Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

    Current refinement(s):

    Records 1 - 17 / 17

    • help
    • print

      Print search results

    • export

      Export search results

    Check title to add to marked list
    Bloedgroepen bij rundvee. Deel 2: Verschillen tussen zwartbont en roodbont
    Oldenbroek, J.K. ; Buys, J. - \ 2014
    Zeldzaam huisdier 39 (2014)2. - ISSN 0929-905X - p. 10 - 13.
    rundveeteelt - bloedgroepen - rundveerassen - rassen (dieren) - genetische variatie - roodbont maas-rijn-ijsselvee - groninger blaarkop - zwartbont - zeldzame rassen - cattle farming - blood groups - cattle breeds - breeds - genetic variation - meuse-rhine-yssel - groningen white headed - holstein-friesian - rare breeds
    In het vorige nummer is uiteengezet wat bloedgroepen zijn en dat met bloedgroepen erfelijke verschillen en overeenkomsten tussen rassen aangetoond kunnen worden. In 1993 heeft John Bruin de verschillen tussen zwartbonte en roodbonte runderen onderzocht. Dit is het laatste onderzoek geweest dat met bloedgroepen is uitgevoerd.
    Oude koeienrassen op de reservebank
    Vries, F. de; Hiemstra, S.J. ; Sulkers, H. - \ 2012
    Veehouder en Dierenarts 26 (2012)1. - ISSN 1381-8007 - p. 44 - 47.
    melkveerassen - zwartbont - rundveerassen - zeldzame rassen - dierveredeling - functionele biodiversiteit - friese roodbonte - genetische bronnen van diersoorten - dairy breeds - holstein-friesian - cattle breeds - rare breeds - animal breeding - functional biodiversity - dutch red pied friesian - animal genetic resources
    Lang niet iedereen is overtuigd van de hedendaagse melktypische Holstein-Friesian-koe. Volgens sommige veehouders moeten oude rassen in ere worden hersteld.
    Parameters for natural resistance in bovine milk
    Ploegaert, T.C.W. - \ 2010
    Wageningen University. Promotor(en): Huub Savelkoul; Johan van Arendonk, co-promotor(en): Edwin Tijhaar. - [S.l. : S.n. - ISBN 9789085858270 - 143
    melkkoeien - zwartbont - melk - rundermastitis - weerstand - immuunsysteem - immuniteit - natuurlijke antilichamen - genetische variatie - immunologie - diergezondheid - dairy cows - holstein-friesian - milk - bovine mastitis - resistance - immune system - immunity - natural antibodies - genetic variation - immunology - animal health
    Parameters for natural resistance in bovine milk
    Mastitis or udder inflammation is one of the most important health problems of dairy cattle. Resistance against mastitis and many other diseases is partly based on the naturally present disease resistance capacity: innate immunity. This research therefore aimed to identify adequate immune parameters and determine their relation with the susceptibility of the individual animal for mastitis and possibly also other health problems. Natural antibodies (NAb) were found suitable to further study their relation with natural resistance of dairy cows. Heritability of NAb in milk samples of heifers (cows that had a calf for the first time) was low to moderate, which gives potential for genetic selection. It should, however, be investigated if selection for improved NAb levels has unintentionally also negative relations with other selection traits. Furthermore, NAb could also be influenced by management factors, but this would be a subject for future study. Besides, results suggested that higher levels of certain NAb in milk can decrease the risk for high Somatic Cell Count (in heifers), clinical mastitis and genital organ and fertility problems. However, heifers appear to differ from older cows in the relation of their NAb levels with risk for CM and high SCC, and the (udder) health history also affects this relation.
    Ex Situ Conservation Of Holstein-Friesian Cattle - Comparing The Dutch, French And USA Germplasm Collections
    Danchin-Burge, C. ; Blackburn, H. ; Hiemstra, S.J. - \ 2010
    genenbanken - genetische variatie - cryopreservering - frankrijk - vs - nederland - zwartbont - stieren (bulls) - ex-situ conservering - gene banks - genetic variation - cryopreservation - france - usa - netherlands - holstein-friesian - bulls - ex situ conservation
    The establishment of gene banks using cryopreservation to secure the genetic diversity of farm breeds have been widely assessed. France, the Netherlands and the USA were among the first countries to organize national cryobanks and these banks are now 10 to 20 years old. All three countries have started Holstein-Friesian (HF) collections to conserve as much genetic diversity as possible for this globally important breed. In order better understand the diversity captured in these collections, the genetic variability of HF collections within and between countries was assessed, and genetic variability of germplasm collections were compared with active bulls in each country. The overall aim of the project was to determine the breed’s security and to guide future collection activities.
    Differences in genetic diversity in Holstein cattle with high and low genetic merit
    Engelsma, K.A. ; Veerkamp, R.F. ; Calus, M.P.L. ; Windig, J.J. - \ 2010
    zwartbont - genetische diversiteit - fokwaarde - melkproductie - afkomst - verwantschap - single nucleotide polymorphism - moleculaire merkers - holstein-friesian - genetic diversity - breeding value - milk production - ancestry - kinship - single nucleotide polymorphism - molecular markers
    Evaluations of genetic diversity in Holstein cattle based on pedigree data, indicate a decrease in genetic diversity in Holstein cattle, because of a lower effective population size and a higher relatedness compared to other cattle breeds. However, pedigree based diversity reflects only the overall genetic diversity, while for specific regions on the genome the genetic diversity might be completely different. The objective in this study was to compare genetic diversity across the genome between Holstein cattle with high and low genetic merit for milk production, using pedigree information and SNP data.
    Genetic analysis of protein composition of bovine milk
    Schopen, G.C.B. - \ 2010
    Wageningen University. Promotor(en): Johan van Arendonk, co-promotor(en): Marleen Visker; Henk Bovenhuis. - [S.l. : S.n. - ISBN 9789085856450 - 189
    zwartbont - melkeiwitten - melkvee - dierveredeling - genetische merkers - fokwaarde - genetische variatie - genexpressieanalyse - holstein-friesian - milk proteins - dairy cattle - animal breeding - genetic markers - breeding value - genetic variation - genomics
    This thesis is part of the Dutch Milk Genomics Initiative, and the general aim was to obtain more insight into the genetic background of bovine milk protein composition. Morning milk samples from roughly 2000 cows were analyzed for the six major milk proteins (αS1-casein, αS2-casein, β-casein, κ-casein, α-lactalbumin and β-lactoglobulin) using capillary zone electrophoresis.
    The estimated genetic parameters for milk protein composition showed that there was considerable genetic variation for milk protein composition and that the genetic correlations among the six major milk proteins were low. There was a strong negative genetic correlation between β-lactoglobulin and total casein in milk. The presence of genetic variation justified the performance of in-depth genetic analyses such as linkage and association mapping. A linkage study was performed to screen the whole bovine genome to identify chromosomal regions affecting milk protein composition. This study resulted in ten chromosomal regions, of which regions on BTA6, 11 and 14 showed the largest effect on milk protein composition. The confidence intervals of these regions were large, in general. Therefore, an association study was performed to narrow down these chromosomal regions and to detect new chromosomal regions affecting milk protein composition. The association study resulted in four main regions on BTA5, 6, 11 and 14, and also new regions were detected. These new regions may, in addition to the four main regions, play a role in the genetic regulation of milk protein synthesis.
    The milk protein composition is important for technological properties of milk. An increase in casein index is preferable for the cheese production. Therefore, four scenario’s, to increase casein index in milk, were discussed. The first scenario has been termed genetic differentiation, the second scenario was genetic selection based on estimated breeding values, the third scenario was genetic selection based on genotypes, and the last scenario was genomic selection. These four scenarios illustrated that there are opportunities to utilize genetic variation in milk protein composition.

    Hoornloze koeien in aantocht
    Windig, J.J. - \ 2009
    V-focus 2003 (2009)6. - ISSN 1574-1575 - p. 26 - 27.
    melkveehouderij - melkkoeien - zwartbont - hoornloosheid - dierveredeling - merkers - selectief fokken - dairy farming - dairy cows - holstein-friesian - polled condition - animal breeding - markers - selective breeding
    Hoornloosheid komt bij enkele koeienrassen voor. Om het in de huidige melkkoe in te fokken, zou een fokprogramma hulp kunnen bieden. De veehouderij vindt gebruik van zo'n programma prima, de gemiddelde burger is daar wat terughoudender in en ook meer verdeeld.
    Genome-wide scan for short and medium chain milk fatty acids
    Stoop, W.M. ; Schennink, A. ; Visker, M.H.P.W. ; Mullaart, E. ; Arendonk, J.A.M. van; Bovenhuis, H. - \ 2008
    melkvee - zwartbont - melkvet - vetzuren met een lange keten - loci voor kwantitatief kenmerk - merkers - genotyping - genexpressieanalyse - dairy cattle - holstein-friesian - milk fat - long chain fatty acids - quantitative trait loci - markers - genotyping - genomics
    Aim of this research was to identify Quantitative Trait Loci (QTL) for long chain milk fatty acids. Therefore 1905 Dutch Holstein Friesian heifers were phenotyped. One of the conclusions was that the identification of QTL for long chain fatty acids, and in particular for C18:1trans fatty acids, strongly supports the hypothesis of a genetic component for these fatty acids
    DGAT1 underlies large genetic variation in milk-fat composition of dairy cows
    Schennink, A. ; Stoop, W.M. ; Visker, M.H.P.W. ; Heck, J.M.L. ; Bovenhuis, H. ; Poel, J.J. van der; Valenberg, H.J.F. van; Arendonk, J.A.M. van - \ 2007
    Animal Genetics 38 (2007)5. - ISSN 0268-9146 - p. 467 - 473.
    dierveredeling - melkkoeien - melkvee - zwartbont - melksamenstelling - melkvet - vetzuren - lactatie - genetische variatie - genotypen - genetische parameters - heritability - selectief fokken - nederland - animal breeding - dairy cows - dairy cattle - holstein-friesian - milk composition - milk fat - fatty acids - lactation - genetic variation - genotypes - genetic parameters - heritability - selective breeding - netherlands - coa-diacylglycerol acyltransferase - serum-cholesterol - production traits - dietary-fat - bovine - acids - cattle - yield - parameters - disease
    Dietary fat may play a role in the aetiology of many chronic diseases. Milk and milk-derived foods contribute substantially to dietary fat, but have a fat composition that is not optimal for human health. We measured the fat composition of milk samples in 1918 Dutch Holstein Friesian cows in their first lactation and estimated genetic parameters for fatty acids. Substantial genetic variation in milk-fat composition was found: heritabilities were high for short- and medium-chain fatty acids (C4:0¿C16:0) and moderate for long-chain fatty acids (saturated and unsaturated C18). We genotyped 1762 cows for the DGAT1 K232A polymorphism, which is known to affect milk-fat percentage, to study the effect of the polymorphism on milk-fat composition. We found that the DGAT1 K232A polymorphism has a clear influence on milk-fat composition. The DGAT1 allele that encodes lysine (K) at position 232 (232K) is associated with more saturated fat; a larger fraction of C16:0; and smaller fractions of C14:0, unsaturated C18 and conjugated linoleic acid (P <0.001). We conclude that selective breeding can make a significant contribution to change the fat composition of cow¿s milk.
    Weiden spaart tijd : koeien lagekostenbedrijf vreten meer buiten de deur
    Hollander, C.J. - \ 2006
    Veeteelt 23 (2006)22. - ISSN 0168-7565 - p. 84 - 84.
    melkveehouderij - melkkoeien - rundveevoeding - montbeliard - zwartbont - beweidingssystemen - weiden - bijvoeding - agrarische bedrijfsvoering - proefbedrijven - proefboerderijen - dairy farming - dairy cows - cattle feeding - montbeliard - holstein-friesian - grazing systems - pastures - supplementary feeding - farm management - pilot farms - experimental farms
    In de afgelopen 3 weideseizoenen ('04, '05 en '06) is op het lagekostenbedrijf bijvoeding met mais sterk afgebouwd. Doel is namelijk om de koeien meer van het goedkopere gras te laten vreten. Wel steeg het ureumgehalte flink
    Ook in 2005 behaalt lagekostenbedrijf een hoger saldo met Montbéliarde
    Haan, M.H.A. de; Hemmer, J.G.A. ; Ouweltjes, W. - \ 2006
    V-focus 3 (2006)3. - ISSN 1574-1575 - p. 22 - 23.
    melkveehouderij - montbeliard - zwartbont - melkproductie - diergezondheid - rundveeziekten - bedrijfsvergelijking in de landbouw - agrarische bedrijfsvoering - proefbedrijven - bedrijfsresultaten in de landbouw - dairy farming - montbeliard - holstein-friesian - milk production - animal health - cattle diseases - farm comparisons - farm management - pilot farms - farm results
    In 2003 is de veestapel van het lagekostenbedrijf vervangen; deze bestaat sindsdien voor de helft uit Montbéliardes uit Frankrijk en voor de andere helft uit zwartbonte koeien van de Waiboerhoeve. In dit artikel worden de bedrijfskosten in de nieuwe situatie vergeleken met die in de oude situatie
    Sober voldoet: gezonde veestapel op lagekostenbedrijf
    Ouweltjes, W. - \ 2006
    Veeteelt 23 (2006)10. - ISSN 0168-7565 - p. 63 - 63.
    melkveehouderij - montbeliard - zwartbont - melkproductie - diergezondheid - rundveeziekten - bedrijfsvergelijking in de landbouw - agrarische bedrijfsvoering - proefbedrijven - dairy farming - montbeliard - holstein-friesian - milk production - animal health - cattle diseases - farm comparisons - farm management - pilot farms
    In 2003 is de veestapel van het lagekostenbedrijf vervangen; deze bestaat sindsdien voor de helft uit Montbéliardes en voor de andere helft uit Holsteins. De nieuwe veestapel heeft weinig gezondheidsproblemen. In dit artikel wordt de gezondheid van de veestapel in 2005 toegelicht en vergeleken met de jaren daarvoor
    Ras van biokoe : biologische melkveehouder zoekt bij bedrijf passend ras
    Smolders, E.A.A. - \ 2005
    Veeteelt 22 (2005)20. - ISSN 0168-7565 - p. 83 - 83.
    melkveehouderij - melkkoeien - biologische landbouw - melkveerassen - zwartbont - jersey - belgisch witblauw - agrarische bedrijfsvoering - dairy farming - dairy cows - organic farming - dairy breeds - holstein-friesian - jersey - belgian blue - farm management
    Uit de rasgegevens van de veestapels van 93 biologische bedrijven is nagegaan welke melkveerassen in de periode 1984-2003 in de biologische melkveehouderij werden toegepast.
    Contribution of Holstein cows to sustainability of dairy systems in Brazil
    Araujo Waltrick, B. de - \ 2003
    Wageningen University. Promotor(en): Herman van Keulen, co-promotor(en): W.J. Koops. - [S.I.] : S.n. - ISBN 9789058089052 - 184
    bedrijfssystemen - melkveehouderij - melkproductie - duurzaamheid (sustainability) - zwartbont - brazilië - farming systems - dairy farming - milk production - sustainability - holstein-friesian - brazil
    Keywords: sustainability,Holsteincows,Brazil

    This study presents an overview of the contribution of the to the sustainable development of dairy system in The indication of Holstein as the best dairy breed choice for dairy farming is evaluated, to understand constraints and opportunities of dairy farming in Brazil. The studies presented in this thesis evaluate systems' sustainability at society and at system level. Focus is given to a systems approach to explain and explore the function of dairy systems and their contribution to sustainable development. Starting with a view of production systems in relation to their economic, social and ecological context, then studies in-depth specific system components at animal level. Focus is given on cow's health and reproductive performance and their mutual relations regarding biological problems and metabolic events in lifetime. Genetic selection has resulted in considerable increases in production levels of the Holstein breed, but associated with this favourable development, animals selected for high production efficiency seem to be more at risk behavioural, physiological and immunological problems. Finally, by integrating public concern at society level and productivity aspects at production system level, a general framework for monitoring sustainability is proposed within the context of the dairy systems. Important indicators for on-farm sustainability evaluation are identified and discussed.
    Blaarkoppen bekeken
    Jong, G. ; Berentsen, P.B.M. - \ 2003
    Veeteelt 20 (2003)8. - ISSN 0168-7565 - p. 10 - 12.
    melkveehouderij - melkvee - zwartbont - zeldzame rassen - extensieve dierhouderij - intensieve dierhouderij - agrarische bedrijfsvoering - bedrijfsresultaten in de landbouw - bedrijfsvergelijking in de landbouw - dairy farming - dairy cattle - holstein-friesian - rare breeds - extensive husbandry - intensive husbandry - farm management - farm results - farm comparisons
    Voor extensieve melkveebedrijven is m.b.v. modelberekeningen een economische vergelijking gemaakt tussen blaarkoppen en HF-koeien
    Genetic aspects of somatic cell count in the Italian Holstein Friesian population
    Samore, A. - \ 2003
    Wageningen University. Promotor(en): Johan van Arendonk, co-promotor(en): Ab Groen. - [S.I.] : S.n. - ISBN 9789058087966 - 155
    zwartbont - rundveerassen - celgetal - genetische factoren - selectiecriteria - fokwaarde - genetische modellen - heritability - melkresultaten - kenmerken - dierveredeling - holstein-friesian - cattle breeds - somatic cell count - genetic factors - selection criteria - breeding value - genetic models - heritability - dairy performance - traits - animal breeding

    The objective of this thesis was to evaluate genetic aspects of somatic cell count (SCC) in Italian Holstein Friesian population in order to define how to include this trait in selection criteria. Several values of heritabilities were estimated (.06 to -.21) for three parities using different data sets and model of analysis. A model for breeding value estimations of first parity cows was defined and further improvements of the model were discussed. Genetic correlations with production were highly variable in value and sign depending on parity and model of analysis (-.14 to .24). Variation existed between and within lactation and it was concluded that it is important to account for this variation in selection. When a unique value is necessary, a correlations value around zero, indicating a null genetic relationship between production and SCC, should be used. Using an hazard model, it was estimated that an increase in phenotypic level of SCC in Italian Holstein population resulted in higher rate of culling. The approximate genetic correlation between SCC and functional longevity was .31 associating unfavourable values of SCC to poorer longevity. Favourable genetic correlations resulted between udder conformation traits and SCC. A higher udder, strongly attached to the fore abdominal wall, and with short teats was genetically related to smaller values of SCC. Finally an udder health index, including SCC, udder depth, and fore udder attachment was proposed and the inclusion of SCC in the overall selection index was discussed.

    Charolais x FH-stieren voor vleesproduktie
    Harmsen, W.L. - \ 1972
    Lelystad : Proefstation voor de Rundveehouderij (Rapport / Proefstation voor de Rundveehouderij 3) - 41
    vleesstieren - charolais - zwartbont - kruising - slachtdieren - nederland - beef bulls - charolais - holstein-friesian - crossbreds - meat animals - netherlands
    Check title to add to marked list

    Show 20 50 100 records per page

     
    Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.