Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.129063-09
This study investigated the effects of replacing fish meal with Leucaena leucocephala leaf powder on survival,growth performance, digestive enzyme activities, biochemical body composition and muscle texture of the whiteleg shrimp (Penaeus vannamei Boone, 1931). Five different diets were examined, by replacing fish meal withL. leucocephala leaf powder at 0, 5, 10, 15 and 20%, in triplicates. Shrimps were stocked in 0.5 m3 tanks @ 70 shrimps pertank and fed on the experimental diets for a period of 60 days. The results showed that the survival rate (%), daily weightgain (g day-1), specific growth rate (% day-1), feed intake (% fish-1 day-1), feed conversion ratio, protein efficiency ratio, andprotein retention were not significantly different (p>0,05) among the treatment groups. The values of α-amylase and pepsinin the stomach and chymotrypsin (mU min-1 mg protein-1) in the intestine were not significantly different among treatments.However, the value of α-amylase in the intestine was significantly higher in animals fed diets that replaced fish meal withL. leucocephala leaf powder at 0, 5 and 10% compared to other treatments. The biochemical constituents (except for lipid)and the texture (N) of shrimp meat were not significantly different among treatment groups. The results suggested thatL. leucocephala leaf powder could replace fish meal up to 20% in white-leg shrimp diets. Keywords: Digestive enzyme, Growth, Leucaena leucocephala, White-leg shrimp
本试验研究了用银合父叶粉替代鱼粉对凡纳梅对虾(Penaeus vannamei Boone, 1931)的存活率、生长性能、消化酶活性、生化体组成和肌肉组织的影响。研究了五种不同的饮食，用l。白色头状花序叶粉在0,5,10,15和20%，在三次重复。将对虾放养在0.5 m3的水族箱中，每箱70只，饲喂60 d的试验饲料。结果表明:各处理组间的成活率(%)、日增重(g d -1)、特定生长率(% d -1)、采食量(%鱼-1 d -1)、饲料系数、蛋白质效率和蛋白质保留率无显著差异(p < 0.05)。胃α-淀粉酶和胃蛋白酶以及肠糜凝胰蛋白酶(mU min-1 mg蛋白-1)在各处理间无显著差异。然而，用l代替鱼粉的饲料显著提高了肠道α-淀粉酶的含量。与其他处理相比，白头莲叶粉含量为0、5%和10%。各组虾肉的生化成分(除脂类外)和质构(N)无显著差异。结果表明，l。白头叶粉替代鱼粉的比例可达20%。关键词:消化酶，生长，白头银合子，白腿虾
{"title":"Effects of replacing fish meal with different levels of Lead tree (Leucaena leucocephala) leaf powder on growth, survival, digestive enzymes activity, muscle biochemical composition and texture of white-leg shrimp Penaeus vannamei Boone, 1931","authors":"","doi":"10.21077/ijf.2023.70.1.129063-09","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.129063-09","url":null,"abstract":"This study investigated the effects of replacing fish meal with Leucaena leucocephala leaf powder on survival,growth performance, digestive enzyme activities, biochemical body composition and muscle texture of the whiteleg shrimp (Penaeus vannamei Boone, 1931). Five different diets were examined, by replacing fish meal withL. leucocephala leaf powder at 0, 5, 10, 15 and 20%, in triplicates. Shrimps were stocked in 0.5 m3 tanks @ 70 shrimps pertank and fed on the experimental diets for a period of 60 days. The results showed that the survival rate (%), daily weightgain (g day-1), specific growth rate (% day-1), feed intake (% fish-1 day-1), feed conversion ratio, protein efficiency ratio, andprotein retention were not significantly different (p>0,05) among the treatment groups. The values of α-amylase and pepsinin the stomach and chymotrypsin (mU min-1 mg protein-1) in the intestine were not significantly different among treatments.However, the value of α-amylase in the intestine was significantly higher in animals fed diets that replaced fish meal withL. leucocephala leaf powder at 0, 5 and 10% compared to other treatments. The biochemical constituents (except for lipid)and the texture (N) of shrimp meat were not significantly different among treatment groups. The results suggested thatL. leucocephala leaf powder could replace fish meal up to 20% in white-leg shrimp diets.\u0000Keywords: Digestive enzyme, Growth, Leucaena leucocephala, White-leg shrimp","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47940075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.115891-11
A study was conducted with Pacific white-leg shrimp (Penaeus vannamei Boone, 1931) juveniles to ascertain the effect ofmolasses supplementation on the growth performance, culture environment and microbial dynamics of rearing water. Theweight gain at the end of the experiment of 55 days duration were significantly (p<0.05) higher in molasses supplementedgroup (12.08±0.45 g) as compared to control (10.44±0.34 g). Apparent feed conversion ratio (AFCR) was found significantly(p>0.05) lower in case of molasses supplemented group with higher survival percentage. Supplementation of molasses alsoimproved the rearing water quality. The total ammonia nitrogen (TAN) level was significantly (p<0.05) lower in the rearingwater of molasses supplemented tank (2.213±0.165 ppm) compared to control (2.915±0.191 ppm). There was no significantdifference in total heterotrophic bacteria (THB) and total Vibrio (TV) load between the water of the two groups. However,the proportion of TV to THB was significantly lower in case of molasses supplemented group as compared to control. Thisstudy indicated that supplementation of molasses can significantly improve the growth performance of P. vannamei withbetter feed utilisation and also improves the water quality by reducing the level of toxic gas i.e. ammonia in water. Keywords: Ammonia, C:N ratio, Molasses, Vibrio
{"title":"Effect of molasses supplementation on growth performance, water quality and microbial dynamics during indoor rearing of pacific white shrimp Penaeus vannamei Boone, 1931","authors":"","doi":"10.21077/ijf.2023.70.1.115891-11","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.115891-11","url":null,"abstract":"A study was conducted with Pacific white-leg shrimp (Penaeus vannamei Boone, 1931) juveniles to ascertain the effect ofmolasses supplementation on the growth performance, culture environment and microbial dynamics of rearing water. Theweight gain at the end of the experiment of 55 days duration were significantly (p<0.05) higher in molasses supplementedgroup (12.08±0.45 g) as compared to control (10.44±0.34 g). Apparent feed conversion ratio (AFCR) was found significantly(p>0.05) lower in case of molasses supplemented group with higher survival percentage. Supplementation of molasses alsoimproved the rearing water quality. The total ammonia nitrogen (TAN) level was significantly (p<0.05) lower in the rearingwater of molasses supplemented tank (2.213±0.165 ppm) compared to control (2.915±0.191 ppm). There was no significantdifference in total heterotrophic bacteria (THB) and total Vibrio (TV) load between the water of the two groups. However,the proportion of TV to THB was significantly lower in case of molasses supplemented group as compared to control. Thisstudy indicated that supplementation of molasses can significantly improve the growth performance of P. vannamei withbetter feed utilisation and also improves the water quality by reducing the level of toxic gas i.e. ammonia in water.\u0000Keywords: Ammonia, C:N ratio, Molasses, Vibrio","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47911823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.121903-15
The feasibility of using silkworm pupae meal and black soldier fly larvae meal in combination to replace fish meal inkoi carp fry was assessed. Two weeks-old koi fry (2.47±0.15 cm, 0.28±0.06 g) were used as experimental animals. Fouriso-nitrogenous experimental diets (T1, T2, T3, T4) with 35±0.37% crude protein were formulated. In T1, T2 and T3,50% of fish meal was replaced with silkworm pupae meal and black soldier fly larvae meal at different combinations, i.e.,T1 (25:75), T2 (50:50), T3 (75:25). In T4, 100% of fish meal was replaced with silkworm pupae meal and black soldier flylarvae meal at 50:50 ratio. Present research findings showed that T2 diet-fed fishes performed significantly better (p<0.05)than other diets in all the growth parameters viz., mean length gain (3.13±0.01 cm), mean weight gain (3.13±0.02 g),percentage length gain (127±0.71%), percentage weight gain (1118±7.07%), specific growth rate (4.16±0.01%/day),feed conversion ratio (1.30±0.01), feed efficiency ratio (0.76±0.01), protein efficiency ratio (2.18±0.01) and survival rate(28±1.41%). Digestive enzyme activities were also higher in T2 diet-fed fishes. Therefore, insect meal can be effectivelyutilised to replace fish meal in the diet of koi fry. Keywords: Black soldier fly larvae meal, Digestive enzymes, Growth performance, Koi carp fry, Silkworm pupae meal
评价了蚕蛹粉和黑虻幼虫粉组合替代鱼粉鲤鱼鱼苗的可行性。以2周龄的锦鲤鱼苗(2.47±0.15 cm, 0.28±0.06 g)为实验动物。配制粗蛋白质含量为35±0.37%的四氮试验饲粮(T1、T2、T3、T4)。在T1、T2和T3阶段，将50%的鱼粉替换为蚕蛹粉和黑虻幼虫粉，并以不同的组合，即T1(25:75)、T2(50:50)、T3(75:25)。T4期以蚕蛹粉和黑兵蝇粉50:50的比例代替100%的鱼粉。本研究结果表明，T2饲粮在平均增长(3.13±0.01 cm)、平均增重(3.13±0.02 g)、增长百分比(127±0.71%)、增重百分比(1118±7.07%)、特定生长率(4.16±0.01%/d)、饲料系数(1.30±0.01)、饲料效率(0.76±0.01)、蛋白质效率(2.18±0.01)和成活率(28±1.41%)方面均显著优于其他饲粮(p<0.05)。T2日粮鱼的消化酶活性也较高。因此，可以有效地利用昆虫粉替代鱼粉在锦鲤鱼苗饲料中。关键词:黑虻幼虫粉，消化酶，生长性能，锦鲤苗，蚕蛹粉
{"title":"Effect of replacement of dietary fish meal with silkworm pupae meal and black soldier fly larvae meal as a combination diet on the growth and digestive performance of koi carp Cyprinus carpio var. koi in the nursery phase","authors":"","doi":"10.21077/ijf.2023.70.1.121903-15","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.121903-15","url":null,"abstract":" The feasibility of using silkworm pupae meal and black soldier fly larvae meal in combination to replace fish meal inkoi carp fry was assessed. Two weeks-old koi fry (2.47±0.15 cm, 0.28±0.06 g) were used as experimental animals. Fouriso-nitrogenous experimental diets (T1, T2, T3, T4) with 35±0.37% crude protein were formulated. In T1, T2 and T3,50% of fish meal was replaced with silkworm pupae meal and black soldier fly larvae meal at different combinations, i.e.,T1 (25:75), T2 (50:50), T3 (75:25). In T4, 100% of fish meal was replaced with silkworm pupae meal and black soldier flylarvae meal at 50:50 ratio. Present research findings showed that T2 diet-fed fishes performed significantly better (p<0.05)than other diets in all the growth parameters viz., mean length gain (3.13±0.01 cm), mean weight gain (3.13±0.02 g),percentage length gain (127±0.71%), percentage weight gain (1118±7.07%), specific growth rate (4.16±0.01%/day),feed conversion ratio (1.30±0.01), feed efficiency ratio (0.76±0.01), protein efficiency ratio (2.18±0.01) and survival rate(28±1.41%). Digestive enzyme activities were also higher in T2 diet-fed fishes. Therefore, insect meal can be effectivelyutilised to replace fish meal in the diet of koi fry.\u0000Keywords: Black soldier fly larvae meal, Digestive enzymes, Growth performance, Koi carp fry, Silkworm pupae meal","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47913907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.122905-07
S. Gomathy, E. Vivekanandan, Sandhya Sukumaran
Goatfishes (Family: Mullidae) are commercially important fishery resource along the Chennai coast, south-eastern India.Species-level identification of goatfishes is a challenge, particularly in the ‘vittatus’ group, as there is severe overlapof taxonomic characteristics. In 2010, Uiblein and Heemstra revised the Family Mullidae and reported the occurrenceof Upeneus supravittatus along the Indian coast. They also remarked that U. supravittatus has been misidentified asU. taeniopterus in earlier reports from India. To resolve this and verify the occurrence of U. supravittatus, 15 morphometriccharacteristics and 13 meristic characteristics of goatfish samples collected at Chennai were analysed and compared withthe corresponding data reported by Uiblein and Heemstra for U. taeniopterus and four other ‘vittatus’ group goat fishes. Theanalysis, as well as DNA bar coding and area of distribution of species confirmed the samples as Upeneus supravittatus.The gill raker count on the upper and lower limbs of first gill arch was an important key in identifying the species. Thoughthe number of gill rakers was almost similar for U. supravittatus, U. vittatus and U. taeniopterus, the size and position ofthe gill rakers confirmed that the collected samples were all U. supravittatus. The study also indicates the possibility thatU. supravittatus has been hitherto wrongly reported as U. taeniopterus. A detailed taxonomic study on the Family Mullidaeneeds to be undertaken along the Indian coast using morphometric and meristic characteristics and DNA barcoding toresolve these taxonomic issues. Keywords: DNA barcoding, Gill rakers, Species identification, ‘vittatus’ group
{"title":"Occurrence of longfin goatfish Upeneus supravittatus (Uiblein and Heemstra, 2010) along Chennai coast, south India","authors":"S. Gomathy, E. Vivekanandan, Sandhya Sukumaran","doi":"10.21077/ijf.2023.70.1.122905-07","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.122905-07","url":null,"abstract":" Goatfishes (Family: Mullidae) are commercially important fishery resource along the Chennai coast, south-eastern India.Species-level identification of goatfishes is a challenge, particularly in the ‘vittatus’ group, as there is severe overlapof taxonomic characteristics. In 2010, Uiblein and Heemstra revised the Family Mullidae and reported the occurrenceof Upeneus supravittatus along the Indian coast. They also remarked that U. supravittatus has been misidentified asU. taeniopterus in earlier reports from India. To resolve this and verify the occurrence of U. supravittatus, 15 morphometriccharacteristics and 13 meristic characteristics of goatfish samples collected at Chennai were analysed and compared withthe corresponding data reported by Uiblein and Heemstra for U. taeniopterus and four other ‘vittatus’ group goat fishes. Theanalysis, as well as DNA bar coding and area of distribution of species confirmed the samples as Upeneus supravittatus.The gill raker count on the upper and lower limbs of first gill arch was an important key in identifying the species. Thoughthe number of gill rakers was almost similar for U. supravittatus, U. vittatus and U. taeniopterus, the size and position ofthe gill rakers confirmed that the collected samples were all U. supravittatus. The study also indicates the possibility thatU. supravittatus has been hitherto wrongly reported as U. taeniopterus. A detailed taxonomic study on the Family Mullidaeneeds to be undertaken along the Indian coast using morphometric and meristic characteristics and DNA barcoding toresolve these taxonomic issues.\u0000Keywords: DNA barcoding, Gill rakers, Species identification, ‘vittatus’ group","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43726321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.100596-04
H. Bal, Umerhan Durrani, Kadir Seyhan
The effects of meal size and body size on gastric evacuation rates were parameterised for European seabass Dicentrarchus labrax (Linnaeus, 1758). A total of three gastric evacuation experiments were performed on small (15.7±0.8 cm) and large (21.5±0.4) size fish forced-fed with meals of 0.5 and 1.5 g composed of commercial pellets. The stomach contents were then recovered by serial slaughtering the fish at predetermined post-prandial times. The surface-area dependent function adequately describes the gastric evacuation in European seabass independently of meal size. A power function of fish length L was then employed to evaluate the impact of body size, revealing its notable effect on gastric evacuation rates of European seabass. Keywords: Aquaculture, Feeding regimes, General power function, Surface-area dependent
{"title":"Gastric evacuation in European seabass Dicentrarchus labrax (Linnaeus, 1758), forced-fed on commercial pellets","authors":"H. Bal, Umerhan Durrani, Kadir Seyhan","doi":"10.21077/ijf.2023.70.1.100596-04","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.100596-04","url":null,"abstract":"The effects of meal size and body size on gastric evacuation rates were parameterised for European seabass Dicentrarchus labrax (Linnaeus, 1758). A total of three gastric evacuation experiments were performed on small (15.7±0.8 cm) and large (21.5±0.4) size fish forced-fed with meals of 0.5 and 1.5 g composed of commercial pellets. The stomach contents were then recovered by serial slaughtering the fish at predetermined post-prandial times. The surface-area dependent function adequately describes the gastric evacuation in European seabass independently of meal size. A power function of fish length L was then employed to evaluate the impact of body size, revealing its notable effect on gastric evacuation rates of European seabass. Keywords: Aquaculture, Feeding regimes, General power function, Surface-area dependent","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46966651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.83950-02
This study was carried out to assess the spatial patterns of morphological characteristics of the three cultured populations of the scallop Mimachlamys crassicostata (G. B. Sowerby II, 1842), from Yazhou Bay, Liusha Bay and Mirs Bay along the South China Sea coast and to determine whether any of the morphological characteristics could be related to selected environmental parameters. Morphological ratios of seven traits were analysed by classification and regression tree to evaluate the morphological variations in 1353 samples from three geographic locations. In addition, relationships between discriminatory morphological characteristics (ratios of shell weight to length, shell weight to height, whole weight to length and shell weight to adductor muscle weight) and nine environmental parameters (seawater temperature, salinity, pH, chemical oxygen demand, dissolved inorganic nitrogen, active phosphate, total petroleum hydrocarbons, dissolved oxygen (DO) and chlorophyll a were assessed using mixed-effects linear models (LMMs). Results showed that more than 80% of individuals could be assigned to their collection locations based on the classification and regression tree. The accuracy of assigning individuals to their collection location of Mirs Bay, Yazhou Bay and Liusha Bay based on morphological variation was 85.52, 80.30 and 80.68%, respectively. Results of the LMMs revealed that ratios of shell weight to height and whole weight to length correlated positively with temperature and salinity, respectively. Shell weight to adductor muscle weight correlated negatively with DO concentration, indicating that high DO levels may be necessary to provide a suitable environment for scallops cultured in a food-rich coastal bay. These results may be helpful for future resource management, including stock recognition, productive management and stock conservation of M. crassicostata in the South China Sea.Keywords: Environmental parameters, Cultured population, Mixed-effects linear model, Morphological characteristics, Stock conservation
{"title":"Morphological trends in three different populations of the noble scallop Mimachlamys crassicostata (G. B. Sowerby II, 1842) along the South China Sea Coast and their relationship to environment factors","authors":"","doi":"10.21077/ijf.2023.70.1.83950-02","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.83950-02","url":null,"abstract":"This study was carried out to assess the spatial patterns of morphological characteristics of the three cultured populations of the scallop Mimachlamys crassicostata (G. B. Sowerby II, 1842), from Yazhou Bay, Liusha Bay and Mirs Bay along the South China Sea coast and to determine whether any of the morphological characteristics could be related to selected environmental parameters. Morphological ratios of seven traits were analysed by classification and regression tree to evaluate the morphological variations in 1353 samples from three geographic locations. In addition, relationships between discriminatory morphological characteristics (ratios of shell weight to length, shell weight to height, whole weight to length and shell weight to adductor muscle weight) and nine environmental parameters (seawater temperature, salinity, pH, chemical oxygen demand, dissolved inorganic nitrogen, active phosphate, total petroleum hydrocarbons, dissolved oxygen (DO) and chlorophyll a were assessed using mixed-effects linear models (LMMs). Results showed that more than 80% of individuals could be assigned to their collection locations based on the classification and regression tree. The accuracy of assigning individuals to their collection location of Mirs Bay, Yazhou Bay and Liusha Bay based on morphological variation was 85.52, 80.30 and 80.68%, respectively. Results of the LMMs revealed that ratios of shell weight to height and whole weight to length correlated positively with temperature and salinity, respectively. Shell weight to adductor muscle weight correlated negatively with DO concentration, indicating that high DO levels may be necessary to provide a suitable environment for scallops cultured in a food-rich coastal bay. These results may be helpful for future resource management, including stock recognition, productive management and stock conservation of M. crassicostata in the South China Sea.Keywords: Environmental parameters, Cultured population, Mixed-effects linear model, Morphological characteristics, Stock conservation","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49135272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.132803-06
Mukaddim Mukhsheet Ahmed Hazarika, Shivendra Kumar, Sujit Kumar Nayak, Rajive Kumar Brahmchari, A.Naveen kumar, Pravesh Kumar, H. S. Mogalekar, P. P. Srivastava
An experiment was performed in a recirculatory aquaculture system (RAS) to carry out a comparative study on the growth performance and survival of Indian major carps (Labeo rohita and Gibelion catla) and monosex tilapia (Oreochromis niloticus) fingerlings for a period of 90 days. Ten fingerlings each of L. rohita (average weight 30±0.1 g), G. catla(average weight 28±0.1 g) and O. niloticus (average weight 31.5±0.2 g) were distributed randomly into twelve cages, in quadruplicates. L. rohita and G. catla were fed commercial floating feed (30% crude protein and 5% crude lipid) ad libitum while O. niloticus were initially fed at 3% of the body weight upto 100 g size and was changed to 2% of the body weight. There was significant (p<0.05) increase of daily weight gain, percentage weight gain and specific growth rate (SGR) in O. niloticus followed by L. rohita and G. catla. Significantly lower (p<0.05) feed conversion ratio (FCR) and higher (p<0.05) protein efficiency ratio (PER), protein productive value (PPV) and lipid productive value (LPV) were found in O. niloticus followed by L. rohita and G. catla. At the end of the experiment, survival was similar for all three fish species, however total biomass was significantly (p<0.05) higher in O. niloticus followed by L. rohita and G. catla. The findings of this study showed the potential of RAS as an alternative to the pond culture of monosex tilapia and rohu.Keywords: Growth performance, Indian major carps, Monosex tilapia, Survival, Recirculatory aquaculture system
{"title":"Comparative study on growth performance and survival of Indian major carps and male monosex tilapia in recirculating aquaculture system","authors":"Mukaddim Mukhsheet Ahmed Hazarika, Shivendra Kumar, Sujit Kumar Nayak, Rajive Kumar Brahmchari, A.Naveen kumar, Pravesh Kumar, H. S. Mogalekar, P. P. Srivastava","doi":"10.21077/ijf.2023.70.1.132803-06","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.132803-06","url":null,"abstract":"An experiment was performed in a recirculatory aquaculture system (RAS) to carry out a comparative study on the growth performance and survival of Indian major carps (Labeo rohita and Gibelion catla) and monosex tilapia (Oreochromis niloticus) fingerlings for a period of 90 days. Ten fingerlings each of L. rohita (average weight 30±0.1 g), G. catla(average weight 28±0.1 g) and O. niloticus (average weight 31.5±0.2 g) were distributed randomly into twelve cages, in quadruplicates. L. rohita and G. catla were fed commercial floating feed (30% crude protein and 5% crude lipid) ad libitum while O. niloticus were initially fed at 3% of the body weight upto 100 g size and was changed to 2% of the body weight. There was significant (p<0.05) increase of daily weight gain, percentage weight gain and specific growth rate (SGR) in O. niloticus followed by L. rohita and G. catla. Significantly lower (p<0.05) feed conversion ratio (FCR) and higher (p<0.05) protein efficiency ratio (PER), protein productive value (PPV) and lipid productive value (LPV) were found in O. niloticus followed by L. rohita and G. catla. At the end of the experiment, survival was similar for all three fish species, however total biomass was significantly (p<0.05) higher in O. niloticus followed by L. rohita and G. catla. The findings of this study showed the potential of RAS as an alternative to the pond culture of monosex tilapia and rohu.Keywords: Growth performance, Indian major carps, Monosex tilapia, Survival, Recirculatory aquaculture system","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45483165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.130207-12
T. Sivaramakrishnan, Syama Dayal J, A. K., F. N., Sandeep K.P., Aritra Bera, Kumaraguru Vasagam K.P., Thiyagarajan G, K. M
Amino acid (AA) and fatty acid (FA) composition of the fertilised eggs and different larval stages (at 0, 3, 6, 9, 12, 15 and21 days post-hatch, dph) of Chanos chanos was investigated. The total indispensable amino acids (IAA) contributed to55.62% of the total AA in the egg which reduced to 52.54% on 6 dph. The AA profile of C. chanos was found to be rich invaline (7.99%), leucine (7.51%) and lysine (6.98%) and poor in histidine (2.36%) and methionine (2.47%), indicating a highvaline, leucine and lysine requirement. The docosahexaenoic acid (DHA) content recorded for egg, newly hatched larvae(NHL) and 21 dph larvae were 2.77, 1.36 and 1.94 mg g-1, respectively. The reduction of fatty acids (FAs) was found to bevery high in newly hatched larvae (NHL), especially that of DHA (51%), ARA (26%) and EPA (24%), which indicates thesignificance of these FAs during the embryogenesis of milkfish egg. The trend observed during different stages of AAs andFAs content indicates their requirement during the larval period and those values are to be considered while formulatingfeeds for larval stages of milkfish. Keywords: Embryogenesis, Larval feed, Milkfish larvae, Nutrient requirement
{"title":"Amino acid and fatty acid compositions of various stages of Chanos chanos larvae: Implications for larval feed formulation","authors":"T. Sivaramakrishnan, Syama Dayal J, A. K., F. N., Sandeep K.P., Aritra Bera, Kumaraguru Vasagam K.P., Thiyagarajan G, K. M","doi":"10.21077/ijf.2023.70.1.130207-12","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.130207-12","url":null,"abstract":" Amino acid (AA) and fatty acid (FA) composition of the fertilised eggs and different larval stages (at 0, 3, 6, 9, 12, 15 and21 days post-hatch, dph) of Chanos chanos was investigated. The total indispensable amino acids (IAA) contributed to55.62% of the total AA in the egg which reduced to 52.54% on 6 dph. The AA profile of C. chanos was found to be rich invaline (7.99%), leucine (7.51%) and lysine (6.98%) and poor in histidine (2.36%) and methionine (2.47%), indicating a highvaline, leucine and lysine requirement. The docosahexaenoic acid (DHA) content recorded for egg, newly hatched larvae(NHL) and 21 dph larvae were 2.77, 1.36 and 1.94 mg g-1, respectively. The reduction of fatty acids (FAs) was found to bevery high in newly hatched larvae (NHL), especially that of DHA (51%), ARA (26%) and EPA (24%), which indicates thesignificance of these FAs during the embryogenesis of milkfish egg. The trend observed during different stages of AAs andFAs content indicates their requirement during the larval period and those values are to be considered while formulatingfeeds for larval stages of milkfish.\u0000Keywords: Embryogenesis, Larval feed, Milkfish larvae, Nutrient requirement","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45079270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.121096-13
J. Syama Dayal, R. Jannathulla, K. Ambasankar, H. Imran Khan, E. P. Madhubabu, M. Muralidhar
Sixty days feeding trial was conducted to study the effect of dietary soy-lecithin (phosphatidylcholine) as a source ofphospholipids on the growth performance of Penaeus monodon (Fabricius, 1798) reared at hyperosmotic stress conditions(40‰) in indoor tanks. Four experimental diets viz., DL-1 (Control), DL-1.5, DL-2 and DL-2.5 were formulated by includingsoy-lecithin at the rate of 1, 1.5, 2 and 2.5%, respectively. The results revealed that the daily growth coefficient (DGC)significantly (p<0.05) increased from 1.44 to 1.67% day-1 when the inclusion levels were increased from 1 to 2.5%. Therelative growth rate (RGR) was significantly (p<0.05) high in the groups fed on DL-2 and DL-2.5 diets than in the groupsfed other diets (DL-1 and DL-1.5). Compared to DL-1, all the other diets (DL-1.5, DL-2 and DL-2.5) had increased DGCby 7.81, 11.06 and 15.89% and decreased feed conversion ratio (FCR) by 8.70, 8.83 and 9.56%, respectively. The dietarytreatments had no significant difference in survival (75.56-82.22%) and carcass composition except body lipid, which wassignificantly (p<0.05) high (3.66%) in DL-2 and DL-2.5 fed groups compared to DL-1 and DL-1.5 (3.25-3.42%). Carcassphospholipids increased (p<0.05) from 61.96 to 69.69% with increasing dietary soy-lecithin levels, while triacylglycerides(p>0.05) and cholesterol (p>0.05) were not affected. The inclusion levels of soy-lecithin had no significant influence on thefatty acid composition of P. monodon except for C16:0 and C18:2c, which were high (p<0.05) in the groups fed DL-2 andDL-2.5 diets. Results concluded that soy-lecithin as a source of phospholipids can be more effective at hyperosmotic stressconditions and could be included at >2.5% in the diet of P. monodon. Keywords: Carcass composition, Hyperosmotic stress, Penaeus monodon, Phospholipids, Salinity, Soy-lecithin
{"title":"Effect of dietary soy-lecithin on growth and body composition of Indian black tiger shrimp Penaeus monodon (Fabricius, 1798) reared under hyperosmotic stress condition","authors":"J. Syama Dayal, R. Jannathulla, K. Ambasankar, H. Imran Khan, E. P. Madhubabu, M. Muralidhar","doi":"10.21077/ijf.2023.70.1.121096-13","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.121096-13","url":null,"abstract":" Sixty days feeding trial was conducted to study the effect of dietary soy-lecithin (phosphatidylcholine) as a source ofphospholipids on the growth performance of Penaeus monodon (Fabricius, 1798) reared at hyperosmotic stress conditions(40‰) in indoor tanks. Four experimental diets viz., DL-1 (Control), DL-1.5, DL-2 and DL-2.5 were formulated by includingsoy-lecithin at the rate of 1, 1.5, 2 and 2.5%, respectively. The results revealed that the daily growth coefficient (DGC)significantly (p<0.05) increased from 1.44 to 1.67% day-1 when the inclusion levels were increased from 1 to 2.5%. Therelative growth rate (RGR) was significantly (p<0.05) high in the groups fed on DL-2 and DL-2.5 diets than in the groupsfed other diets (DL-1 and DL-1.5). Compared to DL-1, all the other diets (DL-1.5, DL-2 and DL-2.5) had increased DGCby 7.81, 11.06 and 15.89% and decreased feed conversion ratio (FCR) by 8.70, 8.83 and 9.56%, respectively. The dietarytreatments had no significant difference in survival (75.56-82.22%) and carcass composition except body lipid, which wassignificantly (p<0.05) high (3.66%) in DL-2 and DL-2.5 fed groups compared to DL-1 and DL-1.5 (3.25-3.42%). Carcassphospholipids increased (p<0.05) from 61.96 to 69.69% with increasing dietary soy-lecithin levels, while triacylglycerides(p>0.05) and cholesterol (p>0.05) were not affected. The inclusion levels of soy-lecithin had no significant influence on thefatty acid composition of P. monodon except for C16:0 and C18:2c, which were high (p<0.05) in the groups fed DL-2 andDL-2.5 diets. Results concluded that soy-lecithin as a source of phospholipids can be more effective at hyperosmotic stressconditions and could be included at >2.5% in the diet of P. monodon.\u0000Keywords: Carcass composition, Hyperosmotic stress, Penaeus monodon, Phospholipids, Salinity, Soy-lecithin","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44021556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.21077/ijf.2023.70.1.92533-19
A. Pandit, A. Ekka, D. Biswas, L. Chakraborty, D. Meena, Vikash Kumar
The floodplain wetlands or the oxbow lakes support millions of rural poor for earning their livelihood and nutritionalsecurity. The present study was conducted among the fisher households in two floodplain wetlands (locally known asbeel) of West Bengal (Kholsi and Akaipur) and one in Assam (Deepor). One hundred fisher households from West Bengaland 80 fisher households from Assam were selected using simple random sampling method. The study indicated that thesocio-economic conditions of the fisher households based on the level of education, operational holdings and off farmincome were well below the desired level. Fishing was the major occupation of around 70% of the fishers of West Bengaland 90% of fishers of Assam. The fishery contributed more than 60% of the household income to 42% fishers of West Bengaland 90% of fishers of Assam. In Deepor Beel it was found that no fisher household received less than 40% of their livelihoodfrom the beel. Further, the study showed that beel fishes were the only source of animal protein to more than 71% of thehouseholds of Deepor Beel. Similarly, more than 68% of households in West Bengal beels obtained animal proteins throughfishes caught in the beel itself. For sustainable use of wetland resources and to ensure livelihood and food security, there isa need to design appropriate management strategies. Arrangement of supplementary livelihood options was prescribed forthe fishers to reduce the fishing pressure on the wetlands. Keywords: Animal protein, Assam, Fishers, Floodplain wetlands, Livelihood, West Bengal
{"title":"Contribution of floodplain wetland (beel) fisheries to livelihood and nutritional security of fishers in Eastern India","authors":"A. Pandit, A. Ekka, D. Biswas, L. Chakraborty, D. Meena, Vikash Kumar","doi":"10.21077/ijf.2023.70.1.92533-19","DOIUrl":"https://doi.org/10.21077/ijf.2023.70.1.92533-19","url":null,"abstract":" The floodplain wetlands or the oxbow lakes support millions of rural poor for earning their livelihood and nutritionalsecurity. The present study was conducted among the fisher households in two floodplain wetlands (locally known asbeel) of West Bengal (Kholsi and Akaipur) and one in Assam (Deepor). One hundred fisher households from West Bengaland 80 fisher households from Assam were selected using simple random sampling method. The study indicated that thesocio-economic conditions of the fisher households based on the level of education, operational holdings and off farmincome were well below the desired level. Fishing was the major occupation of around 70% of the fishers of West Bengaland 90% of fishers of Assam. The fishery contributed more than 60% of the household income to 42% fishers of West Bengaland 90% of fishers of Assam. In Deepor Beel it was found that no fisher household received less than 40% of their livelihoodfrom the beel. Further, the study showed that beel fishes were the only source of animal protein to more than 71% of thehouseholds of Deepor Beel. Similarly, more than 68% of households in West Bengal beels obtained animal proteins throughfishes caught in the beel itself. For sustainable use of wetland resources and to ensure livelihood and food security, there isa need to design appropriate management strategies. Arrangement of supplementary livelihood options was prescribed forthe fishers to reduce the fishing pressure on the wetlands.\u0000Keywords: Animal protein, Assam, Fishers, Floodplain wetlands, Livelihood, West Bengal","PeriodicalId":50372,"journal":{"name":"Indian Journal of Fisheries","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48176164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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