Results 11 to 20 of about 3,958 (201)
: Current commercial strains of broiler breeders display reproductive dysregulation when fed to satiety, but they can achieve optimal hatching egg production under feed restriction.
Aitor Arrazola +2 more
doaj +1 more source
Effects of different selenium sources and levels on antioxidant status in broiler breeders [PDF]
Objective This study was conducted with the objectives to examine the impacts of inorganic selenium (Se) and different types and levels of organic selenium on the serum and tissues Se status and antioxidant capacity in broiler breeders.
K. X. Li +5 more
doaj +1 more source
Carcass Characteristics, Digestive System Traits of Spent Broiler Breeder and Dual-Purpose Hens
Raising dual-purpose hens for meat is believed to bring more economic benefits to farmers selling products directly to consumers. The aim of the study was to determine the differences between the carcass features and the digestive system of multipurpose ...
Karol Włodarczyk +3 more
doaj +1 more source
Avian pathogenic Escherichia coli (APEC) causes colibacillosis in poultry, a leading cause of poultry mortality worldwide. It is crucial to control APEC in broiler breeders as it is vertically transferred to progeny via eggs.
Jiddu Joseph +5 more
doaj +1 more source
The aim of this work was to evaluate the effect of broiler breeders' age and yeast wall (YW) levels on broilers' performance and macrophage activitys. The experiment consisted in a completely randomized design and a 2 X 5 factorial arrangement and two ...
Suelen Regina Ferreira +4 more
doaj +1 more source
This experiment was conducted to investigate the effects of different supplementation levels of palygorskite and probiotics complex (Pal-Pro) on laying performance, hatching performance, egg quality, plasma antioxidative status, and immune response of ...
Yuying Deng +6 more
doaj +1 more source
Effect of dietary probiotics on the semen traits and antioxidative activity of male broiler breeders
This study aimed to investigate the effect of probiotics on the intestinal morphology, intestinal microflora, oxidative activity (biological antioxidant potential), and semen quality of male broiler breeders.
Takio Inatomi, Konosuke Otomaru
doaj +1 more source
Restricted Feeding of Broiler Breeders
Two experiments were conducted to compare the effects of various feed restriction programs during the growing and laying periods on body weight, egg production, fertility, and hatchability. In the first experiment, Cobb color-sexed broiler breeders were fed one of three grower programs (full feed, skip-a-day, or low protein) from 8 to 24 weeks of age ...
H R, Wilson, D R, Ingram, R H, Harms
openaire +2 more sources
Sodium Chloride for Broiler Breeders
Two experiments, each of 224 days duration, were conducted with Cobb broiler breeders, 32 weeks of age, to determine their response to supplemental dietary sodium chloride levels ranging from .12 to .48% in a corn-soybean meal diet. Average hen-day egg production, daily feed intake, feed required per dozen eggs, and egg specific gravity were not ...
B L, Damron, H R, Wilson, R H, Harms
openaire +2 more sources
Two factorial completely randomized design trials 2×2 and 2×2×2 were conducted to evaluate the effect of a blend of essential oils and organic acids (BiacidTM) in broiler breeder diets at two levels, two dietary non-starch polysaccharides (NSPs) levels ...
Saeed Toosi +4 more
doaj +1 more source

