HEN PERFORMANCE, EGG QUALITY, AND THE SENSORY EVALUATION OF EGGS FROM SCWL HENS FED DIETARY FLAX

被引:90
作者
CASTON, LJ [1 ]
SQUIRES, EJ [1 ]
LEESON, S [1 ]
机构
[1] UNIV GUELPH,DEPT ANIM & POULTRY SCI,GUELPH N1G 2W1,ONTARIO,CANADA
关键词
HEN PERFORMANCE; EGG QUALITY; DIETARY FLAX;
D O I
10.4141/cjas94-047
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Two hundred and twenty-five 19-wk-old Single Comb White Leghorn pullets of a commercial strain were fed diets containing either 0, 10 or 20% ground flax seed. Birds fed 20% dietary flax were smaller and ate more feed (P < 0.01). Hen performance in terms of egg production and egg-shell deformation was unaffected by dietary flax throughout the trial. Egg weight followed this trend until period 12, when control-fed hens laid significant larger eggs (P < 0.01). The metabolizable energy of diets containing 10 and 20% ground flax was significantly less than that of the control com-soybean diet (P < 0.01). Malondialdehyde levels in the liver of birds fed 20% dietary flax were moderately elevated, although this was not indicative of serious lipid peroxidation. Percentage liver fat was significantly lower in birds fed all levels of dietary flax (P < 0.05). There was a significant increase of N-3 fatty acids, and particularly linolenic acid, in the livers of birds fed all levels of dietary flax. The data from taste-panel studies involving fresh and stored eggs were somewhat inconclusive, although in general there was a slight perception of off-flavour in eggs from flax-fed birds.
引用
收藏
页码:347 / 353
页数:7
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