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Showing 1 to 20 of 20 for “"food conversion"”.
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Selected experiments on growth and food conversion efficiency of bluegill, Lepomis macrochirus
… regimen on growth in length and weight and on food conversion efficiency by bluegill fed rations of mealworms. Two 30 day periods were utilized for each study. Part one, which examined the effect of aquarium volume on growth extended from January 20 to February 18 and from March 27 to April 25, …
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The Husbandry and Nutrition of Carp Larvae and Fry
… of developing an artificial substitute for live food during first stage rearing of mirror carp (Cyprinus carpio) larvae, diet presentation and related husbandry techniques, as well as selected nutritional requirements of carp juveniles, were studied. Carp larvae held at a temperature of 24°C in …
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The effect of monochromatic light on the growth, food conversion, and survival of two strains of rainbow trout, Salmo gairdneri (Part I); Catfish farming as supplemental income in rural Virginia: use of catfish strains (Part II)
… in coefficient of condition, yield, ferd conversion ratio, and survival were not Significant between light treatments (α = 0.05) in my study, significant differences may possibly be found in studies with a larger sample size. Although high variability and small sample size limit …
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Feeding of Black Bullheads Ictalurus Melas (Rafinesque) in Experimental Cages
… cages gained 204.4 Kg and were fed 1550.8 Kg of food, for a food conversion of 6.60. Fish in smaller cages gained 133.5 Kg and were fed 924.5 Kg of food with a resultant food conversion factor of 6.92. Over 75 percent of total gain occurred while water temperatures were between 23º and 24º C. …
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The Effect of Anabolic-Androgenic Steroids on the Growth and Metabolism of Carp
… or ninety days, and their effect on growth, food conversion and body composition observed. Seven of these nine steroids when given at lower doses, significantly increased the growth rate and food conversion efficiency. The effect of these drugs on hepato-, reno-, cranio and viscero-somatic …
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Experimental cage culture of channel catfish in Virginia
… in terms of yield, survival, mean weight, food conversion, coefficient of condition, and percent marketable fish. Statistical analysis indicated that the Kansas strain was significantly different from both the Arkansas and North Carolina strains, but the latter two were not significantly …
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Reproduction in Male Salmonids with Special Reference to the Problems and Control of Maturation in Fish Culture
… to be an important component of the decreased food conversion efficiency observed in mature fish...
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Movement and Life History Aspects of the Pygmy Rattlesnake in Southwest Missouri
… and adult males exhibited higher average food conversion efficiency growth rates than adult females.
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ΣΥΜΒΟΛΗ ΣΤΗΝ ΚΑΤΑΡΤΙΣΗ ΤΟΥ ΒΕΛΤΙΣΤΟΥ ΣΧΕΔΙΟΥ ΕΠΙΛΟΓΗΣ ΤΩΝ ΧΟΙΡΩΝ ΣΤΗΝ ΕΛΛΑΔΑ
… ARE: - LITTER SIZE IN WEANING 170 DR/PIG, - FOOD CONVERSION EFFICIENCY 1440 DR/PIG, - DAILY GROWTH RATE 2 DR/PIG, - PERCENTAGE OF LEAM IN CAREASS 130 DR/PIG. THE EVALUATION OF THE TOTAL BREEDING VALUE IS BASED ON RESTRICTED SELECTION INDEXES FOR MEAT QUALITY. THE CRITERIONS OF EFFECTIVENESS …
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The Penaeus monodon baculovirus (MBV): Its epizootiology, prevention and control in penaeid shrimp hatcheries and grow-out ponds in the Philippines.
… of the growth performance, survival and food conversion ratio between MBV-infected and non-infected populations of P. monodon was investigated and a new technology called Strategic Egg Prophylaxis (SEP) in the production of MBV-free P. monodon postlarvae was developed and tested. MBV was …
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Rainbow Trout (Salmo Gairdneri) Cage Culture and Primary Production In Eastern South Dakota Dugout Ponds
… differences (P≤0.01) in mean length, weight, and food conversion, and similarity in relative weight between trout fed 2 and 4% of body weight daily, indicated that the optimum feeding rate was near 3% for this size range (35=100g). Daily rations based on fish size and water temperature need to be …
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Rainbow Trout Cage Culture Utilizing Different Strains, Stocking Densities, and Feeding Methods in Eastern South Dakota Dugout Ponds
… trout also had significantly (P≤0.01) better food conversion ratios than the other two strains. Due to the short growing season it is not economically feasible to raise rainbow trout in eastern South Dakota dugouts at this time. It is recommended that further trout culture work be centered on …
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Juvenile crappie growth and bioenergetics: implications for management using blacknose crappie
… they exhibited higher relative growth rates and food conversion efficiencies than black and white crappies. Black and blacknose crappies also had higher maximum food consumption rates than white crappie. No strain-temperature interactions were detected for the suite of parameters measured, …
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Growth and Nutrition of Carp in Heated Effluents
The growth responses and food utilization of mirror carp were investigated under varied dietary and environmental conditions. Studies showed that growth rate was least at 35°C intermediate at 20°C and greatest at 25 & 30°C. Food conversion ratio increased with increasing level of feeding at each …
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Analysis of protein content of two kelps, Ecklonia maxima and Laminaria pallida for feed in abalone aquaculture
… with Ecklonia maxima reported as having a better Food Conversion Ratio (FCR) than Laminaria pallida. Total protein content and other nutritional components (Carbon, Nitrogen and moisture content) of two kelp species, E. maxima and L. pallida were investigated. The kelps were collected from …
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Assessing the Thermal Tolerance and Growth Potential at Elevated Temperatures of Three Different Strains of Rainbow Trout (Oncorhynchus mykiss)
… between thermal tolerance and consumption, conversion efficiency, and growth rates at elevated temperatures. This thesis is comprised of three chapters; (1) an introduction and literature review on studies of temperature tolerance and growth in salmonids, (2) an experimental study …
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Growth Potential of Young Black Sea Bass, Centropristis Striata, in Artificial Environments
… under controlled conditions. The effect of food and body weight on growth was evaluated using juveniles and young black sea bass cultured with a natural diet and a commercial diet at various feeding levels.</p> <p>Growth was affected by type of food, food consumption rate, and fish body …
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Performance of Nile Tilapia and Yellow Perch Fed Diets Containing Distillers Dried Grain with Solubles and Extruded Diet Characteristics
… in significantly higher weight gain (WG), food conversion ratio (FCR), and protein efficiency ratio (PER) than experimental diets except for the 17.5% DDGS diet which provided similar FCR and PER. The diet containing 27.5% DDGS had significantly lower FCR and PER values than all other diets …