Essay of reproduction induced in Ariopsis seemanni (Günther 1864), using human hormone chorionic gonadotropin (hhCG) and pituitary extract of tent (PET

Ensayo de reproducción inducida en ariopsis seemanni (günther 1864), utilizando hormona gonadotropina coriónica humana (hgc) y extracto pituitario de carpa (epc)

Fish early age (juveniles) of tete sea catfish sea catfish known as "little sharks" are of high commercial demand as ornamental fish in the local and international markets. The specimens obtained in Colombia are collected directly from the natural resource, without having proposed a strategy to reduce the direct effect that this practice brings about the process of recruitment of juveniles to the fishing stock. Induced breeding is presented as an alternative in the production of fingerlings and juveniles for the species. The aim of this study was to evaluate the effect of four (4) hormonal treatments on the induced breeding of the species. The research was conducted at the station of the National Authority for Aquaculture and Fisheries (AUNAP) in Bahia Malaga. The effect of two types of hormones on spawning in twenty-four pairs of adult fish Ariopsis seemanni was evaluated. These fish were obtained from the natural environment; weights averaging were recorded 263.6±42.2 and 174.4±30.4 grams for females and males respectively. Hormonal treatments used: T₁: EPC 5 mg/kg body weight; T₂: EPC 7 mg/kg body weight; T₃: HGC 2000 IU/kg body weight and T₄: HGC 1000 IU/kg body weight. They spawning not obtained in any of the induced females. Dissections were performed in females of each treatment and two egg sacks were found in every female ovarian each bag containing about 10-14 eggs. These eggs had an approximate size of 13 and 14 millimeters in diameter.