国立研究開発法人 国際農林水産業研究センター | JIRCAS

In Vivo Nutritive Value of Pangola Grass (<I>Digitaria eriantha</I>) Hay by a Novel Indirect Calorimeter with a Ventilated Hood in Thailand

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

A new animal calorimeter using a ventilated hood was constructed in Thailand. The recovery rates of our head cage were 96.5%, 97.0%, 95.7%, and 101.8%. The recovery rates of our head cage (95.7-101.8%) are reliable compared with Japanese whole-body chambers. The 99% CO2 recovery time of our head cage was an average 14 min. It was shorter than whole-body chambers because of smaller effective volume and higher flow rate. Our head cage system excels at dynamic measurement of heat production. We started accumulating data concerning the energy value of Pangola grass (Digitaria eriantha) using 4 Brahman steers (body weight, 372.8 ± 34.4 kg, mean ± standard deviation; age, 3 years old). They were fed Pangola grass for 21 days; the grass was harvested approximately 45 days after cutting in several farms around Bangkok. Digestible energy and metabolizable energy of Pangola grass hay in our study were 10.28 and 7.99 MJ/kg dry matter. The average volume of methane production was 228.3 L/day and energy loss in the form of methane was 0.097 of the gross energy intake. These values are acceptable when compared with those obtained when low-quality tropical feed is provided to the steers.

刊行年月2008-04-01
作成者SUZUKI TomoyukiPHAOWPHAISAL IttiphonPHOLSEN PimpapornNARMSILEE RumphraiINDRAMANEE SomchitNITIPOT PeerapotCHAOKAUR AnanSOMMART KritaponKHOTPROM NuttanartPANICHPOL VaruneeNISHIDA Takehiro
著者キーワード

Brahman steers

digestible energy

metabolizable energy

公開者Japan International Research Center for Agricultural Sciences
データ作成日2008-04-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
42
2
開始ページ123
終了ページ129
DOI10.6090/jarq.42.123
権利Japan International Research Center for Agricultural Sciences
言語eng