สืบค้นงานวิจัย
Energy and protein requirement of yearling Thai native cattle
Kungwan Thummasaeng - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Energy and protein requirement of yearling Thai native cattle
ผู้แต่ง / หัวหน้าโครงการ (EN): Kungwan Thummasaeng
บทคัดย่อ (EN): Four experiments were conducted at Ubon Ratchathani University and Khon Kean Animal Feed Research Center during 2006-2009. The summary results of each experiment are as follow. Experiment 1, study on protein requirement for maintenance of yearling Thai native cattle. It was found that the daily N requirement for maintenance (Y = 0 or N retention = 0) Y = -0.1101 + 0.1582 N intake (R2 = 0.92, SE = 0.002, P<0.05). From the regression, it can be estimated that the N requirements for maintenance of yearling Thai native cattle was 0.70 gN/kgBW0.75/d or equivalent to 4.36 gCP/kgBW0.75 /d, Experiment 2, study on nutritive value of Mulato II and 15 hybrid Brachiaria grasses. The results showed that Mulato II grass is high quality forage. The top five of hybrid Brachiaria grasses ranked were BR02/1718, BR02/1485, BR02/1794, BR02/1423 and BR02/0768, respectively. Experiment 3, study on nutrients digestibility and energy content of Mulato II. The results found that dry matter intake was 1.54% BW or 64.6 g/kgBW0.75. Digestibility of DM, OM, CP, NDF and TDN were 60.9, 64.1, 53.0, 63.1 and 58.8%, respectively. Nitrogen retention was 11.4 g/d and ME content was 8.18 MJ ME/kg DM. Experiment 4, study on energy requirement for growth of yearling Thai native cattle. In the feeding trial, the cattle were fed 3 different levels of energy above requirement for maintenance (M) for 84 days, (T1 = 1.3 M, T2 = 1.6 M and T 3 = 1.9 M). The results showed that the average daily gain (ADG) was 0.61, 0.73 and 0.85 kg/d and feed conversion ratio was 3.40, 3.64 and 3.86, respectively. The metabolizable energy intake (MEI) estimated by simple linear regression was MEI (kJ/kgBW0.75/d) = 311.7 + 34.92 (ADG).
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): th
จำนวนหน้า: 8
เอกสารแนบ: https://ag2.kku.ac.th/kaj/PDF.cfm?filename=JIR03 Kungwan.pdf&id=375&keeptrack=39
คำสำคัญ (EN): Hybrid Brachiaria
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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Kungwan Thummasaeng. "Energy and protein requirement of yearling Thai native cattle". ไม่ระบุหน่วยงาน. 2553

Kungwan Thummasaeng. "Energy and protein requirement of yearling Thai native cattle". ไม่ระบุหน่วยงาน. 2553. Print.



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Energy and protein requirement of yearling Thai native cattle
Kungwan Thummasaeng
ไม่ระบุผู้เผยแพร่
2553
Crude protein requirement for maintenance of Thai native cattle:A meta-analysis Current Status of Protein Requirement for Thai Brahman Cattle in the Northeast of Thailand Effects of climatic condition on nutritional and physiological responses of yearling Thai native cattle Effects of metabolizable energy intake on growth performance and nutrient digestibility of Thai native cattle Protein and energy requirements for maintenance and growth of Thai indigenous cattle I. growth period from 100 – 150 kgฺ of body weight Energy and nitrogen utilization of Thai native cattle given low quality hay and sago palm pith with different levels of soybean meal Effect of dietary energy and protein level on growth performance of native chickens at the starter phase ์Nutrient Requirements of Dairy Cattle in Thailand: Energy requirement of lactating dairy cows Crude Protein for Maintenance of Growing Thai-indigenous Beef Cattle Fed with Rice Straw as Roughage Effects of palm oil sludge in concentrate on nutrient utilization and rumen fermentation in Thai Native Cattle
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