Abstract
<p>The most important factor in speeding up fish depends on the food given. The feed given was in the <br />form of artificial feed (pellets) because of the practicality of its availability. However, commercially <br />made feed was of course more expensive, and can pollute the air compared to natural feed which was <br />easy and can be in the surrounding environment. For this reason, it was necessary to look for natural <br />feed as an effective and efficient alternative feed to ripen the gonads of male and female swordtail. <br />The research used a completely randomized design with 4 treatments and 3 repetitions and arranged <br />randomly. Treatment by giving different natural food to the broodstock swordtail: treatment A <br />(commercial pellets), B (Daphnia/Moina), C (blood worms) and D (mosquito larvae feed). Each <br />broodstock treatment used was 27 females and 9 males (ratio 1: 3). The results of water quality <br />measurements of all treatments with an average DO 4 mg/L, temperature 26 to 27<br />o<br />C, pH 7-8 and 30 <br />mg/L hardness, thus showing the water quality during the research, the water condition was suitable <br />for the maintenance of broodstock of swordtail, so that it supported growth. and breed of swordtail <br />to produce tillers. The results showed that the highest average birth rate of swordtail broodstock <br />produced in treatment D were 141 fish followed by treatment B 125 fish, then treatment C of 117 fish. <br />and the lowest was in treatment A with a birth rate of 102 fish.</p>
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