In vitro and in sacco digestibility of wheat straw treated with calcium oxide and sodium hydroxide alone or with hydrogen peroxide

Chaudhry A.S. (1998) In vitro and in sacco digestibility of wheat straw treated with calcium oxide and sodium hydroxide alone or with hydrogen peroxide. Animal Feed Science and Technology, 74 4: 301-313.

Author Chaudhry A.S.
Title In vitro and in sacco digestibility of wheat straw treated with calcium oxide and sodium hydroxide alone or with hydrogen peroxide
Journal name Animal Feed Science and Technology   Check publisher's open access policy
ISSN 0377-8401
Publication date 1998-08-15
Sub-type Article (original research)
Volume 74
Issue 4
Start page 301
End page 313
Total pages 13
Subject 1103 Clinical Sciences
1106 Human Movement and Sports Science
3400 Veterinary
Abstract A series of five factorial experiments examined the effects of sodium hydroxide (NaOH) and calcium oxide (CaO) alone or together with hydrogen peroxide (H2O2,27.5% w/w) at pH of about 11.5 (AHP) on in vitro (IVDMD) and in sacco (ISDMD) dry matter digestibility of wheat straw. The effects of different temperatures (20°C, 40°C and 60°C), various times (2, 3, 4, 6 and 27 h), pre-soaking, filtration and washing on the efficacy of the above levels of chemicals in improving IVDMD and ISDMD were tested in separate experiments. AHP improved IVDMD (P<0.001) of straws when pH was regulated to around 11.5 using NaOH. In contrast, AHP was ineffective or depressive (P<0.001) when CaO was used to regulate pH to around 11.5. However, CaO alone increased IVDMD to a similar extent as did NaOH. Washing, filtration and temperature were ineffective in improving the IVDMD of CaO-treated straw. AHP was most effective when 130 g H2O2 was applied to each kg DM of straw after soaking it with 3 l solution containing 80 g NaOH for a period of 27 h. The nutritional value of low quality forages can be enhanced for ruminants by using alkalis provided conditions as described above are maintained during alkali treatments.
Keyword Calcium oxide
Hydrogen peroxide
In vitro and in sacco digestibility
Sodium hydroxide
Wheat straw
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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