Effects of dry corn gluten feed on milk production and blood components of dairy cows
1996
Belibasakis, N.G. (Aristotelian Univ., Thessaloniki (Greece). Faculty of Veterinary Medicine) | Ambatzidis, P. | Tsirgogianni, D. | Kufidis, D.
Twenty multiparous Friesian cows, 80 to 110 days postpartum, were allotted to two groups of 10 cows according to calving date, lactation number, and daily milk production and were assigned randomly to one of two diets in a crossover design experiment. The control diet was 45 % corn silage (dry basis), 15 % whole cottonseeds, and 40% concentrate. The concentrate contained ground corn, wheat bran, soybean meal, and mineral-vitamin mix. Dry corn gluten feed was 20 % in the treatment diet, replacing an equal proportion of concentrate. The two diets contained similar quantities of crude protein, net energy for lactation, neutral detergent fiber and acid detergent fiber. The dry matter, net energy for lactation, and crude protein intakes were not significantly affected by the addition of dry corn gluten feed to diet. Milk production and milk composition were not affected by diet. No differences were observed in blood serum concentrations of glucose, total protein, albumin, urea, triglycerides, cholesterol, phospholipids, Na, K, Ca, P, Mg and Cl. Results of this study indicate that corn gluten feed will support similar levels of milk production and composition when used to replace a portion of the concentrate fed to lactating dairy cows.
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