Imapact of replacing corn and soya beans with sorghum and faba beans on ruminal fermentation and milk quality in sicilo sarde dairy ewes

In the first study: Four rams bred Sicilo - Sarde aged of 4.8 years with an average live weight of 45.25 kg, permanently canulated in the rumen. Rams received a daily ration in two equal meals. The diet contained 1.5 kg DM of oat hay, complemented by two concentrates: The control concentrate (A) included 10 % barley, 43.3 % corn, 25 % wheat bran, 17.7 % soybean meal, and 4 % of sheep mineral mixture (VMC) and the experimental concentrate (B) included 66 % white sorghum, 30 % faba bean, and 4% of VMC. The results showed that ruminal pH is statistically different before and 2 hours after the morning meal distribution between the two types of concentrates but stabilizes at the end of the day. The rate of ammonia nitrogen is in favor of the control diet before the distribution of the morning meal. The population of ciliated protozoa is similar for both diets. Different genres are statistically comparable for the two regimes.