WOOD ASH, SODIUM-HYDROXIDE AND URINE TO INCREASE SORGHUM STRAW UTILIZATION BY SHEEP

被引：5

作者：

RAMIREZ, RG

GARZA, J

MARTINEZ, J

AYALA, N

机构：

[1] Facultad de Agronomía, Universidad Autónoma de Nuevo León, San Nicolas de los Garza, N.L.

来源：

SMALL RUMINANT RESEARCH | 1991年 / 5卷 / 1-2期

关键词：

D O I：

10.1016/0921-4488(91)90033-M

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

In experiment I, 12 lambs (30.3 Kg BW) were fed 4 diets containing 85% sorghum straw treated with 0% wood ash (WA) solution (w/v) (OWA), 10% (10WA), 20% (20WA) and 30% (30WA). Dry matter (DM) digestibility was affected quadratically (P < 0.01) by WA treatment, from 49.6% to 60.0% for lambs fed the 30WA and 20WA diets. Organic matter (OM) and crude protein (CP) digestibilities did not differ (P > 0.05) among diets. Acid detergent fiber (ADF) digestibility was affected quadratically (P < 0.05) from 45.8% to 49.1% for controls vs. 20WA diets, respectively. Neutral detergent fiber (NDF) digestibility changed (P < 0.01) from 51.5% to 63.1% for controls vs. 20 WA diets, respectively. In experiment II, 18 whether lambs (28.7 Kg BW) were fed 6 diets containing untreated (control) sorghum straw or treated with 20% solutions (w/nu) of WA (20WA), or with 4 g NaOH/100 g straw DM (4NaOH), or 20WA plus urea, or 20WA plus urine, or urine only. Lambs digested greater (P < 0.05) amounts of DM and OM, respectively when fed diets containing sorghum straw with 20WA (56.9%, 61.4%), 20WA plus urea (62.1%, 64.3%), and urine (58.5%, 57.4%) compared with untreated diets (51.7%, 52.0%), 4NaOH (50.2%, 53.8%) and 20WA plus urine (47.7%, 47.8%), respectively. Lambs digested greater (P < 0.05%) amounts of ADF and NDF, respectively, when fed sorghum straw treated with 20WA (56.7%, 63.1%), 4NaOH (56.3%, 62.2%), 20WA plus urea (61.3%, 66.5%), and urine only (52.4%, 60.5%) compared with controls (48.6%, 55.2%) and 20WA plus urine (43.8%, 51.2%), respectively. Results of this study suggest that treatment of sorghum straw with 20% WA solutions or with animal urine can increase fiber utilization by lambs in amounts comparable to the increase observed with NaOH treatment.

引用

页码：83 / 92

页数：10

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