Search results
Results From The WOW.Com Content Network
The fast growth of the Cobb 500 is associated with an increased rate of various health problems. Compared to slower-growing chickens, they have a higher rate of sudden death syndrome, [12] hock burns, [13] Tibial dyschondroplasia, [14] weaker disease resistance and antibody response, [15] bone deformations, and problems with walking.
Modern commercial broilers, for example, Cornish crosses and Cornish-Rocks, [citation needed] are artificially selected and bred for large-scale, efficient meat production. They are noted for having very fast growth rates, a high feed conversion ratio, and low levels of activity. Modern commercial broilers are bred to reach a slaughter-weight ...
One indication of the effect of broilers' rapid growth rate on welfare is a comparison of the usual mortality rate for standard broiler chickens (1% per week) with that for slower-growing broiler chickens (0.25% per week) and with young laying hens (0.14% per week); the mortality rate of the fast-growing broilers is seven times the rate of ...
Poultry workers experience substantially higher rates of illness and injury than manufacturing workers do on average. For 2013, there were an estimated 1.59 cases of occupation-related illness per 100 full-time U.S. meat and poultry workers, compared to 0.36 for manufacturing workers overall. [ 100 ]
As of 2011 in the US, broiler chickens has an FCR of 1.6 based on body weight gain, and mature in 39 days. [25] At around the same time the FCR based on weight gain for broilers in Brazil was 1.8. [25] The global average in 2013 is around 2.0 for weight gain (live weight) and 2.8 for slaughtered meat (carcass weight). [26]
Poultry found to be sick with avian flu need to be culled, and their eggs also need to be destroyed. MORE: Long Island farm forced to euthanize more than 100,000 ducks after bird flu detected
Broiler breeder farms raise parent stock which produce fertilized eggs. A broiler hatching egg is never sold at stores and is not meant for human consumption. [9] The males and females are separate genetic lines or breeds, so that each line can be selected for optimal traits for productivity in either females or males, rather than a single line in which a compromise is reached between female ...
Runting-stunting syndrome in broilers is a syndrome described in broilers since the 1940s, but often with specific etiological appellations (viral enteritis, malabsorption syndrome, brittle bone disease, infectious pro ventriculitis, helicopter disease and pale bird syndrome).