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| Registros recuperados: 16 | |
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| Rangstrup-Christensen, Lena; Krogh, Mogens Agerbo; Pedersen, L.J.; Sørensen, Jan Tind. |
| In Danish organic pig production, one-third af total bom piglets die befare weaning, and stillbirth has previously crudely been estimated to account for 2 7% af the total preweaning mortality. The objective af this study was to evaluate season, litter size, parity and body condition af the sow as risk factors for stillbirth in nine commercial Danish organic pig herds. The study was conducted over a 1-year period, and the data included registrations an 5170 farrowings with 82 906 total bom piglets. The average number af total bom piglets per titter was 16. 0, and the number af stil/bom piglets per titter was 1.1. A significant effect af season was seen with an odds ratio for stillbirth af 1. 15 during summer (May to August) compared with the remaining part... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2016 |
URL: http://orgprints.org/33728/1/S1751731116002408 |
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| Thorsen, Cecilie Kobek; Schild, Sarah-Lina Aagaard; Rangstrup-Christensen, Lena; Bilde, Trine; Juul Pedersen, Lene. |
| Prolonged farrowing duration has previously been related to hypoxia, stillbirth and poor sow health post partum (pp). A difficult farrowing may affect sow behavior through exhaustion, sickness or pain and thus constitute a risk for sub-optimal maternal behavior. The aim of the present work was to study if the duration of farrowing in an organic sow herd affected sow postural changes, carefulness of lying down and nursing behavior relevant for early piglet mortality. Thirty-eight sows and their piglets housed in individual paddocks with an A-frame hut were video recorded from the day of farrowing and the following 72 h. The average farrowing duration till the last live born piglet was 7.5 ± 7 h (2.1–28.9 h). The only effect found of farrowing duration was a... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare; Pigs. |
| Ano: 2017 |
URL: http://orgprints.org/33924/1/Thorsen_etal_2017_L3.5..pdf |
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| Rangstrup-Christensen, Lena. |
| High piglet mortality is a considerable problem in Danish organic sow herds. The aim of this study was to determine causes of preweaning mortality and to identify risk factors for piglet mortality within the Danish organic pig production. A large-scale study was performed in nine commercial Danish organic sow herds during a one-year period. Data included recordings on piglet mortality in 6000 litters. Moreover, 3000 piglets were necropsied in order to determine the cause of death. The results indicates that it is possible to achieve a lower piglet mortality in the future and that the Danish organic pig production and a high piglet mortality is not inevitably synonymous. |
| Tipo: Thesis |
Palavras-chave: Health and welfare. |
| Ano: 2017 |
URL: http://orgprints.org/33727/1/Ph.d.afhandling_Lena_Rangstrup_Christensen_f.pdf |
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| Rangstrup-Christensen, Lena; Krogh, Mogens Agerbo; Pedersen, L.J.; Sørensen, Jan Tind. |
| Piglet mortality is a major problem in organic pig production affecting both farm economy and animal welfare. Knowledge is scarce on the risk factors of piglet mortality in Danish commercial organic pig production. The objectives of this study were to evaluate season, litter size, parity, sow body condition and stillborn littermates as risk factors for early piglet mortality and crushing of liveborn piglets from parturition until castration at day 3 to 5 postpartum (pp). The study was conducted over a 1-year period in nine commercial Danish organic pig herds practicing outdoor farrowing all year round. Data included recordings on 3393 farrowings with 50 284 liveborn piglets of which 14.8% died before castration. A subset of the dead piglets were collected... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2017 |
URL: http://orgprints.org/33729/1/S1751731117002178 |
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| Rangstrup-Christensen, Lena. |
| Relationer mellem søernes læg nr., huld og halthed og dødeligheden. Størrelsen af de obducerede grise. Er der diagnoser som er mere sandsynlige at se hos små grise modsat store grise? Har man større eller mindre chance for at overleve hvis man er født ind i et stort eller lille kuld? Er der større dødlighed hos grise som havde mange dødfødte kuldsøskende? Hvornår i fravænningsperioden dør der flest grise ved klemning? Har klemte grise andre diagnoser? Er det altid de små grise der bliver klemte? |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2015 |
URL: http://orgprints.org/28966/7/28966.pdf |
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| Rangstrup-Christensen, Lena; Schild, Sarah-Lina Aagaard; Pedersen, L.J.; Sørensen, Jan Tind. |
| The aims of the current study were to identify the causes of preweaning piglet mortality and investigate the effect of season and parity on the proportions of mortality causes. The study was conducted in nine herds over a one-year period, and dead piglets were collected for necropsy once during each of the four seasons. In total, 2672 piglets were necropsied of which 60% were live-born but died post-partum (pp), 32% were stillborn and 8% were euthanised. Intra-partum deaths accounted for 88% of stillborn piglets. Eighty-one percent of necropsied live-born piglets died within four days pp. Half of these had a body weight of <1 kg at the time of death. Crushed and starved piglets accounted for 83% and 9% of mortalities until day four pp, respectively.... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2018 |
URL: http://orgprints.org/33730/2/Levering%201.4_Causes%20of%20preweaning%20mort.pdf |
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| Registros recuperados: 16 | |
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