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 หัวเรื่อง:ผลของอาหารผสมสำเร็จอัดแท่งต่อการหมักย่อยในรูเมนและเลือดโค ผู้เขียน: พนัส ธรรมกีรติวงศ์, Pornsri Chairatayuth, Somkiat Timpatpong สื่อสิ่งพิมพ์:pdf AbstractSteers were fed by 1) paragrass hay concentrate 2) cubed leucaena-straw and concentrate and 3) TMR (total mixed ration). 3 x 3 Latin square, three fistulated steers of 310 kg by average were employed. Rumen liquor was collected at 0, 1, 2, 3, 4, 6, 8 and 12 h and blood was taken at 0, 3, 6, 9 and 12 h after meal. Dry matter intake, ruminal pH, NH3-N, acetic, propionic, butyric acid and protein nitrogen were similar (p>0.05). The pH was lowest and NH3-N was highest at 4 h after feeding while VFA and protein nitrogen were peaked at 3 and 8 h postfeeding. Blood urea was significantly different between treatments at 1 h after meal (p<0.05) and peaked at 4 postfeeding and blood glucose was similar (P>0.05) and was high at 12 h postfeeding. |
หัวเรื่อง:อิทธิพลของอาหารผสมเสร็จต่อการหมักย่อยในรูเมนและการเจริญเติบโตของลูกโคนมลูกผสมโฮลสไตน์-ฟรีเชียน ผู้เขียน:พนัส ธรรมกีรติวงศ์,  ดร.พรศรี ชัยรัตนายุทธ์, รองศาสตราจารย์ , Nuam Buathong สื่อสิ่งพิมพ์:pdf AbstractTwenty one calves were employed in this experiment that was allocated into 3 treatments 1) corn plant hay and concentrate 2) corn plant hay mixed with concentrate 3) corn plant silage mixed with concentrate. There were no different in growth rate, feed intake and feed efficiency among 3 treatments. However, the conversion of feed to body weight gain of claves in treatment 3 during postweaning period was significantly higher than in the treatment 1 (P<0.05). The results are discussed in relation to a change that was observed intraruminally. |
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