Growth and survival of crossbreeds between wild and domestic strains of Mekong Delta bighead catfish (Clarias macrocephalus Günther, 1864) cultured in tanks

Yên, Dương Thúy; Nguyen, Nhan; Nguyen, Tuan Thanh; Huynh, L. T.; Bui, Tam M.; Pham, Liem Thanh; Dunham, Rex A.

doi:10.1016/j.aquaculture.2021.737507

Cited by 7 publications

(8 citation statements)

References 35 publications

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“…This was consistent with the results of a previous study (Lu et al, 2016), in which the heterosis (−13.36% to 13.80%) of the body weight of L. vannamei had both positive and negative values. Similar results have been reported in aquatic animals, such as bighead carp growth and survival (−55.9% to 13.8%) (Duong et al, 2022) and abalone growth and survival (−10.8% to 41.4%) (Li et al, 2017). Lu et al (2016) suggested that a large amount of heterosis may be caused by the accumulation of favorable dominant alleles or dominant alleles that masking recessive deleterious alleles in hybrids.…”

Section: Analysis Of Heterosis For Growth and Integrated Stress Toler...supporting

confidence: 84%

Analysis of hybrid combining ability for growth and multiple stress tolerance traits in the Pacific white shrimp, Litopenaeus vannamei

Wang¹,

Liu²

2022

Front. Anim. Sci.

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To identify optimal mating combinations for Litopenaeus vannamei, a linear mixed model was used to estimate the general combining ability (GCA) and specific combining ability (SCA) for growth and multiple stress tolerance [high salt (35‰), low pH (6 ± 0.1), and high ammonia nitrogen (70 mg/L) co-stress] traits in 47 combinations of L. vannamei. The results showed that the SCA in the parents played a dominant role in the offspring traits. The highest GCAs were observed for females of strain O and males of strain B (0.602 and 8.889, respectively), indicating that the dams of strain O and sires of strain B could be used as maternal and paternal lines to increase multiple stress resistance in the next generation. The growth traits of the hybrid combination strain G♂ × strain H♀ exhibited the highest degree of heterosis (9.838%–46.518%) and a generally high SCA (0.643–8.596) among all mating combinations. The SCA was the highest for the strain N♂ × strain O♀ multiple stress tolerance (30.131), while the heterosis for that combination strain was the third-highest. The combinations of strain G♂ × strain H♀ and strain N♂ × strain O♀ can be used as candidate combinations for rapid growth and multiple stress tolerance, respectively.

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Section: Analysis Of Heterosis For Growth and Integrated Stress Toler...supporting

confidence: 84%

Analysis of hybrid combining ability for growth and multiple stress tolerance traits in the Pacific white shrimp, Litopenaeus vannamei

Wang¹,

Liu²

2022

Front. Anim. Sci.

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“…Bighead catfish shows cannibalistic behaviour at young stages. Under rearing conditions, cannibalism is a major cause of mortality from the larval stage until the juveniles reach a body weight of about 10 g (Duong et al, 2022). Furthermore, mortality can occur during the several day‐long transition period from live food to commercial feed, despite the use of weaning strategies, as bighead catfish larvae, like other fish species, lack the enzymes needed to digest non‐live food (Lavens & Sorgeloos, 1996).…”

Section: Discussionmentioning

confidence: 99%

“…The juveniles in this treatment group had the lowest survival rate due to infectious diseases caused by Aeromonas bacteria, and Saprolegnia and Achlya fungi. Aside from the disease challenges (Srisapoome et al, 2019), the SR at the grow‐out stage of bighead catfish is usually high (above 70%) and is not affected by broodstock size (Muiocha et al, 2017), broodstock age, broodstock strain (Duong et al, 2022) or differences in diet (Coniza et al, 2003). However, it is uncommon to see no impact of parental size, egg size and yolk‐sac volume on the larval survival of bighead catfish, as compared to other species.…”

Section: Discussionmentioning

confidence: 99%

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Strain‐specific effects of broodstock size on fecundity and offspring performance in bighead catfish ( Clarias macrocephalus Günther, 1864)

Yên

Nguyen

2022

Aquaculture Research

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This study investigated the relationships among parental body weight, egg size and number, and offspring performance at the larval, juvenile and grow‐out stages of bighead catfish (Clarias macrocephalus) in Mekong domesticated (Can Tho; CT) and wild (Ca Mau; CM) strains. One‐year‐old broodstock from each strain were separated into two size groups, with those in the large (L) group having, on average, approximately double the body weight of those in the small (S) group. Both strains exhibited a strong linear increase in absolute fecundity (slope = 58.8, p < 0.01 for CT and slope = 52.3, p < 0.01 for CM) and a slight increase in egg diameter associated with increasing female body weight (slope = 0.0002, p = 0.03 for CT and slope = 0.0003, p = 0.06 for CM). However, there were no linear correlations between female body weight and yolk‐sac volume or larval body length at hatching (p > 0.05). Despite similar fecundities, the CM wild strain had larger eggs and more favourable larval properties than the CT domesticated strain (p < 0.01). However, these advantages did not result in better growth and survival of CM offspring at any stage. The CT strain showed improved growth in offspring with parents in the L group compared to those with parents in the S group across the three stages (35.7%, 50.0% and 43.9% respectively), while there was no significant increase in growth in the CM wild strain (p > 0.05). Parental body weight and strain had no effects on survival and feed conversion ratios (FCRs), with the exception that juveniles of the CM S group had the lowest SR (38.8 ± 6.0%) and FCR (1.09 ± 0.08) due to disease infection. The CT L group grew fastest and consumed the highest amount of food with similar feed efficiency to the other groups in juvenile and grow‐out stages (p < 0.05). These results indicated that the pertinence of ‘the bigger the better’ paradigm varied between growth stages in the two bighead catfish strains.

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“…Nine diallel crosses including three pure and six reciprocal crosses (♀CM x ♂CT, ♀CT x ♂CM, ♀HG x ♂CT, ♀CT x ♂HG, ♀HG x ♂CM, and ♀CM x ♂HG) from the three strains were produced and evaluated their growth from May 2019 to December 2019. At the market stage, two crossbreeds ♀CM x ♂CT and ♀CT x ♂CM showed better growth performance among six crossbreeds (Duong et al, 2022) and they were chosen for the present experiment. They were marked as G1-CMCT and G1-CTCM.…”

Section: Source Of Broodstockmentioning

confidence: 99%

Growth and survival performance of G2 crossbreeds from two strains of bighead catfish (Clarias macrocephalus)

Karanja

Duong²

2021

CTUJS

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The development of bighead catfish (Clarias macrocephalus) aquaculture in Viet Nam has been constrained by the slow growth performance in the domesticated strain. Crossbreeding can be a solution to improve fish production. This study was aimed to evaluate the growth and survival performance of the second generation (G2) fingerlings crossbreeds (CMCT and CTCM) from two bighead catfish strains (wild Ca Mau, CM, and domesticated Can Tho, CT) compared to offspring from their original strains (G0-CT and G0-CM) and G1 crossbreeds (♀CM × ♂CT and ♀CT × ♂CM). The larvae were reared in 50-L tanks (3 to 5 replications) with the density of 1,000 individuals/tank and fed with Moina and artificial feed (40% protein). After 40 days of rearing, the fish grew differently among crosses (P<0.05). In which, the two best-growth groups included CM×CT crossbreeds (body weight of 1,114 mg and length of 4.55 cm) and pure crossbred line CTCM (1,050 mg and 4.51cm, respectively). The CTCM group was recorded the highest survival rate (37.8%) while G0-CT was the lowest (27.2%); however, the difference in survival was not significant (P>0.05). The performance of these crossbreeds should be investigated further at the grow-out stage to see whether crossbreeding between wild and cultured strains of bighead catfish may be used in practice to increase bighead catfish production.

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Growth and survival of crossbreeds between wild and domestic strains of Mekong Delta bighead catfish (Clarias macrocephalus Günther, 1864) cultured in tanks

Cited by 7 publications

References 35 publications

Analysis of hybrid combining ability for growth and multiple stress tolerance traits in the Pacific white shrimp, Litopenaeus vannamei

Analysis of hybrid combining ability for growth and multiple stress tolerance traits in the Pacific white shrimp, Litopenaeus vannamei

Strain‐specific effects of broodstock size on fecundity and offspring performance in bighead catfish ( Clarias macrocephalus Günther, 1864)

Growth and survival performance of G2 crossbreeds from two strains of bighead catfish (Clarias macrocephalus)

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