Similarly, in RA-deficient avian embryos or VAD (obtained from birds fed on a retinoid-deficient defined diet [59]), dorsal pancreas is lost but not ventral pancreas or liver [7], [48], [59].
From d 1 to 40, birds fed CPD had a higher (P < 0.01) body weight (BW) than those fed MD.
Birds fed CPD had a lower (P < 0.01) feed:gain ratio (F G) during the starter phase than those fed MD.
Birds fed WGM-supplemented diets had a higher lymphocyte (P < 0.05) levels but lower (P < 0.05) cholesterol and triglyceride concentration compared with those fed CON diet.
During lay, all birds were fed a standard breeder diet and followed a standard growth pattern.
Birds were fed a SBGFN-unsupplemented corn-soybean meal basal diet (control) or the basal diet supplemented with 60, 120, 180 or 240 mg SBGFN kg−1 from SBGFN-Zn for 42 d.
Nestlings, in contrast to adult birds, are fed a diet of larger items such as caterpillars and grasshoppers.
All birds were fed a commercial chicken feed (Eagle milling, AZ) ad libitum for the duration of the study.
The birds were fed a commercial layer mash diet with free access to water and feed at 20 °C with a daily light period of 16 h.
Apparently, this mechanism to maintain homeostasis became ineffective when the birds are fed a diet containing an extremely high level of cholesterol.
