EFFECT OF STOCKING DENSITY ON GROWTH PERFORMANCE OF DOMESTICATED BARB (Barbonymus balleroides)

Barb (Barbonymus balleroides) considerably has economic potential as aquaculture commodity. However, there was still lack of development on aquaculture for this species. This study was conducted to observe the effect of different stocking density on growth of barb. The fish (body weight: 14.89 ± 0.13 g) were stocked in nine floating nets (dimension: 2 m x 2 m x 1 m) inside the concrete ponds with three stocking density treatments (10, 15, and 20 fish/m3). Each treatment consisted of three replications. Fish were fed on commercial pellet (30% of crude protein) as much as 3% of the biomass per day with twice a day of feeding frequency. Data of growth performances (body weight, specific growth rate, average daily growth, biomass, food conversion ratio, and survival rate) were collected every 30 days during 90 days of rearing period. Water quality variables (temperature, pH, and dissolved oxygen) were observed during experiment. The results showed that the optimal stocking density for the growth of barb was 10 fish/m3. Best value of food conversion ratio was found 10 fish/m3 compared with 15 and 20 fish/m3 (P<0.05). Meanwhile, there were no significant differences on survival rate between treatments. These results also showed the potential of rearing barb on culture ponds with appropriate stocking density.

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Growth Performance of Mutiara Catfish (Clarias gariepinnus) Fed a Combination of Commercial Feed and Black Soldier Fly Maggot (Hemetia illucens)

Asian Journal of Fisheries and Aquatic Research ◽

10.9734/ajfar/2020/v9i430168 ◽

2020 ◽

pp. 27-36

Author(s):

Maulana Ranantika Habibie ◽

Ayi Yustiati ◽

Kiki Haetami ◽

Ibnu Bangkit Suryadi

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Feed Efficiency ◽

Conversion Ratio ◽

Length Ratio ◽

Food Conversion ◽

Daily Growth Rate ◽

Daily Growth ◽

Food Conversion Ratio ◽

Commercial Feed

The purpose of this research was to determine the appropriate combination of commercial feed and maggot to produce optimum growth, feed efficiency and food conversion ratio for catfish. This research used experimental method with Completely Randomized Design (CRD) consisting of four treatments and four replications. The study was conducted in the Ciparanje Land Fisheries Area, Faculty of Fisheries and Marine Sciences, Padjadjaran University. The research was carried out between January - July 2019. The treatments are combination of commercial feed and maggots consisting of A (control, 100% commercial feed), B (75% commercial feed + 25% maggot), C (50% commercial feed + 50% maggot) and D (25% commercial feed + 75% maggot). The parameters observed were survival rate, daily growth rate, length ratio, feed efficiency, food conversion ratio and water quality. The combination of commercial feed and maggots affected the daily growth rate, length ratio, feed efficiency and food conversion ratio of catfish. The survival rate of each treatment was 88.75, 92.50%. Treatment C showed the value of highest daily growth rate, length ratio, feed efficiency namely 1.86%, 1.40%, 65.09% respectively and the lowest feed conversion ratio 1.54%.

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Penggunaan tepung daun kedondong laut beda komposisi terhadap pertumbuhan ikan Nila (Oreochromis niloticus)

e-Journal BUDIDAYA PERAIRAN ◽

10.35800/bdp.7.1.2019.27197 ◽

2019 ◽

Vol 7 (1) ◽

Author(s):

Andris Pasiali ◽

Cyska Lumenta ◽

Diane J. Kusen

Keyword(s):

Oreochromis Niloticus ◽

Feed Efficiency ◽

Conversion Ratio ◽

Food Conversion ◽

Daily Growth ◽

Relative Growth ◽

Food Conversion Ratio ◽

Randomized Design ◽

Reasonable Range ◽

Absolute Growth

The aim of the study was to determine the effect of different compositions of kedondong laut leaf flour in feed formulations on absolute growth, daily growth, relative growth, feed efficiency, food conversion ratio. The test animals used were Nile tilapia with a size of 3-5cm in length and weigh between 1.3 - 2 g. Fish were stocked in nets measuring 50x50x50 cm3 with a density of 10 fish each. Fish were obtained from the Tatelu Aquaculture Fisheries Center, Dimembe District, North Minasaha Regency. The study was conducted by an experimental method using a complete randomized design (CRD). The treatments consisted of A without addition of kedondong laut leaves flour, Treatment B with addition of 10% kedondong laut leaf flour, Treatment C with addition of 20% kedondong laut leaf flour, Treatment D with addition of 30% kedondong laut leaf flour. The results of the experiment showed that treatment B was the best where absolute growth (23%), relative growth (287.3%), daily growth (3.93%), feeding efficiency (95.83 %) and food conversion ratio (1,044). Water quality during the experiment was in a reasonable range where the water temperature during experiment was 26oC, pH 7-8

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Penggunaan Tepung Buah Pepaya Carica papaya L Dalam Pelet Terhadap Efek Pertumbuhan Benih Ikan Nila Oreochromis niloticus

e-Journal BUDIDAYA PERAIRAN ◽

10.35800/bdp.6.1.2018.19540 ◽

2018 ◽

Vol 6 (1) ◽

Author(s):

Herol A. Tulung ◽

Cyska Lumenta ◽

Edwin L.A. Ngangi

Keyword(s):

Feed Efficiency ◽

Conversion Ratio ◽

Fish Feed ◽

Food Conversion ◽

Daily Growth ◽

Relative Growth ◽

Food Conversion Ratio ◽

Randomized Design ◽

Absolute Growth ◽

Different Doses

This study aimed to determine the effect of papaya flour at different doses on absolute growth, daily growth, relative growth, feed efficiency, and food conversion. The treatments consisted of 0, 2.5%, 7.5%, 10% of papaya flour respectively, each with three replcations. The weight of fish were about 18-23.58 g. The fish were placed in aquaria with a density of 10 individual per aquarium. The experiment design is a complete randomized design. The results of analysis show that the treatments had no significant effect on growth, daily growth, relative growth, feed efficient, and food conversion ratio. However, treatment C (7.5% papaya flour) gave the best on growth of fish, feed efficiency and food conversion ratio.

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Efisiensi pakan bertepung kijing Taiwan (Anodonta woodiana) bagi pertumbuhan ikan mas (Cyprinus caprio L.)

e-Journal BUDIDAYA PERAIRAN ◽

10.35800/bdp.5.3.2017.17875 ◽

2017 ◽

Vol 5 (3) ◽

Author(s):

Arliani Mangkapa ◽

Cyska Lumenta ◽

Jeffrie F. Mokolensang

Keyword(s):

Feed Efficiency ◽

Research Result ◽

Conversion Ratio ◽

Food Conversion ◽

Feed Conversion ◽

Daily Growth ◽

Relative Growth ◽

Food Conversion Ratio ◽

Best Response ◽

Randomized Design

The objectives of research were to determine the effect of different composition of Taiwanese mussel powder-supplemented feed on absolute growth, daily growth, relative growth, feed efficiency and food conversion ratio for carp fingerling; and to determine the best composition of Taiwanese mussel powder-supplemented feed that gave the best response on carp fingerling. The research was conducted at Laboratory of Aquaculture Technology by means of 15 aquaria with a density of 10 fishes (3-5 cm in length) per aquarium. The research implemented Complete Randomized Design with five treatments, each with three replications. The treatments included A= 0, B= 10, C= 20, D= 30, and E= 40% Taiwanese mussel carcass powder. The fish were fed three times a day at 6% of body weight. Research result showed the best absolute, daily, and relative growth, feed efficiency and food conversion ratio was observed at treatment E. It was concluded that feed supplemented with 40% of Taiwanese mussel carcass powder demonstrated the best response on and growth, feed efficiency and food conversion ratio.Keywords: Taiwanese mussel powder, growth, feed efficiency, feed conversion ratio

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Determination of Suitable Water Salinity and Live Food in The Rearing of Eel (Anguilla bicolor) Fry

Jurnal Akuakultur Indonesia ◽

10.19027/jai.7.71-77 ◽

2008 ◽

Vol 7 (1) ◽

pp. 71

Author(s):

. Sutrisno

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Specific Growth Rate ◽

Specific Growth ◽

Conversion Ratio ◽

Live Food ◽

Water Salinity ◽

Food Conversion ◽

Food Conversion Ratio

This study was conducted to determine suitable water salinity and live food in the rearing of eel, Anguilla bicolor fry. Eel fry in weight of 0.15±0.008 g/tail were reared at controlled tank at density of 2 fish liter-1 for 42 days. Experiment was devided into two steps. In the first step of experiment, eel fry were reared at different water salinity, i.e., 0; 5; 10 and 15 ppt. Fish were fed on Tubifex at satiation. The best result from the first experiment was then used in the second step of study to examine proper live food for eel fry. Fish were fed on live food (Tubifex, Artemia, or Spirulina) at 10% body weight. Survival rate, specific growth rate and food conversion ratio were observed. The result of experiment showed that survival rate of eel fry reared in water salinity of 5 ppt (100%), 10 (96%) and 15 ppt (97%) was higher (p<0.05) compared to that of 0 ppt (58%). Specific growth rate was also higher (p<0.05) in fish reared in water salinity of 5 (2.33%), 10 (1.65%) and 15 ppt (1.57%) compared to that of 0 ppt (0.022%). Survival rate and specific growth rate of fish at treatment of 5, 10 and 15 ppt were insignificantly different (p>0.05). The best food conversion ratio was also being obtained at treatment of 5 ppt (3.36), followed repectively by 10 ppt (5.11), 15 ppt (5.70) and 0 ppt (21.11). No different survival rate of eel fry by feeding on different live food was obtained. Higher specific growth rate was achieved at feeding of Artemia (2.82% per day), followed respectively by Tubifex (1.85% per day) and Spirulina (0.15% per day). Food coversion ratio in each treatment was 4.42, 2.77 and 134.33, respectively. Keywords: eel, salinity, live food <h5>ABSTRAK</h5> Penelitian dilakukan dengan tujuan untuk mengetahui salinitas air dan jenis pakan alami yang tepat dalam pemeliharaan benih ikan sidat (Anguilla bicolor). Benih sidat dengan berat rata-rata 0,15±0,008 g/ekor dipelihara selama 42 hari pada wadah terkontrol dengan kepadatan 2 ekor/liter. Penelitian dibagi kedalam dua tahap. Pada tahap pertama benih sidat diperlihara pada media dengan salinitas 0; 5, 10 dan 15 ppt. Pakan alami berupa cacing sutera diberikan secara satiasi. Salinitas terbaik hasil penelitian tahap pertama digunakan pada penelitian tahap kedua untuk mengetahui jenis pakan alami (cacing sutera Tubifex, Artemia, atau Spirulina) yang cocok untuk benih sidat. Pakan diberikan sebanyak 10% bobot tubuh. Paramater yang diamati meliputi sintasan, laju pertumbuhan spesifik dan efisiensi pakan. Hasil penelitian menunjukkan bahwa sintasan benih ikan sidat yang dipelihara pada salinitas 5 (100%), 10 (96%) dan 15 ppt (97%) lebih tinggi (p<0,05) daripada yang dipelihara pada salinitas 0 ppt (58%). Laju pertumbuhan spesifik juga lebih tinggi (p<0,05) pada benih yang dipelihara pada salinitas 5 (2,33%), 10 (1,65%) dan 15 ppt (1,57%) dibandingkan dengan salinitas 0 ppt (0,022%). Sintasan dan laju pertumbuhan spesifik antara perlakuan 5, 10 dan 15 ppt tidak berbeda nyata (p>0,05). Konversi pakan terbaik juga diperoleh pada perlakuan 5 ppt (3,36), diikuti berturut-turut 10 ppt (5,11), 15 ppt (5,70) dan 0 ppt (21,11). Pemberian pakan alami yang berbeda tidak berpengaruh terhadap sintasan benih sidat, tetapi berpengaruh terhadap pertumbuhan. Pemberian Artemia memberikan laju pertumbuhan spesifik tertinggi, yaitu 2,82%/hari, Tubifex (1,85%/hari) dan Spirulina (0,15%/hari). Konversi pakan tiap perlakuan berturut-turut adalah 4,42; 2,77 dan 134,33. Kata kunci: ikan sidat, salinitas, pakan alami

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Food conversion is transiently affected during 4-week chronic administration of melanocortin agonist and antagonist in rats

Journal of Endocrinology ◽

10.1677/joe.0.1730517 ◽

2002 ◽

Vol 173 (3) ◽

pp. 517-523 ◽

Cited By ~ 36

Author(s):

L Jonsson ◽

JO Skarphedinsson ◽

GV Skuladottir ◽

H Watanobe ◽

HB Schioth

Keyword(s):

Body Weight ◽

Food Intake ◽

Chronic Administration ◽

Conversion Ratio ◽

Melanocortin Receptor ◽

Food Conversion ◽

Melanocortin System ◽

Intracerebroventricular Infusion ◽

Food Conversion Ratio ◽

Melanocortin 4 Receptor

The central melanocortin system is involved in the regulation of food intake and body weight. In this study, we investigated the effect of a 4-week intracerebroventricular infusion of the melanocortin receptor agonist MT-II and the selective melanocortin-4 receptor antagonist HS024 on food intake and body weight homeostasis. The MT-II-treated rats ate less and lost considerably more weight than the control rats during the first week of treatment. During the second and third week, they gained weight and, by the end of the treatment period, the weight gain was similar to that of the control rats. The HS024 treatment caused hyperphagia and development of obesity during the entire period. Extensive accumulations of fat and a sixfold increase in leptin levels were observed in the HS024-treated rats, as compared with controls, after the 4-week period. Food conversion ratio, defined as body weight increase relative to weight of ingested food, was clearly increased in the HS024-treated rats, while it was lowered in the MT-II-treated rats compared with controls. The effect on food conversion ratio was transient, being greatest for both experimental groups during the first week and it was then attenuated to reach the level of controls at the end of the study. The results suggest that long-term injection of exogenous melanocortin receptor active substances may have an important transient effect on food conversion.

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Selection for rate and efficiency of lean gain in Hereford cattle. 2. Evaluation of correlated responses

Animal Science ◽

10.1017/s0003356100005134 ◽

1990 ◽

Vol 51 (1) ◽

pp. 35-46 ◽

Cited By ~ 9

Author(s):

R. A. Mrode ◽

C. Smith ◽

R. Thompson

Keyword(s):

Growth Rate ◽

Body Weight ◽

Conversion Ratio ◽

Food Conversion ◽

Correlated Responses ◽

Selected Lines ◽

Female Progeny ◽

Food Conversion Ratio ◽

Hereford Cattle ◽

Selection For

ABSTRACTCorrelated responses in two lines of Hereford cattle selected for lean growth rate (LGR) from birth to 400 days of age and lean food conversion ratio (LFCR) from 200 to 400 days of age for a period of 8 years were evaluated. Correlated changes were estimated by two methods: deviation of selected lines from a control line and restricted maximum likelihood. Generally, estimates from the two methods were similar but tended to be more precise for the latter. Statistically significant correlated responses occurred in growth rate in the LGR line and in lean proportion and food conversion ratio in both selected lines. Selection for LGR was accompanied by increases in body weight at various ages in both male and female progeny. In the LFCR line there were little or no changes in body weight for male calves but some increases at certain ages for female progeny. There were no adverse correlated responses detected in reproductive traits such as calving difficulty and calving and pre-weaning mortality.

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Beneficial Effect of Bidens pilosa on Body Weight Gain, Food Conversion Ratio, Gut Bacteria and Coccidiosis in Chickens

PLoS ONE ◽

10.1371/journal.pone.0146141 ◽

2016 ◽

Vol 11 (1) ◽

pp. e0146141 ◽

Cited By ~ 18

Author(s):

Cicero L. T. Chang ◽

Chih-Yao Chung ◽

Chih-Horng Kuo ◽

Tien-Fen Kuo ◽

Chu-Wen Yang ◽

...

Keyword(s):

Body Weight ◽

Weight Gain ◽

Beneficial Effect ◽

Body Weight Gain ◽

Conversion Ratio ◽

Gut Bacteria ◽

Food Conversion ◽

Bidens Pilosa ◽

Food Conversion Ratio

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Partition of food intake between maintenance and gain among bovine sex phenotypes

Animal Science ◽

10.1017/s0003356100018560 ◽

1987 ◽

Vol 44 (2) ◽

pp. 209-217 ◽

Cited By ~ 6

Author(s):

T. W. Gettys ◽

D. M. Henricks ◽

P. M. Burrows ◽

B. D. Schanbacher

Keyword(s):

Body Weight ◽

Food Intake ◽

Gain Coefficient ◽

High Energy ◽

Conversion Ratio ◽

Food Conversion ◽

Food Conversion Ratio ◽

Common Weight ◽

Least Squares Estimates ◽

The Relationship

ABSTRACTFour groups of calves (10 bulls, 10 steers, 10 heifers and 10 ovariectomized heifers) of Simmental- Hereford breeding were individually given a high-energy diet from 10 to 16 months of age. At the end of the experiment, the 9-10-11th rib section was dissected into fat, lean and bone and chemical analysis was performed on the dissected soft tissue. For each group, the relationship between food intake and change in body weight was examined by a method designed to separate intake into its simultaneous maintenance and gain components: least-squares estimates for the maintenance coefficient (βm, kg/day per kg body weight) and the gain coefficient (βg, kg food per kg gain) were obtained for each animal. Conventional measures of food conversion ratio (kg food per kg gain) were examined on both common age and common weight-gain bases. Bulls, followed by steers, accumulated the most lean and least fat while heifers and ovariectomized heifers accumulated the least lean and most fat. Maintenance coefficients (βm) were lower in males than in females but did not differ within gender. Gain coefficients (βg) did not differ among the groups, although the coefficients appeared to be similar within gender. Food conversion ratio computed over a common age interval did not differ among groups. Food conversion ratio computed over common weight intervals was lowest in bulls followed in increasing order by steers then the two female groups. It is concluded that males grow more efficiently than females while accumulating more lean and less adipose tisue and that this greater efficiency is achieved by consuming less food per unit of body weight for maintenance, leaving proportionately more of the total intake available for gain.

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