Lactational anoestrus in the sow.
D000821:Animal Feed; D000818:Animals; D004971:Estrus; D005260:Female; D005838:Genotype; D007774:Lactation; D008297:Male; D011247:Pregnancy; D013552:Swine / Q000502:physiology*; D013997:Time Factors; D014886:Weaning