Paper Details

The present study was conducted to find out impact of photoperiod on breeding, growth, maturationand colour change of live bearer ornamental fishes(molly, guppy, platy and swordtail).CFL bulb used assource of artificial light, maintained in each setups-I to IV for observing breeding and survival of brooder andin the setups-A to D for growth and maturation of youngones, each for three months duration. During studyperiod, the average mean length, the average mean weight ,survival rate percent, specific growth rate percentand average daily gain percent were observed. Water quality analysis were done throughout study period andphysico-chemical parameters such as temperature, pH, dissolved oxygen, nitrite, ammonia, phosphate andtotal hardness were measured and maintained using standard water analysis kits.Siphoning done weekly.Feeding were done using freeze dried live feed (tubifex and bloodworm)and dried pelleted feed(optimum andtokyu) ,two times( morning and evening) for brooder and four times for youngones in a day with timing 7a.m.,11a.m.,3p.m. and 7p.m. During study period, it was observed that the increasement in growth found from firstmonth to third months. Also increased in the length and the weight of youngones in each setups during thesame time period vary and there were no similarity. The maximum specific growth rate percent was found insetup-D(0.37) and minimum in setup-B(0.1166).The maximum average daily gain percent was found maximumin setup-D(0.2466) and minimum in setup-B(0.0777).The maturity of youngones visible at the end of thirdmonths. No colour change was observed on brooder and youngones. The aim of present study was to find outwhether photoperiods(CFL bulb,15watts,04hrs.) was best suited for breeding, survival, growth and maturationof these fishes or not, inorder to have a healthy crops,which going to make our country compete with worldmarket as well boost our national income,prestige and also act as strong weapon in eradicating unemploymentproblem.rn

Swati, “Effect of photoperiod (CFL Bulb,15Watts;04 hrs.) on breeding and growth performance of live bearer ornamental fishes”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 9, Issue 8, pp. 9-14, August 2022.