Document Detail


Sheep fed grain prefer foods and solutions that attenuate acidosis.
MedLine Citation:
PMID:  9581916     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We conducted experiments to determine whether lambs fed grain prefer foods and solutions containing sodium bicarbonate (NaHCO3) and lasalocid, compounds capable of attenuating acidosis. In Exp. 1, we determined whether lambs fed barley preferred flavored rabbit pellets (RP) containing NaHCO3 and lasalocid. Lambs in two groups (n = 10/group) were fed increasing amounts of barley on d 1 to 12 (300 to 1,100 g) and again on d 23 to 34 (300 to 1,350 g). After ingesting barley on d 1 to 12, lambs were fed ground RP containing lasalocid and NaHCO3 (i.e., medicated) and flavored with either 2% onion (group 1) or 2% oregano (group 2). During d 23 to 34, lambs were fed unmedicated RP containing NaCl and flavored with either 2% oregano (group 1) or 2% onion (group 2). During preference tests on d 35 to 40, lambs fed grain preferred RP with NaHCO3 to RP with NaCl (151 vs. 96 g; P < .01). In the Exp. 2, we determined whether wheat ingestion affected consumption of aqueous solutions containing NaHCO3. In trial 1, 28 lambs were assigned to four treatments: 1) low-wheat + 2% NaHCO3, 2) high-wheat + 2% NaHCO3, 3) low-wheat + water, and 4) high-wheat + water. For 12 d from 0800 to 0830, lambs in treatments 1 and 3 were fed 300 g of wheat and lambs in treatments 2 and 4 were fed up to 1,300 g of wheat; fluids (NaHCO3 and water) were then offered from 0930 to 1230 daily. Lambs drank more NaHCO3 on the high- than on the low-wheat diet (1,332 vs 890 g; P = .03); water consumption was similar for lambs on the high- and low-wheat diets (1,675 vs 1,700 g; P > .10). In trial 2, lambs in treatments 3 and 4 were offered a solution containing 1.4% NaCl. For 13 d from 0800 to 0830, lambs in treatments 1 and 3 were fed 500 g of wheat and lambs in treatments 2 and 4 were fed up to 1,700 g of wheat. Lambs had access to fluids from 0800 to 1200 daily. Lambs drank nearly twice as much NaHCO3 solution on the high- than on the low-wheat diet (1,066 vs 572 g), whereas they drank only 1.4 times more NaCl solution on the high- than on the low-wheat diet (888 vs. 634 g; P < .001). Fewer lambs showed signs of acidosis in treatment 2 than in treatment 4 in trials 1 (2 vs 9) and 2 (7 vs 17). Collectively, these results are consistent with the hypothesis that lambs fed grain prefer substances that attenuate acidosis.
Authors:
T S Phy; F D Provenza
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of animal science     Volume:  76     ISSN:  0021-8812     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  1998 Apr 
Date Detail:
Created Date:  1998-06-29     Completed Date:  1998-06-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  954-60     Citation Subset:  IM    
Affiliation:
Department of Rangeland Resources, Utah State University, Logan 84322-5230, USA.
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MeSH Terms
Descriptor/Qualifier:
Acidosis / prevention & control,  veterinary*
Animal Feed*
Animal Nutritional Physiological Phenomena
Animals
Cohort Studies
Dietary Supplements
Drinking / physiology*
Female
Food Preferences / physiology*
Hordeum
Ionophores / administration & dosage,  therapeutic use
Lasalocid / administration & dosage,  therapeutic use
Male
Medicago sativa
Rabbits
Sheep / physiology*
Sheep Diseases / prevention & control*
Sodium Bicarbonate / administration & dosage,  therapeutic use
Time Factors
Triticum
Chemical
Reg. No./Substance:
0/Ionophores; 144-55-8/Sodium Bicarbonate; 25999-31-9/Lasalocid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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