Effect of Salinities on Gastric Emptying and Nutrient Absorption of Tiger Grouper × Giant Grouper (Epinephelus fuscoguttatus × E. lanceolatus) Hybrid

Noor, Noorashikin Md; Das, Simon Kumar; Cob, Zaidi Che; Ghaffar, Mazlan Abd.

doi:10.17576/jsm-2018-4706-01

Cited by 4 publications

(4 citation statements)

References 31 publications

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“…In sea bream ( Sparus aurata ) a 4‐ to 5‐fold increase in water absorption in the posterior intestine was observed when subjected at 55 ppt salinity (Gregorio et al., 2012). The gastric emptying was found to be highly salinity dependent and observed that at 25 and 30 ppt, longer time is needed to empty the digestive tract (Noor et al., 2018). There are few studies with freshwater fish that show the relationship between faeces and water salinity.…”

Section: Discussionmentioning

confidence: 99%

Effects of salinity gradients on the skin and water microbial community and physiological responses of tilapia (Oreochromis niloticus) in the pre‐slaughter

Uehara

Walter

Cunha

et al. 2021

Aquaculture Research

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The integration of care with food safety and animal welfare is a technological challenge guided by legal demands and the consumer market (Brazil, 2017). The transport of live fish is a common practice in aquaculture (Harmon, 2009;Vanderzwalmen et al., 2019). In addition to ensuring the survival and well-being of animals, transport must be carried out under conditions that minimize contamination by pathogens.Pathogens were found in the Nile tilapia (Oreochromis niloticus) intestine, such as enteropathogenic Escherichia coli, Salmonella spp., Proteus spp., Micrococcus spp. and Providencia sp., the authors recommended care with water containing excreta (Youssef et al., 1992).Although proper cooking deactivates Aeromonas spp., high incidences were found in the intestines of fish with the possibility of cross contamination (González et al., 2001). Olsen et al. (2002) found that acute stress influenced the microbiota and the adhesion of bacteria in the intestine of salmon (Salmo salar). Stress reduced

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Section: Discussionmentioning

confidence: 99%

Effects of salinity gradients on the skin and water microbial community and physiological responses of tilapia (Oreochromis niloticus) in the pre‐slaughter

Uehara

Walter

Cunha

et al. 2021

Aquaculture Research

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“…The fish were then deprived of food for 2 days and anesthetized with α-methyl quinoline FIGURE 1. Map depicting location of hatchery Pulau Ketam, Selangor, Malaysia (Transmore R ; Nika Trading, Puchong, Malaysia) (0.22 mL L -1 in 3 L of sea water as dan anasthetic medium for 10-15 min) (Das et al , 2014Noor et al 2018). The process of anaesthetization involved, first of all 3 L of sea water taken in a bowl and added 0.66 mg of α-methyl quinoline and stired vigorously for proper mixing.…”

Section: Sampling and Experimental Setupmentioning

confidence: 99%

Haematological and Biochemical Responses of Juvenile Malabar Blood Snapper (Lutjanus malabaricus Bloch & Schneider, 1801) Exposed to Different Rearing Temperatures and Diets

Mazumder¹

2019

JSM

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This study is conducted to examine the impacts of different rearing temperature and diet variation on haematological and serum biochemical parameters on the juvenile Lutjanus malabaricus, a commercially important fish species in were divided into eight treatments (4 temperatures × 2 diets) each with three replicates of five juveniles each. Fish were subjected to four different rearing temperatures (22, 26, 30 and 34°C) and fed with a commercial pellet and a natural shrimp diet. After 30 days of experimental period, blood samples were collected and transferred into two different tubes from each sample: One containing EDTA as an anticoagulant agent and the other without EDTA for serum collection. All the haematological and biochemical parameters in all the treatments were within the normal range. Changing temperature and diet led to a significant change (p<0.05) in the total length (TL), body weight (BW), red blood cell (RBC), haemoglobin (HB), haematocrit (HC), thrombocyte (TC) and white blood cell (WBC) but the change in mean corpuscular volume (MCV), mean cell haemoglobin (MCH) while mean cell haemoglobin concentration (MCHC) were not significant (p>0.05). The fish reared at 26°C and 30°C had significantly higher values than those reared at 22°C and 34°C (p<0.05). Total protein (TP), albumin (ALB), albumin/globin ration (A/G ratio), alkaline phosphatase (AP), aspartate aminotransferase (AST) and alanine transaminase (ALT) level were also significantly increased at 30°C and 26°C compared to that of 34°C and 22°C. Globulin (GLB) level showed the opposite trend. In all the cases the performances were higher in shrimp diet than pellet diet. It is suggested that these physiological parameters can be conveniently employed as health monitoring tools in fish culture practices. ABSTRAK Kajian ini dijalankan bagi meneliti impak perbezaan suhu dan variasi diet pada parameter hematologi dan serum biokimia pada juvenil Lutjanus malabaricus, satu spesies ikan komersial penting di Malaysia. Ikan (16-18 cm) dibahagikan kepada lapan rawatan (4 suhu × 2 diet) dan terdapat tiga replikat (5 ikan setiap replikat) bagi setiap rawatan. Ikan terdedah kepada empat suhu yang berbeza (22, 26, 30 dan 34°C) dan diberi makan pelet komersial dan diet udang semula jadi. Selepas 30 hari tempoh uji kaji, sampel darah diambil dan dipindahkan ke dalam dua tiub yang berbeza daripada setiap sampel: satu yang mengandungi EDTA sebagai agen antikoagulan dan yang lain tanpa EDTA untuk pengumpulan serum. Semua parameter hematologi dan biokimia dalam semua rawatan berada dalam julat normal. Perubahan suhu dan diet menyebabkan perubahan ketara (p <0.05) dalam jumlah panjang (TL), berat badan (BW), sel darah merah (RBC), hemoglobin (HB), hematokrit (HC), trombosit (TC) dan sel darah putih (WBC) tetapi perubahan jumlah min korpuskul (MCV), min sel hemoglobin (MCH), manakala nilai min kepekatan sel hemoglobin (MCHC) tidak signifikan (p > 0.05). Nilai yang lebih tinggi dilihat pada ikan yang diternak pada 26 dan 30°C daripada yang diternak pada 22 dan 34°C ...

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“…Water temperature also influences the GE process of fish. Besides temperature, GE is also influenced by the following factors: size of food particles (the bigger the food particles the lower the GE), salinity (as salinity increases GE decreases), frequency of consumption (the higher the frequency of consumption the lower the GE), and dietary components (GE is faster in feed with fiber) [ 2 , 3 , 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…lanceolatus ) to other species. Epinephelus lanceolatus is challenging to breed and raise but introducing its superior genetic features into a hybrid allows for a faster growth rate in the hybrids [ 4 ]. The Sabah grouper is developed through the artificial combination of the Giant grouper milt and Tiger grouper eggs.…”

Section: Introductionmentioning

confidence: 99%

Cross Effects of Diets and Rearing Temperatures on Gastrointestinal Evacuation and Growth Performance in Adult Sabah Groupers (Epinephelus fuscoguttatus × E. lanceolatus)

Das

Noor

et al. 2022

Animals

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This study explores the gastrointestinal evacuation time (GET) and gastrointestinal evacuation rate (GER) of the popular Sabah grouper (Epinephelus fuscoguttatus × E. lanceolatus) adults using two established methods (X-radiography and serial slaughter) and square root modeling using different temperatures: 28 °C, 30 °C, 32 °C, and 34 °C and different diets: pellet (ash: 11.4 ± 0.08; moisture: 29.0 ± 0.01; protein 37.5 ± 0.80; lipid 15.0 ± 0.13) and trash fish: Sardinella sp. (ash: 2.3 ± 0.15; moisture: 78.5 ± 0.33; protein 55.4 ± 0.62; lipid 7.3 ± 0.25) and the impact on growth indices. The results indicate that the GET shortened as temperature increased from 28 °C to 30 °C; however, it was prolonged when it surged to 32 °C and 34 °C. The groupers fed with trash fish at a temperature of 30 °C had the shortest GER (0.41 ± 0.10 g hr−1) whereas groupers fed with pellet at 34 °C had the longest GER (0.95 ± 0.02 g hr−1). Likewise, the highest SGR (16.25 ± 2.11 % day−1) was observed at 30 °C for groupers fed with a trash fish diet. The condition (K) value was lowest at 34 °C for groupers fed with a pellet diet (1.01 ± 0.04) and highest at 30 °C for groupers fed with trash fish (1.45 ± 0.04). Our results suggest that temperature and diet influence growth indices and GE of adult Sabah groupers. Incorporation of this information will allow better management of this commercially important grouper species when reared in a controlled aquaculture environment.

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Effect of Salinities on Gastric Emptying and Nutrient Absorption of Tiger Grouper × Giant Grouper (Epinephelus fuscoguttatus × E. lanceolatus) Hybrid

Cited by 4 publications

References 31 publications

Effects of salinity gradients on the skin and water microbial community and physiological responses of tilapia (Oreochromis niloticus) in the pre‐slaughter

Effects of salinity gradients on the skin and water microbial community and physiological responses of tilapia (Oreochromis niloticus) in the pre‐slaughter

Haematological and Biochemical Responses of Juvenile Malabar Blood Snapper (Lutjanus malabaricus Bloch & Schneider, 1801) Exposed to Different Rearing Temperatures and Diets

Cross Effects of Diets and Rearing Temperatures on Gastrointestinal Evacuation and Growth Performance in Adult Sabah Groupers (Epinephelus fuscoguttatus × E. lanceolatus)

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