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  • Công bố khoa học và công nghệ Việt Nam

68.49.45

Võ Điều(1), Nguyễn Đức Thành, Hồ Thị Thu Hoài(2)

Nghiên cứu đặc điểm sinh học sinh sản cá sỉnh gai (Onychostoma laticeps Gunther, 1986) ở Thừa Thiên - Huế

Research on characteristics of biological spawning of Onychostoma laticeps Gunther, 1986 in Thua Thien - Hue province

Nông nghiệp & Phát triển nông thôn

2012

15

77-81

1859-4581

Onychostoma laticeps has a high economic value in Thua Thien - Hue province. After two years of research, reproductive characteristics of Onychostoma laticeps are identified that the male and female rates in the natural group is 2.1:1; the maturation rate is a highest from November to May and changed fluctuates from 0.44 percent to 8.1 percent for females and from 0.22 percent to 3.24 percent for males. The average of reproductive rate is 6308 eggs/female and the relative reproductive rate is 22.9 eggs/female. Age of Onychostoma laticeps hatchery at age of 1', which is equivalent of body length is 20.5 cm long and weighed around 90 g/head. From November to next May for sprawing season of Onychostoma laticeps in Thua Thien - Hue province.

TTKHCNQG, CVv201