Fermentability and Digestibility of Dairy Cattle Ration Containing Corn-NFC, Protected Soybean and Sulfur Supplementation

Abstract

Abstract Protein is an essential nutrient for dairy cattle in order for them to produce milk. Ruminant protein value can be maximized by feeding autoclave-protected soybeans, non-fiber carbohydrate (NFC) from corn, and sulfur supplementation. The purpose of this study was to see how protected soybean protein, NFC corn, and Na2SO4 supplementation affected the fermentability and digestibility of dairy cattle rations. This study used a randomized block design with five treatments: rations without corn and soybeans (R1), rations with corn but no soybeans (R2), rations with corn and soybeans (R3), rations with corn and autoclave-protected soybeans (R4), and rations with corn, autoclave-protected soybeans, and sulfur supplementation (R5) (R5). As replications, the treatments were repeated four times. The ANOVA was used to analyze the data, which was then followed by an orthogonal contrast test. The treatment had no effect on pH, protozoal number, dry matter, or organic matter digestibility. Although treatment R3 produced significantly more ammonia (P0,05) than R4 and R5, R5 produced the most VFA and total bacteria. It can be concluded that rations containing protected soybean and corn as NFC sources, as well as sulfur supplementation, increase fermentability while decreasing in vitro digestibility.