Results 21 to 30 of about 184,937 (313)

Effect of light colour on egg production and egg contamination

Czech Journal of Animal Science, 2015
The objective of this study was to compare the performance of laying hens, quality of air in poultry house, and microbial contamination of eggshell in laying hens kept under blue, green, red, and yellow light colour in enriched cages.
J. Svobodová, E. Tůmová, E. Popelářová, D. Chodová   +3 more
doaj   +1 more source

Genetic and phenotypic parameter estimates for body weights and egg production in Horro chicken of Ethiopia

, 2010
A breeding program has been established in 2008 to improve productivity of Horro chicken, an indigenous population in the western highlands of Ethiopia. The pedigree descended from 26 sires and 260 dams.
van der Waaij, E.H., Waaij, E.H., van der, E. H. vander Waaij, Johan A. M. van Arendonk, Nigussie Dana, Dana, N., Arendonk, J.A.M., van, van Arendonk, J.A.M.   +7 more
core   +1 more source

Salmonella Biomapping of a Commercial Broiler Hatchery

Journal of Food Protection
Poultry-associated salmonellosis results in significant costs to poultry producers and consumers. Given the vertically integrated nature of the United States poultry industry, a better understanding of Salmonella ecology throughout all levels of poultry ...
Michael J. Rothrock, Jr., Walid G. Al Hakeem, Adelumola Oladeinde, Torey Looft, Xiang Li, Jean Y. Guard   +5 more
doaj   +1 more source

Performance of commercial laying hen genotypes on free range and organic farms in Switzerland, France and The Netherlands [PDF]

, 2012
1. A total of 257 farmers with free ranging laying hens (organic and conventional) in Switzerland, France and The Netherlands with 273 flocks were interviewed to determine the relationships between the genotype of the hens, management conditions and ...
van Niekerk, T.G.C.M., Bestman, Monique, Amsler, Zivile, Maurer, V., Leenstra, Ferry, Maurer, Veronika, Reuvekamp, Berry, van Niekerk, Thea, Zeltner, E., Zeltner, Esther, Galea, Fabien, Sambeek van, F., Leenstra, F.R., Galea, F., Bestman, M.W.P., Niekerk, T.G.C.M., van, van Sambeek, Frans, Reuvekamp, B.F.J.   +17 more
core   +1 more source

Egg production and egg quality characteristics of Yoruba, Sussex, and Goliath chickens and their crossbred progenies under humid tropical climate

Ovozoa: Journal of Animal Reproduction, 2023
Yoruba Ecotype Chicken (YEC) is characterized by hardiness, and better adaptation to prevailing tropical environment. However, its poor egg production has hindered its utilization for commercial production. Crossbreeding is a major tool used in improving
Abimbola Alice Ademola, Timothy Rotimi Fayeye, Adeyinka Oye Akintunde, Victoria O. Chimezie   +3 more
doaj   +1 more source

Does egg production represent adult female copepod growth? A call to account for body weight changes

, 2001
An almost universal assumption in determining growth in copepods is that, over short periods, an individual adult female's net growth is equal to the amount of material expelled as eggs.
Hirst, A. G., Hirst, AG, McKinnon, AD, McKinnon, A. D.   +3 more
core   +1 more source

The impact of egg handling and storage temperature on shell eggs stored for 27 weeks: Egg quality

Poultry Science
Eggs are an important trade commodity around the world. However, how eggs are handled/processed and stored differ by country. In the United States, under federal and state regulations, eggs are washed and stored at refrigerated temperatures.
J.S. Garcia, R.K. Gast, Q.D. Read, D.R. Jones   +3 more
doaj   +1 more source

Comparative production performance and egg quality of Kuzi Ducks (Anas platyrhynchos) and its crosses with Khaki Campbell

Indian Journal of Animal Sciences, 2023
Comparative performance of Kuzi ducks and its two crossbreds with Khaki Campbell, viz. Kuzi × Khaki Campbell (DK) and Khaki Campbell × Kuzi (KD) were carried out in respect to various production, egg weight, age at different production level and egg ...
M K PADHI, S C GIRI, S K SAHOO
doaj   +1 more source

A Novel Slope-Matrix-Graph Algorithm to Analyze Compositional Microbiome Data

Microorganisms
Networks are widely used to represent relationships between objects, including microorganisms within ecosystems, based on high-throughput sequencing data.
Meng Zhang, Xiang Li, Adelumola Oladeinde, Michael Rothrock, Anthony Pokoo-Aikins, Gregory Zock   +5 more
doaj   +1 more source

Spring production of Calanus finmarchicus at the Iceland-Scotland Ridge

, 2008
Distribution and reproduction activity of the calanoid copepod Calanus finmarchicus were studied in the waters between Scotland and Iceland in April 1997 during the expected time of the animals' ascent to surface waters following diapause.
European Union (Funder), Jónasdóttir, S, Ingvardsdottir, A., Christoffersen, A., Ingvarsdóttir, A, Jonasdottir, Sigrun, Richardson, K., , European Union (Funder), Heath, M.R., Jonasdottir, S., Heath, M R, Christoffersen, Alice, Richardson, Katherine, Heath, Michael R., Ingvarsdottir, Anna, Christoffersen, A, Ingvarsdottir, A.   +16 more
core   +1 more source