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One nest for every seven hens (or 1 m 2 of nest space for every 120 hens if group nests are used) Litter (e.g. wood shavings) covering at least one-third of the floor surface, providing at least 250 cm 2 of littered area per hen; 15 cm of perching space per hen. [7] In addition to these requirements, free-range systems must also provide the ...
A furnished cage, sometimes called enriched cage, colony cage or modified cage, is a type of cage used in poultry farming for egg laying hens.Furnished cages have been designed to overcome some of the welfare concerns of battery cages (also called 'conventional' or 'traditional cages') whilst retaining their economic and husbandry advantages, and also provide some of the welfare advantages ...
One study showed that 24.6 percent of hens from battery cages had recent keel fractures whereas hens in furnished cages, barn and free range had 3.6 percent, 1.2 percent and 1.3 percent respectively. However, hens from battery cages experienced fewer old breaks (17.7%) compared to hens in barn (69.1%), free-range (59.8%) and furnished cages (31 ...
A nest box, also spelled nestbox, is a man-made enclosure provided for animals to nest in. Nest boxes are most frequently utilized for birds, in which case they are also called birdhouses or a birdbox/bird box, but some mammals such as bats may also use them. Placing nestboxes or roosting boxes may also be used to help maintain populations of ...
Free Range Egg & Poultry Australia (FREPA) standards are those in which most supermarket brands of free range chicken meat are accredited under. These standards require indoor stocking densities of up to 30 kg/m 2 indoors (about 15 birds per square metre), and beak trimming is not permitted.
German organic egg with only the EU egg code. Significant differences cover feed, medication, and animal welfare. Organic hens are fed organic feed; it is prohibited to feed animal byproducts or GMO crops – which is not disallowed in free range environments; no antibiotics allowed except in emergencies (in free range, it is up to the farmer, but the same levels of antibiotics as conventional ...
The regular feed conversion ratio, i.e. output fish mass divided by total feed mass. The conversion ratio only taking into account the fish-based component of fish feed, called the FIFO ratio (or Fish In – Fish Out ratio). FIFO is fish in (the mass of harvested fish used to feed farmed fish) divided by fish out (mass of the resulting farmed ...
Vent sexing in Wenchang, Hainan, China (2014). Vent sexing, also known simply as venting, involves squeezing the feces out of the chick, which opens up the chick's anal vent (called a cloaca) slightly, allowing the chicken sexer to see if the chick has a small "bump", which would indicate that the chick is a male.