Papers by Theera Rukkwamsuk
HAL (Le Centre pour la Communication Scientifique Directe), Nov 18, 2013
ABSTRACT International organizations (OIE, FAO, WHO) have recognized that strengthening One Healt... more ABSTRACT International organizations (OIE, FAO, WHO) have recognized that strengthening One Health capacity in Southeast Asia (SEA) requires a range of in-service, academic and short course training programs for biologists, human and animal health care providers as well as related health disciplines. In 2014, a new international master program named “InterRisk: Assessment and management of health risks at the human, animal and ecosystem interface” will be opened in Thailand. This master is organized jointly by Kasetsart University (Bangkok, Thailand), the Institut National Polytechnique de Toulouse (France) and CIRAD (International Center in Agricultural Research for Development, France). This master’s curriculum has been designed to fit the key competencies identified during a regional web-survey carried out in 2011 across members of international organizations, academic, public and private sectors in SEA. Some modules will also be opened to professionals engaged in a continuing education program, with the possibility of e-learning courses. Double accreditation from French and Thai universities will ensure education quality and diploma validity. Efforts to educate students in a “One Health” perspective and at a regional scale will be made, by making veterinary, medical and biosciences students work together on real cross-country problems. Also, special attention will be given during the courses to community-based participatory actions. Innovative pedagogical tools (active learning, real case problem-solving, field visits, and computer-based modules) will be promoted. Through teachings and internships, students will interact with professionals from the private agricultural sector, international organisations, governmental agencies, NGOs and research institutes. The master will initiate the creation of professional social networks at a regional level. In a context of trade globalization and climate change, “InterRisk” graduates will be able to conceptualise and design holistic programs integrating epidemiological, ecological, and socio-economic approaches to tailor public health and animal diseases control policy decisions to the actual SEA situation. http://library.iated.org/view/PAUL2013INT
World's Veterinary Journal
During 2012 - 2016, goat farms in Sing Buri province were growing rapidly with support from the T... more During 2012 - 2016, goat farms in Sing Buri province were growing rapidly with support from the Thai government. In the following three years (2017-2019), the analysis of brucellosis surveillance data indicated that the seropositivity of brucellosis in goats increased. Therefore, this study attempted to identify possible risk factors associated with brucellosis seropositivity in meat goats raised in Sing Buri province of Thailand. A case-control study was conducted in a random sampling of 72 goat farms in Sing Buri province, Thailand. Questionnaires were used to collect information regarding farm production types, husbandry, goat health management, grazing management, breeding, carcass management, and goat purchasing. Bivariate and logistic regression analyses were used to determine the risk factors of Brucella seropositivity. Results revealed that the most frequent health complaint by the farmers was a stillbirth. Brucella seropositivity at the farm level was 26.4%. The two most pr...
Veterinary World
Background and Aim: Marek's disease (MD) is a common lymphoproliferative disease affecting ch... more Background and Aim: Marek's disease (MD) is a common lymphoproliferative disease affecting chickens and causing economic losses in commercial poultry. The MD outbreak was noticed in the southern part of Thailand in 2019. The suspected cases were found with an abnormal number of cases of layers dying with clinical signs, for example, weakness and emaciation, with evidence of MD gross lesions. This study aimed to raise awareness of the MD outbreak through value chain analysis (VCA), identifying associated possible risk factors, and estimating the associated economic impact. Materials and Methods: Value chain analysis, including seasonal calendar, value chain diagram, and layer movement mapping of the layer industry, was conducted. High-risk stakeholders were identified on the basis of risk practices and interactions between stakeholders. A case–control study was conducted to determine risk factors associated with the MD outbreak on layer farms, and partial budget analysis was used...
Globalization of tropical animal diseases and public health concerns. Proceedings of the 13th Association of Institutions for Tropical Veterinary Medicine (AITVM) Conference, Bangkok, Thailand, 23-26 August 2010, 2010
Animal Science Journal, 2021
Effects of body condition score (BCS) at far‐off dry period on blood biochemistry, liver triacylg... more Effects of body condition score (BCS) at far‐off dry period on blood biochemistry, liver triacylglycerol, and muscular monocarboxylate transporter‐1 mRNA expression in tropical Holstein dairy cows during peripartum period were studied. Eight dry cows were divided into two groups of four cows based on their BCS at 8 weeks prepartum: high BCS (HBS) and low BCS (LBS). Blood samples were collected weekly from 8 weeks before expected calving date until 8 weeks postpartum for determination of serum glucose, non‐esterified fatty acid (NEFA), and β‐hydroxybutyrate (BHBA). Muscle and liver samples were biopsied at 2 weeks before expected calving date and at 2 weeks postpartum for determination of muscular monocarboxylate transporter‐1 (MCT‐1) mRNA expression and liver triacylglycerol concentrations. Decreased BCS and elevated serum NEFA and BHBA indicated that LBS cows entered to the NEB period earlier than did HBS cows. LBS cows showed lower liver TAG and higher muscular MCT‐1 mRNA expressi...
A trial involving 1,885 weanling pigs (24 d of age) was conducted to determine if an exogenous em... more A trial involving 1,885 weanling pigs (24 d of age) was conducted to determine if an exogenous emulsifier, glyceryl polyethyleneglycol ricinoleate (Bredol®), would improve growth performance and prevent deterioration of fat in the diets in a three-phase starter feeding regime. Creep diet was fed from d 0 to 7, Nursery 1 diet from d 7 to 21 and Nursery 2 diet from d 21 to 35 post-weaning. Five percents of crude soybean oil were added to all diets. Bredol® was homogenized with the fat source prior to mixing with the treatment diets. Diets were mixed every other day and samples were sent to the laboratory within 2 days after mixing for determination of lipid oxidation. Lipid oxidation was measured in mg malonaldehyde per g of sample. Pigs were randomly allocated into 145 pens, each of 13 pigs. Pen was considered the experimental unit. There were 73 pens for the control group and 72 pens for the treatment group. Pigs were fed to appetite 6-8 times per day using feed trough and had ad li...
Journal of Mahanakorn Veterinary Medicine, 2019
Kasetsart Journal. Natural Sciences, 2008
Performance of 20 periparturient Holstein Friesian dairy cows fed alfalfa hay-base total mixed ra... more Performance of 20 periparturient Holstein Friesian dairy cows fed alfalfa hay-base total mixed rations during transition and lactation periods was studied in a commercial dairy farm. From 7 d prior to anticipated calving date until 7 d after calving, all cows were also drenched with 400 ml of propylene glycol once daily. Blood samples were collected at -2, 1, 2, 3 and 4 wk from parturition. Milk yields were recorded daily, and milk samples were collected twice a week to determine milk compositions. Compared with the concentrations at -2 wk, serum glucose and urea nitrogen concentrations decreased whereas serum non-esterified fatty acid and β-hydroxybutyrate concentrations increased after calving. These results indicated that these cows entered some degrees of negative energy balance. Average milk production during 30 d postpartum was 34.8 ± 8.7 kg/d. Average days from calving to first service was 86 ± 24 d, and 55% of 20 cows were conceived at first service. In conclusion, cows fed ...
International Journal of One Health, 2021
Background and Aim: Animal rabies is endemic in Nepal, and it occurs in two forms. Although gover... more Background and Aim: Animal rabies is endemic in Nepal, and it occurs in two forms. Although governmental and non-governmental agencies are working toward the control of rabies by mass dog vaccination and stray dog population management, there is still massive number of rabies incidence reported to the reference veterinary laboratory, Nepal. Therefore, this study aimed to assess animal species, temporal, regional, and agro-ecological distribution patterns of animal rabies in Nepal from 2005 to 2017. Materials and Methods: The epidemiological data on animal rabies from the period of 2005 to 2017 were obtained from the Central Veterinary Laboratory, Tripureshwor, Kathmandu, Nepal. The laboratory-confirmed rabies cases were analyzed according to animal species, temporal, regional (developmental zones), and agro-ecological distributions. In addition, descriptive statistics were used to evaluate the distribution patterns of rabies. Results: From 2005 to 2017, a total of 2771 suspected rab...
Virus Research, 2020
Foot-and-mouth disease (FMD) is a persistent, major economic concern for livestock productivity, ... more Foot-and-mouth disease (FMD) is a persistent, major economic concern for livestock productivity, which is highly exacerbated by outbreaks in Thailand. FMD virus (FMDV) serotype A is more highly antigenic and genetically diverse than other serotypes, which has important implications for vaccine development as well as selection. Therefore, it is essential to continuously monitor antigenic and genetic changes of field isolates of FMDV serotype A. Here we used antisera against three vaccine strains (A/118/87, A/Sakolnakorn/97, and A/Lopburi/2012) to analyze the antigenicity of 133 field isolates of FMDV serotypes A in Thailand from 2007 to 2019. The majority of the isolates from 2007 to 2008 reacted only with the antiserum against strain A/118/87. In contrast, antigenic analysis revealed broad cross-reactivity and antigenic variations of the isolates from 2009 through 2019 against strains A/Sakolnakorn/97 and A/Lopburi/2012. These results indicate periodic changes in the antigenicity of field isolates of FMDV serotype A. Phylogenetic analysis of the VP1 region revealed that all isolates were of the Sea-97 lineage within the ASIA topotype. Analysis of the L-fragment genome sequences of 30 FMDV isolates collected throughout Thailand revealed highly variable amino acid sequences of VP1 and 3A, with the lowest average identity (94.56 %) and invariant (78.43 %) rates, respectively. The present findings indicate the importance of an active routine surveillance system incorporating antigenic and genetic analysis designated to continually update information about field isolates of FMDV serotype A. Such a system is essential for establishing and improving measures to control FMDV infections in Thailand and in neighboring Asian countries.
African Journal of Agricultural Research, Dec 4, 2010
The objective of the study was to evaluate the effect of feeding soybean oil (SB) and sunflower o... more The objective of the study was to evaluate the effect of feeding soybean oil (SB) and sunflower oil (SF) on ruminal fluid, plasma and milk fatty acid profiles. Eighteen cows were obtained for the experiment and received 20 kg corn silage and 7.5 kg concentrate as a base diet, containing 6.2% palm oil on a dry matter basis, for four weeks. Subsequently, after the four-week experimental period, six cows were assigned to each of the dietary treatments. The treatments consisted of three groups: 1) the same base diet, containing 6.2% palm oil (control); 2) 6.2% SB; and 3) 6.2% SF. All treatments did not alter milk production. The milk fat percentages were significantly (P < 0.05) lower in the cows fed the SB- and SF-rich diets at day 7 and 14, whereas milk fat yields were significantly (P < 0.05) lower only in the cows fed the SF-rich diet at day 7. The proportion of ruminal C16:0 was significantly (P < 0.001) lower and C18:0 was significantly (P < 0.05) higher for the SB and SF diets, while in addition, C18:1n9 tended to be lower on the SF diet (P = 0.062). The proportions of plasma C16:0 and C18:1n-9 were significantly (P < 0.05) lower for the SB and SF diets, whereas C18:0 was significantly (P = 0.027) higher with the SB diet. Even though no differences in polyunsaturated fatty acids, in either the ruminal fluid or plasma, were found among the treatments, the proportion of milk linoleic acids (C18:2n-6) was similar in the SB and SF diets and both diets had proportions that were significantly (P < 0.001) higher than in the control. In addition, milk linolenic acids (C18:3n-3) were significantly (P < 0.05) greater in the SB diet than for the SF diet and for the control. An increase in the ruminal pH and a reduction in blood non-esterified fatty acid (NEFA) were detected in cows fed either the SB or SF diet. The results suggested (with the balance between dietary fatty acids hydrogenated in the rumen and taken up by the mammary gland) that SB is an acceptable fat source for high linoleic acid and linolenic acid (omega-6 and 3) and that SF is suitable for high linoleic acid (omega-6)-produced milk, without adverse effects on milk yield and composition. This practical feeding trial would reflect the use of these oils to produce
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Papers by Theera Rukkwamsuk