Straw is obtained from cereals used for feeding animals during lean period. Its nutritive value is poor. In developed countries straw is used for bedding purpose in animal shed. 40-45% total digestible nutrients present in straw provides bulkiness to rumen fulfilling its crude fiber demand. It’s not palatable so given with green fodder, either chaffed or as such.
Rice straw: Rice straw contains protein, and metabolic energy value is similar to that of barley straw. Exceptionally high as content: 170gm/kg DM consists mainly silica. Lignin content: 60-70 gm/kg DM: lower than that of cereal straw. In contrast to other straw, the rice steam are more digestible than leaves.
Maize straw: Maize straw or corn stover has a higher nutrient content and is more digestible than other straws. The animals may be turned into the corn fields after the grain have been harvested or the stover may be chopped, ensiled, and consumed in a similar way to maize silage. Alternatively the stover after drying in the field can be staked or harvested as large round bakes.
Wheat and rye straw: Considered to be poor in nutritive value. Foods for farm animals not recommended. Digestibility can be increased by alkali treatment.
Legume Straw: The straw of beans and peas are rich and protein, calcium and magnesium and if properly harvested are useful roughage, foods for ruminant animals. Because of their thick fibrous system, they are more difficult to dry than cereal straws and frequently become moldy during storage.
Barely and oat straw: Composition of both barley and oat is influenced more in different maturity stage of crop at harvesting and environment than by cultivar grown. Crude protein contained in barely and oat is 20 and 50 gm/kg DM respectively.
Stalk/Stover: After harvesting maize, sorghum, finger millet whatever plant material remains are called stalk. Stovers are outer covering of fruit in case of maize. Nutritive value of straw, stover is higher in green feeding which is widely used for feeding lactating animals to support their metabolic energy requirements for milk production. To increase their palatability they are incorporated with green fodder.
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