Age-dependent response of digestive enzyme activities to dietary protein level and water temperature in greenlip abalone (Haliotis laevigata)

Bansemer, Matthew S.; Qin, Jianguang; Harris, James O.; Schaefer, Elise N.; Wang, Hanru; Mercer, Georgia J.; Howarth, Gordon S.; Stone, David A.

doi:10.1016/j.aquaculture.2015.10.013

Cited by 33 publications

(24 citation statements)

References 29 publications

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“…Similarly, Bansemer et al. () found that trypsin activity was significantly higher in 1‐year‐old abalone than in 2‐year‐old abalone, and the researchers noted that the significant downregulation of trypsin in 2‐year‐old abalone likely reduced dietary protein utilization; their findings support a reduction in dietary protein levels for cultured 2‐year‐old abalone compared with 1‐year‐old greenlip abalone, as previously recommended by Stone et al. ().…”

Section: Discussionsupporting

confidence: 55%

“…Previous studies have reported that lipase activity is not significantly influenced by age class in abalone Bansemer et al. (), and Seval et al. () also found no significant difference in lipase activity among different sizes of freshwater crayfish; however, lipase activity significantly increases with age in Culter alburnus (Yin, Cui, Song, Li, Wang, ).…”

Section: Discussionmentioning

confidence: 85%

“…However, Bansemer et al. () have reported that water temperature does not significantly influence trypsin activity in abalone, and they speculated that trypsin may not be representative of proteases in abalone. In addition to trypsin, many other types of proteases, such as chymotrypsin and pepsin, can also exist in R. venosa .…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, Bansemer et al. () found that α‐amylase activity increases significantly with water temperature over a range of 16 to 22°C in abalone and fish (Bowyer et al., ). The cellulase and α‐amylase activities were likely significantly upregulated at 16 and 22°C to increase the utilization of carbohydrates, which may be important to the energy metabolism of R. venosa under suitable water temperatures.…”

Section: Discussionmentioning

confidence: 99%

“…However, there are only a few studies of the digestive enzymes of R. venosa, most of which have focused on the physiological and biochemical characteristics of the enzymes (Toptikov, Totsky, Alieksieieva, & Kovtun, ; Qi, ). Additionally, previous studies have indicated that digestive enzyme activity in aquatic animals is dramatically affected by water temperature, while previous studies have reported that the activity of digestive enzyme will vary with the growth and development of the animals (Bansemer et al., ; Seval, Esra, & Mehmet, ). R. venosa exhibits a distinct shift in feeding habits during its life cycle (Yang et al., ).…”

Section: Introductionmentioning

confidence: 99%

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The responses of digestive enzymes in juvenile and adultRapana venosa(Valenciennes, 1846) to different temperatures

Yang

Song

et al. 2019

Aquac Res

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The veined rapa whelk, Rapana venosa (Valenciennes, 1846), is an important and valuable fishery species; however, it has not been routinely artificially cultured on a large scale. Here, we studied the effect of temperature (6, 16, 22 and 28°C) on the digestive enzymes in R. venosa of different sizes (Juvenile (small, S: 1.2–1.8 cm) and adult (medium, M: 4.1–5.2 cm; large, L: 7.6–8.9 cm)) by detected the enzyme activity in different digestive glands (the salivary gland, Leiblein's gland (oesophageal gland) and liver) using spectrophotometric method, to determine the optimal temperature for artificial cultivation and to explore the feeding habits of this whelk. The optimal temperature was determined to be approximately 22°C. The food intake was significantly higher at 22°C than at other temperatures, and the activity of the digestive enzyme, trypsin, was at the highest in the main digestive gland of R. venosa, the liver, at 22°C. In addition, the observed presence of cellulase and α‐amylase may suggest that carbohydrates are necessary during R. venosa development. The results of this study will help in the formulation of technical procedures for R. venosa aquaculture and in preventing its overexploitation, and explained its invasion mechanism to some extent.

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Section: Discussionsupporting

confidence: 55%

Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The responses of digestive enzymes in juvenile and adultRapana venosa(Valenciennes, 1846) to different temperatures

Yang

Song

et al. 2019

Aquac Res

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Digestive enzymes of postweaned greenlip abalone (Haliotis laevigata) are influenced by water temperatures and dietary protein levels

Bansemer,

Salini,

Qin

et al. 2023

Aquaculture Fish & Fisheries

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Digestive enzyme activities are known to fluctuate in abalone grown under different environmental conditions however the effects of different dietary regimes are less clear. Therefore, in a 12‐week study, the effects of water temperature and dietary protein levels on digestive enzyme activity in postweaned (6‐month‐old) greenlip abalone (Haliotis laevigata) were investigated. The abalone were fed diets with crude protein levels that ranged from 27% to 36% and cultured at 14°C, 17°C and 20°C. Diets were formulated to be isoenergetic (12.5 MJ kg−1 digestible energy) and isolipidic (3.6% crude lipid). Trypsin, α‐amylase and lipase activities were measured in the gastrointestinal region. Trypsin, α‐amylase and lipase activities significantly increased as water temperatures were raised. In addition, significantly higher α‐amylase activities were observed as protein levels increased, potentially indicating a compensatory effect to increase carbohydrate utilisation for energy metabolism when in short supply. However, abalone fed high dietary protein levels may also utilise protein for energy metabolism. Further research investigating the dietary carbohydrate source for greenlip abalone is recommended. This study provides useful information on the digestive enzyme activity in postweaned greenlip abalone to improve diet strategies for sustainable production.Abbreviated abstract: Post‐weaned greenlip abalone digestive enzyme activity was examined after feeding four dietary protein levels at three different temperatures for a 12‐week period. Enzyme activities were significantly increased with increasing water temperature. Additionally, significantly higher α‐amylase activities were observed as protein levels increased.

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Utilization of Proteinaceous Nutrients—‘Becoming Strong with Meat’

Steinberg

2022

Aquatic Animal Nutrition

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Age-dependent response of digestive enzyme activities to dietary protein level and water temperature in greenlip abalone (Haliotis laevigata)

Cited by 33 publications

References 29 publications

The responses of digestive enzymes in juvenile and adultRapana venosa(Valenciennes, 1846) to different temperatures

The responses of digestive enzymes in juvenile and adultRapana venosa(Valenciennes, 1846) to different temperatures

Digestive enzymes of postweaned greenlip abalone (Haliotis laevigata) are influenced by water temperatures and dietary protein levels

Utilization of Proteinaceous Nutrients—‘Becoming Strong with Meat’

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