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 การประชุมวิชาการThe Prevalence of Mycoplasma hyopneumoniae in Commercial Suckling Pigs in Thailandผู้แต่ง: Mr.Alongkot Boonsoongnern, Assistant Professor , Mr.Pichai Jirawattanapong, Lecturer, Dr.Preeda Lertwatcharasarakul, Assistant Professor,  Sakukuna Phatthanakunanan, Dr.Pariwat Poolperm, Assistant Professor , Supanee Urairong, Wichian Navasakuljinda, Mr.Kittcha Urairong, Associate Professor, การประชุมวิชาการ: |
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ผลงานตีพิมพ์ในวารสารวิชาการGenetic characterization of porcine circovirus type 2 in piglets from PMWS-affected and -negative farms in Thailandผู้แต่ง:Jantafong, T, Mr.Alongkot Boonsoongnern, Assistant Professor, Dr.Pariwat Poolperm, Assistant Professor, Mr.Kittcha Urairong, Associate Professor, Dr.Chalermpol Lekcharoensuk, Assistant Professor , Dr.Porntippa Lekcharoensuk, Professor , วารสาร:  
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ผลงานตีพิมพ์ในวารสารวิชาการThe Prevalence of Mycoplasma hyopneumoniae in Commercial Suckling Pigs in Thailandผู้แต่ง:Mr.Alongkot Boonsoongnern, Assistant Professor, Mr.Pichai Jirawattanapong, Lecturer, Dr.Preeda Lertwatcharasarakul, Assistant Professor, Ms.SAKUNA PHATTHANAKUNANAN, Dr.Pariwat Poolperm, Assistant Professor, สุปาณี อุไรรงค์, วิเชียร นวสกุลจินดา, Mr.Kittcha Urairong, Associate Professor, วารสาร: |
การประชุมวิชาการPhylogenetic analysis of porcine circovirus type 2 isolated from PMWS-negative and –affected farms in Thailandผู้แต่ง:Tippawan Jantafong, Nattarat Thangthumniyom, Pattama Mutthi, Alongkot Boonsoongnern, Chalermpol, Lekcharoensuk, Pariwat Poolperm, Kitcha Urairong, Dr.Porntippa Lekcharoensuk, Professor, การประชุมวิชาการ: |
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การประชุมวิชาการDetection of viral antigen in mummified fetuses and its association with sow reproductive performanceผู้แต่ง:Mr.Alongkot Boonsoongnern, Assistant Professor, Dr.Pariwat Poolperm, Assistant Professor, Dr.Preeyaphun Udomprasert, Associate Professor, Mr.Narut Thanantong, Lecturer, Dr.Preeda Lertwatcharasarakul, Assistant Professor, Mr.Kittcha Urairong, Associate Professor, การประชุมวิชาการ: |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Effect of Virginiamycin on Gilt Productivity) ผู้เขียน:ปรียพันธุ์ อุดมประเสริฐ, Kitcha Urairong, Suvicha Kasemsuwan, Charoen Parchariyanon สื่อสิ่งพิมพ์:pdf AbstractA field trial to demonstrate the effect of cirginiamycin (VM) on sow productivity under local environment was conducted on a 1,200 sow herd in Suphanburi province. A twin set of gilts was randomly allocated to either control or treatment group. Gilts in the treatment group received gestation and lactation diets containing 40 ppm of VM while gilts in the control group received diets containing none. Gilts were served on their second observed estrus using artificial insemination. The number of services and the sequence of boar used at the mated estrus were forced to be the same within a twin set. A twin set was excluded from this trial if either one returned to estrus, exhibited vaginal discharge of failed to conform with the service rules. The farrowing rates between groups did not differ singnificantly (84.7 VS 82.6, P = 0.7780). The treated gilts produced 1.7 piglets born alive/litter (P=0.000) and 1.6 piglets weaned/litter (P = 0.0044) more than the control gilts. However, the average weaning weight of piglets nursed by the treated gilts was significantly lower (6.28 VS 5.67, P =0.0114). When the treatment factor was withdrawn and the reproductive performance of both groups was followed through the subsequent parity, the averages of weaning to the first service interval (5.54 VS 5.60, P=0.8465), the farrowing rates (75.75 VS 75.75) and the piglets born alive/litter (9.10 VS 9.78, P =0.5575) in both groups became similar. |
หัวเรื่อง:อิทธิพลของช่วงหย่านมถึงผสมครั้งแรกที่มีต่ออัตราเข้าคลอดและขนาดครอกของสุกรแม่พันธุ์ในประเทศไทย ผู้เขียน:ปรียพันธุ์ อุดมประเสริฐ, Kitcha Urairong, Tawatchai Sakpuaram, วรวิทย์ วัชชวัลคุ สื่อสิ่งพิมพ์:pdf AbstractData from 6,871 parity records, collecting from 8 commercial swine breeding herds which have been under the health and management services of the Faculty of Veterinary Medicine, Kasetsart University for 2 years, were used to determine the relationships between the wean-to-first-service interval (WFS) and the subsequent farrowing rate and litter size. The regression procedures both logistic and polynomial were utilized to find the models best explaining the variability of the data. Sows were most fertile when the WFS was between 3-5 days and 20-25 days. The farrowing rate for this group of sows was likely to be above 85 percent. On the other hand, the farrowing rate for sows having WFS between 0-1 day and 10-17 days could be expected to be lower than 80%. The strong association between WFS and farrowing rates suggested that a strategy to maximize sow lactation intake was likely to result in improved herd farrowing rate but may not result in improved herd litter size since WFS indicated only a small fraction of litter size variability (R2 = 0.089). |
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หัวเรื่อง:การศึกษาประสิทธิภาพการผลิตในฟาร์มสุกร 30 แห่ง I. สถานภาพในการผลิต ผู้เขียน:ปรียพันธุ์ อุดมประเสริฐ, Kitcha Urairong, Tawatchai Sakpuaram, วรวิทย์ วัชชวัลคุ สื่อสิ่งพิมพ์:pdf AbstractA produciton profile concluded from 30 commercial swine herds, using PigLIVE or PigCHAMP database, was persented. Data validation, secection rules and definitions of procuction indices were thoroughly described. Statistics on each index were expressed as arithmetic mean, medium standard deviation, range and 95% cofidence interval. The sign of sub optimum performance was obvious among the herd population in this study. On average, only 17.6 piglets were produced per sow per year while 23 piglets were expected with the maximum biological feasibility. Extensions on procedures to maximize lactation feed intake and proper culling practice may help producers to alleviate the sub optimum productivity. Research on finding the indidence, control and prevention of reproductive diseases deserve funding priotity. A fact that the number of breeding females in this study was increasing by 16.5% during 1992 indicate the changing structure of swine production uit toward intensification and speccialization. |
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หัวเรื่อง:การศึกษาประสิทธิภาพการผลิตในฟาร์มสุกร 30 แห่ง II. ความสัมพันธ์ระหว่างดัชนีการผลิต ผู้เขียน:ปรียพันธุ์ อุดมประเสริฐ, Kitcha Urairong, Tawatchai Sakpuaram, วรวิทย์ วัชชวัลคุ สื่อสิ่งพิมพ์:pdf AbstractThe data collected during 1992 from 30 commercial swine herds using PigLIVE or PigCHAMP database was used to calculate series of production indices for each herd. The simple correlation coefficients between primary and secondary indices were examined a set of 15 members of secondary indices which were highly correlated with pigs weaned/sow/year. A linear regression model best explaining the variability in pigs weaned/sow/year was then constructed by means of All Subset Regression procedure of Statistix.tm Litters/sow/year (r = 0.93), born alive litter size (r = 0.75) and preweaning mortality (r = -0.25) were correlated with pigs weaned/sow/year. The linear regression model having wean to first service interval, farrowing rate, annual percentage increase in sow inventory, lactation length and % stillborn piglets as its independent variables, provided the best explanation for the variability in pigs weaned/sow/year (R-squared = 0.85, P<0.01). The sow lactation intake and the gilt management may be the two most important factors causing suboptimum performance among the herds studied. |