title: Spawning behaviour of an air-breathing catfish Heteropneustes fossilis (Bloch).
abstract: Spawning behavior of H. fossilis was studied by breeding the fish in laboratory through hypophysation using pituitary glands of the Indian major carps (Catla catla and Labeo rohita) at a dose of about 15 mg/100 g body weight of the recipient. The spawning activity started about 6 to 10 hr after the administration of pituitary injection. The activity lasted 2 to 6 hr in various experiments. During this period, intermittent mating acts were observed, the average rate of mating being once every 2 to 3 min in the initial stages and 5 to 10 min or even longer in the later ones.
authors.affiliation: Department of Zoology, University of Bihar, Muzaffarpur, Bihar, India.
authors.forename: N K
authors.initials: NK
authors.lastname: Thakur
authors.forename: S A
authors.initials: SA
authors.lastname: Nasar
authors.forename: M
authors.initials: M
authors.lastname: Sheel
mesh_terms: D000818:Animals; D002347:Carps; D002397:Catfishes / Q000502:physiology*; D005260:Female; D005398:Fisheries; D007194:India; D008297:Male; D010907:Pituitary Hormones / Q000502:physiology*; D012726:Sexual Behavior, Animal / Q000502:physiology*
chemical_list: D010907:Pituitary Hormones