The Effect of Exogenous fibro lytic Enzymes On The milk production and chemical composition Of Awassi Lactating Ewes

Abstract

The experiment was conducted in the field of animal production of the research ruminants – Office of Research - Ministry of Agriculture in the region of Akrokov 25 km northwest of Baghdad for the period from 16/3/2016 to 4/6/2016, and the objective of the experiment was the effect of addition of different levels of fibro lytic enzymes .The concentrate diet on production and physiological performance lactating Ewes Awassi, In the first experiment, 26 pregnant sheep were used In the late stage and before birth and at the age of 3-5 years, With a weight of 67 kg, The first experiment lasted 42 days preceded by 10 days introductory period The ewes were divided into four groups, each with 6 ewes, of which 15 were born, Treatment control 3 ewes, first treatment 5 ewes, second treatment 4 ewes, third treatment 3 ewes, The trial period was divided into three successive periods from birth every 14 days, Control group without enzyme and treatment of the first, second and third enzyme concentration 1,3,5 kg t-1, respectively. The preliminary period is 10 days ahead, the results showed that: The addition of fibrolytic enzymes to the concentrate diet of the fodder resulted in a significant increase P