Replacement Of Corn Silage With Corn Gluten Feed For Lactating Dairy Cows
(Alves, Ana Carolina do Nascimento)
Corn silage is one of the major feedstuffs used in dairy farms but itshigh cost has encouraged farmers to look after alternative feeds. Corngluten feed has been used as a source of energy, protein and effectivefiber in dairy rations. This study was carried out at the Departamentode Zootecnia, Escola Superior de Agricultura ?Luiz de Queiroz?, in afree-stall facility, with 30 mid-lactation Holsteins multiparous cows,averaging 25 to 30 kg milk/day and 654 kg body weight. The objectivesof this study were to evaluate the effects of replacing 0, 8 and 16%corn silage dry matter with dried corn gluten feed. Experimental dietswere formulated by the NRC, 2001 and were isonitrogenous andisoenergetic. cows fed both corn gluten feed supplemented dietsproduced more milk and 3.5% FCM than control animals. Milk compositionand plasma urea and glucose were the same among treatments. Under theconditions of this trial, corn gluten feed was an effective replacementfor corn silage, both from the nutritional and economical stand point.
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