Estimationof genetic parameters for juvenile growth performance traits in oliveflounder (Paralichthys olivaceus)

Abstract This study was conducted at a commercial research facility and utilized 1,092 finishing pigs (PIC® 337 × Camborough®) in a RCBD with 3 dietary treatments to determine the effects of commercially available phytogenic feed additives on growth performance traits in finishing swine for the last 35 d prior to marketing. The dietary treatments were as follows: 1) Control; 2) Aromex Pro® (AP; Delacon) fed at 0.01%; and 3) Ambitine® (AM; PMI) fed at 0.1%. Pens with 13 pigs/pen and 0.66 m2/pig were randomly allotted to treatments on the basis of live weight and gender. Pigs had ad libitum access to corn-soy diets that met or exceeded the pig’s requirements (NRC, 2012). Aromex Pro® and Ambitine® were added to the diets at the expense of corn. Dietary treatments started on day 0 (BW = 97.7 kg; SEM = 1.04) and were fed throughout the 35 d trial period. On d 21, the two heaviest pigs per pen were marketed, while the remaining pigs in each pen were marketed on d 35. Pigs and feeders were weighed on d 0, 21, and 35. Data were analyzed by using PROC MIXED of SAS® version 9.4, and pen was the experimental unit. The model included the fixed effect of treatment and random effect of replicate. Pre-planned orthogonal contrasts were used to compare AP vs. Control and AM vs. Control. Feeding AP or AM for the last 35 d in finishing both improved (P < 0.05) ADG by 4%, ADFI by 3% and final BW by 1.6 kg over Control, but did not change feed to gain or mortality. These data demonstrate that phytogenic feed additives can improve growth performance traits in finishing swine.

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Comparative study on growth performance and morphological characteristics of the meio- and mito-gynogenesis olive flounder (Paralichthys olivaceus)

Aquaculture ◽

10.1016/j.aquaculture.2021.736387 ◽

2021 ◽

Vol 535 ◽

pp. 736387

Author(s):

Qiaowan Wu ◽

Zhihao Wu ◽

Lijuan Wang ◽

Yunliang Lu ◽

Weijia Bi ◽

...

Keyword(s):

Comparative Study ◽

Growth Performance ◽

Paralichthys Olivaceus ◽

Morphological Characteristics ◽

Olive Flounder ◽

Olive Flounder Paralichthys Olivaceus

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Interactive effect between dietary valine and isoleucine on growth performance, blood parameters and resistance against low salinity stress of Japanese flounder Paralichthys olivaceus

Journal of Applied Ichthyology ◽

10.1111/jai.14171 ◽

2021 ◽

Author(s):

Lidong Shi ◽

Haojie Zhai ◽

Libo Wei ◽

Xu Wang ◽

Tongjun Ren ◽

...

Keyword(s):

Growth Performance ◽

Salinity Stress ◽

Paralichthys Olivaceus ◽

Interactive Effect ◽

Blood Parameters ◽

Japanese Flounder ◽

Low Salinity

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Bayesian inference of genetic parameters for reproductive and performance traits in White Leghorn hens

Czech Journal of Animal Science ◽

10.17221/116/2017-cjas ◽

2018 ◽

Vol 63 (No. 6) ◽

pp. 230-236 ◽

Cited By ~ 2

Author(s):

J.O. Rosa ◽

G.C. Venturini ◽

T.C.S. Chud ◽

B.C. Pires ◽

M.E. Buzanskas ◽

...

Keyword(s):

Bayesian Inference ◽

Fixed Effects ◽

Egg Production ◽

Genetic Parameters ◽

Laying Hens ◽

Reproductive Traits ◽

A Posteriori ◽

White Leghorn ◽

Performance Traits ◽

And Performance

This study estimated the genetic parameters for reproductive and performance traits and determined which ones can be used as selection criteria for egg production in laying hens using the Bayesian inference. The data of 1894 animals from three generations of White Leghorn laying hens were analyzed for fertility (FERT), hatchability (HATC), and birth rate measurements at 60 weeks of age (BIRTH), body weight at 16 and 60 weeks of age (BW16 and BW60), age at sexual maturity (ASM), egg height/width ratio, weight, and density at 28, 36, and 40 weeks of age (RHW28, RHW36, RHW40, WEGG28, WEGG36, WEGG40, DENS28, DENS36, and DENS40, respectively) traits. The genetic parameters were estimated by the Bayesian inference method of multi-trait animal model. The model included the additive and residual genetic random effects and the fixed effects of generation. The a posteriori mean distributions of the heritability estimates for reproductive traits ranged from 0.14 ± 0.003 (HATC) to 0.22 ± 0.005 (FERT) and performance from 0.07 ± 0.001 (RHW28) to 0.42 ± 0.001 (WEGG40). The a posteriori mean distributions of the genetic correlation between reproductive traits ranged from 0.18 ± 0.026 (FERT and HACT) to 0.79 ± 0.007 (FERT and BIRTH) and those related to performance ranged from –0.49 ± 0.001 (WEGG36 and DENS36) to 0.75 ± 0.003 (DENS28 and DENS36). Reproductive and performance traits showed enough additive genetic variability to respond to selection, except for RHW28. This trait alone would have little impact on the genetic gain because environmental factors would have a higher impact compared to those from the additive genetic factors. Based on the results of this study, the selection applied on the BIRTH trait can be indicated to improve FERT and HATC of eggs. Furthermore, the use of the WEGG40 could improve egg quality in this population.

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Age trends in genetic parameters for growth performance across country-wide provenances of the iconic conifer tree Araucaria angustifolia show strong prospects for systematic breeding and early selection

Forest Ecology and Management ◽

10.1016/j.foreco.2021.119671 ◽

2021 ◽

Vol 501 ◽

pp. 119671

Author(s):

Rafael T. Resende ◽

Pedro Italo T. Silva ◽

Orzenil B. Silva-Junior ◽

Miguel L. Menezes Freitas ◽

Alexandre M. Sebbenn ◽

...

Keyword(s):

Growth Performance ◽

Genetic Parameters ◽

Early Selection ◽

Araucaria Angustifolia ◽

Conifer Tree ◽

Age Trends

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Genetic parameters and genetic and phenotypic trends of performance traits of equines from the Brazilian Army

Revista Brasileira de Zootecnia ◽

10.1590/s1516-35982012000600015 ◽

2012 ◽

Vol 41 (6) ◽

pp. 1419-1425 ◽

Cited By ~ 2

Author(s):

Mariana de Almeida Dornelles ◽

Ronyere Olegário de Araújo ◽

Dionéia Magda Everling ◽

Tomás Weber ◽

Jader Silva Lopes ◽

...

Keyword(s):

Genetic Parameters ◽

Performance Traits

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Estimation of genetic parameters of fatty acids composition in flesh of market size common carp (Cyprinus carpio L.) and their relation to performance traits revealed that selective breeding can indirectly affect flesh quality

Czech Journal of Animal Science ◽

10.17221/30/2018-cjas ◽

2018 ◽

Vol 63 (No. 7) ◽

pp. 280-291 ◽

Cited By ~ 1

Author(s):

M. Prchal ◽

M. Vandeputte ◽

D. Gela ◽

M. Doležal ◽

H. Buchtová ◽

...

Keyword(s):

Fatty Acids ◽

Common Carp ◽

Genetic Parameters ◽

Selective Breeding ◽

Market Size ◽

Pufa Ratio ◽

Flesh Quality ◽

Supplemental Feed ◽

Fa Composition ◽

Performance Traits

Fish are a rich source of omega-3 polyunsaturated fatty acids (n-3 PUFAs) and thus, they should be an integral part of human diet at least twice a week. As a result, high attention has been devoted to the improvement of fatty acids (FA) content in the flesh of farmed fish through nutrition. Conversely, there are very few data on the potential of selective breeding to improve FA composition in fish. We estimated genetic parameters of fillet fatty acid content and performance traits in market size common carp cultured under semi-intensive pond conditions. The experimental stock arose through factorial mating of 7 dams and 36 sires. All families were reared communally. Pedigree was reconstructed with microsatellite markers, and 158 individuals were dressed out and selected for flesh FA composition analysis. Heritability estimates of total muscle fat, FA composition in total fat (TF) (n-3 PUFA-TF, PUFA-TF, EPA-TF – eicosapentaenoic acid, n-6/n-3 – omega6/omega3 PUFA ratio), and most performance traits were moderately heritable (h² = 0.23–0.41), and body weight was highly heritable (h2 = 0.62 ± 0.20). Genetic correlations show that selection for faster growth would indirectly lead to fillet yield improvement (rg = 0.50–0.62) while having little impact on muscle fat (rg = 0.21). However, lipid quality in flesh would be affected: n-3 PUFA-TF would decrease and the n-6/n-3 PUFA ratio would increase. A likely interpretation is that faster growing genotypes consume more supplemental feed, which was poor in the beneficial FAs. For sustainable selective breeding, supplemental feed composition should be modified, so that faster growing carps would maintain an appropriate flesh quality.

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