scholarly journals Evaluation of genetic variation in the international Brown Swiss population

animal ◽  
2013 ◽  
Vol 7 (7) ◽  
pp. 1060-1066 ◽  
Author(s):  
G.M. Worede ◽  
F. Forabosco ◽  
B. Zumbach ◽  
V. Palucci ◽  
H. Jorjani
Keyword(s):  
Genetic Variation ◽  
Brown Swiss ◽  
Swiss Population

Effects of birth weight and sex on some economic traits in Brown Swiss calves

2007 ◽  
Vol 2007 ◽  
pp. 192-192
Author(s):  
Behnam Saremi ◽  
Atieh Rahimi
Keyword(s):  
Environmental Management ◽  
Birth Weight ◽  
Dairy Industry ◽  
Metabolic Stress ◽  
Cost Effective ◽  
Economic Traits ◽  
Factors Affecting ◽  
Brown Swiss ◽  
Swiss Population ◽  
Successful Production

From birth to weaning calves tolerate most stress include metabolic stress and parturition and at new environment obtained nutrients from milk instead of mother blood. In order to successful production of calves, a set of nutritional and environmental management is needed. Calves mortality from birth to weaning is too much and cost effective for dairy industry. Instead, there is low mortality of heifers from weaning to parturition (1). Brown Swiss breed has low population in respect to Holstein in Iran. Low data is available about Brown Swiss population especially Brown Swiss calves. This study conducted to determine some information about Brown Swiss calves from birth to weaning and factors affecting economic traits at this period.

scholarly journals Genetic analysis of fertility in the Italian Brown Swiss population using different models and trait definitions

2011 ◽  
Vol 94 (12) ◽  
pp. 6162-6172 ◽  
Author(s):  
F. Tiezzi ◽  
C. Maltecca ◽  
M. Penasa ◽  
A. Cecchinato ◽  
Y.M. Chang ◽  
...  
Keyword(s):  
Genetic Analysis ◽  
Brown Swiss ◽  
Swiss Population

scholarly journals High Genetic Similarity Among Populations of Phaeosphaeria nodorum Across Wheat Cultivars and Regions in Switzerland

1997 ◽  
Vol 87 (11) ◽  
pp. 1134-1139 ◽  
Author(s):  
S. M. Keller ◽  
M. S. Wolfe ◽  
J. M. McDermott ◽  
B. A. McDonald
Keyword(s):  
Genetic Variation ◽  
Gene Diversity ◽  
Random Mating ◽  
Dna Fingerprint ◽  
Wheat Cultivars ◽  
Host Genotype ◽  
Phaeosphaeria Nodorum ◽  
Geographical Regions ◽  
Swiss Population ◽  
Pathogen Populations

Phaeosphaeria nodorum was sampled from nine wheat fields across a 30-km transect representing three geographical regions in Switzerland to determine the scale of genetic differentiation among subpopulations. Three different wheat cultivars were sampled three times to determine whether differences in host genotype correlated with differences among corresponding pathogen populations. Seven restriction fragment length polymorphism (RFLP) loci and one DNA fingerprint were assayed for each of the 432 isolates in the collection. DNA fingerprints differentiated 426 unique genotypes. Though absolute differences were small, five RFLP loci exhibited significant differences in allele frequencies across the nine sub-populations. Gene diversity within all subpopulations was high (HT = 0.51), but only 3% of the total genetic variation was distributed among the nine subpopulations. When subpopulations were grouped according to geographical region or host cultivar, less than 1% of the genetic variation was distributed among groups, suggesting widespread gene flow and the absence of pathogen adaptation to specific wheat cultivars. Tests for gametic equilibrium within subpopulations and across the entire Swiss population supported the hypothesis of random mating.

scholarly journals Genetic variation and effects of candidate-gene polymorphisms on coagulation properties, curd firmness modeling and acidity in milk from Brown Swiss cows

animal ◽  
2015 ◽  
Vol 9 (7) ◽  
pp. 1104-1112 ◽  
Author(s):  
A. Cecchinato ◽  
S. Chessa ◽  
C. Ribeca ◽  
C. Cipolat-Gotet ◽  
T. Bobbo ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Candidate Gene ◽  
Gene Polymorphisms ◽  
Brown Swiss

Genetic variation at five microsatellite loci in four breeds of cattle

1996 ◽  
Vol 127 (4) ◽  
pp. 533-538
Author(s):  
J. J. Arranz ◽  
Y. Bayón ◽  
F. San Primitivo
Keyword(s):  
Genetic Variation ◽  
Information Content ◽  
Microsatellite Loci ◽  
Polymorphism Information Content ◽  
Gene Diversity ◽  
Central Area ◽  
Effective Number ◽  
Brown Swiss ◽  
Different Populations

SUMMARYGenetic variation was analysed in cattle from the central area of Spain, in 1993, for the following microsatellite loci: CYP21, BOVTAU, ETH131, ILSTS002 and ILSTS005. The breeds studied were Morucha (n = 104), Sayaguesa (n = 60), Brown Swiss (n = 90) and two different populations of Avilena-Negra Iberica (n = 134 and n = 104). Morucha cattle showed the largest number of different alleles (66), whereas Sayaguesa exhibited the lowest (38). Values of number of observed alleles, gene diversity, polymorphism information content and effective number of alleles indicated that the microsatellite showing the highest variability was CYP21, followed by ETH131, ILSTS002, BOVTAU and ILSTS005.

scholarly journals Genetic evaluations for measures of the milk-flow curve in the Italian Brown Swiss population

2011 ◽  
Vol 94 (2) ◽  
pp. 960-970 ◽  
Author(s):  
K.A. Gray ◽  
F. Vacirca ◽  
A. Bagnato ◽  
A.B. Samoré ◽  
A. Rossoni ◽  
...  
Keyword(s):  
Flow Curve ◽  
Brown Swiss ◽  
Milk Flow ◽  
Swiss Population ◽  
Genetic Evaluations

Environmental and Genetic Variation in Milk Yield of Native Cattle and Crosses with Brown Swiss in India2

1984 ◽  
Vol 59 (1) ◽  
pp. 74-85 ◽  
Author(s):  
F. Ruvuna ◽  
I. L. Mao ◽  
R. E. McDowell ◽  
M. Gurnani
Keyword(s):  
Genetic Variation ◽  
Milk Yield ◽  
Brown Swiss ◽  
Native Cattle

scholarly journals Quantitative Trait Loci Affecting Milk Yield and Protein Percentage in a Three-Country Brown Swiss Population

2008 ◽  
Vol 91 (2) ◽  
pp. 767-783 ◽  
Author(s):  
A. Bagnato ◽  
F. Schiavini ◽  
A. Rossoni ◽  
C. Maltecca ◽  
M. Dolezal ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Milk Yield ◽  
Quantitative Trait ◽  
Protein Percentage ◽  
Brown Swiss ◽  
Swiss Population ◽  
Trait Loci

EVALUATION OF LIFETIME PRODUCTION OF TOP COWS IN DIFFERENT DAIRY BREEDS

2000 ◽  
Vol 48 (2) ◽  
pp. 177-184
Author(s):  
M. Horvai Szabó ◽  
J. Dohy ◽  
G. Holló
Keyword(s):  
Milk Fat ◽  
Protein Production ◽  
Milk Protein ◽  
Rank Correlation ◽  
Close Correlation ◽  
Protein Yield ◽  
Weak Correlation ◽  
Brown Swiss ◽  
Swiss Population ◽  
Holstein Population

Cows of different breeds with high lifetime production were analysed in order to choose the best producers for embryo donors. The cows were ranked based on their milk protein yield, and a rank correlation was calculated between milk and protein yield and age. The probability of a correlation breaker was also investigated. In the Swiss Simmental breed it was found that the lower the protein production, the lower the correlation. This tendency was characteristic for the Brown Swiss population, too. In the first Osnabrück Holstein subpopulation a close correlation (0.74) was found, but not in the other two. The ratio of correlation breakers in the three subpopulations was 12.5%, 33.3% and 56.3%. In populations of German Black & White and Red & White the correlation was very close (0.9 and 0.84, respectively). The ratio of correlation breakers was 26.7% and 22.2%. In the Hungarian Holstein population the correlation was weak (0.29), so the ratio of correlation breakers was relatively high. The value of the rank correlation coefficient between the milk fat and milk quantity of the top cows of the Jersey breed was 0.26, indicating a weak correlation. The ratio of correlation breakers was 36.4%.

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