Productive parameters of cattle fed with dry ruminal content

Abstract

The ruminal content is the product obtained from the benefit of bovine animals in slaughterhouses, represented by the food ingested by polygastric animals, which is discarded at the time of slaughter. In cattle the rumen volume is 48 L or 15 to 21% of body weight and 30 to 60 kg, which varies with the diet and with the rate of passage through the digestive tract. 12 calves with an average weight of 250 kg were used, distributed completely randomly in 4 treatments (T): T1, T2, T3 and T4, with 30%, 20%, 10% and 0.0% of ruminal content in the diet, respectively. Food consumption was evaluated every third day, body weight only at the beginning and end of the experiment, and feed conversion was calculated. The results were statistically analyzed by a completely randomized design by analysis of variance (P > 0.05). The average dry matter found in the cattle slaughtered was 4.05 kg. When exposed to the sun on a cement board, it dries in 10 days, being necessary to turn it three times, then it can be crushed. When performing the chemical analysis proximal to this product, it was found that it contained 12.6% crude protein. In the present study, no significant differences were found for any study variable. The weight gain was greater than 1.0 kg/day. The ruminal content obtained from the trail and dried in the sun contained 12.6% crude protein, which can be used in animal feed without affecting production parameters; It also reduces costs for food.