Calving ease and stillbirth in dairy herds using beef and dairy breed bulls
The aim of this study was to evaluate the effect of different sire breeds on calving traits when used in dairy herds. Records from 1,423,851 calvings from 1990-2016 were collected from the Swedish milk recording scheme from Swedish Holstein, Red dairy cattle, Hereford, Charolais, Aberdeen Angus,...
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| Formato: | H2 |
| Lenguaje: | Inglés sueco |
| Publicado: |
SLU/Dept. of Animal Breeding and Genetics (until 231231)
2017
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| Materias: |
| _version_ | 1855571692820103168 |
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| author | Gullstrand, Patricia |
| author_browse | Gullstrand, Patricia |
| author_facet | Gullstrand, Patricia |
| author_sort | Gullstrand, Patricia |
| collection | Epsilon Archive for Student Projects |
| description | The aim of this study was to evaluate the effect of different sire breeds on calving traits when
used in dairy herds. Records from 1,423,851 calvings from 1990-2016 were collected from
the Swedish milk recording scheme from Swedish Holstein, Red dairy cattle, Hereford,
Charolais, Aberdeen Angus, Limousin and Simmental sires mated with Swedish Holstein,
Red dairy cattle or crossbred dams. Calving ease was defined in two categories, easy or
difficult calving. Stillbirth was defined as dead at calving or within 24 hours of birth. The data
were analyzed for both traits for first and later parities separately.
The frequencies of difficulties at calving in first parity ranged from 3.2% to 7.6%. The highest
frequencies were found for Charolais and Simmental sires, and the lowest for Aberdeen
Angus and Red dairy cattle sires. The incidence of stillbirth ranged from 1.4% to 5.0% in first
parity, where Swedish Holstein sires gave the highest incidence of stillbirth and Hereford and
Aberdeen Angus the lowest. The frequency of difficulties at calving and the incidence of
stillbirths were in general lower in later parities compared to first parity.
Swedish Holstein and Red dairy cattle sires gave significantly less difficulties at calving
compared to Charolais, Hereford, Limousin and Simmental sires in first parity, but were not
significantly different from Hereford sires in later parities. Aberdeen Angus sires were
performing significantly better than all other beef breeds in first parity, but were not
significantly different from Hereford sires in later parities. Charolais gave significantly more
difficulties at calving than all sire breeds, except for Simmental in first parity. Swedish
Holstein sires gave significantly higher incidences of stillbirth than Aberdeen Angus,
Hereford, Limousin and Simmental sires in first parity. All beef breeds gave significantly
lower incidence of stillbirth than sires in both dairy breeds in later parities. There was no
significant difference in the incidence of stillbirth between beef breeds in later parities. There
was some re-ranking of beef sire breeds depending on which breeding values (based on
records from purebred beef herds or from beef-dairy crosses) had been used. |
| format | H2 |
| id | RepoSLU10451 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés swe |
| publishDate | 2017 |
| publishDateSort | 2017 |
| publisher | SLU/Dept. of Animal Breeding and Genetics (until 231231) |
| publisherStr | SLU/Dept. of Animal Breeding and Genetics (until 231231) |
| record_format | eprints |
| spelling | RepoSLU104512017-07-12T11:47:44Z Calving ease and stillbirth in dairy herds using beef and dairy breed bulls Kalvningssvårigheter och dödfödslar vid inseminering med köttras- och mjölkrastjurar i mjölkbesättningar Gullstrand, Patricia crossbreeding dairy beef calving ease stillbirth The aim of this study was to evaluate the effect of different sire breeds on calving traits when used in dairy herds. Records from 1,423,851 calvings from 1990-2016 were collected from the Swedish milk recording scheme from Swedish Holstein, Red dairy cattle, Hereford, Charolais, Aberdeen Angus, Limousin and Simmental sires mated with Swedish Holstein, Red dairy cattle or crossbred dams. Calving ease was defined in two categories, easy or difficult calving. Stillbirth was defined as dead at calving or within 24 hours of birth. The data were analyzed for both traits for first and later parities separately. The frequencies of difficulties at calving in first parity ranged from 3.2% to 7.6%. The highest frequencies were found for Charolais and Simmental sires, and the lowest for Aberdeen Angus and Red dairy cattle sires. The incidence of stillbirth ranged from 1.4% to 5.0% in first parity, where Swedish Holstein sires gave the highest incidence of stillbirth and Hereford and Aberdeen Angus the lowest. The frequency of difficulties at calving and the incidence of stillbirths were in general lower in later parities compared to first parity. Swedish Holstein and Red dairy cattle sires gave significantly less difficulties at calving compared to Charolais, Hereford, Limousin and Simmental sires in first parity, but were not significantly different from Hereford sires in later parities. Aberdeen Angus sires were performing significantly better than all other beef breeds in first parity, but were not significantly different from Hereford sires in later parities. Charolais gave significantly more difficulties at calving than all sire breeds, except for Simmental in first parity. Swedish Holstein sires gave significantly higher incidences of stillbirth than Aberdeen Angus, Hereford, Limousin and Simmental sires in first parity. All beef breeds gave significantly lower incidence of stillbirth than sires in both dairy breeds in later parities. There was no significant difference in the incidence of stillbirth between beef breeds in later parities. There was some re-ranking of beef sire breeds depending on which breeding values (based on records from purebred beef herds or from beef-dairy crosses) had been used. Syftet med denna studie var att utvärdera effekten av olika faderraser på kalvningsegenskaper när de använts i mjölkbesättningar. Information från 1 423 851 kalvningar från 1990-2016 samlades in från den svenska kokontrollen. Kalvarna var från renrasiga Svenska Holstein-, Nordiska röda-, Hereford-, Charolais-, Aberdeen Angus-, Limousin- och Simmentaltjurar parade med Svenska Holstein-, Nordiska röda- eller blandraskor. Kalvningsförloppet klassificerades i två kategorier, lätt eller svår kalvning. Kalven räknades som dödfödd om den var död vid kalvning eller inom 24 timmar efter kalvning. Datamaterialet analyserades separat för första och senare kalvning för båda kalvningsegenskaperna. Andelen kalvningssvårigheter vid första kalvningen varierade mellan 3.2 % och 7.6 %. Charolais- och Simmentaltjurar gav högst frekvens av svåra kalvningar. Aberdeen Angus- och Nordiska röda tjurar hade de lägsta frekvenserna av svåra kalvningar. Andelen dödfödslar varierade från 1.4 % till 5.0 % vid första kalvning. Tjurar av Svensk Holstein gav den högsta frekvensen av dödfödslar vid första kalvning, och Hereford- och Aberdeen Angustjurar de lägsta. Frekvenserna av kalvningssvårighet och dödfödslar var generellt sett lägre vid senare kalvningar jämfört med första kalvning. Svenska Holstein- och Nordiska röda tjurar gav signifikant färre kalvningssvårigheter jämfört med Charolais-, Hereford-, Limousin-, och Simmentaltjurar vid första kalvning, men var inte signifikant skilda från Herefordtjurar vid senare kalvning. Angustjurar var signifikant överlägsna de andra köttraserna vid första kalvning, men det fanns ingen signifikant skillnad med Herefordtjurar vid senare kalvningar. Charolaistjurar gav signifikant svårare kalvningar än alla andra raser förutom för Simmentaltjurar vid första kalvning. Svenska Holsteintjurar gav signifikant fler dödfödslar än Angus-, Hereford-, Limousin- och Simmentaltjurar vid första kalvning. Alla köttraser hade signifikant lägre frekvenser av dödfödslar än mjölkrastjurar för senare kalvningar. Det fanns ingen signifikant skillnad för dödfödslar mellan köttraserna för senare kalvningar. Resultaten för köttraserna varierade något beroende på vilka avelsvärden (baserade på registrering från renrasiga köttrasbesättningar eller från kött- och mjölkraskorsningar) som hade använts. SLU/Dept. of Animal Breeding and Genetics (until 231231) 2017 H2 eng swe https://stud.epsilon.slu.se/10451/ |
| spellingShingle | crossbreeding dairy beef calving ease stillbirth Gullstrand, Patricia Calving ease and stillbirth in dairy herds using beef and dairy breed bulls |
| title | Calving ease and stillbirth in dairy
herds using beef and dairy breed bulls |
| title_full | Calving ease and stillbirth in dairy
herds using beef and dairy breed bulls |
| title_fullStr | Calving ease and stillbirth in dairy
herds using beef and dairy breed bulls |
| title_full_unstemmed | Calving ease and stillbirth in dairy
herds using beef and dairy breed bulls |
| title_short | Calving ease and stillbirth in dairy
herds using beef and dairy breed bulls |
| title_sort | calving ease and stillbirth in dairy
herds using beef and dairy breed bulls |
| topic | crossbreeding dairy beef calving ease stillbirth |