ISO 3974:1977 pdf download – Definitions of.living animals for slaughter – Ovines
1.1 sucking lamb : A lamb which has not been weaned, and weighing not more than 15 kg.
1.2 slaughter lamb : A lamb weighing more than 15 kg. NOTE – Traditionally,despite the lack of precise criteria applicable to the living animal, slaughter lambs are subdivided into milk-fed lambs or unweaned lambs, and grass-fed lambs (“grazers”) or lambs fattened after weaning. The term “grass-fed lamb” should be qualified by the term “castrated” or “entire”, if appropriate.
2 young ovine’: A castrated or entire male ovine animal, or a female ovine animal which has not yet lambed, presented for slaughter and having at most two pairs of permanent incisor teeth. (See figure 2.) NOTE – In this category the following are distinguished : young ewe, young ram, and castrated male young ovine (young wether).
3 adult ovine : A castrated or entire male ovine animal, or a female ovine animal, presented for slaughter, of which at least one of the teeth of the third pair of permanent incisors has erupted, or a female ovine which has lambed.
3.1 ram : An entire male adult ovine or a male adult ovine castrated after puberty.
3.2 ewe : A female adult ovine which has lambed.
3.3 maiden ewe : A female adult ovine which has not lambed and is not showing any visible signs of pregnancy.
3.4 wether : A male adult ovine castrated before puberty.