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Comparison of fattening Thai native steers on grassland grazing and in feedlot fed corn silage-base with supplemental two protein concentration diets |
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| รหัสดีโอไอ | |
| Creator | Kecha Kuha |
| Title | Comparison of fattening Thai native steers on grassland grazing and in feedlot fed corn silage-base with supplemental two protein concentration diets |
| Contributor | Panuwat Chaiyong, Sornthep Tumwasorn |
| Publisher | Faculty of Science and Agricultural Technology |
| Publication Year | 2563 |
| Journal Title | Journal of Science and Agricultural Technology |
| Journal Vol. | 1 |
| Journal No. | 2 |
| Page no. | 14-20 |
| Keyword | performance, blood biochemical, grassland, feedlot, Thai native steer |
| URL Website | https://ph02.tci-thaijo.org/index.php/JSAT/index |
| Website title | JSAT |
| ISSN | 2730-1524 |
| Abstract | This study determined growth performance and blood biochemical values of Thai native steers during 120days of fattening. Twelve healthy three-year-old steers were assigned equally into two groups. One group wasallowed free grazing on grassland improved mainly with purple guinea grass (Panicum maximum), and the othergroup was reared in feedlot fed with corn silage-base. Both groups supplemented with different crude proteinconcentrate diets due with 12 and 14 percent of about 1 percent of the bodyweight a day. The results found thatsteers on grassland were significantly higher average daily gain than those steers reared under feedlot conditions.There was no significant difference in these values between steers supplemented with either of the two protein diets.Blood biochemical values at the end of the trial were not significantly different for the steers fed with differentdietary treatments. Glucose, alkaline phosphatase, albumin, mean corpuscular volume and, mean corpuscularhemoglobin after the trial increased, but free serum thyroxine and triiodothyronine decreased and differedsignificantly from the values at the beginning of the trial. Other blood biochemical values, triglyceride, totalcholesterol, total bilirubin, direct bilirubin, aspartate serum transferase, alanine transaminase, blood urea nitrogen,and creatinine were not significantly different between the inception and the conclusion of the trial. Differences indietary protein supplementation caused no differences in the blood biochemical values of the steers. These resultsimply that the Thai native steer should fatten on grassland with a 1 percent BW dietary supplemental concentrate of12 percent of CP |
