Changes in the total live weight of all animals are not taken into account.FAO uses the first concept of meat production in the construction of its food balance sheets and for related indicators. Production is expressed in terms of live weight. Derived from indigenous productions follows: indigenous production plus (or minus) the meat equivalent of the change in the stock numbers during the reference period. The biological production concept covers indigenous animals that are either slaughtered or exported live, plus net additions to the stock during the reference period. As imports/exports of live animals are recorded by FAO in numbers, not weight, animal type and size are of significance. Derived from meat production as follows: production from slaughtered animals plus the meat equivalent of all animals exported alive, minus the meat equivalent of all animals imported alive. Production from the slaughter of indigenous animals plus exports of live indigenous animals during the reference period. Production from all animals, of both indigenous and foreign origin, that are slaughtered within national boundaries. the live weight less the blood, feathers and skin.FAO data relate to dressed carcass weight for livestock and, wherever possible, ready-to- cook weight for poultry.Among individual countries, one of the following three concepts issued to measure production:A. Inedible parts generally include hides and skins (except in the case of pigs), as well as hoofs and stomach contents.Meat production data for minor animals (poultry, rabbits, etc.) are reported in one of the following three ways: ready-to-cook weight (giblets are sometimes included and sometimes excluded) eviscerated weight (including the feet and head) or dressed weight, i.e. Slaughter fats (the unrendered fats that fall in the course of dressing the carcasses) are recorded as either edible or inedible according to country practice. Edible parts generally include edible offals (head or head meat, tongue, brains, heart, liver, spleen, stomach or tripes and, in a few countries, other parts such as feet, throat and lungs. The concept varies widely from country to country and according to the various species of livestock. Dressed carcass weight: weight minus all parts - edible and inedible - that are removed in dressing the carcass. Killed weight: the live weight less the uncollected blood lost during slaughter. Live weight: the weight of the animal immediately before slaughter. All FAO annual production data refer to total production.Country statistics on meat production adhere to one or more of the following concepts: 1. As reported by individual countries, meat production data may refer either to commercial production (meat entering marketing channels), inspected production (from animals slaughtered under sanitary inspection), or total production (the total of the above- mentioned categories plus slaughter for personal consumption). In production data, meat is normally reported inclusive of bone and exclusive of meat that is unfit for human consumption. FAO defines meat as the flesh of animals used for food.
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