Early Fattening Lamb Could Mitigate Methane Production-an Example of Climate Smart Livestock Farming System in Indonesia

International Ruminant Seminar: "Eco-friendly livestock production for sustainable agriculture"

农业科学;生态环境科学

Purnomoadi, A.^1

Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang, Indonesia^1

关键词: Ad libitum;    Body weight;    Digestive tract;    Dry matters;    Initial weights;    Livestock farming;    Methane emissions;    Methane production;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/119/1/012002/pdf
DOI  :  10.1088/1755-1315/119/1/012002

来源: IOP

【 摘 要 】

Ruminants, with a presence of rumen in their digestive tract, will produce methane during his life. Therefore, shortening the rearing period to produce a meat or milk is an alternative to reduce methane emissions. In Indonesia, in the last decades the tendency to slaughter the sheep at young age (around 5 months old) is increasing. This tendency is due to the young sheep (lamb) provide a tender meat and low in fat, as well as a faster in economical return. This study was aimed to evaluate whether shortening (and early age) fattening can reduce methane emissions. Sixteen data from two experimental sheep, each 8 heads of young sheep (aged 3 months old; initial weight 14.32+/- 1.25 kg), and 8 mature sheep (aged 12 m.o.; initial weight 20.65 +/- 1.89 kg) were used in this study. They were fed the pelleted diet formulated to give at least CP 12% and TDN 60% ad libitum. The results showed that the dry matter intake of young sheep was higher than mature sheep (1.33 vs. 1.08 kg), as well as daily gain (156 vs. 83 g/d) and the methane production (41.4vs 36.0 L/d), or methane production per kg daily gain (269 vs 434 L/kg body weight gain), although the production of methane per DMI was similar (32.0 vs 33.5 L/kg DMI). With assumption that sheep commonly weaned at 2 months old at body weight of 10 kg, and was slaughter at 22 kg of body weight, it could be calculated that shortening (and early age) fattening could reduce totally 1,984 L per head and 10 months shortened.