scholarly journals Additive genetic, heterosis and maternal effects on production traits in a crossing experiment between Dutch Friesian and Holstein Friesian cattle

1980 ◽  
Vol 12 (1) ◽  
pp. 116c
Author(s):  
JK Oldenbroek
Keyword(s):  
Maternal Effects ◽  
Production Traits ◽  
Crossing Experiment ◽  
Holstein Friesian ◽  
Friesian Cattle

scholarly journals Genetic parameters of incidence of dytsocia and number of stillbirths in population of Holstein-Friesian cows in Vojvodina

2011 ◽  
Vol 27 (3) ◽  
pp. 1051-1058
Author(s):  
S. Trivunovic ◽  
D. Ivanovic ◽  
D. Kucevic ◽  
V. Pantelic ◽  
J. Korora ◽  
...  
Keyword(s):  
Genetic Parameters ◽  
Cattle Breed ◽  
Control Program ◽  
Study Data ◽  
Production Traits ◽  
Still Births ◽  
Holstein Friesian ◽  
Breeding Goals ◽  
Friesian Cattle ◽  
Friesian Cows

For today?s trends in contemporary production of milk and meat, selection only for production traits is completely unacceptable, since it can contribute to numerous metabolic disorders and shortening of the production life of the animal. Contemporary breeding goals and programs are directed towards, first of all, reaching and maintaining of the optimal balance between production and functional traits without compromising the health and ethological characteristics of animals. Regardless of the breeding objective, i.e. defined program, fertility traits and fitness properties, that is the properties relating to resistance to diseases, must be included. In many countries, problems with calving difficulties and increase of mortality rate of calves in Black and White breeds occurred with the increase of share of Holstein genes in the population of Friesian cattle. Objective of this study is to present the data on number of difficult parities (calving) and number of still born claves (still births) in population of Holstein-Friesian cows in Vojvodina, and to calculate and present genetic parameters for mentioned traits. In this study, data was used on the incidence of difficult calving and number of still born claves (still births) obtained from the calving register for all producers included in the animal control program, carried out by the Faculty of Agriculture from Novi Sad, Animal Science Department, as Main breeding organization for Holstein-Friesian cattle population in Vojvodina. Data refer to years 2008 and 2009, with total of 35000 calvings. Based on calculated parameters, factors were defined which influence the expression of mentioned traits, with major impact on the economical efficiency of the milk production. It is expected that, in spite of low heritability level of 0.149 for dystocia and 0.160 for number of stillbirths, by applying the accurate methods of their genetic assessment, studied traits can be included in the breeding goals of Holstein-Friesian cattle breed in Vojvodina.

SEPARATION AND GENE FREQUENCIES OF BLOOD SERUM TRANSFERRIN, CASEIN AND BETA-LACTOGLOBULIN LOCI OF DAIRY CATTLE AND THEIR EFFECTS ON CERTAIN PRODUCTION TRAITS

1969 ◽  
Vol 49 (3) ◽  
pp. 331-341 ◽  
Author(s):  
M. P. Hoogendoorn ◽  
J. E. Moxley ◽  
R. O. Hawes ◽  
H. F. MacRae
Keyword(s):  
Population Structure ◽  
Serum Transferrin ◽  
Production Traits ◽  
Gene Frequencies ◽  
Holstein Friesian ◽  
Superior Genotypes ◽  
Beta Lactoglobulin ◽  
Β Lactoglobulin ◽  
Friesian Cattle ◽  
Percentage Protein

A procedure was developed for the simultaneous phenotyping of β-casein and β-lactoglobulin at acid pH. The population structure of the transferrin, αs1-casein, β-casein, κ-casein and β-lactoglobulin loci as well as their relationship with different production traits was studied for some herds of Ayrshire, Canadian, Holstein-Friesian, Jersey and Milking Shorthorn breeds representing approximately 1300 animals. The transferrin alleles, Tf A, D1, D2 and E were found in the Ayrshire and Holstein-Friesian breeds. The αs1-casein alleles A, B and C were observed; the A allele was present in the Holstein-Friesian cattle only. The A1 and A2 alleles of β-casein were found in all the breeds, while the C allele was present in the Milking Shorthorn and the A3 allele in the Holstein-Friesian breed. The B allele was absent only from the Milking Shorthorn breed. Both A and B alleles were present at the κ-casein locus in all breeds. Both β-lactoglobulin alleles A and B were observed in all breeds. Some relationships were found between the different loci (alone and in combination) and the percentage butterfat, percentage protein and percentage lactose. Differences between breeds with regard to superior genotypes were observed.

scholarly journals An association of C/T polymorphism in exon 2 of the bovine insulin-like growth factor 2 gene with meat production traits in Polish Holstein-Friesian cattle

2010 ◽  
Vol 55 (No. 6) ◽  
pp. 227-233 ◽  
Author(s):  
L. Zwierzchowski ◽  
E. Siadkowska ◽  
J. Oprz dek ◽  
K. Flisikowski ◽  
E. Dymnicki
Keyword(s):  
Growth Factor ◽  
Bovine Insulin ◽  
Paternal Allele ◽  
Meat Production ◽  
Insulin Like Growth Factor ◽  
Production Traits ◽  
Exon 2 ◽  
Igf2 Gene ◽  
Holstein Friesian ◽  
Friesian Cattle

The effect of the insulin-like growth factor 2 (IGF2) gene polymorphism – a g.292C>T transition in exon 2 on feed uptake and conversion, growth rates, and meat production traits in Polish Holstein-Friesian cattle was investigated. A total of 291 young bulls were genotyped using restriction fragment length polymorphism (RFLP-BsrI). Animals were slaughtered at the age of 11 or 15 months and carcass traits were examined. At the age of 11 months the association was shown of the CC genotype with higher cold carcass weight, daily gain and meat content (%) in valuable cuts. At 15 months of age the CC genotype bulls showed higher live body weight, whereas those with the CT genotype had more fat in valuable cuts. The TT genotype bulls appeared to consume more feed (dry matter and protein) and used more feed for maintenance and meat production as compared to the CC genotype. The imprinting status of the IGF2 gene was analysed using cDNA sequencing and RFLP-BsrI. In 15-months-old animals and in foetuses older than two months both IGF2 alleles, maternal and paternal, were equally expressed in liver. In a 2-months-old male foetus the IGF2 mRNA was primarily expressed from the paternal allele.  

scholarly journals Comparison of service period and lactation milk yields in dairy cows with single- and twin-calving

2018 ◽  
Vol 72 (2) ◽  
pp. 112-121
Author(s):  
Maximiliane Dörstelmann ◽  
Melinda Ari ◽  
Zsolt Becskei ◽  
László Gulyás ◽  
András Gáspárdy
Keyword(s):  
Milk Yield ◽  
Fixed Effects ◽  
Large Scale ◽  
Contradictory Result ◽  
Production Traits ◽  
Length Of Service ◽  
Service Period ◽  
Holstein Friesian ◽  
Significant Difference ◽  
Friesian Cattle

Introduction. Twin-calving occurs in 3 to 5 % of Holstein Friesian cattle, and it is mostly followed by reproductive and economic problems. This evaluation will compare the service period and the milk yield in cows with single and twin births at a Hungarian large-scale farm. Materials and Methods. The data were collected from 4223 cows between 2000 and 2010. In Cox?s regression model (service period) and general linear model (milk production traits), the type of calving (single/twin), the construction code (referring to the Holstein Friesian blood proportion), the season and number of calvings were fixed effects, and furthermore, the year of calving was a covariate. Results and Conclusions. This analysis showed there was no significant difference in the length of service period (SP) between the two groups of cows. The total lactation milk yield produced a meaningful difference in performance: single-calving cows had greater milk yield (p=0.013), fat yield (p=0.030), and protein yield (p=0.028) than cows with twins. The standard lactation milk yield showed the same tendency at a stronger significance and a lower level of production. This unexpected and contradictory result in service period could be explained by the much longer period of open days in twinning cows, known from previous research. Regarding milk yield, an involuntary decrease for cows after twin calving was confirmed.

scholarly journals Polymorphism of bovine lipocalin-2 gene and its impact on milk production traits and mastitis in Holstein Friesian cattle

2019 ◽  
Vol 40 ◽  
pp. 17-21 ◽  
Author(s):  
Joanna Pokorska ◽  
Agata Piestrzyńska-Kajtoch ◽  
Dominika Kułaj ◽  
Andrzej Ochrem ◽  
Anna Radko
Keyword(s):  
Milk Production ◽  
Production Traits ◽  
Lipocalin 2 ◽  
Milk Production Traits ◽  
Holstein Friesian ◽  
Friesian Cattle
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