Undesired Phenotypic and Genetic Trend for Stillbirth in Danish Holsteins

The primary aim of this study was to evaluate the phenotypic and genetic trends for stillbirth in Danish Holsteins. Trends of calving difficulty and calf size were also evaluated. The second aim was to compare predicted transmitting abilities (PTA) of sires for stillbirth using a linear and a thresh...

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Veröffentlicht in:Journal of dairy science 2004-05, Vol.87 (5), p.1477-1486
Hauptverfasser: Hansen, M., Misztal, I., Lund, M.S., Pedersen, J., Christensen, L.G.
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container_end_page 1486
container_issue 5
container_start_page 1477
container_title Journal of dairy science
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creator Hansen, M.
Misztal, I.
Lund, M.S.
Pedersen, J.
Christensen, L.G.
description The primary aim of this study was to evaluate the phenotypic and genetic trends for stillbirth in Danish Holsteins. Trends of calving difficulty and calf size were also evaluated. The second aim was to compare predicted transmitting abilities (PTA) of sires for stillbirth using a linear and a threshold model. Direct and maternal genetic effects were modeled by fitting correlated additive genetic effects of the sire and the maternal grandsire (MGS). For both the calf and the dam, covariates of breed proportions of Holstein-Friesian (HF) and the heterozygosity between HF and the original Danish Black and White (ODBW) were included. Records from 1.8million first-calving Danish Holstein cows calving from 1985 to 2002 were used. In this period, the overall frequency of stillbirth increased from 0.071 to 0.090. An unfavorable genetic trend of stillbirth was found for both the direct and maternal effect. The background for the genetic trends was an intense use of HF sires as sires of sons, which increased the proportion of HF genes to 94% in the Danish Holstein calves born in 2002. The effect of the imported HF genes was higher direct effects of calf size, calving difficulty, and stillbirth compared with the ODBW genes. The maternal effect of stillbirth was poorer for HF than for ODBW even though HF had a better maternal calving performance than ODBW. The threshold and the linear models showed almost similar predictions of transmitting abilities of sires.
doi_str_mv 10.3168/jds.S0022-0302(04)73299-3
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Trends of calving difficulty and calf size were also evaluated. The second aim was to compare predicted transmitting abilities (PTA) of sires for stillbirth using a linear and a threshold model. Direct and maternal genetic effects were modeled by fitting correlated additive genetic effects of the sire and the maternal grandsire (MGS). For both the calf and the dam, covariates of breed proportions of Holstein-Friesian (HF) and the heterozygosity between HF and the original Danish Black and White (ODBW) were included. Records from 1.8million first-calving Danish Holstein cows calving from 1985 to 2002 were used. In this period, the overall frequency of stillbirth increased from 0.071 to 0.090. An unfavorable genetic trend of stillbirth was found for both the direct and maternal effect. The background for the genetic trends was an intense use of HF sires as sires of sons, which increased the proportion of HF genes to 94% in the Danish Holstein calves born in 2002. The effect of the imported HF genes was higher direct effects of calf size, calving difficulty, and stillbirth compared with the ODBW genes. The maternal effect of stillbirth was poorer for HF than for ODBW even though HF had a better maternal calving performance than ODBW. 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Psychology ; genetic disorders ; genetic trend ; Genotype ; heterosis ; heterozygosity ; Holstein ; Hybrid Vigor - genetics ; introgression ; Linear Models ; maternal effect ; mathematical models ; Milk and cheese industries. 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Trends of calving difficulty and calf size were also evaluated. The second aim was to compare predicted transmitting abilities (PTA) of sires for stillbirth using a linear and a threshold model. Direct and maternal genetic effects were modeled by fitting correlated additive genetic effects of the sire and the maternal grandsire (MGS). For both the calf and the dam, covariates of breed proportions of Holstein-Friesian (HF) and the heterozygosity between HF and the original Danish Black and White (ODBW) were included. Records from 1.8million first-calving Danish Holstein cows calving from 1985 to 2002 were used. In this period, the overall frequency of stillbirth increased from 0.071 to 0.090. An unfavorable genetic trend of stillbirth was found for both the direct and maternal effect. The background for the genetic trends was an intense use of HF sires as sires of sons, which increased the proportion of HF genes to 94% in the Danish Holstein calves born in 2002. The effect of the imported HF genes was higher direct effects of calf size, calving difficulty, and stillbirth compared with the ODBW genes. The maternal effect of stillbirth was poorer for HF than for ODBW even though HF had a better maternal calving performance than ODBW. The threshold and the linear models showed almost similar predictions of transmitting abilities of sires.</description><subject>Animal productions</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Birth Weight</subject><subject>Breeding</subject><subject>breeding value</subject><subject>calf size</subject><subject>calves</subject><subject>calving</subject><subject>calving ease</subject><subject>Cattle</subject><subject>Cattle Diseases - genetics</subject><subject>complex vertebral malformation</subject><subject>dairy cows</subject><subject>Danish Black and White</subject><subject>Dystocia - genetics</subject><subject>Dystocia - veterinary</subject><subject>ease of birth</subject><subject>Female</subject><subject>fetal death</subject><subject>Food industries</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>genetic disorders</topic><topic>genetic trend</topic><topic>Genotype</topic><topic>heterosis</topic><topic>heterozygosity</topic><topic>Holstein</topic><topic>Hybrid Vigor - genetics</topic><topic>introgression</topic><topic>Linear Models</topic><topic>maternal effect</topic><topic>mathematical models</topic><topic>Milk and cheese industries. Ice creams</topic><topic>Phenotype</topic><topic>phenotypic correlation</topic><topic>Pregnancy</topic><topic>Pregnancy Outcome - genetics</topic><topic>Pregnancy Outcome - veterinary</topic><topic>stillbirth</topic><topic>Terrestrial animal productions</topic><topic>threshold models</topic><topic>Vertebrates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hansen, M.</creatorcontrib><creatorcontrib>Misztal, I.</creatorcontrib><creatorcontrib>Lund, M.S.</creatorcontrib><creatorcontrib>Pedersen, J.</creatorcontrib><creatorcontrib>Christensen, L.G.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Agricultural Science Collection</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural &amp; Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>ProQuest Engineering Collection</collection><collection>Agricultural Science Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Engineering Database</collection><collection>Environmental Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>SIRS Editorial</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of dairy science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hansen, M.</au><au>Misztal, I.</au><au>Lund, M.S.</au><au>Pedersen, J.</au><au>Christensen, L.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Undesired Phenotypic and Genetic Trend for Stillbirth in Danish Holsteins</atitle><jtitle>Journal of dairy science</jtitle><addtitle>J Dairy Sci</addtitle><date>2004-05-01</date><risdate>2004</risdate><volume>87</volume><issue>5</issue><spage>1477</spage><epage>1486</epage><pages>1477-1486</pages><issn>0022-0302</issn><eissn>1525-3198</eissn><coden>JDSCAE</coden><abstract>The primary aim of this study was to evaluate the phenotypic and genetic trends for stillbirth in Danish Holsteins. Trends of calving difficulty and calf size were also evaluated. The second aim was to compare predicted transmitting abilities (PTA) of sires for stillbirth using a linear and a threshold model. Direct and maternal genetic effects were modeled by fitting correlated additive genetic effects of the sire and the maternal grandsire (MGS). For both the calf and the dam, covariates of breed proportions of Holstein-Friesian (HF) and the heterozygosity between HF and the original Danish Black and White (ODBW) were included. Records from 1.8million first-calving Danish Holstein cows calving from 1985 to 2002 were used. In this period, the overall frequency of stillbirth increased from 0.071 to 0.090. An unfavorable genetic trend of stillbirth was found for both the direct and maternal effect. The background for the genetic trends was an intense use of HF sires as sires of sons, which increased the proportion of HF genes to 94% in the Danish Holstein calves born in 2002. The effect of the imported HF genes was higher direct effects of calf size, calving difficulty, and stillbirth compared with the ODBW genes. The maternal effect of stillbirth was poorer for HF than for ODBW even though HF had a better maternal calving performance than ODBW. The threshold and the linear models showed almost similar predictions of transmitting abilities of sires.</abstract><cop>Savoy, IL</cop><pub>Elsevier Inc</pub><pmid>15290997</pmid><doi>10.3168/jds.S0022-0302(04)73299-3</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; ScienceDirect Journals (5 years ago - present)
subjects Animal productions
Animals
Biological and medical sciences
Birth Weight
Breeding
breeding value
calf size
calves
calving
calving ease
Cattle
Cattle Diseases - genetics
complex vertebral malformation
dairy cows
Danish Black and White
Dystocia - genetics
Dystocia - veterinary
ease of birth
Female
fetal death
Food industries
Fundamental and applied biological sciences. Psychology
genetic disorders
genetic trend
Genotype
heterosis
heterozygosity
Holstein
Hybrid Vigor - genetics
introgression
Linear Models
maternal effect
mathematical models
Milk and cheese industries. Ice creams
Phenotype
phenotypic correlation
Pregnancy
Pregnancy Outcome - genetics
Pregnancy Outcome - veterinary
stillbirth
Terrestrial animal productions
threshold models
Vertebrates
title Undesired Phenotypic and Genetic Trend for Stillbirth in Danish Holsteins
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