Environmental Factors and Genetic Parameters of Beef Traits in Fleckvieh Cattle Using Field and Station Testing

The goal of this study was to analyze the genetic and environmental factors of selected meat yield indicators in Fleckvieh cattle in the Czech Republic, through the application of station (S) and field (F) testing methods. Data collected from fattened bulls were analyzed for F (n = 9378) and for S (n = 6346). In the F method and the S method, the values of the main meat yield indicators were as follows: carcass weight 402.91 kg (F), 339.37 kg (S); carcass daily gain 626.05 g/day (F), 609.74 g/day (S); SEUROP carcass classification 2.73 (F), 2.19 (S). Environmental factors were found to have a significant impact on the selected meat yield indicators; their heritability ranged from 0.14 (SEUROP classification) to 0.33 (dressing percentage). The genetic trend was significantly positive only in relation to those meat yield traits, which had a positive link to the size or weight of the animal. The genetic correlation between observations obtained in the S and F methods of testing was very high in relation to the carcass daily gain (0.8351) and carcass weight (0.8244), while slightly lower correlations were calculated for the SEUROP classification. A genetic evaluation of the degree of fatness is not routinely performed in Fleckvieh populations, and the newly established heritability for this trait ranges between 0.17–0.20. The genetic correlation between beef yield indicators and the exterior trait of muscularity was also established, and shows a strong link to the net daily gain, the SEUROP classification and body weight (0.79–0.97). The aim of the study was to evaluate the genetic and environmental effects on meat yield and also estimate genetic parameters for new traits. We can also state, based on the results, that a strong positive genetic trend is confirmed, especially in traits related to the size or weight of animals. This result can be used in breeding programs of dual-purpose cattle, where we can genetically improve the meat and milk yield through the body size.

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HERITABILITIES AND GENETIC CORRELATIONS FOR ULTRASONIC BACKFAT MEASUREMENTS, GROWTH AND CARCASS TRAITS IN SWINE

Canadian Journal of Animal Science ◽

10.4141/cjas82-081 ◽

1982 ◽

Vol 62 (3) ◽

pp. 665-670 ◽

Cited By ~ 3

Author(s):

D. C. JEFFRIES ◽

R. G. PETERSON

Keyword(s):

Key Words ◽

Genetic Correlation ◽

Genetic Parameters ◽

Average Daily Gain ◽

Genetic Correlations ◽

Phenotypic Correlation ◽

Ultrasonic Measurements ◽

Yorkshire Pigs ◽

Daily Gain ◽

Season Interaction

Genetic parameters were estimated for 2403 purebred Yorkshire pigs over a 2-yr period, representing 21 sires. The traits studied included average daily gain, age adjusted to 90 kg, ultrasonic measurements of backfat at the mid-back and loin positions, total and adjusted total ultrasonic backfat and corresponding carcass backfat measurements. Least squares analyses were used to estimate and adjust for the effects of sex, year-season and sex by year-season interaction. Heritabilities and genetic correlations were calculated for all traits using both half- and full-sib estimates. Adjusted age and adjusted total ultrasonic backfat measurements were found to have the highest heritabilities of the live traits in this study. Estimates of heritability for adjusted age and adjusted total ultrasonic backfat were 0.24 ± 0.10 and 0.26 ± 0.10 based on half-sib and 0.56 ± 0.07 and 0.41 ± 0.06 from full-sib analyses. The genetic correlation between these two traits was −0.07 ± 0.28 based on the half-sib method. The total phenotypic correlation was −0.01 ± 0.02. Key words: Swine, ultrasonic backfat, heritabilities, genetic correlations

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Genetic and environmental factors affecting some measures of yield and fertility in a registered Canadian Holstein dairy herd in Iran

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200008462 ◽

2002 ◽

Vol 2002 ◽

pp. 190-190

Author(s):

Ali Toosi

Keyword(s):

Environmental Factors ◽

Genetic Parameters ◽

Dairy Herd ◽

Cattle Breeding ◽

Factors Affecting ◽

Lactation Curve ◽

Dairy Cattle Breeding ◽

Important Trait ◽

Genetic And Environmental Factors ◽

Production Characteristics

Milk production is the most important trait in dairy cattle breeding. Measures of additional traits are also important. Traits of lactation curve are important in their relation to production characteristics. The two major reasons for which dairy cows are disposed are fertility problems and low milk yield (Hansen et al.,1983). The objectives of this study were 1) To evaluate effects of some environmental factors on some measures of yield and fertility, and 2) To estimate genetic parameters for these traits applying REML procedures under sire model.

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Estimasi Parameter Genetik Sifat Pertumbuhan Kambing Boerawa di Kabupaten Tanggamus Propinsi Lampung (Genetic Parameters Estimation on Growth Traits of Boerawa Goat at Tanggamus Regency Lampung Province)

Buletin Peternakan ◽

10.21059/buletinpeternak.v34i3.82 ◽

2012 ◽

Vol 34 (3) ◽

pp. 138

Author(s):

Veronika Yuneriati Beyleto ◽

Sumadi (Sumadi) ◽

Tety Hartatik

Keyword(s):

Birth Weight ◽

Genetic Correlation ◽

Genetic Parameters ◽

Growth Traits ◽

Genetic Parameter ◽

Parameters Estimation ◽

Weaning Weight ◽

Estimate Heritability ◽

Growth Character ◽

Daily Gain

This research was conducted to estimate heritability, repeatability and genetic correlation values on growth traits of Boerawa goat at Sumber Rejeki farmer group at Campang Village, Gisting District and Karya Makmur I and Karya Makmur II farmer group at Wonoharjo and Sukoharjo Village, Sumber Rejo District, Tanggamus regency, Lampung province. Data consisted of production record and 238 Boerawa goat derived from 93 PE and 7 Boer buck. The research was started on October 30, 2009 up to January 30, 2010. The results indicated that heritability value of birth weight, weaning weight, yearling weigth, average of preweaning daily gain, and average of postweaning weight analyzed by paternal half-sibs correlation were 0.80±0.40; 0.30±0.17; 0.80±0.04; 0.32±0.18 and 0.30±0.17, respectively. The repeatability values of birth weight, weaning weight and yearling weight analyzed based on two recording per every dam were 0.42±0.07; 0.32±0.08; 0.30±0.08; 0.30±0.08 and 0.53±0.06. The genetic correlation values among birth weight and weaning weight, birth weight and yearling weight, weaning weight and yearling weight, average of preweaning weight and postweaning weight daily gain analyzed by paternal half-sibs correlation were 0.50±0.04; 0.44±0.08; 0.21±0.03 and 0.20±0.05, respectively. The result also indicated that the heritability and repeatability values was high and the genetic correlation values were moderate to high.(Key words: Boerawa goat, Genetic parameter, Growth character)

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Komparasi Algoritma Naive Bayes dan K-Nearest Neighbor untuk Membangun Pengetahuan Diagnosa Penyakit Diabetes

Jurnal Komtika ◽

10.31603/komtika.v5i1.5140 ◽

2021 ◽

Vol 5 (1) ◽

pp. 52-59

Author(s):

Maulidya Dwi Nurmalasari ◽

Kusrini Kusrini ◽

Sudarmawan Sudarmawan

Keyword(s):

Environmental Factors ◽

Blood Sugar ◽

Nearest Neighbor ◽

Naive Bayes ◽

Naïve Bayes ◽

The Body ◽

K Nearest Neighbor ◽

Lower Blood ◽

Genetic And Environmental Factors ◽

Sugar Levels

Diabetes is caused by a deficiency of the hormone insulin, which is secreted by the pancreas to lower blood sugar levels. The factors that trigger the occurrence of diabetes are derived from various factors such as a combination of genetic and environmental factors. The phenomenon of the emergence of various beverage brand outlets can be one of the triggers for blood sugar levels in humans. Normal blood sugar levels in the body range from 70-130 mg/dL before eating, less than 180 mg/dL two hours after eating, less than 100 mg/dL after not eating or surviving for eight hours, and 100-140 mg/dL at bedtime. This research aims to determine which algorithm is suitable for building knowledge about diabetes using the Naïve Bayes and K-Nearest Neighbor (KNN) algorithm. The accuracy results from Naïve Bayes are 85.60% and K- Nearest Neighbor of 91.61%. The results showed that K-Nearest Neighbor proved to have the best accuracy.

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Erfassung der Futteraufnahme im Rahmen der Stationsprüfung potentieller Besamungsbullen

Archives Animal Breeding ◽

10.5194/aab-43-561-2000 ◽

2000 ◽

Vol 43 (6) ◽

pp. 561-572

Author(s):

R. Wassmuth ◽

H. Alps

Keyword(s):

Genetic Correlation ◽

Feed Intake ◽

Genetic Parameters ◽

Eating Behaviour ◽

Indirect Measurement ◽

Test Period ◽

Eating Time ◽

Testing Period ◽

Testing Data ◽

Daily Gain

Abstract. Title ofthe paper: Recording of feed intake in stationary testing of potential AI bulls This study was performed in order to estimate correlations between feed intake, eating time and daily gain in young bulls and in order to estimate genetic parameters for feed intake in successive testing periods aiming at reduction of costs for testing. Data were collected from 269 Station tested potential AI bulls of German Holstein. In the testing period beginning with the 112th and ending with the 312 day of life, bulls consumed 5.1 kg roughage in 125 minutes per day and increased their weight by 1,300 g daily. The heritability of feed intake was 0.42, of eating behaviour 0.40 and of daily gain 0.62. Between feed intake and eating behaviour no relationship could be observed. Hence, an indirect measurement of feed intake is not possible. The high genetic correlation between feed intake and daily gain of 0.96 is no reason to replace feed intake recording because of a promising relationship between feed intake and health of dairy cows. Because of a delayed Start of 32 % of all tested bulls a shortening of the test period should be orientated to the last testing periods. In the last testing period, the heritability of feed intake was 0.65 and the genetic correlation between feed intake in the last and in the whole test period was high with 0.88. Hence, the test period could be shortened favouring intake measurements between 263rd and 312th day of life.

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Analysis of environmental and genetic factors in growth characteristics of Balkan goat

Biotechnology in Animal Husbandry ◽

10.2298/bah1202275c ◽

2012 ◽

Vol 28 (2) ◽

pp. 275-282 ◽

Cited By ~ 3

Author(s):

V. Caro-Petrovic ◽

Z. Ilic ◽

D. Ruzic-Muslic ◽

M.P. Petrovic ◽

M.M. Petrovic ◽

...

Keyword(s):

Body Weight ◽

Birth Weight ◽

Environmental Factors ◽

Genetic Parameters ◽

Genetic Factors ◽

Growth Traits ◽

Growth Characteristics ◽

The Body ◽

Goat Breed ◽

The Impact

Research was conducted on animals of Balkan goat breed. The impact of environmental factors on the weight of kids was analyzed, and also the value of genetic parameters of growth traits of kids to weaning had been examined. The body weight of kids varied depending on the year from 2.27?0.09 kg to 2.43?0.08 kg at birth and 10.81?0.58 kg to 11.13?0.51 kg at weaning. Variations depending on the season, ranged from 2.24?0.09 kg to 2.51?0.05 kg. Sex also had an impact because the male kids had higher weight of 0.12 kg at birth and 0.20 kg at weaning. All differences caused by environmental factors were statistically significant (P<0.01). Single born kids in comparison with twin born kids had higher birth weight by 0.22 kg at birth and 0.37 kg in weaning. The differences were statistically significant (P<0.01). It is a known fact that the increase in litter size influences decrease in body weight of kids. We also found that the weight at birth is associated with body weight at weaning. Heritability for growth traits observed moving in the range of low values from 0.102 ? 0.039 to 0.153 ? 0.041. Repeatability of the observed traits varied from low to medium values in the interval from 0.118 ? 0.030 to 0.528 ? 0025.

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Genetic parameters of direct and ratio traits from field and station tests of pigs

Archives Animal Breeding ◽

10.5194/aab-51-172-2008 ◽

2008 ◽

Vol 51 (2) ◽

pp. 172-178 ◽

Cited By ~ 1

Author(s):

I. Nagy ◽

L. Csató ◽

J. Farkas ◽

P. Gyovai ◽

L. Radnóczi ◽

...

Keyword(s):

Genetic Correlation ◽

Meat Quality ◽

Field Test ◽

Genetic Parameters ◽

Average Daily Gain ◽

Quality Score ◽

National Database ◽

Ratio Test ◽

Lean Meat ◽

Daily Gain

Abstract. Genetic parameters of several growth and carcass traits were estimated for the Hungarian Large White (HLW) and Hungarian Landrace (HL) pig breeds. The objective of the analysis was to compare the direct (days on station test, consumed feed, valuable cuts and age) and ratio/composite (net daily gain, feed conversion, proportion of valuable cuts, lean meat percentage and average daily gain and meat quality score) traits, which were collected in the course of station and field tests. The analysis was based on the national database (1997–2003) using univariate and bivariate animal models. Estimated heritabilities for station test traits ranged between 0.34–0.69 (except for meat quality score, where the heritability was low (0.10, 0.15 for HLW and HL, respectively) and exceeded that of the field test traits (0.18–0.23). Relative importance of random litter effects was low for the station test traits (0.01–0.29) but moderate for the field test traits (0.20–0.48). The unfavourable genetic correlation between lean meat percentage and meat quality score (−0.28, −0.44 for HLW and LW, respectively) is worth mentioning. In both performance tests the direct and ratio test counterparts showed similar heritabilities and their genetic correlation were close to unity (0.74–0.95). Based on these results selection on either the direct or on the ratio traits would possibly result similar selection response.

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Growth and Development of Dentofacial Complex influenced by Genetic and Environmental Factors using Monozygotic Twins

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-2121 ◽

2017 ◽

Vol 18 (9) ◽

pp. 754-758 ◽

Cited By ~ 2

Author(s):

KK Manjusha ◽

K Jyothindrakumar ◽

A Nishad ◽

K Madhav Manoj

Keyword(s):

Environmental Factors ◽

Correlation Coefficient ◽

Growth And Development ◽

Dominant Role ◽

Monozygotic Twins ◽

Twin Studies ◽

The Body ◽

Gonial Angle ◽

Lateral Cephalograms ◽

Genetic And Environmental Factors

ABSTRACT Aim The purpose of this study was to determine the possible effects of genetic and environmental factors on dentofacial complex using monozygotic twins. Materials and methods The study sample was made of 21 pairs of monozygotic twins (14 female pairs and seven male pairs) between 10 and 25 years. Pretreatment lateral cephalograms were used which were traced and digitized, and various landmarks to determine the anteroposterior and vertical proportions were marked. Samples were divided into two groups. The correlation between groups was found by calculating Pearson's product moment correlation coefficients. Results The range of the correlation coefficient was from 0.705 to 0.952. Gonial angle showed the highest correlation coefficient (0.952), while saddle angle showed the lowest correlation coefficient (0.705). Conclusion The growth and development of craniofacial complex is under mutifactorial control. However, genetic influences do tend to play a dominant role. Clinical significance By studying identical twins, we can study about the interaction of the environment with the genes and how it affects the growth and development of the body in general and dentofacial complex in particular. By utilizing twin studies, we can identify whether a particular trait, disease, or disorder is influenced more strongly by genetics or by the environment. Success of orthodontic treatment depends on a proper diagnosis of the problem including its etiological factors. Genetic studies let the orthodontists to understand the effects of genetic and environmental factors in the growth and development of dentofacial complex better and allows to prevent or treat malocclusions and skeletal anomalies in better ways. How to cite this article Manjusha KK, Jyothindrakumar K, Nishad A, Manoj KM. Growth and Development of Dentofacial Complex influenced by Genetic and Environmental Factors using Monozygotic Twins. J Contemp Dent Pract 2017;18(9):754-758.

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Genetic and environmental factors of schizophrenia and autism spectrum disorder: insights from twin studies

Journal of Neural Transmission ◽

10.1007/s00702-020-02188-w ◽

2020 ◽

Vol 127 (11) ◽

pp. 1501-1515 ◽

Cited By ~ 2

Author(s):

Akira Imamura ◽

Yoshiro Morimoto ◽

Shinji Ono ◽

Naohiro Kurotaki ◽

Shinji Kanegae ◽

...

Keyword(s):

Autism Spectrum Disorder ◽

Environmental Factors ◽

Psychiatric Disorders ◽

Twin Studies ◽

Autism Spectrum ◽

The Body ◽

Spectrum Disorder ◽

Tissue Type ◽

Epigenetic Changes ◽

Genetic And Environmental Factors

Abstract Twin studies of psychiatric disorders such as schizophrenia and autism spectrum disorder have employed epidemiological approaches that determine heritability by comparing the concordance rate between monozygotic twins (MZs) and dizygotic twins. The basis for these studies is that MZs share 100% of their genetic information. Recently, biological studies based on molecular methods are now being increasingly applied to examine the differences between MZs discordance for psychiatric disorders to unravel their possible causes. Although recent advances in next-generation sequencing have increased the accuracy of this line of research, there has been greater emphasis placed on epigenetic changes versus DNA sequence changes as the probable cause of discordant psychiatric disorders in MZs. Since the epigenetic status differs in each tissue type, in addition to the DNA from the peripheral blood, studies using DNA from nerve cells induced from postmortem brains or induced pluripotent stem cells are being carried out. Although it was originally thought that epigenetic changes occurred as a result of environmental factors, and thus were not transmittable, it is now known that such changes might possibly be transmitted between generations. Therefore, the potential possible effects of intestinal flora inside the body are currently being investigated as a cause of discordance in MZs. As a result, twin studies of psychiatric disorders are greatly contributing to the elucidation of genetic and environmental factors in the etiology of psychiatric conditions.

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Insulin resistance: an atherothrombotic syndrome

Thrombosis and Haemostasis ◽

10.1055/s-0037-1613555 ◽

2003 ◽

Vol 89 (01) ◽

pp. 161-168 ◽

Cited By ~ 29

Author(s):

Mark Freeman ◽

Michael Mansfield ◽

Jenny Barrett ◽

Peter Grant

Keyword(s):

Insulin Resistance ◽

Environmental Factors ◽

Genetic Correlation ◽

Plasminogen Activator ◽

Genetic Correlations ◽

Fasting Insulin ◽

Significant Genetic Correlation ◽

Genetic And Environmental Factors ◽

Pai 1 ◽

Shared Genetic

SummaryThe insulin resistance syndrome (IRS) is a clustering of atherothrombotic traits associated with increased vascular risk. We investigated the degree to which the phenotypic correlations between these traits are due to shared genetic and environmental factors.A multivariate genetic analysis was performed in 537 adults from 89 healthy white north European families. All traits showed significant heritability. BMI had significant genetic correlations with fasting insulin, systolic blood pressure (sBP), plasminogen activator activator inhibitor-1 (PAI-1) and fibrinogen and triglyceride. Fasting insulin had a significant genetic correlation with fibrinogen and triglyceride and Factor VII (FVII). Significant genetic correlations were shown between triglyceride and PAI-1, fibrinogen and FVII. PAI-1 and tissue plasminogen activator (t-PA) showed significant genetic correlation with sBP and with each other. Pleiotropy was demonstrated between fibrino-gen and PAI-1, t-PA and FVII. Significant environmental correlations were also demonstrated.This study demonstrates pleiotropy between coagulation and fibrinolytic factors. Shared genetic and environmental factors influencing haemostatic, metabolic and anthropometric traits underlie the atherothrombotic nature of the IRS.

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