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ผลงานตีพิมพ์ในวารสารวิชาการEffects of evaporative cooling on reproductive performance and milk production of dairy cows in hot wet conditionsผู้แต่ง: Khongdee, S, Chaiyabutr, N, Hinch, G,  Dr.Kanchana Markvichitr, Professor , Mr.Chanvit Vajrabukka, Professor, วารสาร:  
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ผลงานตีพิมพ์ในวารสารวิชาการBlood biochemical profiles of Thai indigenous and Simmental X Brahman crossbred cattle in the Central Thailandผู้แต่ง:Boonprong, S, Mrs.Choosri Sribhen, Assistant Professor, Dr.Apassara Choothesa, Associate Professor, Parvizi, N, Mr.Chanvit Vajrabukka, Professor, วารสาร: |
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ผลงานตีพิมพ์ในวารสารวิชาการEffect of source of methionine in broken rice-soybean diet on production performance, blood chemistry, and fermentation characteristics in weaned pigsผู้แต่ง:Krutthai, N., Mr.Chanvit Vajrabukka, Professor, Dr.Kanchana Markvichitr, Professor, Dr.Apassara Choothesa, Associate Professor, Dr.Jamroen Thiengtham, Associate Professor , Dr.Suriya Sawanon, Professor , Mr.Chanwit Kaewtapee, Associate Professor , Dr.Chaiyapoom Bunchasak, Professor , วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการProductivity of Thai Brahman and Simmental-Brahman crossbred (Kabinburi) cattle in central Thailandผู้แต่ง:Boonprong, S, Dr.Apassara Choothesa, Associate Professor, Mrs.Choosri Sribhen, Assistant Professor, Parvizi, N, Mr.Chanvit Vajrabukka, Professor, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการDifferences of skin morphology in Bos indicus, Bos taurus, and their crossbredsผู้แต่ง:Jian, W, Duangjinda, M, Mr.Chanvit Vajrabukka, Professor, Katawatin, S, วารสาร: |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of Increasing Heat Loss on Some Physiological Parameters Of Farrowing Sows Under Tropical Climate) ผู้เขียน:Piratch Srichana, นายชาญวิทย์ วัชรพุกก์, ศาสตราจารย์, นายสุรชัย ชาครียรัตน์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractSixteen large White sows were allocated randomly onto 4 treatments in a Completely Randomised Designed (CRD) experiment with 4 replicates. The treatment were Treatment 1: Control – normal farrowing pens, Treatment 2:normal farrowing pens with electric fan, Treatment 3:normal farrowing pens with dripper and Treatment 4:mormal farrowing pens with electric fan and dripper. The result revealed that respiration rate of the sows in Treatment 1 (128.76 breaths/min.) was significantly higher (P<0.05) than that of the sows in other treatments. The respiration rate of the sows in Treatment 4 (70.97 breaths/min.) was significantly lower (P<0.05) than that of the other treatments except those in Treatment 3 (86.64 breaths/min.). The heart rate of the sows in Treatment 3 (82.90 beats/min.) was significantly lower than those found in Treatment 1 (89.04 beats/min.) and Treatment 2 (88.59 beats/min.). Both skin and rectal temperatures of the sows in Treatment 1 (39.23 and 40.25?C, respectively) were significantly higher (P<0.05) than that of the sows in all other treatments. Furthermore, the results revealed that both respiration rate and skin temperature of all the sows during the period of 1 week prior to parturition were significantly higher (P<0.05) than that of the other periods post parturition. There was no significant difference in heart rate among the observed periods. The rectal temperature of the sows during the 1 week period prior to parturition (39.02?C) was significantly lower (P<0.05) than that of the other periods post parturition. The rectal temperature of the sows during the 1 st week post parturition (39.69?C) was significantly lower (P<0.05) than that of the 3rd week post parturition (39.94?C). There was no significant difference (P>0.05) among rectal temperature of all the sows in 2nd , 3rd and 4th weeks post parturition. It was concluded that heat stress in a farrowing sow may be alleviated by dripper with or without fan. The elevated metabolic rate may be associated with milk production activities of the sow. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Physiological and Productive Performance Responses of Horro Cows to Shade) ผู้เขียน:Gizaw Kebede, Kanchaana Markvichitr, ดร.สมเกียรติ ประสานพานิช, รองศาสตราจารย์ , นายชาญวิทย์ วัชรพุกก์, ศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractTwenty eight Horro cows were used to determine whether shade influences milk production and composition, days open, some physiological and hormonal traits. Cows grazed on natural pasture predominantly, Cynadon dactylon for about 7 hours/day. During grazing, one of the groups had access to shade where as the other group was not allowed to have any shade including trees. Cows were supplemented with concentrate feed during milking in the morning, evening and after grazing. Data on physiological, productive and reproductive parameters between the two groups were compared. Significant differences were observed in respiration rate, rectal temperature, pulse rate and live weight of cows between the two treatments. But there were no significant differences in average daily milk yield, days open and services per conception. Hence it is suggested that a form of shade should be made available for grazing Horro cows. |
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