Proximate Analysis and Rumen Degradation of Some Common Feeds in Camels, Khartoum State , Sudan

Abstract

The new ruminant protein systems require information on feeds degradation characteristics. Currently in Sudan the information on rumen degradation in camels is not available. Therefore, this study aimed to determine the rumen degradation and degradation characteristics of some common feeds namely; Medicago sativa (Barseem), Sorghum bicolor (Sorghum Feterita grains), Arachis hypogaea (Groundnut cake) , Gossypium barbadense (Cottonseed cake) and Sorghum husks (“Seewa”). In addition the concentrate ration fed to the camels . The study was conducted at the Central Veterinary Research Laboratory (CVRL), Soba, Khartoum State. The proximate analysis of the feed samples was determined. Three rumen fistulated camels were used to study the rumen degradation. The animals were fed Medicago sativa (Barseem) ad lib . and 2kg concentrate ration daily. Artificial fibre bags (18x14cm) were incubated in the rumen for different times and degradation characteristics were calculated. The effective degradability at different rates of outflow from the rumen of the feed samples was calculated. Results showed that the feed samples varied in proximate analysis and degradation characteristics. Crude protein )CP) was highest in Arachis hypogaea (40.6%) while the least value was in )“Seewa”( (7.5%). The highest CP potential degradability was observed in Sorghum bicolor while the least was shown in Gossypium barbadense. The effective degradability varied in feed samples and decreased with increasing rates of outflow from the rumen. It is concluded that camels have high feeds rumen degradation, therefore, we recommend the use of common feeds for grazing camels in the dry season