### HYBRIDIZATION of GOLD FISH (Carassius auratus auratus) with TAWES (Barbonymus gonionutus)

#### Abstract

This research was conducted from April-December 2014 in Hatchery and

Breeding Laboratory, Faculty of Fisheries and Marine Sciences, University of

Riau. The objective of this research was to evaluate the intergeneric hybridization

between gold fish (Carassius auratus auratus) with silver barb fish (Barbonymus

gonionotus) by comparing the fertilization rate, hatching rate, survival rate in four

days (SR-4), survival rate for 30 days (SR-30), extra weight and value heterosis (

hybrid vigor ) between fish larvae results hybridization with fish control. The

method is applicable in the experimental methods, where spawning artificial was

conducted by the use of eggs and fish sperm of a comet (Carassius auratus

auratus) and silver barb (Barbonymus gonionotus) that has been injected using

ovaprim with a dose of 0,5ml / kg.

The highest percentage of fertilization is marriage ♂ K x ♀ K (88,8%),

follow by ♀ K x ♂ T (85,505%), ♀ T x ♂ T (36,65%) ♀ T x ♂ K 0%. The highest

persenatage hatching is a control that is ♂ T x ♀ K (94.285%), which followed ♀

K x ♂ K (74,655%), ♀ T x ♂ T (54,72%) and ♀ T x ♂ K (0%). The highest

percentage of survival rate 30 days in sequence is ♀ K x ♂ T (44,97%), ♀ K x ♂

K (41,985%) and ♀ T x ♂ T (6,15%). The highest weight added sequentially is

the larvae of spawning results ♀ K x ♂ K (0,513 g), ♀ T x ♂ T (0,343 g) dan ♀ T

x ♂ K (0,328 g). All values of heterosis is negative except at the heterosis B but

not the absolute weight.

Key words : hibrydization, gold fish, silver bard

Breeding Laboratory, Faculty of Fisheries and Marine Sciences, University of

Riau. The objective of this research was to evaluate the intergeneric hybridization

between gold fish (Carassius auratus auratus) with silver barb fish (Barbonymus

gonionotus) by comparing the fertilization rate, hatching rate, survival rate in four

days (SR-4), survival rate for 30 days (SR-30), extra weight and value heterosis (

hybrid vigor ) between fish larvae results hybridization with fish control. The

method is applicable in the experimental methods, where spawning artificial was

conducted by the use of eggs and fish sperm of a comet (Carassius auratus

auratus) and silver barb (Barbonymus gonionotus) that has been injected using

ovaprim with a dose of 0,5ml / kg.

The highest percentage of fertilization is marriage ♂ K x ♀ K (88,8%),

follow by ♀ K x ♂ T (85,505%), ♀ T x ♂ T (36,65%) ♀ T x ♂ K 0%. The highest

persenatage hatching is a control that is ♂ T x ♀ K (94.285%), which followed ♀

K x ♂ K (74,655%), ♀ T x ♂ T (54,72%) and ♀ T x ♂ K (0%). The highest

percentage of survival rate 30 days in sequence is ♀ K x ♂ T (44,97%), ♀ K x ♂

K (41,985%) and ♀ T x ♂ T (6,15%). The highest weight added sequentially is

the larvae of spawning results ♀ K x ♂ K (0,513 g), ♀ T x ♂ T (0,343 g) dan ♀ T

x ♂ K (0,328 g). All values of heterosis is negative except at the heterosis B but

not the absolute weight.

Key words : hibrydization, gold fish, silver bard

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