Interaction of wheat micronization and cultivar on its feeding value for broilers

Three experiments were conducted to investigate the interaction between micronization and cultivar of wheat on grain chemical composition and feeding value for chickens. Micronized whole grain feeding was evaluated in one experiment using inclusion levels of 10 and 50% for starter and grower diets, respectively. Dietary enzyme was used in two other experiments to study its interaction with micronization and genotype of wheat. Wheat cultivars Genesis, Kyle, and Katepwa were micronized at 100°C for 50 s and incorporated into broiler diets. Micronization improved overall feed efficiency, but did not always increase body weight. When feeding whole grain to birds, micronization improved feed efficiency from 21 to 42 d and 0 to 42 d, but did not affect final body weight. Micronization of wheat cultivars reduced early growth rate of all birds, regardless of wheat form in the diets. Micronization did not impact AME and digesta viscosity. Cultivar Kyle had a higher dietary AME and a lower digesta viscosity, and re...

[1]  H. Classen,et al.  Effects of micronization, tempering, and flaking on the chemical characteristics of wheat and its feeding value for broiler chicks , 2003 .

[2]  F. Silversides,et al.  Prediction of the performance of broiler chicks from apparent metabolizable energy and protein digestibility values obtained using a broiler chick bioassay , 1999 .

[3]  F. Silversides,et al.  Effect of cultivar and environment on the feeding value of Western Canadian wheat and barley samples with and without enzyme supplementation , 1998 .

[4]  W. Sauer,et al.  Effect of micronization on energy, starch and amino acid digestibility in hulless barley for young pigs , 1998 .

[5]  W. Guenter,et al.  The enhancement of the nutritive value of peas for broiler chickens: an evaluation of micronization and dehulling processes. , 1996, Poultry science.

[6]  H. Classen,et al.  Live performance and health of broiler chickens fed diets diluted with whole or crumbled wheat , 1995 .

[7]  M. Fielden,et al.  Sequential feeding of whole wheat to growing broiler chickens. , 1995, British poultry science.

[8]  D. Boros,et al.  The nutritive value of barley, rye, wheat and corn for young chicks as affected by use of a Trichoderma reesei enzyme preparation , 1994 .

[9]  H. Classen,et al.  An in vitro assay for prediction of broiler intestinal viscosity and growth when fed rye-based diets in the presence of exogenous enzymes. , 1993, Poultry science.

[10]  H. Classen,et al.  Reduction of intestinal viscosity through manipulation of dietary rye and pentosanase concentration is effected through changes in the carbohydrate composition of the intestinal aqueous phase and results in improved growth rate and food conversion efficiency of broiler chicks. , 1992, The Journal of nutrition.

[11]  M. Choct,et al.  The inhibition of nutrient digestion by wheat pentosans , 1992, British Journal of Nutrition.

[12]  J. Rupnow,et al.  Influence of Infrared (Micronization) Treatment on the Nutritional Value of Corn and Low- and High-Tannin Sorghum , 1991 .

[13]  P. Thacker,et al.  Heat pretreatment as a means of improving the response to dietary pentosanase in chicks fed rye , 1991 .

[14]  H. Classen,et al.  Photoperiodic effects on performance and leg abnormalities in broiler chickens. , 1989, Poultry science.

[15]  H. Englyst.  Classification and measurement of plant polysaccharides , 1989 .

[16]  H. Englyst,et al.  Colorimetric method for routine measurement of dietary fibre as non-starch polysaccharides. A comparison with gas-liquid chromatography , 1987 .

[17]  James H. Torrie,et al.  Principles and procedures of statistics: a biometrical approach (2nd ed) , 1980 .