Effects of delayed first feeding on nutritional condition of tiger grouper, Epinephelus fuscoguttatus (Forsskål, 1775) larvae

Ching, Fui Fui; Nakagawa, Yoshizumi; Kato, Keitaro; Miyashita, Shigeru; Senoo, Shigeharu

doi:10.1016/j.aqrep.2016.04.001

Cited by 10 publications

(14 citation statements)

References 8 publications

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“…Digestive tract adjustments, like changing organ size or length (Bergot, Blanc & Escaffre, 1981) and rates of protein synthesis, retention and degradation (Carter & Houlihan, 2001), are often associated with the amount of nutrients and energy that fish consume and assimilate. A multitude of studies have shown that the response of the digestive tract will vary with the intensity of the energetic demand imposed on the animal (Naya et al, 2007), the frequency of feeding in nature (Secor & Diamond, 2000;Secor, 2005aSecor, , 2005b, the time to and type of first feed consumed by fish larvae (Kolkovski, 2001;Ching et al, 2016), the environmental conditions experienced by different populations of the same species (Kristan & Hammond, 2003;Bacigalupe et al, 2004;Tracy & Diamond, 2005), and the level of environmental variability under which different species have evolved (Naya, Bozinovic & Karasov, 2008). When fed ad libitum and reared in the same environmental conditions, phenotypic changes that result in an increase in the functional capacity of the digestive system are likely to lead to better performance and interindividual differences in fish growth.…”

Section: The Digestive Phenotypementioning

confidence: 99%

“…In larval tiger grouper (Epinephelus fuscoguttatus), delaying first feeding to 6 h after mouth opening resulted in an almost 50 % reduction in the height of the gut epithelium, causing delays in fish development and reduced growth (Ching et al, 2016). The type of food a larval fish first eats can also play a significant role in the capacity of their gastrointestinal tract.…”

Section: The Digestive Phenotypementioning

confidence: 99%

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Why do some fish grow faster than others?

Goodrich¹,

Clark²

2023

Preprint

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All animals must acquire food to grow, but there is a vast diversity in how different species and even different individuals approach and achieve this task. Individuals within a species appear to fall along a bold-shy continuum, whereby some fish acquire food aggressively and with seemingly high risk, while others appear more submissive and opportunistic. Greater food consumption generally results in faster growth, but only if the energy acquired through food is more than enough to compensate for heightened metabolism associated with a more active lifestyle. Fast-growing phenotypes also tend to have elevated baseline metabolism – at least when food is plentiful – which may be linked with gut morphology and digestive efficiency. The net energy gained from a meal (as calculated from the specific dynamic action (SDA) coefficient) is optimised with larger meal sizes, but the digestion of large meals can erode the aerobic metabolic scope available for other critical activities such as predator avoidance, perhaps at an interindividual level. Thus, complex interactions between an individual’s genes and environment are likely to regulate the growth phenotype. This review compiles available knowledge to shed light on the question: Why do some fish grow faster than others? We discuss the elaborate interrelationships between behaviour, physiology and the gut microbiome with a goal to better understand what drives intraspecific differences in growth performance.

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Section: The Digestive Phenotypementioning

confidence: 99%

Section: The Digestive Phenotypementioning

confidence: 99%

Why do some fish grow faster than others?

Goodrich¹,

Clark²

2023

Preprint

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“…Thời điểm cho ăn thích hợp có sự khác biệt lớn giữa các loài. Trên các đối tượng đã nghiên cứu, khoảng thời gian này dao động từ một tới vài ngày, cụ thể là 30 -36 giờ đối với cá tra Pangasianodon hypophthalmus [23] và cá bống tượng Oxyeleotris marmorata [19]; 2 ngày với cá trạng nguyên vàng Siniperca scherzeri [10], cá mú cọp Epinephelus fuscoguttatus [24], cá chẽm Lates calcarifer [13]; 3 ngày với cá bơn California Paralichthys californicus [22]; 5 ngày với cá nóc Takifugu obscurus [25]; và 8 ngày với cá rô phi Oreochromis niloticus [26]. Như vậy, thời gian tiêu hóa hết noãn hoàng và thời điểm cung cấp thức ăn ở nhóm cá khoang cổ sớm hơn so với một số loài đã được nghiên cứu, trong vòng 12 giờ sau nở.…”

Section: Thảo Luậnunclassified

ẢNH HƯỞNG CỦA THỜI ĐIỂM CHO ĂN LÊN SINH TRƯỞNG VÀ TỶ LỆ SỐNG CỦA CÁ KHOANG CỔ ĐỎ (Amphiprion frenatus Brevoort, 1856)

Trang¹,

Hoàng²,

Dũng³

2022

TNUJST

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Nghiên cứu được thực hiện nhằm đánh giá ảnh hưởng của thời điểm bắt đầu cho ăn lên sinh trưởng và tỷ lệ sống của ấu trùng cá khoang cổ đỏ. Ấu trùng mới nở được ương với 5 chế độ cho ăn gồm 0 giờ, 12 giờ, 24 giờ, 36 giờ và 48 giờ sau khi nở. Ấu trùng được ương trong các bể kính với mật độ khoảng 1,0 con/lít, được cho ăn bằng luân trùng kết hợp với nauplius Artemia. Mỗi nghiệm thức được thực hiện với 3 lần lặp trong 45 ngày. Kết quả nghiên cứu cho thấy ấu trùng được cho ăn trong vòng 0 – 12 giờ sau khi nở đạt các chỉ tiêu tăng trưởng (LG, WG, SGRL, SGRW) lớn nhất, tiếp theo là 24 giờ và thấp nhất ở 36 - 48 giờ (P < 0,05). Thời điểm cho ăn cũng ảnh hưởng đến tỷ lệ sống của cá, với xu hướng chung là càng cho ăn muộn, tỷ lệ sống càng giảm (72,2 – 77,8% ở 0 – 12 giờ so với 23,6 – 30,0% ở 36 – 48 giờ; P < 0,05). Từ nghiên cứu này có thể kết luận rằng, ấu trùng cá khoang cổ đỏ nên được cho ăn trong vòng 12 giờ sau khi nở nhằm đạt được các chỉ tiêu tăng trưởng và tỷ lệ sống tối ưu.

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“…Tiger grouper (Epinephelus fuscoguttatus, Forsskål, 1775) is an excellent mariculture species mainly due to its fast growth rate and high market prices (Apines-Amar et al 2012, Ching et al 2016. This species widely distributed in the indo-pacific region from the red sea and eastern Africa, as far east as Samoa and the phoenix islands, north to Japan and down to the south to Australia (Sugama et al 2012, Rimmer andGlamuzina 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, backyard hatcheries now making significant contributions to the farmers" incomes, job opportunities and export earnings (Siar et al 2001). Despite massive mortality at the early larval stage remains a foremost constraint to further improved the production (Ching et al 2012), proper understanding on nutritional condition (Ching et al 2016), sinking syndrome-related death (Fui et al 2016), environmental quality (Toledo et al 2004), cannibalism (Salari et al 2012 and diseases infection (Sohn andPark 1998, Tucker 2003) become an important strategy for the fish farmer in Situbondo to increase the production efficiency and survival rate.…”

Section: Introductionmentioning

confidence: 99%

Mini Review: Production and Economics Analysis Of Backyard Production of Tiger Grouper Epinephelus Fuscoguttatus Fingerlings in Situbondo, Indonesia

Novriadi

2019

FishtecH

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Application of backyard technology to produce tiger grouper fingerlings in the area of Situbondo is examined with emphasis on production system and economic structure. Complete hatcheries production system that employ full production systems from broodstock, maturation, spawning, larviculture and early nursery phase are common in this area. Natural spawning activities without the use of hormone or another chemical substance become the primary method to produce the larvae. Hatchery in Situbondo typically consist with concrete tank to culture the larva, sand filter and live food production tanks, including phytoplankton production system. While the nursery production system as an intermediate step between hatchery and grow-out production consist with concrete tank and grading system to reduce the size variation, cannibalism and to ensure there is no more than 30% difference in total length between the grade sizes within the culture tanks. The output of the economic analysis showed that with final survival rate about 10%, farmer in Situbondo still get a good annual return through the sales of fingerlings. From this situation, farmer still obtain high cash flow from backyard production system and about 69.06% rate of return to capital. Overall, backyard technology consists with hatchery and early nursery production system provide potential sources for poverty alleviation and support the sustainability of aquaculture production in Situbondo. Good economic structure and opportunity to participate in several government programs speed up the adoption of this technology and become an important chain for tiger grouper production system in Indonesia.

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Effects of delayed first feeding on nutritional condition of tiger grouper, Epinephelus fuscoguttatus (Forsskål, 1775) larvae

Cited by 10 publications

References 8 publications

Why do some fish grow faster than others?

Why do some fish grow faster than others?

ẢNH HƯỞNG CỦA THỜI ĐIỂM CHO ĂN LÊN SINH TRƯỞNG VÀ TỶ LỆ SỐNG CỦA CÁ KHOANG CỔ ĐỎ (Amphiprion frenatus Brevoort, 1856)

Mini Review: Production and Economics Analysis Of Backyard Production of Tiger Grouper Epinephelus Fuscoguttatus Fingerlings in Situbondo, Indonesia

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