A large amount of research, primarily in mammals, has defined to a great extent the
pleiotropic effects of the IGF system on growth, development, and intermediary metabolism …

Insulin-like growth factor-I and-II are important multifunctional polypeptides that interact with
membrane-bound receptors as well as soluble binding proteins. The biological actions of …

Two experiments, one using 0+ the other 1+ rainbow trout, were conducted to investigate the
effect of prolonged starvation on plasma growth hormone levels. The results from both …

This study characterizes the responses, particularly diurnal variations, of thyroid hormones
(TH)[3, 5, 3′-triiodothyronine (T 3), thyroxine (T 4), and T 3: T 4 ratio (T 3/T 4)] of Arbor …

Three hundred twenty Cobb 500 broiler breeder pullets at 21 wk of age were selected from a
flock fed according to Cobb Breeder Management Guide specifications. One hundred sixty …

An experiment was conducted to study the interrelationships between dietary fat and protein
levels in the regulation of lipid metabolism in the broiler chicken. Birds were fed diets …

With a continually expanding market for poultry meat products, increased production
demands of as much as 50% by the Year 2000 have been predicted. Indications already …

Male broiler chickens growing from 7 to 35d were fed on a diet containing 150g crude
protein (N× 6· 25)/kg diet supplemented with lysine to equal that in diets containing 166, 183 …

SUMMARY A previous study has shown that a limited increase of lysine (Lys) and
methionine (Met) in broiler diets may improve feed conversion ratio (FCR), BW, carcass …

There have been significant strides in our knowledge of the effects of toxicants on birds. This
communication presents a brief review of avian toxicology with emphasis on effects of …