Results 31 to 40 of about 15,944 (241)

Housing and management of broiler breeders and turkey breeders.

open access: yes, 2012
AbstractThis chapter describes the housing and management of broiler breeders and turkey breeders in Europe. The majority of broiler breeders in Europe are the standard, fast growing genotype, but 18-20% of the broiler breeders are dwarf parental females that produce standard and alternative (medium or slow growing) broilers.
de Jong, I.C., Swalander, M.
openaire   +2 more sources

Influence of age of broiler breeders and storage duration on egg quality and blastoderm of Marshall broiler breeders

open access: yesJournal of Applied Poultry Research, 2020
Summary: The aim of the study was to examine the effects of age of broiler breeders and storage duration on quality traits and blastoderm of eggs obtained from Marshall broiler breeders.
V.A. Uyanga   +4 more
doaj   +1 more source

Effects of form of dietary trace mineral premix on fertility and hatchability of broiler breeder hens and post-hatch performance and carcass parameters of their progenies [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2019
The present study was conducted to investigate the effects of dietary inorganic and/or organic based trace mineral premix in full or half doses in broiler breeders" diet on hatchability, fertility, post hatch performance, and carcass parameters of ...
Seyyednaeim SABER   +5 more
doaj   +1 more source

The Effect of Dietary Energy and Protein Levels on Production in Breeding Female Ostriches. [PDF]

open access: yes, 2003
1. In a study spanning two breeding seasons, we assessed the effect of different dietary energy and protein levels on body mass, body condition, and egg production of female ostriches. 2.
Brand, T.S., Brand, Z., Brown, Chris
core   +2 more sources

Effect of Broiler Breeder Age on the Intestinal Mucosa Development of the Embryos at 20 Days of Incubation

open access: yesBrazilian Journal of Poultry Science
This study investigated the effect of broiler breeder age on the morphological development of the small intestine broiler embryos (villus height, crypt depth, microvillus height, and villus density) at 20 day of incubation.
A Maiorka   +5 more
doaj   +1 more source

Environmental Enrichment for Broiler Breeders: An Undeveloped Field

open access: yesFrontiers in Veterinary Science, 2017
Welfare problems, such as hunger, frustration, aggression, and abnormal sexual behavior, are commonly found in broiler breeder production. To prevent or reduce these welfare problems, it has been suggested to provide stimulating enriched environments. We
Anja B. Riber   +3 more
doaj   +1 more source

A Dead Broiler Inspection System for Large-Scale Breeding Farms Based on Deep Learning

open access: yesAgriculture, 2022
Stacked cage is the main breeding method of the large-scale farm in China. In broiler farms, dead broiler inspection is a routine task in the breeding process.
Hongyun Hao   +5 more
doaj   +1 more source

Seroprevalence and prevalence of Infectious Bronchitis Virus in broilers, laying hens and broiler breeders in Spain

open access: yesPoultry Science, 2022
: Infectious Bronchitis Virus (IBV) is one of the most important viral diseases which causes important economic losses in poultry industry. This study aimed to assess the seroprevalence, prevalence, and variants of IBV in broilers, layers, and broiler ...
Verónica Cortés   +4 more
doaj   +1 more source

Sodium Requirement for Broiler Breeder Hens

open access: yesPoultry Science, 1995
Two experiments were conducted with Arbor Acres hens to determine their Na requirement. Sodium chloride was added to a corn-soybean meal diet to furnish daily intakes of 35, 65, 95, 125, and 150 mg per hen in Experiment 1. The 150 mg level was replaced with 180 mg in Experiment 2. The hens were maintained in floor pens with wood shavings used as litter.
R H, Harms   +3 more
openaire   +2 more sources

Efeito da classificação dos ovos sobre o rendimento de incubação e os pesos do pinto e do saco vitelino Effect of egg classification prior to setting on hatchability, embryonic mortality and chick and yolk sac weights

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2008
Dois experimentos foram realizados para avaliar, no primeiro, o efeito da idade da matriz sobre a uniformidade do peso de 1080 ovos e gemas e, no segundo, a influência da classificação de 9260 ovos sobre a eclodibilidade, a mortalidade embrionária e os ...
J.S.R. Rocha   +5 more
doaj   +1 more source

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