Prevalence and factors associated with it, of birds dead on arrival at the slaughterhouse and other rejection conditions in broiler chickens.

1. Standardised data on husbandry were recorded for a flock of birds in one house on each of 150 broiler farms in the UK during the 4 d prior to slaughter. 2.

Leg disorders in broiler chickens: prevalence, risk factors and prevention.

Broiler (meat) chickens have been subjected to intense genetic selection. In the past 50 years, broiler growth rates have increased by over 300% (from 25 g per day to 100 g per day). There is growing societal concern that many broiler chickens have impaired locomotion or are even unable to walk.

Factors affecting the prevalence of foot pad dermatitis, hock burn and breast burn in broiler chicken.

1. Standardised data on flock husbandry were recorded on 149 broiler farms during the 4 d prior to slaughter. 2.

Fin erosion on rainbow trout on commercial trout farms in the United Kingdom.

Fish weighing less than 30 g and more than 100 g were sampled from 38 rearing units on 10 commercial farms growing rainbow trout for the table market. A fin index was calculated for each of the eight rayed fins on 949 trout by dividing their length by the standard length of the fish. There was a large range in the indices of all eight fins.

Preliminary study to examine the utility of using foot burn or hock burn to assess aspects of housing conditions for broiler chicken.

1. Eleven broiler chicken farms, representing 4 production system types, were visited during the last 5 d of the flock cycle: bird and flock details were recorded. Litter friability was assessed at 9 sites within the house, atmospheric ammonia was measured at three sites and bird cleanliness was assessed on a numerical rating scale.