Results 31 to 40 of about 3,958 (201)

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

Gut capacity of broiler breeder hens

open access: yesBritish Poultry Science, 2021
1. Broiler breeders are subjected to qualitative or quantitative feed restrictions to prevent obesity, which causes major health and welfare problems. Diluting their feed by adding inert or low nutrient, bulky materials can reduce obesity, but the capacity of the gut needs to be determined to apply this strategy successfully.
Nascimento, M. Q.   +6 more
openaire   +4 more sources

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

SERO-EPIDEMIOLOGICAL STUDY OF CHRONIC RESPIRATORY DISEASE IN CHICKEN FLOCKS IN SYRIA [PDF]

open access: yesAssiut Veterinary Medical Journal, 2015
It was collected 2990 blood samples from various ages of chicken of broiler, layer and breeder flocks distributed from different regions of SAR, in order to detect Mycoplasma galisepticum that used in Rapid sero- agglutination test and indirect ELISA ...
EYAD ALNAJJAR   +2 more
doaj   +1 more source

Development of a multivalent adjuvanted inactivated vaccine against variant arthrotropic avian reoviruses

open access: yesFrontiers in Veterinary Science, 2023
Variant avian reoviruses (ARVs) are economically important emerging pathogens of poultry, which mainly affect young broiler chickens and cause significant production losses.
Lisanework E. Ayalew   +8 more
doaj   +1 more source

Restricting Growth of Broiler Breeder Pullets

open access: yesPoultry Science, 1969
Abstract Restricting rate of gain and delaying sexual maturity of pullets are important considerations in producing a profitable broiler breeder flock. Most of the existing programs for rearing broiler pullets are based on some type of feed restriction, or the use of diets designed to limit nutrient intake starting around 8 to 10 weeks of age ...
J D, Summers, W F, Pepper, E T, Moran
openaire   +2 more sources

Fasting and Refeeding Mediated Phospholipid Remodeling Plays an Important Role in Improving Meat Quality of Aged Laying Hens

open access: yesAnimal Research and One Health, EarlyView.
ABSTRACT This study explored fasting‐induced physiological remodeling effects on meat quality in aged laying hens. Fasting for 15 days (F15) significantly reduced abdominal fat, intermuscular fat width, subcutaneous fat thickness, and liver index versus pre‐fasting (F0) (p < 0.05), which recovered post‐refeeding.
Xiaoran Zhang   +8 more
wiley   +1 more source

Welfare and performance of slower growing broiler breeders during rearing

open access: yesPoultry Science, 2021
: Current commercial strains of broiler breeders can only achieve an optimal reproductive performance under feed restriction. However, chronic feed restriction in broiler breeders is a welfare concern because of physiological and behavioral signs of ...
Aitor Arrazola, Stephanie Torrey
doaj   +1 more source

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