ANSC 2120 Lecture Notes - Lecture 2: Vicia, Inflorescence, Rhizobium

• School: Cornell University
• Department: Animal Science
• Course: ANSC 2120
• Professor: Debbie Cherney

Document Summary

Plant composition and nutritive value (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) More nutritious, higher in nonstructural carbohydrate and protein lower in structural carbohydrate (fiber: make the veins" in the leaves (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Less nutritious higher in structural carbs (fiber) Majority of energy for feed of production animals. Generally unimportant except in a few cases (like turnip) Leaves and stems of grasses (including cereals; wheat, oats, etc. Seeds of cereals, oil seed plants (ex: canola) Cereal seed coals (bran), oil seed meal. 2 major families of cultivated forages: grasses, legumes. Seed unit tends to be starch rich (ex: corn) Bacteria convert n2 to nh4+ for plant use, and plant supplies energy/food to bacteria. /unit weight: nutrient density concentration of specific nutrients, digestibility ability of animal to digest and absorb. Digestibility is usually measured in apparent nutrients digestibility" (%) (dietary intake feces output)/dietary intake x 100. Called apparent because feces is not only food that wasn"t digested.