Genetic (co)variation in harvest body weight and survival in Penaeus (Litopenaeus) vannamei under standard commercial conditions

Gitterle, Thomas; Rye, Morten; Salte, Ragnar; Cock, James H.; Johansen, Harry; Lozano, Carlos A.; Suárez, Jorge A.; Gjerde, Bjarne

doi:10.1016/j.aquaculture.2004.10.015

Cited by 157 publications

(108 citation statements)

References 24 publications

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“…Regardless of the differences, it appears that heritability of body weight in P. vannamei is moderate or high, indicates a potentially significant response to selection. Our results was also higher than those reported previously: 0.24±0.05 and 0.17±0.04 for harvest weight in ponds and tanks, respectively, at 23 weeks (Gitterle et al 2005); 0.17±0.06 for weight through a restrictedmaximum likelihood method after at 29 weeks (Pérez-Rostro & Ibarra 2003b); from 0.09 to 0.11 for body weight in the presence of WSSV(White spot syndrome virus) at 19 weeks (Caballero-Zamora et al 2014), the probable reason were other research based on f introducing sex as fixed effects, the more acute heritability had produced by eliminating more fixed effects. So we will identification sex at suitable time in next research works.…”

Section: Discussion Heritability Of Growth-related Traitscontrasting

confidence: 86%

“…The results show that the effect common to full-sibs other than additive genetics was larger at an early growth age than at an older age, possibly because growth-related additive genes are fully expressed with the extension of growth time. Gitterle et al (2005) reported that the effect common to fullsibs for body weight ranged from 0.00±0.05 to 0.17±0.08 for different batches; if the effect common to full-sibs was large, the heritability was typically small in P. vannamei under standard commercial conditions. For other aquatic animals, Hung et al (2013) reported that the effect common to full-sibs other than additive genetics for the same with body traits examined in our study ranged from 0.04 to 0.06 based on a four-analysis model of giant freshwater prawns (GFPs, Macrobrachium rosenbergii); based on the body weight and body length of rainbow trout and Atlantic salmon, the reported effect common to full-sibs other than additive genetics accounted for approximately 5% of the total variation in the rearing period until tagging (Fjalested et al 1996).…”

Section: The Effect Common To Full-sibs Other Than Additive Geneticsmentioning

confidence: 99%

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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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Section: Discussion Heritability Of Growth-related Traitscontrasting

confidence: 86%

Section: The Effect Common To Full-sibs Other Than Additive Geneticsmentioning

confidence: 99%

Untitled

Yuan¹,

Hu²,

Liu³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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“…Results: When using a conventional model without associative effects, estimated heritability for survival days in the chicken line was 6.7%, which is in the range common for survival traits in livestock (Table 2; Beaumont et al 1997;Carlen et al 2005;Gitterle et al 2005). The total heritable variance estimated from the full model (Equations 2, 4, and 5), however, was 2742 days 2 , which corresponds to 20% of the phenotypic variance.…”

Section: Applicationmentioning

confidence: 94%

Multilevel Selection 2: Estimating the Genetic Parameters Determining Inheritance and Response to Selection

et al. 2007

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Interactions among individuals are universal, both in animals and in plants and in natural as well as domestic populations. Understanding the consequences of these interactions for the evolution of populations by either natural or artificial selection requires knowledge of the heritable components underlying them. Here we present statistical methodology to estimate the genetic parameters determining response to multilevel selection of traits affected by interactions among individuals in general populations. We apply these methods to obtain estimates of genetic parameters for survival days in a population of layer chickens with high mortality due to pecking behavior. We find that heritable variation is threefold greater than that obtained from classical analyses, meaning that two-thirds of the full heritable variation is hidden to classical analysis due to social interactions. As a consequence, predicted responses to multilevel selection applied to this population are threefold greater than classical predictions. This work, combined with the quantitative genetic theory for response to multilevel selection presented in an accompanying article in this issue, enables the design of selection programs to effectively reduce competitive interactions in livestock and plants and the prediction of the effects of social interactions on evolution in natural populations undergoing multilevel selection.

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“…Between and within different countries, shrimp is cultured in a large variety of environmental and culture conditions and selective breeding programs are being developed. Whereas slight changes in environmental conditions, particularly salinity and temperature, have proven to result in no significant effects on inducing a change in performance rank among genotypes of P. vannamei [8,14] and P. japonicus [4], larger changes in grow-out temperature (24-30°C) and utilization of different stocking densities for P. japonicus shrimp culture have indicated that changes in family ranks can occur for growth traits and survival [5,10].…”

Section: Introductionmentioning

confidence: 99%

Genotype by environment interaction for adult body weights of shrimp Penaeus vannamei when grown at low and high densitie

Ibarra

Famula

2008

Genet Sel Evol

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-Shrimp is one of few marine species cultured worldwide for which several selective breeding programs are being conducted. One environmental factor that can affect the response to selection in breeding programs is the density at which the shrimp are cultured (low-medium-high). Phenotypic plasticity in the growth response to different densities might be accompanied by a significant genotype by environment interaction, evidenced by a change in heritabilities between environments and by a genetic correlation less than one for a unique trait between environments. Our goal was to understand whether different growth densities affect estimates of those genetic parameters for adult body weight (BW) in the Pacific white shrimp (Penaeus vannamei). BW heritabilities were significantly different between environments, with the largest at high density. These differences resulted from both an increased additive genetic variance and a decreased environmental variance when grown at high density. The genetic correlation between BWs at the two environmental conditions was significantly less than one. Whereas these results might be suggestive for carrying out shrimp selective breeding for BW under high density conditions, further understanding of genetic correlations between growth and reproductive traits within a given environment is necessary, as there are indications of reduced reproductive fitness for shrimp grown at high densities.Litopenaeus / heritability / body weight / density / genotype by environment interaction

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Genetic (co)variation in harvest body weight and survival in Penaeus (Litopenaeus) vannamei under standard commercial conditions

Cited by 157 publications

References 24 publications

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Multilevel Selection 2: Estimating the Genetic Parameters Determining Inheritance and Response to Selection

Genotype by environment interaction for adult body weights of shrimp Penaeus vannamei when grown at low and high densitie

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