Effect of dietary cadmium level on the growth, body composition and several hepatic enzymatic activities of juvenile yellow catfish,<i>Pelteobagrus fulvidraco</i>

Tan, Xiao-Ying; Luo, Zhi; Zhang, Guiying; Liu, Xiangjiang; Jiang, Min

doi:10.1111/j.1365-2109.2009.02386.x

Cited by 14 publications

(14 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results suggest that Cd-induced storage and detoxification in T. jarbua may increase the fish's tolerance to toxic metals. Tan et al [39] similarly investigated the effects of dietary Cd on the growth, body composition and several enzymatic activities of juvenile yellow catfish, Pelteobagrus fulvidraco, at four dietary Cd levels: 0.25 g/g (the control), 4.9, 48.6 and 475 g/g of diet. After four weeks of exposure, the weight gain, specific growth rate, food intake and protein efficiency ratio tended to decline with increasing dietary Cd level.…”

Section: Dietary Toxicity Of Metals To Fishmentioning

confidence: 99%

Dietary toxicity of metals in aquatic animals: Recent studies and perspectives

Wang

2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

Over the past decade, the quantitative recognition of the significance of dietary exposure in the overall bioaccumulation of metals in aquatic animals has been an area of major progress in metal ecotoxicology. In several major groups of marine animals such as predators and deposit-feeding animals, diet (food) is the predominant source for metal accumulation. The importance of trophic transfer raises very fundamental questions about its toxicity to aquatic animals and in setting water quality standards which go beyond waterborne metal exposure. Ten years of research on the dietary toxicity of metals in several groups of aquatic animals, including zooplankton and fish, is reviewed. It is suggested the future studies should attempt to incorporate the dosage rate or the dietary influx rate in the design of toxicology experiments to facilitate inter-comparison of the results of different studies.

show abstract

Section: Dietary Toxicity Of Metals To Fishmentioning

confidence: 99%

Dietary toxicity of metals in aquatic animals: Recent studies and perspectives

Wang

2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

show abstract

“…To date, a few preliminary studies have been conducted on the nutrient requirement for this fish species (Gan and Yuan 2006). Recently, based on the growth and feed utilization, we estimated the optimal dietary protein to carbohydrate ratio (Ye et al 2009), dietary linolenic acid/linoleic acid ratio (Tan et al 2009a) and dietary cadmium toxicity (Tan et al 2009b) for yellow catfish. However, to our knowledge, a paucity of information exists on phosphorus requirement for the fish species.…”

Section: Introductionmentioning

confidence: 99%

Dietary total phosphorus requirement of juvenile yellow catfish Pelteobagrus fulvidraco

et al. 2009

View full text Add to dashboard Cite

The present experiment was conducted to determine the dietary total phosphorus requirement of juvenile yellow catfish Pelteobagrus fulvidraco. Six diets with increasing dietary phosphorus concentration (0.43, 0.55, 0.78, 0.90, 1.05 and 1.18% of dry matter, respectively) were fed to triplicate groups of 20 fish each (mean initial body weight, 2.68 ± 0.08 g, mean ± SD) to apparent satiation for 7 weeks. Weight gain and specific growth rate (SGR) increased with increasing dietary phosphorus level from 0.43 to 0.90% and then declined over dietary phosphorus level of 0.90% (P \ 0.05). Phosphorus retention increased with increasing dietary phosphorus level from 0.43 to 0.55% and then declined over dietary phosphorus level of 0.55% (P \ 0.05). Dietary phosphorus levels significantly influenced whole body crude protein and ash contents (P \ 0.05), but not whole body lipid content (P [ 0.05). Vertebrae phosphorus content increased with dietary phosphorus level from 0.43 to 0.78% (P \ 0.05) and then plateau over the level of 0.78% (P [ 0.05). Dietary phosphorus level significantly influenced condition factor, viscerosomatic index and hepatosomatic index (P \ 0.05). The relationship between SGR and whole body ash content against dietary phosphorus levels could be expressed as a second-order polynomial equation and the points of 0.89 and 0.85% were considered to be the optimal dietary total phosphorus level, respectively. Based on broken-line analysis of vertebrae phosphorus content, the minimal dietary total phosphorus requirements for maintaining maximum phosphorus storages were estimated to be 0.76% phosphorus.

show abstract

“…Recently, in our laboratory, studies have been conducted to determine several mineral requirements for the fish species, including dietary phosphorus (Luo et al, 2010), copper and zinc requirement . We also evaluated the effect of dietary cadmium levels (Tan et al, 2010b) on growth performance and hepatic intermediary metabolism for this fish species. However, to our best knowledge, no information was available on dietary Mn requirement for this fish species.…”

Section: Introductionmentioning

confidence: 99%