Influence of nest site on the behaviour of laying hens
Contributor(s):: Lentfer, Tine L., Gebhardt-Henrich, Sabine G., Fröhlich, Ernst K. F., von Borell, Eberhard
Low rates of nest acceptance by laying hens are a major problem in commercial poultry farming operations with aviary systems, leading to costly manual collection and cleaning of mislaid eggs. To gain knowledge about factors affecting nest use, laying hens’ preferences for different nest locations...
The Human-Animal Relationship in Australian Caged Laying Hens
| Contributor(s):: Lauren E. Edwards, Grahame J. Coleman, Kym L. Butler, Paul H. Hemsworth
Studies on farm animals have shown relationships between stockperson attitudes and behaviour and farm animal fear, stress and productivity. This study investigated how the avoidance behaviour of Australian commercial caged laying hens may be related to stockperson behaviour, albumen...
Pen trial of estrogen-induced conditioned food aversion to eggs in raccoons (Procyon lotor)
| Contributor(s):: Dueser, Raymond D., Martin, Joel D., Moncrief, Nancy D.
Aversive conditioning is a promising but unproven non-lethal approach to reducing mammalian depredation on the eggs of ground-nesting birds, terrapins and sea turtles. This research tested the efficacy of oral estrogen concealed in a bland carrier as an aversive agent for wild-caught raccoons...
Influence of egg oiling on colony presence of ring-billed gulls
| Contributor(s):: DeVault, Travis L., Schmidt, Paige M., Pogmore, Fred E., Gobeille, John, Belant, Jerrold L., Seamans, Thomas W.
Do artificial nests simulate nest success of greater sage-grouse?
| Contributor(s):: Dinkins, Jonathan B., Conover, Michael R., Mabray, Scott T.
Farmer attitudes to injurious pecking in laying hens and to potential control strategies
| Contributor(s):: Palczynski, L. J., Buller, H., Lambton, S. L., Weeks, C. A.
Farmers' recognition of health and welfare problems, and their responses to related intervention programmes, such as those to reduce injurious pecking in hens, directly influence the welfare of animals in their care. Changing those responses can be achieved through a re-positioning of social...
Tree cover and injurious feather-pecking in commercial flocks of free-range laying hens: a follow up
| Contributor(s):: Bright, A., Gill, R., Willings, T. H.
Injurious feather-pecking in non-cage systems is a serious economic and welfare concern for the egg-producing industry. This study presents results from data of over 1,000 flocks from producers who supplied free-range eggs to McDonald's Restaurants Ltd UK between 2008 and 2013. These producers...
Consumer attitudes to injurious pecking in free-range egg production
| Contributor(s):: Bennett, R. M., Jones, P. J., Nicol, C. J., Tranter, R. B., Weeks, C. A.
Free-range egg producers face continuing problems from injurious pecking (IP) which has financial consequences for farmers and poor welfare implications for birds. Beak-trimming has been practised for many years to limit the damage caused by IP, but with the UK Government giving notification that...
Mate choice, maternal investment and implications for ostrich welfare in a farming environment
| Contributor(s):: Bonato, M., Cherry, M. I., Cloete, S. W. P.
At present, the ostrich industry is inefficient, on account of being characterised by inadequate egg production, high embryo mortality, poor chick survival and suboptimal growth rates. However, as ostrich farming commenced only in the mid 19th century in South Africa, farmed ostriches have had a...
Effects of variation in nest curtain design on pre-laying behaviour of domestic hens
| Contributor(s):: Ringgenberg, N., Frohlich, E. K. F., Harlander-Matauschek, A., Toscano, M. J., Wurbel, H., Roth, B. A.
Laying hens in loose-housing systems select a nest daily in which to lay their eggs among many identical looking nests, they often prefer corner nests. We investigated whether heterogeneity in nest curtain appearance - via colours and symbols - would influence nest selection and result in an even...
Nest choice in laying hens: effects of nest partitions and social status
Nest choice in loose-housed laying hens is influenced by nest characteristics, position and social factors. We examined the relative preference of laying hens for two group-nests differing in the presence or absence of a partition in the middle of the nest and whether this was influenced by...
An ethological approach to determining housing requirements of gamebirds in raised laying units
| Contributor(s):: Matheson, S. M., Donbavand, J., Sandilands, V., Pennycott, T., Turner, S. P.
Each year, the UK rears around 20-30 million pheasants and 3-6 million red-legged partridges for shooting purposes. However, welfare organisations and some members of the gamebird industry itself have raised concerns about the use of raised laying units for breeding gamebirds. Although the...
The ticking clock: addressing farm animal welfare in emerging countries
| Contributor(s):: Keyserlingk, M. A. G. von, Hotzel, M. J.
Over the last decade many emerging economies, and in particular Brazil, have established themselves as major players in global food animal production. Within these countries much of the increase in food animal production has been achieved by the adoption of intensive housing systems similar to...
Zoonoses, public health, and the backyard poultry flock
| Contributor(s):: Grunkemeyer, V. L.
Operationalizing ethics in food choice decisions
| Contributor(s):: Hepting, D. H., Jaffe, J., Maciag, T.
There is a large gap between attitude and action when it comes to consumer purchases of ethical food. Amongst the various aspects of this gap, this paper focuses on the difficulty in knowing enough about the various dimensions of food production, distribution and consumption to make an ethical...
The welfare of laying hens in conventional cages and alternative systems: first steps towards a quantitative comparison
| Contributor(s):: Freire, R., Cowling, A.
What is the relationship between level of infection and 'sickness behaviour' in cattle?
| Contributor(s):: Szyszka, O., Kyriazakis, I.
Eastern bluebirds eject brown-headed cowbird eggs
| Contributor(s):: Brian D . Peer, Lyndon R. Hawkins, Edwin P. Steinke, Patricia Blair Bollinger, Eric K. Bollinger
The relationship between the Brownheaded Cowbird (Molothrus ater) and its cavitynesting hosts has received little attention because of the assumption that cowbirds rarely parasitize these hosts. We tested the Eastern Bluebird (Sialia sialis), a host that is sometimes heavily parasitized by...
Mar 29 2013
Easter Egg Hunt for Dogs - National Service Dogs
A non-intrusive method of assessing plumage condition in commercial flocks of laying hens
| Contributor(s):: Bright, A., Jones, T. A., Dawkins, M. S.