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Registros recuperados: 41
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Breeding Goals for Organic Dairy Farming in Denmark Based on the Principles of Organic Agriculture Organic Eprints
Slagboom, Margot; Wallenbeck, Anna; Rydhmer, Lotta; Thomasen, Jørn Rind; Kargo, Morten.
Organic dairy farming (ODF) is different from conventional dairy farming in management practices, but so far the same breeding goal (BG) is used, based on the same economic models (EM). However, ODF is based on the principles of organic agriculture defined by the IFOAM, which are not easily interpreted in economic terms and it may be uestionable to use a BG for ODF based on EM. In this study we set up three BGs for ODF in Denmark, one based on the principles of organic agriculture, one focusing on roughage consumption and feed efficiency, and one focusing on disease resistance. A questionnaire and desired gains index were used to set up the BGs. Correlations between these BGs and BGs based on EM were low. Which BG would be best suitable to use for ODF in...
Tipo: Conference paper, poster, etc. Palavras-chave: Production systems; Dairy cattle; Breeding and genetics.
Ano: 2018 URL: http://orgprints.org/33256/1/Slagboom%20et%20al%20WCGALP%202018.pdf
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Breeding Goals for Organic Dairy Farming in Denmark Based on the Principles of Organic Agriculture Organic Eprints
Slagboom, Margot; Wallenbeck, Anna; Rydhmer, Lotta; Thomasen, Jørn Rind; Kargo, Morten.
Organic dairy farming (ODF) is different from conventional dairy farming in management practices, but so far the same breeding goal (BG) is used, based on the same economic models (EM). However, ODF is based on the principles of organic agriculture defined by the IFOAM, which are not easily interpreted in economic terms and it may be questionable to use a BG for ODF based on EM. In this study we set up three BGs for ODF in Denmark, one based on the principles of organic agriculture, one focusing on roughage consumption and feed efficiency, and one focusing on disease resistance. A questionnaire and desired gains index were used to set up the BGs. Correlations between these BGs and BGs based on EM were low. Which BG would be best suitable to use for ODF in...
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle; Breeding and genetics.
Ano: 2018 URL: http://orgprints.org/33030/1/Slagboom_2018_BreedingGoalsForOrganicDairyFarming.pdf
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Breeding goals for organic dairy farming in Denmark based on the principles of organic agriculture Organic Eprints
Slagboom, Margot; Wallenbeck, Anna; Rydhmer, Lotta; Thomasen, Jørn Rind; Kargo, Morten.
The aim of the project was to set up and compare three breeding goals for organic dairy farming that focused on 1) Principles of organic agriculture, 2) Disease resistance, and 3) Feed efficiency and roughage consumption.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle; Breeding and genetics.
Ano: 2018 URL: http://orgprints.org/33031/1/Slagboom_2018_BreedingGoalsForOrganicDairyFarmingPresentation.pdf
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COMPARISON OF GROWTH PERFORMANCE OF BEEF CALVES FROM DIFFERENT GENETIC STRAINS REARED UNDER ORGANIC CONDITIONs (D. 3.2) Organic Eprints
Cakmakci, Cihan; Jørgensen, Kirstine F.; Kristensen, Troels; Kargo, Morten; Vestergaard, Mogens.
The objective of the present study was to compare growth performance of 15 Danish Holstein bull (DHB) calves, 15 Limousine x Danish Holstein crossbred bull (CB) calves and 15 Limousine x Danish Holstein crossbred heifer (CH) calves reared under organic conditions. Spring-born calves were puchased at private farms and arrived at approximately 20 days of age with an average initial body weight of 52.9, 58.5 and 56.1 kg, (SEM 2.6) for DHB, CB and CH, respectively. Calves were kept indoor until weaning at 3 months of age. Calves were gradually introduced to a grass-silage based ration from 3 to 4 months of age. From 4 to 7 months calves were kept on mix grass pasture of ryegrass and white clover. There were significant differences between treatment groups in...
Tipo: Working paper Palavras-chave: Beef cattle.
Ano: 2013 URL: http://orgprints.org/24695/3/24695.pdf
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Definition of breeding goals for dairy breeds in organic production systems Organic Eprints
Hjortø, Line; Sørensen, Anders Christian; Thomasen, Jørn Rind; Munk, Arne; Berg, Peer; Kargo, Morten.
In this study, we attempt to assess the Danish organic dairy farmers' acceptance of the economic values derived from a stochastic, bio-economic model. We expect the results to show that farmers give increased priority to some traits above the objectively derived economic vaule.
Tipo: Conference paper, poster, etc. Palavras-chave: Breeding and genetics.
Ano: 2015 URL: http://orgprints.org/30099/1/Hjorto_2015_BreedingGoal.pdf
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Detailed milk fatty acid profiling of the Danish dairy cattle population Organic Eprints
Hein, Lisa; Buitenhuis, Albert Johannes; Gregersen, Sandra Beyer; Larsen, Lotte Bach; Demirovic, Dino; Warnecke, Solveig; Nielsen, Niels Henning; Munk, Arne; Sørensen, Lars Peter; Pedersen, Jørn; Kargo, Morten.
The fatty acid (FA) composition of bovine milk may be related to human health and technological properties of dairy products. The FA composition can be altered both through management and breeding. Large scale FA profiling of the Danish dairy cattle population has now been implemented for more than a year. For the first time access to millions of FA observations across an entire dairy population enables in depth analysis of the factors affecting the FA profile of milk. This was the aim of this study. For 12 months more than 3.5 million milk samples from four Danish dairy breeds had been analyzed using mid infrared spectroscopy and application of FOSS Application Note 64 for predicting content of seven FA groups and four individual FA. The results showed...
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle Food security; Food quality and human health Breeding and genetics.
Ano: 2016 URL: http://orgprints.org/30988/1/Hein_2016_MilkFattyAcidPresentation.pdf
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Detailed milk fatty acid profiling of the Danish dairy cattle population Organic Eprints
Poulsen, Nina Aagaard; Hein, Lisa; Gregersen, Sandra Beyer; Sørensen, Lars Peter; Larsen, L.B.; Kargo, Morten; Buitenhuis, Albert Johannes.
Abstract Milk fatty acid (FA) composition can be manipulated through feeding, and especially effects of grazing have been shown to promote a healthier milk FA profile due to increasing contents of beneficial FAs, like conjugated linoleic acid (CLA) and α-linolenic acid (C18:3, the main n3 FA in milk). In addition to diet-based manipulations, selective breeding for specific FA could also be a strategy for altering the FA profile as milk FA display low to moderate heritabilites (0.07-0.34 in Danish Holstein). Since 2015, milk samples from all Danish dairy cows under yield control have been analyzed using mid infrared spectroscopy. The FOSS Application Note 64 has subsequently been used to predict content of seven FA groups (short-chain FA (SCFA),...
Tipo: Conference paper, poster, etc. Palavras-chave: Breeding and genetics; Health and welfare.
Ano: 2017 URL: http://orgprints.org/32173/1/Poulsen%20et%20al%20SobCows%20poster_2.pdf
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Er der behov for nye avlsmål for økologiske malkekøer? Organic Eprints
Kargo, Morten.
Hovedbudskaberne i præsentationen er: 1) at der er forskel mellem økologiske og konventionelle kvægbrugers ønsker, 2) at de økologiske kvægbrugere kan inddeles i grupper, således at kvægbrugerne inden for hver gruppe har den samme avlsprofil og 3) at det er vigtigt at kende de langsigtede konsekvenser af et økologisk avlsmål.
Tipo: Conference paper, poster, etc. Palavras-chave: Breeding and genetics.
Ano: 2015 URL: http://orgprints.org/30134/1/Kargo_2015_AvlsmaalOkologikongres.pdf
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Fedtsyremålinger på enkeltkøer – potentiale og perspektiver Organic Eprints
Kargo, Morten.
Arbejdet er udført i SOBcows – Specialiserede økologiske avlsmål og avlsplaner indenfor malkekvæg
Tipo: Conference paper, poster, etc. Palavras-chave: Breeding and genetics.
Ano: 2017 URL: http://orgprints.org/31276/1/Kargo_Morten_56-Muligheder-idifferentierede%20m%C3%A6lkeprodukter_kv%C3%A6kongress_2017.pptx
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Fedtsyreprofilen i mælk fra malkekøer - potentiale og perspektiver Organic Eprints
Kargo, Morten; Buitenhuis, Albert Johannes; Munk, Arne.
Projektet SOBcows har i samarbejde med RYK gennem 16 måneder i 2015/16 analyseret for indholdet af fedtsyrer i kontrolmælken fra alle ydelseskontrollerede køer i Danmark. Rapporten præsenterer opgørelser på målingerne og evaluerer potentialet i at bruge viden om mælkens fedtsyreprofil i avl og produktion samt i forhold til fedtsyrernes betydning for human sundhed. En litteraturgennemgang viser, at fedtsyresammensætningen i komælk varierer betydeligt og er påvirket af en række faktorer relateret til fodring, race og management. Fodring med græs- eller urtebaserede rationer øger mælkens indhold af umættede C18-fedtsyrer, og tilsvarende øger fodring med mættet fedt indholdet af palmitin– og stearinsyre (C16:0 og C18:0) i mælkefedtet. Litteraturen viser...
Tipo: Report Palavras-chave: Breeding and genetics; Health and welfare.
Ano: 2016 URL: http://orgprints.org/31172/1/Kargo_Morten_%20DCArapport088.pdf
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Fedtsyreprofilen i mælk fra malkekøer – Potentiale og perspektiver Organic Eprints
Strudsholm, Finn; Gregersen, Sandra Beyer; Larsen, Lotte Bach; Poulsen, Nina Aagaard; Hein, Lisa; Sørensen, Lars Peter; Buitenhuis, Albert Johannes; Kargo, Morten; Munk, Arne.
Projektet SOBcows har i samarbejde med RYK gennem 16 måneder i 2015/16 analyseret for indholdet af 11 fedtsyrer/fedtsyregrupper i kontrolmælken fra alle ydelseskontrollerede køer i Danmark. Dataanalyser af godt 3,5 mio. mælkeprøver viser, at det er muligt at påvirke sammensætning af mælkefedtet gennem avl. En foreløbig beregning af arvbarheden hen over laktationen viser, at alle fedtsyrekategorier har en genetisk variation og enkeltfedtsyrerne har arvbarheder på højde med den samlede fedtydelse. Det betyder arvbarheder i intervallet 0,25-0,44 afhængig af race og paritet. De genetiske sammenhænge varierer betydeligt gennem laktationen og er påvirket af den øgede kropsmobilisering i de første måneder efter kælvning. En anvendelse af fedtstyrebestemmelserne i...
Tipo: Report Palavras-chave: Dairy cattle Food security; Food quality and human health Feeding and growth Breeding and genetics Health and welfare.
Ano: 2016 URL: http://orgprints.org/30986/1/Kargo_2016_MaelkensFedtsyreprofil.pdf
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Fedtsyreregistrering i Danmark Organic Eprints
Munk, Arne; Kargo, Morten.
Det er første gang i historien, der findes fedtsyreregistreringer på alle køer i et land. Informationer om fedtsyreindholdet i mælken er indsamlet fra samtlige ydelseskontrollerede køer i Danmark.
Tipo: Report chapter Palavras-chave: Breeding and genetics; Health and welfare.
Ano: 2016 URL: http://orgprints.org/31389/1/2016-12-05_7329_-_RYK_Registrerings-_og_Ydelseskontrollen_-_180_sider.pdf
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Fremtidens ko – sammenhæng imellem avlsmæssige ændringer og nye staldsystemer Organic Eprints
Thomasen, Jørn Rind; Kargo, Morten.
Hovedbudskaberne fra præsentationen er, at: 1) avl bør betragtes som én blandt mange faktorer i managementstyringen på en kvægbedrift, 2) avlsarbejdet bliver i højere grad målrettet specifikke produktionssystemer f.eks. økologisk versus konventionelt og 3) der er forskel mellem økologiske og konventionelle kvægbrugeres ønsker til vægtningen af egenskaberne i avlsmålet.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle; Breeding and genetics; Buildings and machinery.
Ano: 2015 URL: http://orgprints.org/30153/1/Thomasen_2015_AvlOgManagement.pdf
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Fremtidens Øko-ko – hvad kan og vil vi avle efter Organic Eprints
Kargo, Morten.
Præsentationens to budskaber er: 1) at danske og europæiske økologer nøje skal overveje mulighederne for at avle efter linjer tilpasset den økologiske produktion og 2) at definitionen af et specifikt økologisk avlsmål, intensiv registrering i økologiske besætninger samt brug af genomisk selektion kan gøre det muligt at fremavle en speciel økologisk ko.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle; Breeding and genetics.
Ano: 2017 URL: http://orgprints.org/33146/1/Kargo_2017_Fremtidens%C3%98koKo.pdf
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Gamle kvægracer på nyt græs Organic Eprints
Kargo, Morten.
Indslag fra TV SYD hvor kvier af de gamle racer Jysk Kvæg og Rød Dansk Malkerace flyttes til økologiske besætninger. Formålet med at flytte dyrene er at undersøge, om mælken fra de gamle racer adskiller sig fra mælken fra moderne malkekøer.
Tipo: Video Palavras-chave: Dairy cattle; Breeding and genetics.
Ano: 2015 URL: http://orgprints.org/30152/1/gamle-kv%C3%A6gracer-p%C3%A5-nyt-gr%C3%A6s_autoplay%3D1
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Genetic analysis of predicted fatty acid profiles of milk from Danish Holstein and Danish Jersey cattle populations Organic Eprints
Hein, Lisa; Sørensen, Lars Peter; Kargo, Morten; Buitenhuis, Albert Johannes.
The objective of this study was to assess the genetic variability of the detailed fatty acid (FA) profiles of Danish Holstein (DH) and Danish Jersey (DJ) cattle populations. We estimated genetic parameters for 11 FA or groups of FA in milk samples from the Danish milk control system between May 2015 and October 2016. Concentrations of different FA and FA groups in milk samples were measured by mid-infrared spectroscopy. Data used for parameter estimation were from 132,732 first-parity DH cows and 21,966 first-parity DJ cows. We found the highest heritabilities for test day measurements in both populations for short-chain FA (DH = 0.16; DJ = 0.16) and C16:0 (DH = 0.14; DJ = 0.16). In DH, the highest heritabilities were also found for saturated FA and...
Tipo: Journal paper Palavras-chave: Dairy cattle; Breeding and genetics.
Ano: 2018 URL: http://orgprints.org/33090/1/Hein_2018_GeneticAnalysisOfPredictedFattyAcidProfiles.pdf
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Herd characteristics influence farmers’ preferences for trait improvements in Danish Red and Danish Jersey cows Organic Eprints
Slagboom, Margot; Kargo, Morten; Edwards, David; Sørensen, Anders Christian; Thomasen, Jørn Rind; Hjortø, Line.
ABSTRACT The aim of this study was to characterize preferences of farmers for breeding goal traits with Danish Red (DR) or Danish Jersey (DJ) cows. A breed-specific survey was established to characterize farmers’ preferences for improvements in 10 traits, by means of pairwise rankings using the online software 1000Minds. These pairwise rankings were based on equal economic worth of trait improvements. The DR survey was filled in by 87 farmers and the DJ survey by 76 farmers. Both DR and DJ farmers gave the highest preference to improvements in mastitis, and the lowest to calving difficulty. By means of a cluster analysis, three distinct clusters of farmers were identified per breed. Comparisons of herd characteristics between clusters suggest that farmers...
Tipo: Journal paper Palavras-chave: Breeding and genetics.
Ano: 2017 URL: http://orgprints.org/31388/1/Slagboom%20et%20al.%3B%202017%3B%20Herd%20characteristics%20influence%20farmers%20preferences%20for%20trait%20improvements%20in%20Danish%20Red%20and%20Danish%20Jersey%20cows.pdf
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Heterogeneity in farmer preferences for breeding goal traits - effects of herd characteristics and production system Organic Eprints
Slagboom, Margot; Kargo, Morten; Hjortø, Line; Thomasen, Jørn Rind; Edwards, David.
The aim of this study is to quantify preferences of Danish dairy farmers for breeding goal traits and associations to herd characteristics and production system (organic versus conventional farming). The main conclusions are that: 1) heterogeneity exists within farmers’ preferences and clear groups of farmers are found for all breeds, 2) some herd characteristics can be linked to farmer groups, and 3) production system can be linked to farmer groups.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle; Breeding and genetics.
Ano: 2015 URL: http://orgprints.org/30154/1/Slagboom_2015_BreedingGoalSurvey.pdf
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Improving animal health and welfare in organic cattle milk production through breeding and management Organic Eprints
Sørensen, Jan Tind; Winckler, Christoph; Wallenbeck, Anna; Spengler, Anet; Knierim, Ute; Kargo, Morten; Walczak, Jacek; Ribikauskas, Vytautas.
Overall summary of main results, discussion and conclusions WP1 The aim in WP1 was to map the performance of local breeds compared to commercial dairy breeds on organic farms in Austria, Switzerland, Sweden, Poland and Germany with regard to health associated traits, fertility and production traits. In a study covering the whole population of the selected breeds, managed under organic conditions during the period 1.7.2011 to 30.6.2014, we found lower milk yields for local breeds. In general we found better fertility performance (less days open, shorter calving intervals, lower number of inseminations) for at least one of the local breeds involved in each country. We also detected lower proportions of milk records with somatic cell counts above 100.000...
Tipo: Report Palavras-chave: Dairy cattle; Health and welfare.
Ano: 2018 URL: http://orgprints.org/33357/1/COPlus_final_reporting%20150618.pdf
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Koens gener kan afgøre mælkens sundhed Organic Eprints
Kargo, Morten.
Stamtræet har i høj grad betydning for, hvilke kvaliteter koens mælk har, viser forskning fra Aarhus Universitet og SEGES. Det giver nye muligheder for at producere mælk med specifikke egenskaber.
Tipo: Newspaper or magazine article Palavras-chave: Breeding and genetics; Health and welfare.
Ano: 2017 URL: http://orgprints.org/31229/1/Kargo_Morten_2017_DCA%20nyhedsbrev_Koens%20gener%20kan%20afg%C3%B8re%20m%C3%A6lkens%20sundhed.pdf
Registros recuperados: 41
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