In the domestic hen phenylacetic acid is excreted conjugated mainly with ornithine (Totani, 1910), but in the pigeon it is excreted conjugated with taurine and glycine (James et al., 1972). This difference between the hen and pigeon has now been further investigated with several arylacetic acids. The compounds used were 14C-carboxy-labelled phenylacetic acid, 4-chloroand 4-nitrophenylacetic aci...

It is well known that in the hen the egg-white protein ovotransferrin (conalbumin) and the serum protein transferrin are very similar in structure and iron-binding properties (for review see Beam & Parker, 1966). Since it is evident that for the eggwhite protein the name 'ovotransferrin' (Komatsu & Feeney, 1967; Azari & Baugh, 1967) is more informative than the classical name 'conalbumin', it i...

to determine the effect of hen age and storage condition on egg quality, fresh eggs were sampled from two commercial flocks of white leghorn hens at 28 and 68 weeks of age. half of sampled eggs from each flock were stored at 6°c and the other half was stored at room temperature. fifteen eggs were randomly sampled from each treatment following collection and at 5-day intervals to 30 days of stor...

in order to find out suitable organic fertilizers for elimination of chemical fertilizers usage and the optimum sowing date in pot marigold cultivation, an experiment was conducted in the agricultural research station, ferdowsi university of mashhad, iran, in 2007 growing season. for this purpose a split plot experiment based on completely randomized block design with three replications was use...

The relationship between nutrition and welfare is usually considered to be a direct result of supplying the hen with adequate quantities feed water. This simple notion freedom from hunger thirst belies fact that nutrients play pivotal role in body’s response challenges whether they relate ambient temperature, gastrointestinal health, pathogen exposure, metabolic disorders, or social mental stre...

Authors: Grigorios Spirakis, School of Business and Economics, University of Peloponnese, Tripolis 22100, Greece; Antonios Sarantidis, Visiting Researcher, Forecasting Laboratory, Bangor Business School, Hen Coleg, College Road, Bangor, LL57 2DG, United Kingdom; Konstantinos Nikolopoulos, Bangor University, Business School, Hen Coleg, College Road, Bangor, LL57 2DG, United Kingdom, Kostas@forta...

an experiment was conducted to evaluate the effects of different levels of mineral and vitamin premix on performance and egg traits of laying hens from 37 to 49 weeks of age. two hundred and forty laying hens (hy-line w-36 strain) were randomly assigned to 5 dietary treatments of four replicates each with 12 hens per replicate). the levels of mineral and vitamin premixes in the experiment were ...

an experiment was carried out to compare the effects of laying hen’s diet supplemented with inorganic and different organic sources of selenium (se) on quality and oxidative stability of eggs during storage. a total of 81, (35-week old) laying hens of lohmann lsl-white were assigned to cages in a completely randomized design with 9 groups of treatment and 3 replicates of 3 birds. hens in each g...

Peptidoglycan from Neisseria gonorrhoeae RD5 was completely degraded by hen egg white lysozyme and was not extensively O-acetylated. In contrast, peptidoglycans from gonococcal strains FA19 and FA102 (a penicillin-resistant mutant derived from FA19), were markedly resistant to digestion by hen egg white lysozyme and were extensively O-acetylated.

Feather pecking and cannibalism in farm-kept laying hens are damaging behaviors both in terms of animal welfare and economic loss, and a major challenge in modern poultry farming. Both rearing with a foster hen and genetic selection have been demonstrated to reduce feather pecking in laying hens. We examined the effects of rearing with a foster hen, genetic selection for low mortality from cann...