SWL-Fisheries and Marine
https://repository.unri.ac.id/handle/123456789/2824
2024-03-28T09:22:15ZPengaruh Kadar Protein Pakan Terhadap Penampilan Pertumbuhan, Kematangan Gonad Dan Fekunditas Ikan Katung (Pristolepis Grooti Bleeker) Matang Gonad Pertama
https://repository.unri.ac.id/handle/123456789/9189
Pengaruh Kadar Protein Pakan Terhadap Penampilan Pertumbuhan, Kematangan Gonad Dan Fekunditas Ikan Katung (Pristolepis Grooti Bleeker) Matang Gonad Pertama
Alawi, Hamdan; Aryani, Netti; Asiah, Nur
The effect of three protein levels of commercial diet on the growth performance, gonad maturation and fecundity of first maturity of Indonesian leaffish (Pritolepis grooti) was conducted in 54 liters recirculation aquaria system for 10 months rearing period. Eight-week-old artificial spawned Indonesian leaffish katung (Pristolepis grooti Bleeker)) fry with an average weight (SD) of 0.560(0.116) g were fed 5% BW three times a day with commercial diets 18, 28 and 38% Protein. Fish fed on 38% protein diet showed better growth and feed conversion ratio than those fed on 28 and 18% diets. Males matured earlier than females: the firstmature males were recorded when they were 5 months old, whereas the females matured after 6 month rearing period. The mean percentage of mature female fish rose with increasing feed protein level. It was also found that the percentage of mature fish rose with the increasing fish age and size. More than 70% males matured at the age of 6 months in all diet. After 10 months rearing period, the percentage of matured female fed on 38% protein was 100% while those fed on 16% protein was 25%. Smallest size at spawning of males and females was 8.5 cm (23 g) and 13 cm (65 g), respectively, and dietary protein levels influenced the size of fish at first maturity. It was found that the protein level significantly effected the gonado somatic index (GSI). Fecundity increased with increasing dietary protein level. The relative fecundity (eggs /g or cm female) was higher at the higher dietary protein level.
2018-02-13T00:00:00ZMorphometric Characteristics of Asian Catfish, Hemibagrus wyckii (Bleeker, 1858) (Bagridae), from the Riau Province of Indonesia
https://repository.unri.ac.id/handle/123456789/9188
Morphometric Characteristics of Asian Catfish, Hemibagrus wyckii (Bleeker, 1858) (Bagridae), from the Riau Province of Indonesia
Aryani, Netti; Hasibuan, Saberina; Mardiah, Ainul; Syandri, Hafrijal
Asian Catfish (Hemibagrus wyckii ) is an important fish having both food and a high price in the market. These
species are categorized as a carnivorous freshwater finfish native in Indonesia and is vulnerable to endangered status. This study was
carried out to identify the morphometric characteristics of Hemibagrus wyckii (H. wyckii ) from the Koto Panjang Reservoir, Kampar Kanan
and Kampar Kiri rivers. Materials and Methods: Twenty-five fish were collected from each sampling site. The morphometric characteristics
were analyzed using the truss morphometric method. Twenty-nine characteristics were measured to obtain the morphometric
characteristics of this species. Morphometric data of H. wyckii were analyzed using one-way ANOVA (SPSS version 17.0). Principal
component analysis (PCA) was used to evaluate the relationship between different factors and morphometric characteristics. The
distribution across different habitats was measured by component canonical analysis (CCA) and genetic distance was analyzed by
hierarchical cluster. Results: The average standard lengths of H. wyckii from the Koto Panjang Reservoir, Kampar Kanan and Kampar
Kiri rivers (Mean±SD) were 428±15.78, 432.52±66.11 and 425.86±50.41 mm, respectively. Twenty-nine morphometric characteristics
were measured. There was a 68.96% difference obtained in samples collected at the Koto Panjang Reservoir and Kampar Kanan river. There
was a 95.55% difference obtained in the Koto Panjang Reservoir, Kampar Kiri river and a 100% difference obtained in the Kampar Kanan
and Kampar Kiri rivers. The main differences in morphometric characteristics included inter orbital distance, length of adipose-fin base,
predorsal length, length of front dorsal fin-front pelvic and depth of caudal peduncle. The Mahalanobis distance between fish from the
Koto Panjang Reservoir and Kampar Kanan river demonstrated that both types originated from a single population. Conclusion: It was
concluded that more favorable morphometric characteristics of H. wyckii were found in the Kampar Kanan river compared to those from
the Koto Panjang Reservoir and Kampar Kiri river.
2018-02-13T00:00:00ZInfluence of Feeding Rate on the Growth, Feed Efficiency and Carcass Composition of the Giant Gourami (Osphronemus goramy)
https://repository.unri.ac.id/handle/123456789/9187
Influence of Feeding Rate on the Growth, Feed Efficiency and Carcass Composition of the Giant Gourami (Osphronemus goramy)
Aryani, Netti; Azrita, Azrita; Mardiah, Ainul; Syandri, Hafrijal
Aquaculture feeding rate is an important factor affecting the growth of giant gourami. The aims of the
study were to investigate the effect of different feeding rates on the growth, and carcass composition of
giant gourami (initial weight 14.17±0.15 g and length 9.88±1.11 cm). The nutrition content of the diet
was a cross energy of 3,340.50 kcal/kg, made up of 30% crude protein, 7% crude lipid, 6% crude fiber,
12% ash, and 12% moisture as a percentage of fish body weight, with three replicates per treatment. Fish
were fed three times per day at 09:00, 14:00, and 18:00. The experiment was carried out for 120 days.
Each month, 30 fish were removed from each of the floating net cages to be measured and weighed. The
biomass of fish was calculated, and the amount of feed was adjusted. The feeding rate significantly (p<
0.05) influenced the final fish weight, net weight gain (NWG), average daily growth (ADG), specific
growth rate (SGR), and feed conversion ratio (FCR). The maximum growth of giant gourami was found
at 6% feeding rate. However, the best feed conversion ratio (1.34±0.18) was obtained at the 4% feeding
rate. The carcass composition (crude protein and crude lipid) of giant gourami with different feeding rates
showed a significant increase (p<0.05) after 120 days of the experiment. Based on growth performance,
feed efficiency, and carcass composition, a 6% feeding rate showed the best result for the growth of giant
gourami in Maninjau Lake.
2018-02-13T00:00:00ZEffects Of 17ß-Estradiol On The Reproduction Of Green Catfish (Hemibagrus Nemurus, Bagridae)
https://repository.unri.ac.id/handle/123456789/9186
Effects Of 17ß-Estradiol On The Reproduction Of Green Catfish (Hemibagrus Nemurus, Bagridae)
Aryani, Netti; Indra, Suharman
The aim the research is to increase the reproductive potential of H.nemerus female that is time matured gonads, somatic ovi index, fecundity, egg diameter, hatching rate and time to hatching in the control group (injection 0.9 NaCl) and exposed to 200 μg/kg, 400 μg/kg, 600 μg/kg body weight of 17ß-estradiol. Treatment of 17ß-estradiol levels were significant (p<0.05) different with respect to time ripe gonads, ovi somatic index, fecundity and egg diameter. Females exposed to 400 μg/kg body weight of 17ß-estradiol can increased time matured gonads 28 days, somatic ovi index 10.32%, absolute fecundity 63,724 egss/spaw, relatif fecundity 90 eggs/ g gonado weight and egg diameter 1.22 mm. But hatching rate and time to hatching did not differ between the treatments (p>0,05)
2018-02-13T00:00:00Z