Heritability of cold tolerance in Nile tilapia, Oreochromis niloticus, juveniles

Charo‐Karisa, Harrison; Rezk, Mahmoud; Bovenhuis, H.; Komen, Hans

doi:10.1016/j.aquaculture.2005.04.029

Cited by 107 publications

(81 citation statements)

References 8 publications

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“…The survival (%) of fish in the present study is lower than the survival of 94 to 100% for over-wintering brood tilapia and higher than that of 33-54% survival for mono-sex over-wintered fry as reported by Dan and Little (2000a). The existence of size dependent over-winter mortality has been reported for many fresh water and marine fishes, with smaller individuals being in most cases more susceptible than the larger ones (Sogard, 1977;Charo-Karisa et al, 2005). The effect of size on cold tolerance in tilapia has been reported as either significant or insignificant by different authors (Chaani et al, 2000;Frei et al, 2007).…”

Section: Fig 1 Growth Patterns In Terms Of Weight and Length Gain Ovcontrasting

confidence: 49%

“…Likongwe et al (1996) stated that temperature of shallow and small pieces of water bodies might follow air temperature. It has also been reported that tilapia reared under mid-summer conditions died between 13.6°C and 8.6°C, while those reared under autumn condition died between 11.7°C and 7.5°C (Charo-Karisa et al, 2005). This suggests that acclimatization to a lower temperature before cold stress can improve the cold tolerance ability of O. niloticus.…”

Section: Resultsmentioning

confidence: 85%

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OVER-WINTERING GROWTH PERFORMANCE OF MIXED-SEX AND MONO-SEX NILE TILAPIA Oreochromis niloticus IN THE NORTHEASTERN BANGLADESH

Siddik¹,

Nahar²,

Ahsan³

et al. 2014

CJF

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The study was conducted to assess the over-wintering growth performance of mixed-sex and mono-sex male tilapia, Oreochromis niloticus. The experiment was carried out with two treatments each with three replicates for a period of 6 months from October 2012 to March 2013 in the Field Laboratory Complex, Bangladesh Agricultural University. In the first treatment (T 1 ), mixed-sex tilapia was stocked in 3 ponds with a mean initial weight of 4.80±0.18 g. In the second treatment (T 2 ), mono-sex male tilapia was stocked in another 3 ponds with a mean initial weight of 4.81±0.20 g. Fish were fed at the rate of 6% of fish body weight at the beginning of the experiments, then the feeding rates were gradually reduced to 2% for the third month and finally increased to 3% for the rest of the period. Water parameters in terms of temperature, dissolved oxygen, pH, transparency, alkalinity, ammonia and nitrite were within the range of fish farming. After 6 months of culture period, mono-sex male tilapia attained a significantly (P<0.05) higher mean final weight and specific growth rate, compared to that of mixed-sex tilapia. However, there was no significant (P>0.05) difference of food conversion ratio and survival rate (%) values between the treatments. The benefit-cost ratio was calculated as 1.17 and 1.43 for mixed-sex and mono-sex male tilapia, respectively. The results suggested that it is possible to successfully culture tilapia during the winter period in Bangladesh, and the culture of mono-sex tilapia is more profitable due to its higher growth rate.

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Section: Fig 1 Growth Patterns In Terms Of Weight and Length Gain Ovcontrasting

confidence: 49%

Section: Resultsmentioning

confidence: 85%

OVER-WINTERING GROWTH PERFORMANCE OF MIXED-SEX AND MONO-SEX NILE TILAPIA Oreochromis niloticus IN THE NORTHEASTERN BANGLADESH

Siddik¹,

Nahar²,

Ahsan³

et al. 2014

CJF

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“…The estimates of heritability using one-trait analysis were similar to the means reported by Khaw et al (2009) for fish weight evaluated under different farming conditions, but these current estimates were lower than the responses reported by Ponzoni et al (2005). These values of 0.15 and 0.23 were similar to the estimates reported from experiments using REML analyses (RUTTEN et al, 2005;CHARO-KARISA et al, 2005;MALUWA et al, 2006). Furthermore, the estimates of 0.23 for fish length and 0.17 for fish height were similar to the figures of 0.26 and 0.17 reported by Nguyen et al (2007).…”

Section: Resultssupporting

confidence: 78%

Genetic parameters and morphometric characteristics of two generations from the GIFT strain of the Nile Tilapia

Oliveira

Filho

et al. 2014

Sem. Ci. Agr.

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The objective of this work was to estimate the (co)variance and the genetic parameters for weight and average daily gain from two national generations of the GIFT strain of the Nile tilapia (Oreochromis niloticus). We evaluated 3918 fish from two generations of the breeding program from the Universidade Estadual de Maringá, Northwestern Paraná. Univariate and bivariate analysis were carried out using Bayesian inference. The estimates of heritability using one-trait models for weight was 0.15, average daily gain was 0.19, fish length was 0.23, fish width was 0.19, standard length was 0.17, fish height was 0.15, and the head length was 0.17. The genetic and phenotypic correlations were above 0.68 and 0.95, respectively. The values of Spearman and Pearson correlations for breeding values of the morphometric traits in relation to average daily gain ranged from 0.58 to 0.98 and from 0.63 to 0.99, respectively. In the second generation (G2), the genetic gain was 2.6%, the effective size of the population was 94, and the inbreeding coefficient was 0.005. In the next generation (G3), these values were 8.1%, 124 and 0.004, respectively. The genetic gains over the generations gradually increased from one generation to another, indicating that the criterion, average daily gain, chosen for feature selection was efficient. Key words: Bayesian inference, breeding, fish, Oreochromis niloticus, selection ResumoO objetivo deste trabalho foi estimar a (co) variância e os parâmetros genéticos para peso e ganho de peso médio diário de duas gerações de tilápia do Nilo (Oreochromis niloticus) linhagem GIFT. Foram avaliados 3.918 peixes por análise univariada e bivariada, utilizando inferência Bayesiana. As estimativas de herdabilidade usando modelos de análise unicaracteristica para o peso foi de 0,15 e para o ganho em peso médio diário foi de 0,19. Nas características morfométricas: comprimento total, comprimento padrão, largura, altura, tamanho da cabeça, os valores para herdabilidade foram de 0,23; 0,17; 0,19; 0,15 e 0,17 respectivamente. A correlação de Spearman e Pearson para os valores genéticos das características morfométricas em relação ao ganho de peso médio diário variaram de 0,58 a 0,98 e 0,63 a 0,99. Na segunda geração (G2), o ganho genético foi de 2,6%, o tamanho efetivo da população foi de 94, e coeficiente de endogamia foi de 0,005. Na geração (G3) estes valores foram de 8,1%, 124 e 0,004. As estimativas de (co) variância e parâmetros genéticos para peso e ganho de peso médio diário demonstraram que o ganho genético ao longo de gerações é gradual e crescente de uma geração para a outra indicando que o critério de seleção escolhido foi eficiente.

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“…Li et al (2015) reported the cold-tolerance heritability of P. vannamei to be low (0.0258±0.0205 and 0.0211±0.0196 using the cooling degree-hours for each individual and the survival rate of each family at half-lethal time, respectively). Baer and Travis (2000) estimated the heritability of thermal tolerance in H. formosa as less than 0.15, and Charo- Karisa et al (2005) determined that the heritability of cold tolerance in Nile tilapia was low, 0.09, for temperature-at-death (TAD). An even lower heritability estimate (-0.125±0.095) was reported by Elderkin et al (2004) for the heat tolerance of Zebira Mussle Veligers.…”

Section: Heritability Of Survival Under Conditions Of High Ammonia-n mentioning

confidence: 99%

“…Charo-Karisa et al (2005) estimated that the genetic correlation between cold tolerance and body weight was stronger (0.72±0.81with cooling degree hours) in Oreochromis niloticus, but these genetic correlations could not be estimated accurately, as is reflected by the high standard errors and the weak phenotypic correlation (0.33±0.17 with cooling degree hours). Ma et al (2007) reported phenotypic correlations between cold tolerance and body weight or length that were positive but weak (0.18 and 0.23, respectively) in red drum Sciaenops ocellatus, which suggests that the genetic correlation also be low.…”

Section: Phenotypic and Genetic Correlationsmentioning

confidence: 99%

Untitled

Yuan¹,

Hu²,

Liu³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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Based on restricted maximum likelihood (REML) method under animal model, the genetic parameters in Litopenaeus vannamei for growth-related traits on body weight (BW, g), body length (BL, cm), abdominal segment length (ASL, cm), carapace length (CL, cm), and survival (SU) under conditions of 96 hours of ammonia exposure at 14 and 21 weeks of age were estimated, respectively. The heritability estimates for growth-related traits at different growth stages were moderate, ranging from 0.24±0.09 to 0.30±0.06 for 14-week-old shrimp and 0.26±0.07 to 0.31±0.06 for 21-week-old shrimp, respectively. The heritability estimates for survival under conditions of high Ammonia-N concentrations were 0.13±0.11 for 14-week-old shrimp and 0.17±0.08 for 21-week-old shrimp, respectively. Genetic correlations between growth-related traits within age cohorts were generally high (ranging from 0.74±0.06 to 0.89±0.16), but for growth-related traits between ages were low (ranging from 0.14±0.05 to 0.46±0.09); genetic correlations between growth-related traits and survival under conditions of high Ammonia-N concentrations were all positive (ranging from 0.25±0.03 to 0.32±0.05). Our results suggest that selection to improve any single body trait would likely produce correlated responses in the other traits examined and that selecting for growth will cause a positive correlated response in terms of Ammonia-N tolerance; estimates of genetic parameters for Ammonia-N tolerance should be calculated at a later age.

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Heritability of cold tolerance in Nile tilapia, Oreochromis niloticus, juveniles

Cited by 107 publications

References 8 publications

OVER-WINTERING GROWTH PERFORMANCE OF MIXED-SEX AND MONO-SEX NILE TILAPIA Oreochromis niloticus IN THE NORTHEASTERN BANGLADESH

OVER-WINTERING GROWTH PERFORMANCE OF MIXED-SEX AND MONO-SEX NILE TILAPIA Oreochromis niloticus IN THE NORTHEASTERN BANGLADESH

Genetic parameters and morphometric characteristics of two generations from the GIFT strain of the Nile Tilapia

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