Some of the growth parameters of Indian carp brooder (Catla catla) in earthen pond in Khouzestan province
Subject Areas : Fishery
S. Ayati Behbahani
1
(Aquaculture Dep., Islamic Azad University, Khouzestan Science and Research Branch)
H. Hosseinzadeh Sahafi
2
(Iranian Fisheries Research Organization, Tehran)
M. Khodadadi
3
(Aquaculture Dep., Islamic Azad University, Ahvaz Branch)
G. Eskandari
4
(South Iran Aquaculture Research Center, Ahvaz)
Keywords: growth parameters, Indian major carp Catla, male and female, Physicochemical parameters, Khouzestan,
Abstract :
In this one year study, the growth parameters of Indian carp, broodstock Catla catla such as: the percentage weight gain (WG), Average Daily Growth (ADG), Specific Growth Rate (SGR), condition factor (K), length and weight of biometrics and also, some environmental parameters during the 1389 to 1390 were measured seasonally. For this, 16 brood stock Catla fish, with a sex ratio of (1:1) which was almost equal, from three ponds of 1700 m2, in which they were released, were used. Ponds before stocking, were enriched by manure. Also during the period, were enriched with chemical fertilizer. Broodstock were also provided with concentrate diet (Byza fars Company) every morning and evening. The relationship between length and weight were obtained, for the females b=3/21 and for males b =2/93. This indicates that such growth is isometric. In this relationship, the female and male respectively, equivalent to y = 0.007x3.2165 and y = 0.0197x2.9377. Growth parameters for the total period was as follows: (WG) {females: 114/27, male: 211/61}; (ADG) {females: 3/08 male: 3/68}, (SGR) {females: 0/09, male: 0/2} and Obesity factor in the broodstock was between 1/54 and 1/76 respectively. On the whole, according to prevailing environmental conditions and fish physiology, growth indicator species is acceptable. Physico-chemical factors also revealed a normal process. The results obtained showed that the adaptability of carp Catla, with the climate condition of the province (long periods of heat) is possible.