Research theme
Swine
Reproduction genetics under tropical heatSow longevity, litter size and piglet survival decide a pig farm's margins. The group's genetic analyses of Landrace, Yorkshire and Pietrain herds inform sow selection on commercial farms in the tropics.
Highlights
- Productive life and lifetime production of sows
- Predictive models for litter size
- Industry partnerships with commercial farms
Key numbers
- journal articles
- 20
- conference papers
- 39
- research projects
- 8
- graduate theses
- 9
- partner organizations
- 2
- years of published work
- 2003–2024
From the field
What the group asks
What keeps sows productive for longer?
Genetic parameters and trends for length of productive life and lifetime production efficiency, sow culling and non-productive sow days in Landrace, Yorkshire and crossbred sows.
How can litter size and piglet survival improve under heat?
Genetic parameters for piglet loss at birth and litter traits, predictive models for litter size, and the effect of daily temperature on reproductive failure and mummified piglets.
What controls the return to estrus after weaning?
Genetic and environmental factors for the weaning-to-first-service interval, heterosis, and estrogen receptor, adiponectin and FSH receptor gene polymorphisms.
Which growth and body traits matter for selection?
Backfat thickness and weight, IGF-II gene associations, leg conformation, and growth and carcass traits in Landrace and multibreed commercial populations.
Methods named in this theme's titles: Survival & longevity (16) · Genetic parameters & animal models (15) · Candidate genes & markers (8) · Crossbreeding & heterosis (4) · Multibreed evaluation (3) · Genotype × environment & climate (3) · Carcass & meat quality (1)
Journal papers (20)
- 2024
Assessing reproductive performance and predictive models for litter size in Landrace sows under tropical conditions
Praew Thiengpimol, Skorn Koonawootrittriron, Thanathip Suwanasopee
Animal Bioscience 37(8): 1333-1344
- 2023
Estimation of heritabilities and additive genetic correlations for reproduction traits in swine: insights for tropical commercial production systems using multiple trait animal models
Udomsak Noppibool, Thanathip Suwanasopee, Mauricio A. Elzo, Skorn Koonawootrittriron
Animal Bioscience 36(12): 1785-1795
- 2022
Genetic and phenotypic correlations between backfat thickness and weight at 28 weeks of age, and reproductive performance in primiparous Landrace sows raised under tropical conditions
Praew Thiengpimol, Skorn Koonawootrittriron, Thanathip Suwanasopee
Tropical Animal Health and Production 54: 43
- 2020
Genetic parameters for proportion of piglet loss at birth in a Landrace population
Praew Thiengpimol, Thanathip Suwanasopee, Skorn Koonawootrittriron
Agriculture and Natural Resources 54(5): 471-478
Co-authorSwine - 2017
Effect of daily fluctuations in ambient temperature on reproductive failure traits of Landrace and Yorkshire sows under Thai tropical environmental conditions
Teerapong Jaichansukkit, Thanathip Suwanasopee, Skorn Koonawootrittriron, Padet Tummaruk, Mauricio A. Elzo
Tropical Animal Health and Production 49: 503-508
Co-authorSwine - 2017
Genetic correlations between first parity and accumulated second to last parity reproduction traits as selection aids to improve sow lifetime productivity
Udomsak Noppibool, Mauricio A. Elzo, Skorn Koonawootrittriron, Thanathip Suwanasopee
Asian-Australasian Journal of Animal Science 30: 320-327
CorrespondingSwine - 2017
Genetic relationships between length of productive life and lifetime production efficiency in a commercial swine herd in Northern Thailand
Udomsak Noppibool, Skorn Koonawootrittriron, Mauricio A. Elzo, Thanathip Suwanasopee
Animal Science Journal 88: 213-221
- 2016
Estimation of genetic parameters and trends for length of productive life and lifetime production traits in a commercial Landrace and Yorkshire swine population in Northern Thailand
Udomsak Noppibool, Skorn Koonawootrittriron, Mauricio A. Elzo, Thanathip Suwanasopee
Asian-Australasian Journal of Animal Science 29: 1222-1228
Conference papers (39)
- 2021
Backfat thickness and its relation to production traits of Landrace sows raised in tropical conditions · The 2021 National RGJ and RRI Conferences
- 2019
Genetic variances and parameters for piglet loss at birth · The 21st National Genetic Conference 'Genetics for Sustainable Development'
- 2017
Genetic analysis of production traits in different parities using multiple trait animal models in a Thai Landrace-Yorkshire swine population · ASAS Annual Meeting
- 2016
Genetic parameters and trends for length of productive life and lifetime production efficiency traits in Thai Landrace and Yorkshire sows · ADSA-ASAS Joint Annual Meeting
- 2016
Association between number of piglets lost and total number of piglets born from commercial sows raised under an open-house system · Fifth National Animal Science Conference, Khon Kaen Agricultural Journal
- 2016
Association between parity proportion and piglet production in Landrace sows · Fifth National Animal Science Conference, Khon Kaen Agricultural Journal
- 2016
Sow culling in a commercial Landrace swine population in Northern Thailand · Fifth National Animal Science Conference, Khon Kaen Agricultural Journal
- 2015
Genetic parameters of lifetime characteristics of pre-weaning production traits of Landrace sows raised under tropical conditions · ADSA-ASAS Joint Annual Meeting
- 2015
Genetic parameters for length of productive life and lifetime production traits of purebred Landrace and Yorkshire sows in Northern Thailand · ADSA-ASAS Joint Annual Meeting
- 2015
Genetic selection tool for number born alive and stillbirth piglets in commercial Thai populations · ADSA-ASAS Joint Annual Meeting
Research projects (8)
- 2017Genetic effect of body size on backfat thickness and growth of commercial gilts raised under tropical conditionFunder: KURDICo-investigator
- 2012–2017Genetic analysis for length of productive life and lifetime production traits of sows raised under tropical conditionsFunder: TRFPrincipal investigator
- 2012Development of genetic marker as selection tool for pre-weaning production traits of sowsFunder: KURDICo-investigator
- 2009–2010Genetic parameters and effect of proportion of female piglet born alive on preweaning growth traits in a purebred Pietrain population in ThailandFunder: Samparn Co. Ltd.Principal investigator
- 2009Genetic analysis of weaning to estrus interval in commercial swine population raised in open house system under Thai tropical climateFunder: KURDICo-investigator
- 2008Association among growth performance, growth hormone and Lipoprotein concentration in blood of swine selecting for growth genetic improvement under tropical conditionFunder: KURDIPrincipal investigator
- 2007–2009Genetic analyses for weaning to first serviced interval in a commercial swine population raised under Thai environmental conditionFunder: RMUTPrincipal investigator
- 2007–2008Genetic correlation between age at first farrowing and litter traits of gilts in Pietrain and Large White raised under Thai environmental conditionFunder: Samparn Co. Ltd.Principal investigator
Graduate theses (9)
2017Ph.D.
Genetic analysis for length of productive life and lifetime production traits of sows raised under tropical conditions
Udomsak Noppibool
2017Ph.D.
Genetic analysis for pre-weaning sow production traits in commercial swine populations under tropical conditions
Teerapong Jaichansukkit
2017M.S.
Analysis for proportion of sow and production of landrace pigs raised in a commercial open-house system in Thailand
Namtip Jirattikanpan
2011Ph.D.
Genetic analysis for weaning to first service interval in a Thai Commercial Swine Population
Chatchai Chansomboon
2011M.S.
Genetic analysis for piglet loss of purebred landrace and yorkshire sows raised in a Thai commercial swine population
Praew Thiengpimol
2010M.S.
Association among growth performance, body size, and plasma lipoprotein of commercial swine in different breed groups
Chunyanuth Hoonwan
2010M.S.
Genetic parameters and effect of proportion of female piglet born alive on preweaning growth traits in a purebred pietrain population in Thailand
Taradon Punsanit
2008M.S.
Genetic correlation between age at first farrowing and litter traits of gilts in pietrain and large white raised under thai environmental condition
Pranithi Pholsing
2008M.S.
Effects of liquid DL-methionine hydroxy analog free acid on production performance, intestinal econology and intestinal morphology of nursery pigs
Chanwit Kaewtapee
Who the work is done with
4T Co., Ltd.
Thailand · 2014–2020
Adviser on swine genetics and production efficiency, Chiang Mai.
Guangxi University (opens in a new tab)
China
Adjunct professor (KUIAS profile); invited the TAGU team to the 2026 Leman China Swine Conference in Zhengzhou.
Partner on research, or study with TAGU
For partners
Propose a joint research project, a co-authored study, a student exchange or a talk.
Start a research conversationFor students
Study for a master's or Ph.D. in animal breeding and genetics at Kasetsart University.
How to join TAGU