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Walking behaviour and spatial use of broiler chickens

100%

Aydin A.

International Letters of Natural Sciences

2016

tom 54

Modern broiler chickens are genetically selected for reaching higher weights in shorter life spans. In addition to this, they are raised in crowded housing conditions with less opportunity for movement. Understanding movement patterns, migration and use of space is essential in determining welfare of the birds in commercial farms. In this study, migration behaviour of broiler chickens in semi-commercial farms of 1800 chickens was studied. Observations were repeated in six growth periods each on 12 chickens once a day during their growth period of 42 days. It was seen that the activity of broilers was not decreasing during the growth period. Travelled distances of the chickens in total were not reduced in the last 3 weeks of their growth period (p > 0.05 in 89% of the observed birds, Mann-Whitney U test). Chickens preferred to be in the zones next to the wall farthest to the entrance of the house. The observed birds did not restrict themselves only around the feeders and the drinkers but used the whole surface area available during the whole growth period. The results of the study seem to be encouraging in achieving welfare of broiler chickens even in commercialised houses with high stocking density. Reported mobility of chickens is important for their survival and has therefore considerable impact on efficient production on farms.

The application of poultry behaviour responses on heat stress to improve heating and ventilation systems efficiency

100%

Kuczynski T.

Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering

2002

tom 05

nr 1

Poultry is particularly vulnerable to heat stress conditions. Birds have no possibility to loose the heat by sweating, thus losses by convection and respiration remain the only mechanisms for taking the heat out of them. Whereas there is common consensus among scientists and growers on optimum ambient temperature range for well feathered 4-6 weeks old broilers, there are considerable differences in evaluation of potential negative effects of their exceeding in terms of production result, health status or animal welfare.

The effects of a perch, dust bath and nest box in furnished cages on the welfare of laying hens

70%

Barnett J. L., Cronin G. M., Tauson R., Downing J. A., Janardhana V., Lowenthal J. W., Butler K. L.

Animal Science Papers and Reports. Supplement

2005

tom 23

nr 1

Ograniczanie wyników

1 Animal Science Papers and Reports. Supplement

1 Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering

1 International Letters of Natural Sciences

1 Aydin A.

1 Barnett J. L.

1 Butler K. L.

1 Cronin G. M.

1 Downing J. A.

1 Janardhana V.

1 Kuczynski T.

1 Lowenthal J. W.

1 Tauson R.

1 2016

1 2005

1 2002

Wyniki wyszukiwania

Walking behaviour and spatial use of broiler chickens

The application of poultry behaviour responses on heat stress to improve heating and ventilation systems efficiency

The effects of a perch, dust bath and nest box in furnished cages on the welfare of laying hens