Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Jørgen B. Kjær"'
Autor:
Peter Sandøe, Henning Otte Hansen, Björn Forkman, Peter van Horne, Hans Houe, Ingrid C. de Jong, Jørgen B. Kjær, Søren Saxmose Nielsen, Clare Palmer, Helle Lottrup Halkjær Rhode, Tove Christensen
Publikováno v:
Poultry Science, Vol 101, Iss 5, Pp 101806- (2022)
ABSTRACT: Two kinds of initiatives exist to ensure welfare in broiler production: welfare legislation, where all broiler production in a country or region must comply with legally defined welfare standards; and market driven initiatives, where part o
Externí odkaz:
https://doaj.org/article/8a8d97e3719b4a9b9a8ca6869a429387
Publikováno v:
Poultry science. 85(8)
A total of 2,118 birds from 2 strains were allocated to 12 groups of 93 to 100 each in 2 time-separated replicates. The development of foot pad dermatitis (FPD) and hock burn (HB) were recorded weekly from d 8 to slaughter on a set sample of live ani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::463eeb168356dab3d9f768c51281929f
https://pubmed.ncbi.nlm.nih.gov/16903463
https://pubmed.ncbi.nlm.nih.gov/16903463
Publikováno v:
Su, G, Kjaer, J B & Sorensen, P 2006, ' Divergent selection on feather pecking behavior in laying hens has caused differences between lines in egg production, egg quality, and feed efficiency ', Poultry Science, vol. 85, no. 2, pp. 191-197 .
The correlated changes in egg production, egg quality, and feed efficiency due to selection for or against feather pecking (FP) were investigated by analyzing the data from an experiment including two divergent selection lines and a control line. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bba940a71c071219b09599933d6246f
https://pure.au.dk/portal/da/publications/divergent-selection-on-feather-pecking-behavior-in-laying-hens-has-caused-differences-between-lines-in-egg-production-egg-quality-and-feed-efficiency(51a23490-9bf1-11db-bbe4-000ea68e967b).html
https://pure.au.dk/portal/da/publications/divergent-selection-on-feather-pecking-behavior-in-laying-hens-has-caused-differences-between-lines-in-egg-production-egg-quality-and-feed-efficiency(51a23490-9bf1-11db-bbe4-000ea68e967b).html
Publikováno v:
Kjaer, J B, Sørensen, P & Su, G 2001, ' Divergent selection on feather pecking behaviour in laying hens ( Gallus gallus domesticus ) ', Applied Animal Behaviour Science, vol. 71, pp. 229-239 .
A selection experiment was initiated in 1996 in which selection for (HP line) and against (LP line) feather pecking was performed. The foundation stock was a White Leghorn layer strain established in 1970 and maintained since then as a random bred co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fa2e7206840499ff137fc4a5b43358e
https://pure.au.dk/portal/da/publications/divergent-selection-on-feather-pecking-behaviour-in-laying-hens-gallus-gallus-domesticus(5086be10-0d89-11db-aa3e-000ea68e967b).html
https://pure.au.dk/portal/da/publications/divergent-selection-on-feather-pecking-behaviour-in-laying-hens-gallus-gallus-domesticus(5086be10-0d89-11db-aa3e-000ea68e967b).html
Autor:
Poul Ejnar Sørensen, Jørgen B. Kjaer
Publikováno v:
British poultry science. 38(4)
1. Genetic variables of feather pecking (FP) behaviour in a 1993 commercial pure line of White Leghorns were estimated at the age of 6, 38 and 69 weeks. 2. Heritability estimates of performing FP were 0.05 +/- 0.06, 0.14* +/- 0.07 and 0.38** +/- 0.12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c439e1bdd3254513a5febea099316df
https://pubmed.ncbi.nlm.nih.gov/9347139
https://pubmed.ncbi.nlm.nih.gov/9347139