Effect of biological treatment for wheat straw on carcass characteristics of small ruminants
Abstract: This experiment was done using twenty four Rahmany lambs to study the effect of biological treatment of wheat straw on slaughter traits, Caracas characteristics and blood parameter. Lambs were divided into four similar groups (6 lambs/each group) with an average of 14.4 kg, live body weight aged 3-4 months. Lambs were fed according to NRC allowance to cover its requirement. First TI was considered as control group fed hay and concentrate feed mixture, second T2, T3, and T4 replaced 25, 50 and 75% from concentrate feed mixture with wheat straw treated with fungi, respectively. After 120 days four lambs were slaughtered from each group to evaluate the carcass characteristics.
The main results indicated that the better value of average body gain was in lambs fed 50% treated wheat straw while the lambs fed 75% treated wheat straw recorded lowest value of average body gain. The lambs fed 50% treated wheat straw recorded the highest fasted body weight while lambs fed 75% treated wheat straw had the lowest value and the differences between groups was significant. Also, T4 had the lowest hot carcass weight. The lamb takes T3 ration recorded high dressing percentage than the other two treated groups.
The carcass of lambs fed.75% treated wheat straw recorded 79.84 %of boneless meat in samples while the other groups recorded 73.7, 75.63 and 72.07 for control, 25 and 75% respectively.
While group T4 had the lowest fat % significantly differences between the other groups.
The analysis of blood serum, the lambs fed T3 ration had the highest value of total protein, no significant differences in analysis of liver between all groups.
It could be conclude that replace 50% from concentrate feed mixture with treated wheat straw in growing lambs ration can improve the daily gain and feed efficiency, also carcass characteristics.
Keywords: rahmany lambs, wheat straw, treated fungi, body weight, carcass, blood parameters.
Publication year 2007
Pages 229
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
Availability number
Organization Name
serial title Egyptian Journal Nutrition and Feeds
Author(s) from ARC
Agris Categories Animal feeding
AGROVOC
TERMS		 Blood composition. Body weight. Carcass composition. Lambs. Wheat straw.
Proposed Agrovoc treated fungi;
Publication Type Journal
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