Effect of anthocyanin extract from Roselle,<i>Hibiscus sabdariffa</i>, calyx on haematological, biochemical and immunological parameters of rainbow trout,<i>Oncorhynchus mykiss</i>

Jomeh, Rita; Chitsaz, H; Akrami, Reza

doi:10.1111/are.15218

Cited by 11 publications

(11 citation statements)

References 56 publications

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“…The studies in peer-reviewed journals revealed that HG fish fed with various additives had a higher number of RBC. For example, ellagic acid in rainbow trout ( Oncorhynchus mykiss ) [ 57 ], brewer’s yeast in Nile tilapia [ 31 ], a combination of herbs in common carp ( Cyprinus carpio ) [ 58 ], butyric acid glycerides in yellowfin seabream ( Acanthopagrus latus ) [ 59 ], roselle anthocyanin extract in rainbow trout [ 60 ] and chitosan nanoparticles in Nile tilapia [ 43 ] increased the number of RBCs. Increased growth in these treatments demonstrates that fish benefit from optimised oxygen delivery, and there may be a direct relationship between growth and RBC numbers.…”

Section: Red Blood Cellsmentioning

confidence: 99%

“…The higher number of WBC in HG fish fed on barberry root [ 24 ], garlic [ 25 ], ellagic acid [ 57 ], zeolite [ 69 ], butyric acid glycerides [ 59 ], prebiotic inulin [ 48 ] and selenium nanoparticulate [ 70 ] were observed. Conversely, no relation between growth and WBC was observed in different fish species when they were fed on roselle anthocyanin extract [ 60 ], exopolysaccharide [ 27 ] and coriander extract [ 61 ]. The growth and WBC trends in FM/FO studies were similar ( Table S3 ).…”

Section: White Blood Cellsmentioning

confidence: 99%

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Blood Performance: A New Formula for Fish Growth and Health

Esmaeili

2021

Biology

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Monitoring fish health in a repeatable and accurate manner can contribute to the profitability and sustainability of aquaculture. Haematological and blood biochemistry parameters have been powerful tools and becoming increasingly common in aquaculture studies. Fish growth is closely related to its health status. A fish with a higher growth rate is more likely to be a healthy one. Any change in the physiological status of the fish, from pollution to nutritional stress, can cause changes in the blood parameters. Various aquaculture studies have measured the following components: red blood cells, white blood cells, haemoglobin, haematocrit, and total protein. However, because these parameters do not always follow the same trend across experimental fish, it is difficult to draw a firm conclusion about which parameter should be considered. Therefore, Blood Performance (BP) as a new formula is introduced, which is a more reliable indicator. This formula is simple and sums up the natural logarithm of the five above-mentioned parameters. More than 90 published peer-reviewed articles that measured these five parameters in the last six years confirmed the reliability and validity of this formula. Regardless of which supplements were added to the diets, the fish with a higher growth rate had higher BP as well. In addition, in 44 studies out of 53 articles, there was a significant positive correlation between specific growth rate and BP. Under different stressful situations, from pollution to thermal stress, the fish under stress had a lower BP than the control. Fish meal and fish oil replacement studies were further evidence for this formula and showed that adding excessive alternative proteins decreased growth along with BP. In conclusion, BP can be a reliable indicator of fish health and growth when it is compared between groups in the same experiment or farm. Although there was a positive correlation between specific growth rate and BP, comparing BP between experiments is not recommended. Standardising the haematological assays can improve the reliability and accuracy of BP across experiments.

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Section: Red Blood Cellsmentioning

confidence: 99%

Section: White Blood Cellsmentioning

confidence: 99%

Blood Performance: A New Formula for Fish Growth and Health

Esmaeili

2021

Biology

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“…Previous studies showed that besides microalgae, other plant sources can be a good source of carotenoids for aquaculture animals (Supamattaya et al, 2005;Jomeh et al,2021). Roselle, Hibiscus sabdariffa, is a flowering plant that grows in tropical and subtropical countries.…”

mentioning

confidence: 99%

“…However, the usage of roselle was not limited to human consumption. Previously, roselle meal or extract has been tested in aquatic animals and showed improving the growth, hematological profile, antioxidant characteristics, and immunological parameters of the animals (Pérez-Escalante et al, 2012;Hoseini et al, 2021, Jomeh et al, 2021. In most practices, the roselle was discarded after the extraction.…”

mentioning

confidence: 99%

“…In shrimp farming, disease outbreaks are a serious problem. The introduction of feed additives with antioxidant properties has been shown to enhance the immune response of the animal (Jomeh et al, 2021) and hence can minimize the severity of the disease outbreak. This study was conducted to investigate the potential use of fresh or heattreated roselle meals in the diet of L. vannamei.…”

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confidence: 99%

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Dietary inclusion of roselle improves body colouration and survival of the whiteleg shrimp (Litopenaeus vannamei) juveniles challenged against Vibrio harveyi

Yong

Lal

Mohamad

2022

Borneo J. Mar. Sci. Aqua

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This study was conducted to investigate the use of fresh and heat-treated roselle meals on growth, body colouration, and survival against Vibrio harveyi infection of whiteleg shrimp, Litopenaeus vannamei. Fresh (FR) or heat-treated roselle (HR) meals were added at 10% in isoproteic (38%) and isolipidic (7%) diets. A control diet was prepared without any addition of roselle meal. These diets were fed to shrimp (initial body weight 1.26g±0.02g) in triplicate groups for 8 weeks then challenged with V. harveyi. The growth, feed efficiency, total carotenoid content, and survival of shrimp and total Vibrio spp. counts in the hepatopancreas post-challenge test were estimated. No significant differences were recorded in the growth, survival, and feed utilization of the shrimp fed the roselle-added diets (FR or HR) compared to the control group. A significantly higher total carotenoid concentration was detected in shrimp fed with the FR and HR diets compared to the control (P<0.05). The challenge test with V. harveyi showed that the shrimp specimens fed with FR and HR diets gained higher survival and a lower total number of Vibrio spp. count in the hepatopancreas compared to the control group. The present finding suggests that fresh or heat-treated roselle meals provide a good source of carotenoid and increase the resistance of shrimp against vibriosis without affecting the growth and feed utilization.

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