the metabolisable energy required for maintenance is 0.47 MJ EM/kg body weight 0.75 for young male Bali cattle. Poppi [20] recommends that the growth rate of beef cattle can be increased if metabolasble energy intake meets animal needs.…”