Breeding and Larval Rearing of Asian Catfish, Clarias batrachus (Linnaeus, 1758) on Live and Artificial Feed

Abstract

A study was conducted to observe the breeding and larval rearing of Asian Catfish, Clarias batrachus fed with live and/or artificial feed for 21 days in an indoor hatchery. The brooders of C. batrachus (Av. wt of female 160 ± 10.5 g; Av. wt of male 120 ± 6.75 g) were procured from outside ponds and stocked in a pond near the experiment site 2-months prior to spawning. The fishes were successfully induced bred using ovaprim @ 1.0-2.0 ml/kg body weight (bw) to females and 0.5-1.0 ml/kg bw to males. Fertilization, hatching and survival percentages at spawn stage were respectively recorded 70.6 -72.8, 60.7 -55.3 and 54.3 -56.2. After yolk-sac absorption, fry of three age groups 7, 14 and 21 days were subjected to feed trial using Artemia nauplii followed by laboratory made feed for 21 days. Weekly sampling indicated that higher age groups constantly maintained higher lengths and weights with highest survival in the age group of 14-days old fry and SGR in 7-days old. The quality of hatchery water was recorded for temperature 29 ± 1°C, pH 7.2 ± 0.2, DO 7.1 ± 0.3 mgL -1 and total alkalinity 132 ± 4.0 mgL -1 respectively.

Comparison of reproductive performance of Clarias batrachus (Linnaeus, 1758) collected from three Indian rivers

“…1) of magur from Godavari was highest (p<0.05) (69.33±1.99); whereas that of Narmada was the lowest (46.67±1.79). Fertilisation rate of 60-75% and 70-72% were reported in magur by Rao and Jankiram (1991) and Srivastava et al (2012) respectively. Hatching rate (Fig.…”

“…2) for magur from Godavari was found significantly higher (p<0.05) (59±2.09), while magur from Narmada had lowest values (38.67±0.75). Rao and Jankiram (1991) reported a hatching rate in the range of 30-45%, while Srivastava et al (2012) and Sharma et al (2010) (12 th day) produced from magur collected from different rivers is given in Fig. 3.…”

“…Carp pituitary extract was prepared according to Bhowmick (1990) and female brooders were given intra-muscular injection @50 mg kg -1 body weight (Goswami and Sarma, 1997;Sahoo et al, 2013). Synthetic inducing agent ovaprim (M/s Syndel Laboratories, Canada) was administered at a dose of 1 ml kg -1 of body weight of female (Srivastava et al, 2012). Males were given half the dose of respective inducing agent.…”

Length–weight relationship and growth performance of different life stages of hatchery‐produced magur,Clarias magur(Hamilton, 1822)

“…The temperature and dissolved oxygen values are in the acceptable range for the magur hatchery operation (Sahoo et al, ; Sahoo et al, ; Sahoo et al) and rearing of C. batrachus (Srivastava et al, ). The pH values were within the optimal limit for all the life stages for magur culture (Sahoo et al; Sahoo et al; (Srivastava et al, ; Sahoo et al, ). Moreover, the total alkalinity, total hardness, ammonia‐nitrogen and nitrite‐nitrogen were within the desirable range for the magur culture (Srivastava et al, ).…”

Induction of Spontaneous Captive Spawning, Embryonic Development and Larval Rearing in Mystus cavasius

“…However this technique is skill intensive and the success rates depend on several factors (Zonneveld et al, 1988;Manickam and Joy, 1989;Sahoo et al, 2008;Srivastava et al, 2012;Agbebi et al, 2013;Dhara and Saha, 2013).…”