ASSAYING FEEDSTUFFS FOR AVAILABLE LYSINE CONTENT USING A FEATHER MEAL BASAL DIET
نویسندگان
چکیده
منابع مشابه
Development of a novel bioassay for determining the available lysine contents of foods and feedstuffs.
Lysine is an important indispensable amino acid, and describing the lysine content of a food or feedstuff provides useful information about nutritional value. However, when a food or feedstuff is subjected to heating the lysine present can be altered to nutritionally unavailable derivatives. These derivatives can revert back to lysine during the acid hydrolysis step used in amino acid analysis ...
متن کاملEarly postmolt performance of laying hens fed a low-protein corn molt diet supplemented with corn gluten meal, feather meal, methionine, and lysine.
Commercial White Leghorn hens (65, 63, or 70 wk of age in Experiments 1, 2, and 3, respectively) were induced molted by feed withdrawal until approximately 28% body weight was lost. All hens were then weighed, and seven replicate groups of 12 hens each were fed molt diets. In Experiment 1, three diets consisted of a corn basal diet (7.9% CP) or this diet supplemented with corn gluten meal (CGM)...
متن کاملEvaluation of valine requirement of the commercial layer using a corn-soybean meal basal diet.
An experiment was conducted with Hy-Line W-36 hens to evaluate the Val requirement in a corn-soybean meal diet. Eight experimental diets were fed with Val levels of 0.700, 0.665, 0.630, 0.595, 0.560, and 0.525%. A positive control (0.765% Val) was fed. Egg production (EP) was increased by addition of Val to 0.630%. Egg weight (EW) was increased by addition of Val to 0.655%. Broken-line regressi...
متن کاملReactive lysine content in commercially available pet foods*
The Maillard reaction can occur during processing of pet foods. During this reaction, the ε-amino group of lysine reacts with reducing sugars to become unavailable for metabolism. The aim of the present study was to determine the reactive lysine (RL; the remaining available lysine) to total lysine (TL) ratio of commercial pet foods and to evaluate whether RL levels meet minimal lysine requireme...
متن کاملWALTHAM SUPPLEMENT Reactive lysine content in commercially available pet foods*
The Maillard reaction can occur during processing of pet foods. During this reaction, the ε-amino group of lysine reacts with reducing sugars to become unavailable for metabolism. The aim of the present study was to determine the reactive lysine (RL; the remaining available lysine) to total lysine (TL) ratio of commercial pet foods and to evaluate whether RL levels meet minimal lysine requireme...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1971
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas71-022