Results 101 to 110 of about 2,222 (233)

Calcium Requirements of the Turkey Breeder Hen

Poultry Science, 1967
Abstract LOW EGG production, fertility and hatchability in turkey breeder hens has stimulated researchers in recent years to attempt to find ways of increasing the reproductive potential of the turkey hen. The effects that dietary calcium has on chicken egg production and hatchability have been well established, but little research has been conducted
L.G. Arends, D.L. Miller, S.L. Balloun
openaire   +1 more source

Response of Japanese Breeder Quails to Varying Dietary Protein Levels in the Tropics [PDF]

, 2015
A three months feeding trial was conducted to assess the effects of feeding varying levels of dietary protein on productive performance, egg quality characteristics and hatchability using 930 six weeks breeders quails.
Payi, E, Shamaki, D, Musa, U, Lombin, LH, Karsin, P, Bawa, GS   +5 more
core   +1 more source

A portrait of air quality in Canadian hatching egg houses: Seasonal variations and health impacts on workers and broiler breeder birds

Journal of Applied Poultry Research
Summary: Air quality in poultry barns affects the respiratory health of both workers and animals. While data exist for broiler and laying hen operations, broiler breeder facilities are less studied.
Valérie Létourneau, Mahsa Baghdadi, Kim Robitaille, Nathan Dumont-Leblond, Florent Rossi, Geneviève Dion, Caroline Duchaine, Marie-Lou Gaucher   +7 more
doaj   +1 more source

Prevalence of antibodies against chicken anaemia virus (CAV) in broiler breeders in Southern Brazil Prevalência de anticorpos contra o vírus da anemia das galinhas (CAV) em matrizes de corte no Sul do Brasil

Pesquisa Veterinária Brasileira, 2004
Chicks infected during the first two weeks of life with chicken anaemia virus (CAV) manifest clinical disease that can be avoided if the breeder hens transfer enough antibodies to their progeny.
Cláudio W. Canal, Danilo José Ferreira, Marisa Macagnan, Luiz C. B. Fallavena, Hamilton L. S. Moraes, Vera B. Wald   +5 more
doaj   +1 more source

Genetic Evaluation of Pure Line Laying Hens Based on Crossover Testing Data From Simulated Populations

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Commercial laying hen breeding programs aim to maximize the performance of crossbred animals. However, selection is usually based on data from pure lines raised in controlled nucleus environments, which may not fully predict the yields under commercial conditions.
M. Sánchez‐Diaz, N. Ibáñez‐Escriche, D. López‐Carbonell, D. Cavero, L. Varona   +4 more
wiley   +1 more source

Battery Eggs Sale and Production in the ACT [PDF]

The research report, Battery Eggs Sale and Production in the ACT, was released in November 1998. The report contains the findings of the Productivity Commission's commissioned study. The report examines the effectiveness of the ACT legislation banning of
Anonymous
core   +4 more sources

Data mining as a hatchery process evaluation tool

Scientia Agricola, 2019
The hatchery is one of the most important segments of the poultry chain, and generates an abundance of data, which, when analyzed, allow for identifying critical points of the process .
Daniela Regina Klein, Marcos Martinez do Vale, Mariana Fernandes Ribas da Silva, Micheli Faccin Kuhn, Tatiane Branco, Mauricio Portella dos Santos   +5 more
doaj   +1 more source

First Report of ‘Soft Flesh’ Induced by the Parasite Kudoa thyrsites (Myxosporea) in Commercial Codfish From Norway

Journal of Fish Diseases, Volume 48, Issue 4, April 2025.
ABSTRACT Kudoa thyrsites is a myxosporean parasite that infects the skeletal muscle of various teleost fish species globally. Severe infections lead to ‘soft flesh’ in fish fillets, resulting in food spoilage and subsequent discard. While K. thyrsites has previously been identified in migratory Atlantic mackerel in the northern Northeast Atlantic Ocean,
Lucilla Giulietti, Arne Levsen, Miguel Bao, Egil Karlsbakk, Julia E. Storesund, Hui‐Shan Tung, Paolo Cipriani   +6 more
wiley   +1 more source

Efeitos da umidade relativa do ar na incubadora e da idade da matriz leve sobre o rendimento da incubação Effects of relative air humidity in the hatchery and breeder hen age on the incubation yield

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2008
Avaliaram-se os efeitos da umidade relativa do ar na incubadora (URI) e da idade da matriz leve sobre o rendimento de incubação, sobre o peso absoluto do coração e do saco vitelino e sobre a relação desses dois órgãos com o peso do pinto ao nascer. Foram
V.M. Barbosa, S.V. Cançado, N.C. Baião, A.M.Q. Lana, L.J.C. Lara, M.R. Souza   +5 more
doaj   +1 more source

Aflatoxicosis in Layer and Breeder Hens

, 2011
During the past few decades there has been a steady increase in global production of poultry meat and eggs. Although the high nutritive value of eggs and poultry meat has resulted in increasing demand, food quality and safety factors are becoming increasingly significant in determining market value of poultry products.
openaire   +2 more sources