ESTIMASI HERITABILITAS DAN RESPONS SELEKSI IKAN NILA HITAM (Oreochromis niloticus) DI TAMBAK
نویسندگان
چکیده
منابع مشابه
KETAHANAN BENIH IKAN NILA GIFT (Oreochromis niloticus LINN.) DARI HASIL INDUK YANG DIBERI VAKSIN TERHADAP INFEKSI BUATAN Streptococcus iniae Resistance of Fry from Vaccinated Mother of Gift Tilapia {Oreochromis niloticus Linn.) to Artificial Infection of Streptococcus iniae
An investigation was made to study the efficacy of dosage and time of administration in maternal vaccination. Mothers of nile tilapia were vaccinated by intraperitoneal injection with adjuvant-heat killed Streptococcus iniae at one and two weeks after spawning at the dosages of 0,2 ml/kg and 0,4 ml/kg body weight. Unvaccinated mothers were used as control. Agglutinating antibody titers in the b...
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This study aimed to assess genotoxicity in Nile tilapia (Oreochromis niloticus) erythrocytes after exposure to a sub-lethal concentration of 10 mg L(-1) di-n-butyl phthalate (DBP) for 24 and 96 h. The results showed that mean MN frequencies in both DBP and ethyl methane-sulfonate (EMS, positive control for MN bioassay) groups were significantly different (p<0.01) with respect to control and sol...
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The Nile tilapia (Oreochromis niloticus) is an important species in aquaculture and an excellent model system for laboratory studies. Functional genetic analysis using this species has been difficult because existing methods for producing transgenics are inefficient. Here we show that the Tol2 transposon system can be used to create transgenic tilapia with high efficiency. We constructed a line...
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Reproductive fish behavior is affected by male-female interactions that stimulate physiological responses such as hormonal release and gonad development. During male-female interactions, visual and chemical communication can modulate fish reproduction. The aim of the present study was to test the effect of visual and chemical male-female interaction on the gonad development and reproductive beh...
متن کاملFeed-based vaccination regime against streptococcosis in red tilapia, Oreochromis niloticus x Oreochromis mossambicus
BACKGROUND Streptococcosis is an important disease of tilapia throughout the world. In Malaysia, streptococcosis outbreak was commonly reported during the 3-month period of high water temperature between April and July. This study describes the duration of protection following single and double booster dose regimes against streptococcosis in tilapia using a feed-based vaccine containing formali...
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ژورنال
عنوان ژورنال: BERITA BIOLOGI
سال: 2019
ISSN: 2337-8751,0126-1754
DOI: 10.14203/beritabiologi.v18i1.3540