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You searched for: Journal name Livestock science Remove constraint Journal name: Livestock science Subject term animal genetics Remove constraint Subject term: animal genetics
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1. The Brazilian beef cattle supply chain in the next decades

Author:
Guilherme Cunha Malafaia; Giana de Vargas Mores; Yasmin Gomes Casagranda; Júlio Otávio Jardim Barcellos; Fernando Paim Costa
Source:
Livestock science 2021 v.253 pp. 104704
ISSN:
1871-1413
Subject:
Delphi method; animal genetics; animal welfare; beef; beef cattle; grasses; labor; livestock production; meat quality; modernization; supply chain; waste management; Brazil
Abstract:
... The Brazilian beef cattle supply chain has undergone technological modernisation in its production systems, resulting in better productivity, meat quality and competitiveness. The research aims to identify the megatrends in the Brazilian beef cattle supply chain expected by 2040. The Delphi method was used to identify the challenges. Scenarios were created and ten megatrends were defined: i) biolo ...
DOI:
10.1016/j.livsci.2021.104704

2. Genomics and disease resistance studies in livestock

Author:
Stephen C Bishop; John A Woolliams
Source:
Livestock science 2014 v.166 pp. 190-198
ISSN:
1871-1413
Subject:
Salmo salar; animal genetics; animal health; bovine tuberculosis; case studies; dairy cattle; disease resistance; experimental design; genetic disorders; genomics; necrosis; phenotype
Abstract:
... This paper considers the application of genetic and genomic techniques to disease resistance, the interpretation of data arising from such studies and the utilisation of the research outcomes to breed animals for enhanced resistance. Resistance and tolerance are defined and contrasted, factors affecting the analysis and interpretation of field data presented, and appropriate experimental designs d ...
DOI:
10.1016/j.livsci.2014.04.034
PubMed:
26339300
PubMed Central:
PMC4547482

3. Linkage disequilibrium levels in Bos indicus and Bos taurus cattle using medium and high density SNP chip data and different minor allele frequency distributions

Author:
Ana M. Pérez O’Brien; Gábor Mészáros; Yuri T. Utsunomiya; Tad S. Sonstegard; J. Fernando Garcia; Curtis P. Van Tassell; Roberto Carvalheiro; Marcos V.B. da Silva; Johann Sölkner
Source:
Livestock science 2014 v.166 pp. 121-132
ISSN:
1871-1413
Subject:
alleles; animal breeding; animal genetics; cattle; gene frequency; genomics; genotype; genotyping; linkage disequilibrium; loci; single nucleotide polymorphism; taurine; zebu; zebu breeds
Abstract:
... Linkage disequilibrium (LD), the observed correlation between alleles at different loci in the genome, is a determinant parameter in many applications of molecular genetics. With the wider use of genomic technologies in animal breeding and animal genetics, it is worthwhile revising and improving the current knowledge and understanding of cattle LD.This study analyzes levels of LD assessed through ...
DOI:
10.1016/j.livsci.2014.05.007

4. RNA-Sequencing: A tool to explore new frontiers in animal genetics

Author:
Saumya Wickramasinghe; Angela Cánovas; Gonzalo Rincón; Juan F. Medrano
Source:
Livestock science 2014 v.166 pp. 206-216
ISSN:
1871-1413
Subject:
transcriptomics; messenger RNA; microarray technology; high-throughput nucleotide sequencing; bioinformatics; gene expression regulation; non-coding RNA; gene expression; livestock; transcriptome; exons; introns; animal genetics; single nucleotide polymorphism
Abstract:
... Global gene expression profiling by RNA-Sequencing (RNA-Seq) was introduced in 2004 with the advent of next generation sequencing technologies and has made a revolutionary impact on transcriptome analysis. When compared to the traditional microarray technologies, RNA-Seq has major advantages such as a higher dynamic range, a precise unbiased quantification of transcripts and a comprehensive covera ...
DOI:
10.1016/j.livsci.2014.06.015

5. Breeding programme for Piétrain pigs in Bavaria with an estimation of genetic trends and effective population size

Author:
Habier, D.; Götz, K.-U.; Dempfle, L.
Source:
Livestock science 2009 v.123 no.2-3 pp. 187-192
ISSN:
1871-1413
Subject:
estimation; sire evaluation; animal performance; Pietrain; population size; artificial insemination; selection criteria; animal genetics; swine; Germany
Abstract:
... Population structure, performance testing and breeding scheme of the sire breed Piétrain in Bavaria were analyzed as a basis for further optimization studies of the breeding programme. To evaluate the current breeding programme, genetic trends and effective population size were estimated. Four data sets were used which contained breeding animals born between 1981 and 2005, estimated breeding value ...
DOI:
10.1016/j.livsci.2008.11.007

6. Genetic analysis of six production traits in Peruvian alpacas

Author:
Gutiérrez, J.P.; Goyache, F.; Burgos, A.; Cervantes, I.
Source:
Livestock science 2009 v.123 no.2-3 pp. 193-197
ISSN:
1871-1413
Subject:
fleece; diameter; genetic correlation; natural fibers; fiber quality; alpacas; heritability; animal performance; animal genetics; Peru
Abstract:
... In this study a total of 6499 records were obtained for fibre diameter (FD) and coefficient of variation of FD (CV), 3283 records for greasy fleece weight (GFW), staple length (SL) and shearing interval (SI) and 1802 records of textile value index (TV) obtained from an experimental herd of alpacas exploited in the Peruvian Altiplano. The estimated heritabilities were: 0.412±0.015 (FD), 0.321±0.013 ...
DOI:
10.1016/j.livsci.2008.11.006

7. Genetic and phenotypic parameter estimates for reproduction traits in the Boer dam

Author:
Zhang, Chun-Yan; Chen, Shi-Lin; Li, Xiang; Xu, De-Qing; Zhang, Ying; Yang, Li-Guo
Source:
Livestock science 2009 v.125 no.1 pp. 60-65
ISSN:
1871-1413
Subject:
parity (reproduction); breed differences; phenotype; animal morphology; genetic correlation; dams (mothers); reproductive traits; animal genetics
Abstract:
... Variance components and further phenotypic and genetic parameters for reproduction traits including litter size at birth (LSB) and at weaning (LSW), gestation period (GP) and litter weight at birth (LWB) were estimated by use of the MTGSAM procedure fitting two-trait animal model (y = X b + Z a a + Z P P + e ) in Boer dams. The calculations were based on 1205 parities of 435 Boer dams at Boer Goat ...
DOI:
10.1016/j.livsci.2009.03.002

8. Heterosis effects in a black and white dairy cattle population under different production environments

Author:
Penasa, M.; De Marchi, M.; Zotto, R. Dal; de Jong, G.; Bittante, G.; Cassandro, M.
Source:
Livestock science 2010 v.131 no.1 pp. 52-57
ISSN:
1871-1413
Subject:
milk protein yield; heterosis; animal stress; animal age; calving; dairy cattle; environmental factors; lactation; data analysis; Holstein; milk fat yield; crossbreds; genetic variation; somatic cell count; animal genetics
Abstract:
... The effect of the environmental level of production (ENV) on the expression of heterosis for 305-day milk, fat, protein, and fat plus protein (FP) yields, lactation average somatic cell score (LSCS), and age at first calving (AFC) was investigated in first lactation Black and White dairy cows in the Netherlands, and officially enrolled in the Dutch herd-book. Holstein Friesian (HF), Dutch Friesian ...
DOI:
10.1016/j.livsci.2010.02.027

9. A reliable method for characterization of the goat CSN1S1 E allele

Author:
Dettori, M.L.; Vacca, G.M.; Carcangiu, V.; Pazzola, M.; Mura, M.C.; Rocchigiani, A.M.
Source:
Livestock science 2009 v.125 no.1 pp. 105-108
ISSN:
1871-1413
Subject:
alleles; goats; polymerase chain reaction; reliability; nucleotide sequences; animal genetics
Abstract:
... Goat αs₁-casein, coded by the CSN1S1 gene, is a highly polymorphic protein. The E allele is characterized by the insertion of a long interspersed nuclear element (LINE) in the 19th exon of the gene. This insertion is probably responsible for the reduced levels of αs₁-casein found in milk from animals expressing the E allele. The present study aimed to develop a robust method for the detection of t ...
DOI:
10.1016/j.livsci.2009.03.007

10. Analysis of mortality pattern among indigenous and upgraded pigs under subtropical hill agro climatic conditions in eastern Himalayas

Author:
Basumatary, R.; Naskar, S.; Kumaresan, A.; Khargharia, G.; Kadirvel, G.; Bardoloi, R.K.
Source:
Livestock science 2009 v.123 no.2-3 pp. 169-174
ISSN:
1871-1413
Subject:
mortality; swine breeds; swine; subtropics; hills; mountains; genetic correlation; animal performance; breed differences; seasons; animal genetics; India
Abstract:
... Mortality records of indigenous and upgraded pigs, reared under subtropical hill agro climatic conditions, were collected for the period of 11 years (1993-2003), analyzed and the mortality pattern was correlated with genetic group, age of pigs, climatic factors and causes of death. Results revealed that there was significant (p <0.05) difference in mortality between the indigenous (6.05%) and upgr ...
DOI:
10.1016/j.livsci.2008.11.010

11. Estimation of genetic parameters of conformation traits in Iranian Thoroughbred horses

Author:
Bakhtiari, J.; Heshmat, G.
Source:
Livestock science 2009 v.123 no.2-3 pp. 116-120
ISSN:
1871-1413
Subject:
estimation; females; body conformation; body regions; males; gender differences; phenotypic correlation; Thoroughbred; heritability; selection criteria; horses; animal genetics; breeding value; Iran
Abstract:
... The aim of this study was to estimate the genetic parameters of conformation traits in Iranian Thoroughbred race horses. The data set included the conformation records of 607 Thoroughbred horses. In this study, 10 conformation traits were recorded. The effect of sex was significant for length of back line (P <0.05), withers height (P <0.05), circumference of front cannon (P <0.001), and circumfere ...
DOI:
10.1016/j.livsci.2008.10.014

12. Estimation of genetic parameters of racing performance in Iranian Thoroughbred horses

Author:
Bakhtiari, J.; Kashan, N.E.J.
Source:
Livestock science 2009 v.120 no.1-2 pp. 151-157
ISSN:
1871-1413
Subject:
estimation; animal genetics; racing performance; Thoroughbred; racehorses; long term effects; animal age; mathematical models; heritability; Iran
Abstract:
... The aim of this study was to estimate the genetic parameters of racing performance and investigate the fixed effects that influence the performance of Thoroughbred race horses. The data included the performance of two, three and four year old horses raced in flat races and consisted of 10,800 time records and 10,912 ranking value. Two criteria were used in order to analyze the performance: racing ...
DOI:
10.1016/j.livsci.2008.05.007

13. Genetic connectedness between seven European countries for performance in jumping competitions of warmblood riding horses

Author:
Ruhlmann, C.; Bruns, E.; Fraehr, E.; Philipsson, J.; Janssens, S.; Quinn, K.; Hellsten, E. Thorén; Ricard, A.
Source:
Livestock science 2009 v.120 no.1-2 pp. 75-86
ISSN:
1871-1413
Subject:
contest judging; mathematical models; estimation; genetic correlation; stallions; pedigree; animal genetics; horse breeds; Europe
Abstract:
... The aim of this study was to evaluate the genetic connectedness between seven European populations of show jumping horses. Data on stallions bred for jumping and their pedigree up to three generations were provided by seven countries, including 6317 stallions and 22324 different horses. Four different methods were used to estimate the genetic connectedness. Common stallions between countries varie ...
DOI:
10.1016/j.livsci.2008.04.016

14. Geographical isolation of native sheep breeds in the UK--Evidence of endemism as a risk factor to genetic resources

Author:
Carson, Amanda; Elliott, Matt; Groom, Julian; Winter, Agnes; Bowles, Dianna
Source:
Livestock science 2009 v.123 no.2-3 pp. 288-299
ISSN:
1871-1413
Subject:
breed differences; geographical variation; population characteristics; risk factors; genetic variation; sheep breeds; animal genetics; United Kingdom
Abstract:
... This study addresses the potential risk to the genetic resources of UK sheep breeds from endemism. Twelve native breeds are analysed that exist in significant numbers and continue to be commercially farmed livestock. The breeds were selected to represent regions of the British Isles: North of England hill breeds (Herdwick, Rough Fell, Lonk, Dalesbred), South of England breeds (Southdown, Romney, D ...
DOI:
10.1016/j.livsci.2008.11.026

15. Mitochondrial D-loop nucleotide sequences of Egyptian river buffalo: Variation and phylogeny studies

Author:
Hassan, A.A.; El Nahas, S.M.; Kumar, S.; Godithala, P.S.; Roushdy, Kh.
Source:
Livestock science 2009 v.125 no.1 pp. 37-42
ISSN:
1871-1413
Subject:
mitochondrial DNA; nucleotide sequences; buffaloes; phylogeny; animal genetics; maternal lineage; genetic variation; Egypt
Abstract:
... The complete mitochondrial D-loop region of 48 Egyptian buffalo representing the two main subpopulations from Northern-Egypt and Southern-Egypt was sequenced and analyzed. To the best of our knowledge this is the first published data on the complete mitochondrial D-loop sequences of Egyptian river buffalo. Analysis of D-loop sequences revealed 28 different haplotypes resulting from 77 polymorphic ...
DOI:
10.1016/j.livsci.2009.03.001

16. Optimal genetic contribution selection in Danish Holstein depends on pedigree quality

Author:
Sørensen, M.K.; Sørensen, A.C.; Baumung, R.; Borchersen, S.; Berg, P.
Source:
Livestock science 2008 v.118 no.3 pp. 212-222
ISSN:
1871-1413
Subject:
dairy cows; sires; bulls; decision making; genetic improvement; genetic distance; dams (mothers); inbreeding; Holstein; computer software; artificial insemination; selection criteria; pedigree; animal genetics; Denmark
Abstract:
... The aim of this study was to assess the importance of pedigree depth when performing optimal contribution selection as implemented in the software program EVA. This was done by applying optimal genetic contribution in the breeding program of the major Danish Dairy breed Danish Holstein. In the analyses earlier breeding decisions were considered by including all AI waiting- and young bulls and cont ...
DOI:
10.1016/j.livsci.2008.01.027

17. Research opportunities in the field of animal genetic resources

Author:
Cardellino, Ricardo A.; Boyazoglu, Jean
Source:
Livestock science 2009 v.120 no.3 pp. 166-173
ISSN:
1871-1413
Subject:
research; animal genetic resources; animal genetics; animal breeding
Abstract:
... Animal genetic resources are those animal species that are used, or may be used, for the production of food and agriculture, and the populations within each of them. The working unit of a database for farm animal genetic resources is the breed, a term taken in its widest possible sense to mean a population within the species, possessing a number of particular traits that permit the grouping of the ...
DOI:
10.1016/j.livsci.2008.07.002

18. Simultaneous identification and combined genotype effects analysis of pre-implantation protein 3 (prei3) and estrogen receptor (ESR) gene in pigs

Author:
Ye, L.Z.; Niu, B.Y.; Luo, L.F.; Shao, G.C.; Mei, S.Q.; Deng, C.Y.; Jiang, S.W.; Xiong, Y.Z.; Li, F.E.
Source:
Livestock science 2009 v.125 no.1 pp. 80-83
ISSN:
1871-1413
Subject:
gilts; loci; animal proteins; oviducts; hormone receptors; estrogens; genotype; genes; genetic techniques and protocols; reproductive traits; progeny testing; animal genetics
Abstract:
... A method allowing simultaneous genotyping of two loci: pre-implantation protein 3 (prei3) and estrogen receptor (ESR) was presented. In multiplex PCR amplification, two amplicons were simultaneously produced a 294bp fragment of prei3 gene and a 121bp fragment of ESR gene and were then subjected to ''one-tube'' restriction enzyme digestion with MspI and PvuII. A total of 92 sows from the 4th dam li ...
DOI:
10.1016/j.livsci.2009.02.017

19. Effect of supplementation with MgCO₃ and l-Tryptophan on the welfare and on the carcass and meat quality of two halothane pig genotypes (NN and nn)

Author:
Panella-Riera, N.; Dalmau, A.; Fàbrega, E.; Font i Furnols, M.; Gispert, M.; Tibau, J.; Soler, J.; Velarde, A.; Oliver, M.A.; Gil, M.
Source:
Livestock science 2008 v.115 no.2-3 pp. 107-117
ISSN:
1871-1413
Subject:
pork; slaughter; swine feeding; nutrition-genotype interaction; magnesium carbonate; swine breeds; animal stress; meat quality; pig carcasses; tryptophan; halothane; homozygosity; animal breeding; feed supplements; animal genetics
Abstract:
... Sixty-one animals with different Halothane genes (homozygous halothane positive, n =34; and homozygous halothane negative, n =27) were fed with three diets (control group, with no supplement; magnesium (Mg) group with 1.28 g MgCO₃/kg and tryptophan (Trp) group with 5 g l-Trp/kg) during the last 5 days before slaughter. Animals were submitted to minimal stress antemortem conditions. Pig behaviour w ...
DOI:
10.1016/j.livsci.2007.06.014

20. Effects of genetic capacity on milk production and on plasma metabolites in dairy cows during post-ruminal or intravenous carbohydrates or amino acid infusions

Author:
Schei, I.; Boman, I.A.; Volden, H.
Source:
Livestock science 2008 v.116 no.1-3 pp. 246-259
ISSN:
1871-1413
Subject:
cow feeding; dairy cows; carbohydrate metabolism; ruminant nutrition; dietary protein; lactation stage; hormone secretion; intravenous injection; metabolites; dietary carbohydrate; amino acids; milk yield; abomasum; line differences; amino acid metabolism; nutrient use efficiency; animal genetics
Abstract:
... The objectives of this study were to investigate the effects of genetic capacity on abomasal and intravenous infusions of wheat starch or glucose (CHO) or a mixture of amino acids (AA) on milk production, nitrogen utilization efficiency, plasma metabolites and hormones of dairy cows in early and late lactation. Eight cows from two genetic lines selected for low (L) and high (H) milk production wer ...
DOI:
10.1016/j.livsci.2007.10.012

21. Genetic correlations between gestation length, piglet survival and early growth

Author:
Rydhmer, Lotta; Lundeheim, Nils; Canario, Laurianne
Source:
Livestock science 2008 v.115 no.2-3 pp. 287-293
ISSN:
1871-1413
Subject:
parity (reproduction); maternal effect; animal growth; genetic correlation; animal genetics; pregnancy; mortality; gestational age; sows; selection criteria; heritability; litter size; piglets; embryonic mortality; birth weight
Abstract:
... This study is based on 12708 first-parity and 7062 second-parity Yorkshire litters from Swedish nucleus herds; and on 1037 first-parity Yorkshire litters from an experimental herd. Gestation length was analysed together with litter size, piglet mortality and average piglet growth rate. A sire-dam model was used to estimate direct (litter) and maternal (sow) genetic effects. Direct heritability for ...
DOI:
10.1016/j.livsci.2007.08.014

22. Genetic parameters for maternal behaviour traits in sows

Author:
Gäde, S.; Bennewitz, J.; Kirchner, K.; Looft, H.; Knap, P.W.; Thaller, G.; Kalm, E.
Source:
Livestock science 2008 v.114 no.1 pp. 31-41
ISSN:
1871-1413
Subject:
sows; animal behavior; maternal behavior; group behavior; abnormal behavior; human-animal relations; animal genetics; genetic variance; heritability; litter size; piglets; neonatal mortality; genetic correlation; quantitative traits; reproductive traits; breeding value; genetic merit; statistical analysis; linear models
Abstract:
... Data from 32 nucleus and multiplier herds in Germany was used to estimate variance components and breeding values for five maternal behaviour traits in sows. The estimation was performed univariately using an animal threshold model. About 31,000 farrowings recorded from December 2003 until July 2005 were included. The heritability coefficients were 0.07 (0.06) for group behaviour, 0.06 (0.03) for ...
DOI:
10.1016/j.livsci.2007.04.006

23. Genetic parameters of biokinematic variables at walk in the Spanish Purebred (Andalusian) horse using experimental treadmill records

Author:
Molina, A.; Valera, M.; Galisteo, A.M.; Vivo, J.; Gómez, M.D.; Rodero, A.; Agüera, E.
Source:
Livestock science 2008 v.116 no.1-3 pp. 137-145
ISSN:
1871-1413
Subject:
animal genetics; gait; horses; horse breeds; exercise test; heritability; genetic correlation; animal breeding; selection criteria
Abstract:
... The breeding scheme of Spanish Purebred (SPB) horses includes the selection of dressage performance as a main objective. Specific characteristics of the gaits are required for dressage aptitude and some could be selected for genetically. The gait of 130 SPB horses was recorded on a treadmill at walk (1.7 m/s). Nineteen biokinematic variables were analysed, 18 were directly measured from the video ...
DOI:
10.1016/j.livsci.2007.09.021

24. Morphological analysis and effect of selection for conformation in the Noriker draught horse population

Author:
Druml, T.; Baumung, R.; Sölkner, J.
Source:
Livestock science 2008 v.115 no.2-3 pp. 118-128
ISSN:
1871-1413
Subject:
horse breeds; horses; selection criteria; animal breeding; hairs; phenotypic variation; animal housing; color; animal genetics; genetic correlation; multivariate analysis; heritability; Austria
Abstract:
... To evaluate the breeding program in the Austrian Noriker draught horse population, which is mostly based on conformation, 31 body measurements from 497 horses in seven breeding areas of Austria were recorded. In addition, the data of 2376 horses (the current breeding population) from the studbook, containing 10 scored conformation traits and 4 body measurements per individual, were analysed. We as ...
DOI:
10.1016/j.livsci.2007.06.015

25. Results of four generations of a canalising selection for rabbit birth weight

Author:
Garreau, H.; Bolet, G.; Larzul, C.; Robert-Granié, C.; Saleil, G.; SanCristobal, M.; Bodin, L.
Source:
Livestock science 2008 v.119 no.1-3 pp. 55-62
ISSN:
1871-1413
Subject:
rabbits; selection criteria; quantitative traits; birth weight; litter size; mortality; animal genetics; genotype; phenotype; environmental factors; genotype-environment interaction; breeding lines; selection response; correlated responses; genetic variance; divergent evolution
Abstract:
... A divergent selection experiment based on the homogeneity of birth weight in rabbit was carried out at the INRA experimental farm of Auzeville. The two lines were created by selecting breeding does and bucks from the female strain AGP22 bred at the Grimaud Frères Sélection company for environmental variability of birth weight. This involved a new model incorporating a genotypic value for the mean ...
DOI:
10.1016/j.livsci.2008.02.009

26. The effect of maternal nutrient restriction during late gestation on muscle, bone and meat parameters in five month old lambs

Author:
Tygesen, M.P.; Harrison, A.P.; Therkildsen, M.
Source:
Livestock science 2007 v.110 no.3 pp. 230-241
ISSN:
1878-0490
Subject:
skeletal development; nutrient content; restricted feeding; lamb meat; meat production; animal growth; paternal effect; males; pregnancy; bone density; muscle tissues; maternal nutrition; lambs; ewes; compensatory growth; meat tenderness; animal breeding; bone strength; animal genetics
DOI:
10.1016/j.livsci.2006.11.003

27. Divergent selection for fleece weight in French Angora rabbits: Non-genetic effects, genetic parameters and response to selection

Author:
Rafat, S.A.; Allain, D.; Thebault, R.G.; Rochambeau, H. de
Source:
Livestock science 2007 v.106 no.2-3 pp. 169-175
ISSN:
1878-0490
Subject:
rabbits; selection criteria; animal breeding; fleece; weight; animal fibers; Angora (rabbit breed); animal genetics; genetic variation; cohort studies; product quality; France
DOI:
10.1016/j.livsci.2006.08.001

28. Genetic analysis of competition data on Icelandic horses

Author:
Albertsdóttir, E.; Eriksson, S.; Näsholm, A.; Strandberg, E.; Árnason, T.
Source:
Livestock science 2007 v.110 no.3 pp. 242-250
ISSN:
1878-0490
Subject:
longitudinal studies; environmental factors; racehorses; data analysis; walking; heritability; trotting; gait; quantitative traits; animal genetics; racing performance; Iceland
DOI:
10.1016/j.livsci.2006.11.008

29. Genetic determination of individual birth weight, litter weight and litter size in Mukota pigs

Author:
Chimonyo, M.; Dzama, K.; Bhebhe, E.
Source:
Livestock science 2006 v.105 no.1-3 pp. 69-77
ISSN:
1878-0490
Subject:
swine breeds; heritability; litter size; phenotype; probability analysis; liveweight gain; multivariate analysis; animal genetics; maternal effect; reproductive traits; mortality; breeding value; swine; animal growth; litter weight; genetic correlation; selection criteria; birth weight
DOI:
10.1016/j.livsci.2006.04.034

30. Genetic variability of the resistance for three types of enteropathy in the growing rabbit

Author:
Rochambeau, H. de; Licois, D.; Gidenne, T.; Verdelhan, S.; Coudert, P.; Elsen, J.M.
Source:
Livestock science 2006 v.101 no.1-3 pp. 110-115
ISSN:
1878-0490
Subject:
rabbits; sires; coccidiosis; enteropathogens; weanlings; genetic resistance; dietary fiber; enterocolitis; nutrient deficiencies; genetic variation; emerging diseases; deficiency diseases; protozoal infections; disease resistance; parentage; animal genetics; stress tolerance
DOI:
10.1016/j.livprodsci.2005.10.019

31. Identification of polymorphisms and association analysis with meat quality traits in the porcine KIAA1717 and HUMMLC2B genes

Author:
Xu, D.Q.; Liu, M.; Xiong, Y.Z.; Deng, C.Y.; Jiang, S.W.; Li, J.L.; Zuo, B.; Lei, M.G.; Li, F.E.; Zheng, R.
Source:
Livestock science 2007 v.106 no.1 pp. 96-101
ISSN:
1878-0490
Subject:
pork; animal breeding; genetic markers; marker-assisted selection; livestock production; skeletal muscle; myosin light chains; animal genetics; restriction fragment length polymorphism; marbling; polymerase chain reaction; water content; longissimus muscle; quantitative traits; drip loss; lipid content; circular DNA; swine; pH; color; methyltransferases
DOI:
10.1016/j.livsci.2006.07.005

32. New genetic parameters to exploit genetic variability in low input production systems

Author:
Romdhani, S.B.; Djemali, M.
Source:
Livestock science 2006 v.99 no.2-3 pp. 119-123
Subject:
animal genetics; animal growth; sheep; low input agriculture; animal performance; sheep breeds; genetic variance; additive gene effects; maternal effect
Abstract:
... Under low input production systems, low heritabilities for growth traits have been a major limiting factor for recommending selection to improve animal productivity. Heritabilities low values were usually due to a large error variance leading to a dilution of the genetic variability. A total of 11,802 Barbarine lambs, from 606 breeding rams and 2428 breeding ewes, born during the period 1972-2002 ...

33. Performance in racehorses of various colours

Author:
Stachurska, A.; Pieta, M.; Lojek, J.; Szulowska, J.
Source:
Livestock science 2007 v.106 no.2-3 pp. 282-286
ISSN:
1878-0490
Subject:
racing performance; racehorses; color; hairs; animal genetics; analysis of variance; quantitative genetics; genes
DOI:
10.1016/j.livsci.2006.07.017

34. Relation of porcine myogenin gene PCR/RFLP MspI and reproduction traits of the Czech Large White sows

Author:
Humpolíček, P.; Urban, T.; Tvrdoň, Z.
Source:
Livestock science 2007 v.110 no.3 pp. 288-291
ISSN:
1878-0490
Subject:
swine; reproductive traits; animal breeding; livestock production; carcass characteristics; animal genetics; quantitative traits; Large White; purebreds; genes; muscle tissues; muscle development; meat quality; polymerase chain reaction; restriction fragment length polymorphism; conception; insemination; litter size; Czech Republic
DOI:
10.1016/j.livsci.2007.02.015

35. Stochastic simulation of Manchega sheep breed selection scheme. Impact of artificial insemination, progeny testing system and nucleus size on genetic progress and inbreeding

Author:
Smulders, J.P.; Serrano, M.; Pérez-Guzmán, M.D.; Jimenez, M.A.; Uribe, H.; Jurado, J.J.
Source:
Livestock science 2007 v.106 no.2-3 pp. 218-231
ISSN:
1878-0490
Subject:
simulation models; sheep; genetic improvement; selection criteria; inbreeding; stochastic processes; artificial insemination; sheep breeds; animal genetics; Spain
DOI:
10.1016/j.livsci.2006.08.008

36. Testing genetic determinism in rate of hoof growth in pigs using Bayes Factors

Author:
Quintanilla, R.; Varona, L.; Noguera, J.L.
Source:
Livestock science 2006 v.105 no.1-3 pp. 50-56
ISSN:
1878-0490
Subject:
swine; animal development; hooves; animal genetics; purebreds; females; Large White; Pietrain; breed differences; animal growth; heritability; genetic variance; genetic correlation; probit analysis; Bayesian theory; probability analysis; abnormal development
DOI:
10.1016/j.livsci.2006.04.030

37. Time-to-event analysis of mastitis at first-lactation in Valle del Belice ewes

Author:
Portolano, B.; Finocchiaro, R.; Kaam, J.B.C.H.M. van; Riggio, V.; Maizon, D.O.
Source:
Livestock science 2007 v.110 no.3 pp. 273-279
ISSN:
1878-0490
Subject:
ewes; dairy animals; sheep diseases; mastitis; sheep breeds; pathogenesis; lambing; seasons; parturition interval; lactation; animal genetics; heritability; estimation; flocks; disease detection; somatic cell count; milk yield; statistical analysis
DOI:
10.1016/j.livsci.2006.11.010

38. Balancing selection in Polish Arabian horses

Author:
Głażewska, I.; Gralak, B.
Source:
Livestock science 2006 v.105 no.1-3 pp. 272-276
ISSN:
1878-0490
Subject:
genetic polymorphism; animal proteins; inbreeding coefficient; animal breeding; heterozygosity; inbreeding; genetic markers; mares; genetic variation; Arabian (horse breed); selection criteria; pedigree; animal genetics; Poland
DOI:
10.1016/j.livsci.2006.06.004

39. Effects of GHR gene polymorphisms on growth and carcass traits in Zebu and crossbred beef cattle

Author:
Curi, R.A.; Palmieri, D.A.; Suguisawa, L.; Ferraz, A.L.J.; Oliveira, H.N. de; Furlan, L.R.; Silveira, A.C.; Lopes, C.R.
Source:
Livestock science 2006 v.101 no.1-3 pp. 94-100
ISSN:
1878-0490
Subject:
animal growth; carcass characteristics; alleles; linear models; somatotropin; crossbreds; intensive livestock farming; hormone receptors; beef cattle; liveweight gain; genotype; gene frequency; genetic variation; genetic polymorphism; Nellore; animal genetics
DOI:
10.1016/j.livprodsci.2005.09.015

40. Mammary development and milk production in the sow: Effects of udder massage, genotype and feeding in late gestation

Author:
Thodberg, K.; Sørensen, M.T.
Source:
Livestock science 2006 v.101 no.1-3 pp. 116-125
ISSN:
1878-0490
Subject:
milk secretion; tissue analysis; massage; genotype; mammary glands; animal genetics; quantitative analysis; pregnancy; milk synthesis; feeding behavior; sows; postpartum period; biological development; milk yield; udders; diet; sow feeding; lactation; suckling
DOI:
10.1016/j.livprodsci.2005.10.020

41. Precision of estimated QTL positions in granddaughter designs using combined haplotype sharing TDT and linkage analysis

Author:
Kolbehdari, D.; Jansen, G.B.; McMillan, I.; Schaeffer, L.R.
Source:
Livestock science 2006 v.105 no.1-3 pp. 137-143
ISSN:
1878-0490
Subject:
quantitative trait loci; estimation; Monte Carlo method; prediction; simulation models; alleles; haplotypes; linear models; probability analysis; linkage disequilibrium; livestock; genetic markers; regression analysis; accuracy; animal genetics; quantitative traits
DOI:
10.1016/j.livsci.2006.05.003

42. Selection for ovulation rate in rabbits

Author:
Ibáñez, N.; Antonía Santacreu, M.; Martinez, M.; Climent, A.; Blasco, A.
Source:
Livestock science 2006 v.101 no.1-3 pp. 126-133
ISSN:
1878-0490
Subject:
rabbits; selection index; ovulation; inheritance (genetics); heritability; animal breeding; litter size; uterus; females; animal genetics; frequency; statistical analysis; mortality; viability; genetic merit; genetic correlation; Bayesian theory; selection criteria
DOI:
10.1016/j.livprodsci.2005.10.024

43. Utility of on- and off-farm weather records for studies in genetics of heat tolerance

Author:
Freitas, M.S.; Misztal, I.; Bohmanova, J.; West, J.
Source:
Livestock science 2006 v.105 no.1-3 pp. 223-228
ISSN:
1878-0490
Subject:
dairy cows; heat tolerance; relative humidity; genetic correlation; ambient temperature; data collection; probability analysis; heat stress; validity; farm records; Holstein; weather stations; milk yield; animal genetics; prediction; Georgia
DOI:
10.1016/j.livsci.2006.06.011