ArticleVeterinary world2021
Analysis of culling reasons during the breeding cycle and lifetime performance: The strategy to remove crossbred Landrace and Large White sows under tropical climate.
Article in Veterinary world, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Influence of Chlamydia suis on reproductive outcome in farms with and without tetracycline treatment of sows.Veterinary research · 2026Article
- Pregnant Pigs at Slaughter-An Overview of Legal and Ethical Frameworks, Reasons, Occurrence, and Fetal Age Determination.Animals : an open access journal from MDPI · 2026Review
- Reproductive efficiency and longevity of gilts and sows in group housing and free-farrowing systems versus traditional crate systems in tropical environments.BMC veterinary research · 2026Article
- Reproductive Failure in Smallholder Pig Farms in East and Southeast Asia: A Systematic Review.Animals : an open access journal from MDPI · 2025Review
- Characterization of Removal Reasons for Nurse Sows and the Associated Removal Due to Their Extended Lactation Length in Hyperprolific Farrow-Wean Herds.Animals : an open access journal from MDPI · 2024Article
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Authors and funding
5 authors.
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Abstract
BACKGROUND AND
aimSow culling is an important practice in commercial swine production because it is directly associated with the economic efficiency of the breeding herd. This study was conducted to analyze the reasons for sow culling and quantify the factors affecting culling in crossbred Landrace and Large White sows under tropical climate. MATERIALS AND
methodsA total of 4887 culled sows from one parent stock farm located in Ratchaburi province, Western Thailand, were examined in this study. Culling reasons were grouped into the following eight categories according to farm management: (1) Reproductive disorders, (2) old age, (3) low performance, (4) diseases, (5) lameness, (6) udder problems, (7) body condition, and (8) other illnesses. Logistic regression analysis was used to explore the relationship between culling sows and environmental factors. Effects of parity and season of culling were considered as fixed effects in a statistical model.
resultsDescriptive statistics indicated the following factors accounting for sow removals: Old age (34.93%, n=1707), reproductive disorders (29.32%, n=1433), low performance (12.62%, n=617), lameness (12.56%, n=614), diseases (4.8%, n=235), body condition (4.68%, n=229), udder problems (0.79%, n=39), and other illnesses (0.26%, n=13). Parity and season of culling were also found to have a significant effect on sow culling (p<0.05). The majority of culling sows in this population were of old age and high parity.
conclusionThis study indicated that the purposeful culling of sows on this farm was within the targeted range. However, the incidence of reproductive disorders was too high and required further investigations.
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