The balance of rumen degradable protein and readily available carbohydrate in sheep rations on in vitro fermentability

• Published in: Journal of advanced veterinary and animal research Vol. 10; no. 4; pp. 738 - 743
• Main Authors: Yunilas, Yunilas, Zain, Mardiati, Tanuwiria, Ujang Hidayat, Syamsu, Jasmal Ahmari
• Format: Journal Article
• Language: English
• Published: Bangladesh Network for the Veterinarians of Bangladesh Bangladesh Agricultural Universityת Faculty of Veterinary Science 01.12.2023; A periodical of the Network for the Veterinarians of Bangladesh (BDvetNET); Network for the Veterinarians of Bangladesh
• Subjects: Ammonia; Availability; balance; in vitro; rac; rdp; rumen; sheep; Carbohydrates; Degradation; Digestibility; Dry matter; Energy; Enzymes; Feeds; Livestock; Microorganisms; Nutrients; Organic matter; Original; Protein biosynthesis; Protein synthesis; Proteins; Rations; Ratios; Rumen; Sheep; RAC; Balance; rumen; sheep; in vitro; RDP
• ISSN: 2311-7710; 2311-7710
• DOI: 10.5455/javar.2023.j729

Protein and carbohydrates are substances needed by ruminants, especially sheep. Providing protein and carbohydrates must pay attention to their degradation. In addition, balancing nutrients to meet the nutritional needs of rumen microbes is very important because the unbalanced availability of rumen degradable protein (RDP) and readily available carbohydrate (RAC) at one time can cause suboptimal microbial protein synthesis efficiency. Completely randomized design with a nonfactorial pattern of five treatments with three replications. Treatment includes RDP and RAC ratios, namely R1 = 2.30, R2 = 2.00, R3 = 1.70, R4 = 1.50, and R5 = 1.30. The results showed that the balance of RDP and RAC in sheep ration formulation had a very significant effect ( < 0.01) on NH , microbial protein synthesis, total gas, total microbes, and organic matter digestibility (OMD) but had no significant effect ( > 0.05) on rumen pH and dry matter digestibility (DMD). The optimal balance of RDP and RAC in the formulation of sheep rations was obtained at a ratio of 2.30 with NH (mM) 8.47, rumen pH 5.97, microbial protein synthesis (mg/100 ml) 123, gas (ml/g of material) 145, total microbes (cells/ml) 2.012 × 10 , (log CFU cells/ml) 6.3025, DMD 61.0%, and OMD 63.1%.