Modern strains of broiler chickens are selected for fast growth and are marketed anywhere from 36 to 49 days after a 21-day incubational period. For a viable healthy chick, all the necessary nutrients required for growth and development must be provided by the hen through the fertilized egg. The current...
The objectives of the current study were 1) to evaluate the nutritional composition of chicken breast meat labelled as organic and non-organic, and 2) to determine the effect of microalgae and methionine supplementation on meat quality, the incidence of white striping, and muscle pathology in broilers. Two experiments were conducted...
Flax seed is a rich source of alpha-linolenic acid (ALA). Feeding broiler birds flax seed can increase n-3 fatty acids (FA) in meat tissues and can increase human intake of n-3 FA. However, non-starch polysaccharides (NSP) in flax seed decrease digestibility of lipids and proteins and have a negative impact...
This study investigated the impact of organic chromium (Cr) supplementation and flaxseed on live performance, carcass yield, serum metabolites, muscle lipid profile, histopathological aspects, and meat quality parameters. Ninety (n=90), day-old Cobb chicks were fed a corn-soybean meal-based diet containing 0% flaxseed (Control), 10% flaxseed (Diet 1) and Diet 1...
Mycotoxins are food-borne toxins produced by molds which are commonly found on animal feeds of economic significance. Toxic doses of these compounds vary widely across livestock species, and even within a species when considered across all stages of development and production. This variation is due to the wide range of...
The objectives of the current study were to 1) investigate the effect a high-docosahexaenoic acid (C22:6 n-3, DHA) microalgae product (MAL), and choline dosage in diets containing MAL, on egg production performance, physical egg quality, and nutritional parameters, and 2) determine whether choline dosage influences hepatic lipid metabolism of...
In broiler chickens, hepatic lipid metabolism plays a significant role in whole body and muscle fatty acid (FA) incorporation. Flax seed is a rich source of α-linolenic acid and can be used to increase n-3 FA in poultry meat. Previous studies have shown that flax seed in combination with carbohydrase...
During the 21 day incubation period, the fertile egg provides nutrients such as fatty acids for energy and polyunsaturated fatty acids (PUFA) for membrane synthesis to the developing chick. The hypothesis tested in the present study is that the type of PUFA fed to the breeder hen can alter tissue...
Three experiments were conducted in broiler hens to study the influence of dietary n-3 polyunsaturated fatty acids (PUFA) on egg quality, antioxidant status in progeny, and eicosanoid production in tissue. The objective of experiment 1 was to determine the effect of hen age and dietary n-3 PUFA on egg quality...
Hatchability of broiler eggs has not increased over the last twenty years. Increasing hatchability with in ovo technology may be possible through feeding metabolic modulators to the developing embryo. Exogenous fatty acids and antioxidants provided during incubation may enhance polyunsaturated fatty acid, lipid, and antioxidant status of the chicken embryo....
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1A version of this chapter has been published previously (Schaal, T., and G. Cherian.
2007