Using Fish Meal in Dairy Rations
نویسندگان
چکیده
: ed u/c ata log Bypass protein is an important part of the diet of lactating cattle. The National Research Council recommends that bypass protein make up 34 to 36 percent of the total crude protein consumed by lactating cattle. Fish meal is high in crude protein (65 to 70 percent) and is a source of bypass protein (also called ruminally undegradable protein or RUP). It can be used in dairy rations to help meet the bypass protein requirement. The addition of fish meal, which is high in lysine, also would be an advantage in cornand corn silage-based diets with a low lysine content (Table 1). Other animal bypass protein sources include meat meal, feather meal, meat and bone meal, and blood meal. Grain sources include corn distillers grains and corn gluten meal. Decide which sources to use based on cost, amino acid profile, and availability. IS P UB LIC A
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