Inhibition of gastric acid secretion by intestinal and parenteral administration of a mixture of L‐amino acids in the Atlantic cod, <i>Gadus morhua</i>

Haux, Carl

doi:10.1111/j.1748-1716.1982.tb07122.x

Cited by 6 publications

(1 citation statement)

References 19 publications

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“…Although the differences in the gut pH between fish fed the control diet (pH 6.1) and the acidified diet (pH 3.7) were substantial in their study, the results were not statistically analysed. A decrease in the gastric hydrochloric acid secretion after the administration of L-amino acids in Atlantic cod, Gadus morhua L., further indicated that diet composition can influence the pattern and nature of gastric acid secretion in fish (Holstein & Haux 1982). The gall bladder of fish secretes neutralizing agents in the duodenum (Smith 1989), which in turn activates gall bladder motility (Aldman et al 1992).…”

Section: Resultsmentioning

confidence: 99%

Dietary formic acid enhances apparent digestibility of minerals in rainbow trout, Oncorhynchus mykiss (Walbaum)

Vielma¹,

Lall²

1997

Aquaculture Nutrition

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The effect of dietary formic acid on the availability of phosphorus (P) from a fishmeal‐based diet by rainbow trout, Oncorhynchus mykiss (Walbaum), reared in brackish water (5–6 g L−1) was determined. Diets containing a low amount of P (6.0 mg P g−1 dry matter) were acidified with 0, 4 and 10 mL kg−1 formic acid and fed to trout (average weight, 520 g) for 4 weeks. The measured pH of the diets were 6.3, 5.8 and 5.3, respectively. The intestinal solubility of P and the digestibility of P were measured by stripping the faecal matter from the fish. The apparent digestibility coefficient (ADC) of P significantly (P < 0.05) increased from 69.5% to 75.0% of the basal diet in fish fed diets containing 10 mL kg−1 formic acid. The solubility of P in the intestine was highly variable within each treatment, and the differences were not significant. The pH of intestinal content increased with the increase in dietary formic acid concentration. The ADC of magnesium and calcium also showed a significant (P < 0.05) increase with the acidification of diet by formic acid.

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Section: Resultsmentioning

confidence: 99%

Dietary formic acid enhances apparent digestibility of minerals in rainbow trout, Oncorhynchus mykiss (Walbaum)

Vielma¹,

Lall²

1997

Aquaculture Nutrition

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Mythical models of gastric emptying and implications for food consumption studies

Jobling

1986

Contemporary Studies on Fish Feeding: The Proceedings of GUTSHOP ’84

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Mythical models of gastric emptying and implications for food consumption studies

Jobling

1986

Environ Biol Fish

107

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SynopsisTwo of the rnost important factors governing gastric emptying are meal volume and food composition. These factors have also been demonstrated to influence the secretion of gastric acid, digestive enzymes and gut hormones in both fish and mammals. In mammals, feedback loops involving gastrointestinal hormones have been implicated in the control of gastric motility and enzyme secretion. These findings are briefly reviewed and it is demonstrated how the functioning of the feedback loops could lead to changes in gastric emptying patterns. A simulation exercise was carried out incorporating these physiological observations into the emptying model. The results predicted that an exponential function would best describe the emptying of small, easily digested low energy food particles from the stomach, but that a linear expression would give a better fit to the emptying data when food consisted of high energy large sized particles. These predictions were supported by results obtained in a number of experimental studies. These results are discussed in terms of selecting methods for the estimation of daily food consumption of fish species.

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Inhibition of gastric acid secretion by intestinal and parenteral administration of a mixture of L‐amino acids in the Atlantic cod, Gadus morhua

Cited by 6 publications

References 19 publications

Dietary formic acid enhances apparent digestibility of minerals in rainbow trout, Oncorhynchus mykiss (Walbaum)

Dietary formic acid enhances apparent digestibility of minerals in rainbow trout, Oncorhynchus mykiss (Walbaum)

Mythical models of gastric emptying and implications for food consumption studies

Mythical models of gastric emptying and implications for food consumption studies

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