Academic literature on the topic 'Fishes – Barbados – Feeding and feeds'

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Dissertations / Theses on the topic "Fishes – Barbados – Feeding and feeds"

1

Furnell, Donald James. "The effect of feeding frequency on the respiratory metabolism of sablefish (Anoplopoma fimbria)." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27302.

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The three components of the aerobic respiratory metabolism of sablefish, digestion (SDA), activity, and standard metabolism, were examined separately and together as dependent variables responding to the independent variable, feeding frequency. All fish were similar in size and held within a temperature range of 8.5 - 9.5 C on a 12 hr photoperiod. Fish were studied in both 4000 L mass respirometers equipped with activity meters and in a tunnel respirometer. Identical meals were given every 4, 7, and 14 days. A fourth series of starved fish served as controls. In the mass respirometers, oxygen
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2

Babane, Siviwe Elvis. "Towards understanding the effect of size variation on the aggressive and feeding behaviours ofjuvenile dusky kob Argyrosomus japonicus (Pisces: Sciaenidae)." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/59592.

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Many studies have been conducted on the effect of size-grading in other fish species. However, there is a paucity of scientific information on the effects of size variation on cannibalism of juvenile dusky kob. Thus, a study focusing on the effect of size variation on juvenile dusky kob aggressive and feeding (browsing) behaviours was conducted. Three separate groups of hatchery-reared juvenile dusky kob of were obtained from Oceanwise (Pty) Ltd for use in a series of three experimental trials. In all trials, juvenile fish of the same age were size-graded and the COV-value was used to determin
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3

Browman, Howard I. "Feeding behaviour in fry of Atlantic salmon, Salmo salar L." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63129.

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4

Wong, Ka-hei, and 黃家禧. "Novel function of spexin as a satiety factor in feeding control." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/207994.

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Spexin (SPX), also called neuropeptide Q (NPQ), is a novel neuropeptide discovered recently using the bioinformatic approach. Except for mammals, SPX has not been reported in lower vertebrates including fish and amphibians. Following its discovery, the biological functions of this peptide in both higher and lower vertebrates are still largely unknown. To examine the structure and functions of SPX in fish model, molecular cloning of goldfish SPX has been performed and found to be highly comparable to its mammalian counterparts. In goldfish, broad expression of SPX transcripts has been found
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5

Johnston, Gavin. "Effect of feeding regimen, temperature and stocking density on growth and survival of juvenile clownfish (Amphiprion percula)." Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1005118.

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In aquaculture, a thorough knowledge of the specific environmental requirements of a species is needed in order to maximize growth rate and survival. There is a paucity of data regarding the fundamental environmental requirements for the ongrowing phase of clownfish juveniles. This prompted the design of three experiments to determine the best feeding regimen, temperature and stocking density that maximize growth and survival of Amphiprion percula. Ration size and feeding frequency are important factors for optimizing fish growth during the juvenile grow-out phase. A factorial growth trial was
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6

Thomson, Douglas Edward. "Determination of the effects of fish size and feed pellet size on the settling characteristics of Rainbow trout (Salmo gairdneri) culture cleaning wastes." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26649.

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This research reports on the determination of the effects of fish size and feed pellet size on the settling characteristics of Rainbow trout (Salmo gairdneri) culture, tank cleaning wastes. Flocculant particle settling curves (Type II) were developed from settling column analysis of cleaning wastes from 11-311 gram Rainbow trout fed a moist pellet diet (Oregon Moist Pellet ®). Four feed pellet sizes were investigated: 3/32, 1/8, 5/32 and 3/16 inch. Overall non-filterable residue removal curves and individual particle settling velocity distribution curves, derived from the Type II settling cu
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7

Deguara, Simeon. "Effect of supplementary enzymes on the growth and feed utilisation of gilthead sea bream, Sparus aurata L." Thesis, University of Stirling, 1998. http://hdl.handle.net/1893/21843.

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A series of five experiments were carried out to determine the effect of supplementary enzymes on growth performance and feed utilisation of juvenile gilthead sea bream, Sparus aurata, fed diets in which soybean meal (S8M) partially replaced fish meal (FM). In the first of these experiments the addition of cocktails containing 1 g/kg low pH active protease and 1 glkg a-galactosidase or 1 glkg high pH active protease and ] glkg a.-galactosidase to a 320 glkg SBM, 260 glkg FM pressed diet were both found to significantly (P<0.05) improve performance of fish fed these diets compared to fish fed t
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8

Mzozo, Ziyanda. "Aspects of the feeding biology of the copepod Pseudodiaptomus hessei (Copepoda: Calanoida) under culture conditions." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/4727.

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This study aimed to investigate the feeding behaviour of the calanoid copepod, Pseudodiaptomus hessei, particularly whether it prefers to feed on a planktonic or benthic food source. The effect of different microalgae species on the feeding preference, ingestion, and gut evacuation rate were investigated. Two microalgae species (Isochrysis galbana and Tetraselmis suecica) were used, to test gut fullness and gut evacuation of P. hessei. The copepods were starved for 6 h and allowed to feed on monalgae diets, I .galbana and T. suecica, and a 1:1 binary diet mixture of T. suecica and I. galbana.
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9

Andrade-Salas, Obdulio. "Feeding and digestion in the ectoparasitic copepod Lepeophtheirus salmonis (Kroyer, 1837)." Thesis, University of Stirling, 1997. http://hdl.handle.net/1893/3266.

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A study has been carried out to investigate some aspects of the feeding and digestion of the parasitic copepod Lepeophtheirus salmonis (Kreyer, 1837), a serious pathogen of wild and farmed marine salmonids. The alimentary canal consists of a cuticularised foregut and hindgut and a midgut, the latter comprising most of the length of the alimentary canal. It consisted of an anterior diverticulum, and anterior midgut, mid midgut and posterior midgut. All the midgut is lined in the luminal side with a monolayer of digestive epithelium. The latter is supported by a porous basal membrane. Mesenterie
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10

Bundit, Jatuporn. "The nutrition and feeding of a native Thai species, the marble goby (Oxyeleotris marmoratus), involving on-farm and experimental studies." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/256.

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In Thailand, culture and production of a high value freshwater fish, the marble goby, is dependant upon farm-made feeds using marine and freshwater trash fish as primary ingredients. However, there is lack of nutritional research regarding the use of such farm-made feeds and their impacts on the nutritional status, growth and health of marble goby. The aims of the present study were to evaluate the effects of farm- made feeds on slaughter indices, fish lipid classes and fatty acid profiles, nutrient composition and digestibility. In addition it was intended to improve on-farm feed quality for
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