Characterization of the carbohydrates of pea (Pisum sativum) hulls, carrot and cabbage using both colorimetric and gas-liquid chromatographic techniques permitted a detailed investigation into the extent of digestion of differing types of fibre. These digestion studies were greatly aided by the development of a rapid bioassay employing starved adult cockerels. Total collection of undigested res...

An improvement in avian semen cryopreservation is essential and has the potential to improve the cryo-gene banking efficiency. This study compared two cryopreservation methods (slow freezing and vitrification) and the effect of different thawing/warming temperatures (5 ̊C, 25 ̊C and 41 ̊C) on Venda cockerel’s spermatozoa. Semen samples from Venda cockerels were diluted with modified Kobidil extend...

• Atherosclerosis, the lipid-containing intimal lesion with marked fibrosis and calcification, morphologically similar to the human lesion, has been produced consistently in numerous animal species, mostly by feeding diets high in cholesterol and fat, with and without hormonal or other dietary manipulations. However, ulceration and thrombosis, the so-called "complicated" lesions so frequent in ...

I. A gas-liquid chromatographic method for the detection of phytosterols in tissues and excreta of birds was developed. The limitations of this method are discussed. 2. pand y-Sitosterol werc detected in the plasma of adult cockerels and in the plasma, intestinal wall, and liver of 4-week-old cockerels. The proportion of sitosterols in the total sterol absorbed appeared to be affected by the na...

Commercial layer-type, pullet, cockerel, and broiler chicken flocks infected with highly pathogenic avian influenza (HPAI) H5N1 in Nigeria between 2006 and 2008 were investigated for morbidity, mortality, and pathology. Of the one hundred and fifty-three (153) farms confirmed with HPAI infection, one hundred and twenty-seven (127) were layer-type farms, nine (9) were pullet and broiler farms ea...

Cotyledons and hulls were prepared from twelve varieties of field beans (Vicia faba L.). Adult cockerels were tube-fed either beans, cotyledons or hull diets containing high or low levels of protein. Metabolizable energy coefficients and starch digestibility coefficients were determined for beans, cotyledons and hull diets. Lipid digestibility coefficients from hull diets were also determined. ...

BACKGROUND & OBJECTIVES Selenium usually acts as an antioxidant at optimal levels in the body and increased levels are toxic. In this study an attempt was made to evaluate the effect of an optimum dose (0.14 mg) of selenium on histopathological changes in experimental hypercholesterolemia in cockerels. METHODS The effect of selenium (0.14 mg) was investigated on histopathological changes in f...

I . The effect of dietary protein level and supplementation with thyroxine and thiouracil on depletion of liver stores of vitamin A, on the percentage of liver vitamin A in the alcohol form and on the plasma level of vitamin A and protein has been studied in chicks. In an experiment with cockerels the relation was investigated between the vitamin A level of plasma and the electrophoretic patter...

s of papers 71 307 Broilers compared to Leghorns show an imbalance of the autonomic nervous system. W.J. Kuenzel*1 and R. Grossmann2, 1University of Maryland, College Park, MD/USA, 2Institute of Animal Science and Behavior, Celle,Germany. The following experiment tested the hypothesis that the parasympathetic nervous system (PNS) of broilers dominates over the sympathetic nervous system (SNS) a...