Variation in fattening pig exterior, gait and weight gain in commercial organic herds
Pigs in Swedish organic production systems have been shown to have more findings of arthritis at slaughter, compared to pigs in conventional pig production. With this in mind a study was performed, to primary, investigate variation in exterior, gait and weight gain between sire breeds and, secondly,...
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| Formato: | H2 |
| Lenguaje: | Inglés sueco |
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SLU/Dept. of Animal Breeding and Genetics (until 231231)
2013
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| Materias: |
| _version_ | 1855570805143896064 |
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| author | Eliasson, Christina |
| author_browse | Eliasson, Christina |
| author_facet | Eliasson, Christina |
| author_sort | Eliasson, Christina |
| collection | Epsilon Archive for Student Projects |
| description | Pigs in Swedish organic production systems have been shown to have more findings of arthritis at slaughter, compared to pigs in conventional pig production. With this in mind a study was performed, to primary, investigate variation in exterior, gait and weight gain between sire breeds and, secondly, to investigate variation between herds, season, gender, age and assessment occasion on these recordings. Swedish commercial hybrids, crosses between Norwegian Landrace and Swedish Yorkshire were inseminated with either Hampshire or Duroc as terminal sire. All the pigs had known pedigree as each semen dose contained sperms from one individual boar. All piglets were individually tagged closely after birth, and exterior and gait assessment were performed at two separate occasions, early and late during the fattening period. At the assessment, exterior and gait parameters (lameness, back, leg, swollen joints and movement) were investigated. Data was collected and analyzed using SAS software, using three different statistical models. For the first two settings the results show that sire breed had little effect, while herd, gender, season, age and assessment occasion has some effect on the exterior and gait parameters. For the third setting the result showed that all the parameters; sire breed, birth herd, gender and season had some effect on weight and growth performance.
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| format | H2 |
| id | RepoSLU5204 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés swe |
| publishDate | 2013 |
| publishDateSort | 2013 |
| publisher | SLU/Dept. of Animal Breeding and Genetics (until 231231) |
| publisherStr | SLU/Dept. of Animal Breeding and Genetics (until 231231) |
| record_format | eprints |
| spelling | RepoSLU52042013-01-18T14:54:35Z Variation in fattening pig exterior, gait and weight gain in commercial organic herds Variationer i benhälsa och tillväxt i kommersiella ekologiska gårdar Eliasson, Christina organic pig exterior gait weigh gain sire breed Pigs in Swedish organic production systems have been shown to have more findings of arthritis at slaughter, compared to pigs in conventional pig production. With this in mind a study was performed, to primary, investigate variation in exterior, gait and weight gain between sire breeds and, secondly, to investigate variation between herds, season, gender, age and assessment occasion on these recordings. Swedish commercial hybrids, crosses between Norwegian Landrace and Swedish Yorkshire were inseminated with either Hampshire or Duroc as terminal sire. All the pigs had known pedigree as each semen dose contained sperms from one individual boar. All piglets were individually tagged closely after birth, and exterior and gait assessment were performed at two separate occasions, early and late during the fattening period. At the assessment, exterior and gait parameters (lameness, back, leg, swollen joints and movement) were investigated. Data was collected and analyzed using SAS software, using three different statistical models. For the first two settings the results show that sire breed had little effect, while herd, gender, season, age and assessment occasion has some effect on the exterior and gait parameters. For the third setting the result showed that all the parameters; sire breed, birth herd, gender and season had some effect on weight and growth performance. Grisar i ekologisk grisproduktion i Sverige har på senare tid fått en högre andel slaktanmärkningar angående ledproblem, jämfört med grisar från konventionell grisproduktion. Med detta i åtanke utfördes en studie med syftet att undersöka variationer i benhälsa och tillväxt mellan olika faderraser, samt undersöka variation mellan besättning, säsong, kön, ålder och bedömningstillfälle. Svenska kommersiella sugghybrider, Lantras- och Yorkshire korsningar, seminerades med antingen Hampshire- eller Duroc-galt. Alla suggor och galtar hade känd härstamning och varje semindos innehöll sperma från en individuell galt. Alla smågrisar öronmärktes strax efter födsel och exteriörbedömningar utfördes vid två tillfällen, tidigt och sent under slaktgrisens tillväxtperiod. Vid exteriörbedömningarna bedömdes 5 olika parametrar; hälta, rygg, benställning, svullna leder och rörelser. Data samlades in och analyserades statistiskt med SAS-programmet, i tre olika analyser. Resultaten från de två första analyserna visade att faderras hade liten effekt, medan besättning, kön, säsong, ålder och bedömningstillfälle hade viss effekt på exteriör parametrarna. I den tredje analysen visades att vikt och tillväxt påverkades av alla undersökta parametrar; faderras, smågrisbesättning, kön och säsong. SLU/Dept. of Animal Breeding and Genetics (until 231231) 2013 H2 eng swe https://stud.epsilon.slu.se/5204/ |
| spellingShingle | organic pig exterior gait weigh gain sire breed Eliasson, Christina Variation in fattening pig exterior, gait and weight gain in commercial organic herds |
| title | Variation in fattening pig exterior, gait and weight gain in commercial organic herds |
| title_full | Variation in fattening pig exterior, gait and weight gain in commercial organic herds |
| title_fullStr | Variation in fattening pig exterior, gait and weight gain in commercial organic herds |
| title_full_unstemmed | Variation in fattening pig exterior, gait and weight gain in commercial organic herds |
| title_short | Variation in fattening pig exterior, gait and weight gain in commercial organic herds |
| title_sort | variation in fattening pig exterior, gait and weight gain in commercial organic herds |
| topic | organic pig exterior gait weigh gain sire breed |