Control of Food Diet in the Minimization of Greenhouse Gases Generated by Cattle Bovine

The objective of this work was studying the diet of extensively reared bovines that decreases the emission of greenhouse gases. The study took place in a farm called Campo Dorado located in the district of Huallanca, in the province of Bolognesi, department from Ancash, in Peru. In this study, the sample selected was 4 Brown Swiss cattle between 4 to 5 years of age and weighing between 470 to 570 kg, they were chosen for a population of 70 cattle from the livestock, which were conditioned in chambers separated, specially prepared for monitoring, as the sample. The closed chamber technique was performed on 4 groups (differentiated according to the type of diet followed in the study) with 2 monitoring teams and lasted 5 days. The control group's diet was green grass from the research area, while group 1 had a diet of oat silage, group 2 of oat hay, and group 3 of a mixture of silage and hay. The reductions achieved for methane emissions were: in group 1 the reduction was 16%, for group 2 the reduction turned out to be 29% and for group 3 it was 9%. Regarding the reductions achieved with carbon dioxide for groups 1 and 2, they were 33% and 61% respectively, while for group 3 there was an increase of this last gas by 4%. Therefore, it was concluded that oat hay is the most appropriate diet for reducing greenhouse gas emissions in extensively reared cattle.