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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] For hens used in egg production in the US, as of 2011 the FCR was about 2, with each hen laying about 330 eggs per year. [25]
For example, the dress weight for chickens and other fowl is closer to 75% of the live weight, [3] which is significantly higher than that of cattle, which can be from 50-70% depending on breed and methods used. [2] To compare, a 250-pound pig will typically have a dressed weight of 180 pounds and a retail cuts weight of 144 pounds.
Feedlots producing live cattle for slaughter will typically purchase 500–850 pounds (230–390 kg) feeder cattle calves and feed to grow the animals into 850–1,400 pounds (390–640 kg) cattle. [3] [2] Backgrounding operations will typically purchase 300–600 pounds (140–270 kg) feeder cattle calves and feed to grow the animals into 650 ...
Live weight gains that allow lambs to reach about 36 kg (79 lb) (17 kg (37 lb) - 18 kg (39 lb) carcase) in 100 days has been obtained from first cross animals grown in the Mallee region. Local experience indicates that carcasses with fat scores [ 3 ] of 2 to 3 are easily obtained under these conditions.
Likewise for the fat class, where 1 is Low, 2 is Slight, 3 is Average, 4 is High, and 5 is Very High. A typical classification would be R4L where the R refers to a "Good” carcass with an “Average” to “High” covering of fat according to the MLC. The grader is usually an independent classifier who also monitors carcass dressing ...
Modern commercial broilers are bred to reach a slaughter-weight of about 2 kg (4.4 lb) in only 5 to 7 weeks. [6] [13] [14] As a consequence, the behaviour and physiology of broilers reared for meat are those of immature birds, rather than adults. Slow growing free-range and organic strains have been developed which reach slaughter-weight at 12 ...
The birds are large-framed, hardy and fast-growing – they may reach a body-weight of more than 3.5 kg (8 lb) in seven weeks. They have a high feed conversion ratio, are calm-tempered and fertile, and their eggs have a high rate of hatchability. [2]: 93 The white feathers make the carcass easy to clean after being plucked. [17]: 193
Typical stocking densities in Europe range between about 22–42 kg/m 2 (5–9 lb/sq ft) or between about 11 to 25 birds per square metre (1.0 to 2.3/sq ft). [3] There is a reduction of feed intake and reduced growth rate when stocking density exceeds approximately 30 kg/m 2 (6 lb/sq ft) under deep litter conditions.