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Effect of aflatoxin in growing lambs fed ruminally degradable or escape protein sources.
- Source :
-
Journal of animal science [J Anim Sci] 1994 May; Vol. 72 (5), pp. 1274-81. - Publication Year :
- 1994
-
Abstract
- Thirty-two crossbred (Suffolk x Rambouillet) wether lambs were used to examine the effectiveness of protein source (soybean meal [SBM] or fish meal [FM]) in alleviating decreased performance associated with dietary aflatoxin (AF) in growing lambs. After a 21-d adaptation period to concentrate diets, lambs were assigned to the following dietary treatments: 1) SBM, 0 mg of AF; 2) FM, 0 mg of AF; 3) SBM + 2.5 mg of AF/kg diet; or 4) FM+2.5 mg of AF/kg diet (two lambs/pen; four pens/treatment). Diets were fed 35 d, at which time AF was removed from the diet (except one pen/protein source) and lambs continued on study for an additional 32 d. On d 67, all lambs were killed and necropsied. Average daily gain, feed intake, and gain/feed were similar (P > .10) among lambs fed SBM or FM; however, lambs fed AF had lower (P < .01) feed intakes, daily gain, and gain/feed. Feed intake remained lower (P < .01) after AF was removed from the diet. Aflatoxin elevated (P < .01) aspartate amino transferase and gamma-glutamyl transferase activities and total protein and cholesterol concentrations while decreasing (P < .05) alkaline phosphatase, glucose, cholinesterase, albumin, inorganic phosphorus, iron, and total-iron-binding capacity. Hematocrit, white blood cell count, and prothrombin time increased (P < .01) in lambs fed AF. No AF or protein effects were seen on ruminal VFA, pH, or lymphocyte blastogenesis (P > .10).(ABSTRACT TRUNCATED AT 250 WORDS)
- Subjects :
- Animal Feed
Animals
Chronic Disease
Eating
Fish Products
Male
Mycotoxicosis blood
Mycotoxicosis diet therapy
Mycotoxicosis physiopathology
Sheep
Sheep Diseases blood
Sheep Diseases physiopathology
Glycine max
Weight Gain
Aflatoxins adverse effects
Dietary Proteins therapeutic use
Mycotoxicosis veterinary
Sheep Diseases diet therapy
Subjects
Details
- Language :
- English
- ISSN :
- 0021-8812
- Volume :
- 72
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Journal of animal science
- Publication Type :
- Academic Journal
- Accession number :
- 8056674
- Full Text :
- https://doi.org/10.2527/1994.7251274x