 |
 Researcherดร. อุทัยวรรณ โกวิทวที, รองศาสตราจารย์ที่ทำงาน:ภาควิชาสัตววิทยา คณะวิทยาศาสตร์ สาขาที่สนใจ:Ecology, Taxonomy, Culture Gloehidia in Modified Media nad Rearing Adult of Freshwater Mussel Freshwater Ecology, Aquaculture Resume |
 |
|
|
ผลงานตีพิมพ์ในวารสารวิชาการCricket powder as an alternative protein source for broilers based on in vitro digestibilityผู้แต่ง: Dr.ATTAWIT KOVITVADHI, Associate Professor ,  Pipatpong Chundang, J. Luapan , P. Amarapitak , P. Sriyaphai , R. Buahom , T. Cham-iam , Dr.Kansuda Leelahapongsathon, Assistant Professor , C. Tirawattanawanich, Karun Thongprajukaew, วารสาร:  
|
|
|
ผลงานตีพิมพ์ในวารสารวิชาการThe effects on in vitro digestibility from different developmental stages of silkworm larvae, Bombyx mori (Lepidoptera: Bombycidae) and position of mulberry leaves, Morus alba (Rosales: Moraceae)ผู้แต่ง:Chandang, P., Thongprajukaew, K., Chotimanothum, B., Dr.ATTAWIT KOVITVADHI, Associate Professor, Dr.Uthaiwan Kovitvadhi, Associate Professor, Mrs.Pannee Pakkong, Associate Professor , วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการImproving the nutritive value of mulberry leaves, Morus spp. (Rosales: Moraceae) for silkworm larvae, Bombyx mori (Lepidoptera: Bombycidae) using gamma irradiationผู้แต่ง:Pipatpong Chundang, Karun Thongprajukaew, Dr.Uthaiwan Kovitvadhi, Associate Professor, Banthari Chotimanothum, Dr.ATTAWIT KOVITVADHI, Associate Professor, Mrs.Pannee Pakkong, Associate Professor, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการScreening of in vitro nutrient digestibility coefficients of selected insect meals in broiler chickens, black-meat chickensand quailsผู้แต่ง:Dr.ATTAWIT KOVITVADHI, Associate Professor, Pipatpong Chundang, Nichaphon Pliantiangtam, Karun Thongprajukaew, Dr.Chanin Tirawattanawanich, Assistant Professor, Dr.Thanathip Suwanasopee, Assistant Professor , Dr.Skorn Koonawootrittriron, Associate Professor , วารสาร:  |
ผลงานตีพิมพ์ในวารสารวิชาการPhysical modification of palm kernel meal improved available carbohydrate, physicochemical properties and in vitro digestibility in economic freshwater fishผู้แต่ง:Thongprajukaew, K., Yawang, P., Dudae, L., Bilanglod, H., Dumrongrittamatt, T., Tantikitti, C., Dr.Uthaiwan Kovitvadhi, Associate Professor, วารสาร: |
|
|
|
|
ผลงานตีพิมพ์ในวารสารวิชาการEffects of feeding frequency on growth performance and digestive enzyme activity of sex-reversed Nile tilapia, Oreochromis niloticus (Linnaeus, 1758)ผู้แต่ง:Thongprajukaew, K., Kovitvadhi, S., Dr.Uthaiwan Kovitvadhi, Associate Professor, Preprame, P., วารสาร: |
 การประชุมวิชาการTHE USAGE OF INSECTS AS SUSTAINABLE PROTEIN SOURCES FOR MEAT-BLACK CHICKENS, DUCKS AND QUAILSผู้แต่ง:Dr.ATTAWIT KOVITVADHI, Associate Professor, Pipatpong Chundang, Dr.Chanin Tirawattanawanich, Assistant Professor, Karun Thongprajukaew, Sunyanee Srikachar, Banthari Chotimanothum, Dr.Skorn Koonawootrittriron, Associate Professor, Dr.Thanathip Suwanasopee, Assistant Professor, การประชุมวิชาการ: 
|
การประชุมวิชาการแมลงชนิดใดดีที่สุดสำหรับเป็นอาหารเป็ดเนื้อจากผลการย่อยได้ในหลอดทดลอง (2019)ผู้แต่ง:Suwanan Kerttewa, Paksupa Pleehajinda, Nuttika Deethong, Pipatpong Chundang, Karun Thongprajukaew, Chanin Tirawattanawanich, Sunyanee Srikachar, Banthari Chotimanothum, Dr.ATTAWIT KOVITVADHI, Associate Professor, การประชุมวิชาการ: |
 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Characterization and Expression Levels of Protease Enzymes at Different Developmental Stages of Siamese Fighting Fish (Betta splendens Regan, 1910)) ผู้เขียน:Karun Thongprajukaew, ดร.อุทัยวรรณ โกวิทวที, รองศาสตราจารย์, ดร.อรุณี อิงคากุล, ผู้ช่วยศาสตราจารย์, Krisna Rungruangsak-Torrissen สื่อสิ่งพิมพ์:pdf AbstractCharacterization of total proteases, trypsin and chymotrypsin were performed at pH 2 12 and temperatures 20-80?C in three life stages of Siamese fighting fish (Betta splendens Regan, 1910). At least fourteen protease activities were detected, including seven acidic (pH levels 2, 4 and 5-6), one neutral (pH 7), and six alkaline (pH levels 8-12) activities in the optimal temperature range of 30-60?C. The neutral and alkaline pH profiles were different between sexes during the on-growing stage (1.5 month-old). The acidic proteases played a major role in digestion in the early life stage (10-day-old), while the alkaline proteases became more important toward older stages. Trypsin and chymotrypsin showed similar characteristics with at least five activities observed. For trypsin, activity was detected with pH 7 and 8 at 50?C, and pH 10 at 30, 50 and 60?C. For chymotrypsin, activity was found at pH levels 7 and 8 at 50?C, and pH 10 at 30, 40 and 50?C. Regardless of sex and age, the most suitable conditions for studying digestive enzyme activities in general were at pH 8 and 50?C for total proteases, pH 7-8 and 50?C or pH 10 and 30-35?C for trypsin and pH 7-8 and 50?C or pH 10 and 40?C for chymotrypsin. Trypsin and chymotrypsin are important proteases showing similar general optimal conditions to that of total proteases. This information provides elementary knowledge for studying protein digestibility by in vitro techniques and for determining growth performance quality using digestive enzyme markers in Siamese fighting fish. |