Document Detail

Food intake of the laying hen following crop loads of maize oil and other nutrients.
MedLine Citation:
PMID:  4005638     Owner:  NLM     Status:  MEDLINE    
The metabolisable energy (ME) of the diet of laying hens at an ambient temperature (Ta) of 20 degrees C was abruptly changed from 10.9 MJ/kg to 12.9 MJ/kg, or vice versa. Food intake during the next 14 d was significantly reduced by the low ME diet and was increased by the high ME diet, that is, the expected compensatory changes in food intake did not occur. Laying hens given the same change of diet as above but kept at 32 degrees C did not show any change in food intake within 14 d. Thus ME intake increased with the high ME diet and decreased with the low ME diet. Daily doses of 10 ml maize oil/kg body weight given directly into the crop of laying hens at a Ta of 20 degrees C, resulted in an immediate, significant, reduction of food intake such that total ME intake remained the same as with normal feeding. Daily doses of 3 ml maize oil/kg, given as before, resulted in an immediate, significant, reduction in food intake at a Ta of 20 degrees C but at a Ta of 32 degrees C food intake remained unchanged; consequently daily ME intake increased. Loading the crop with glucose or sucrose, at Ta 20 degrees C, in quantities which provided a similar ME as 3 ml maize oil/kg, reduced food intake but the adjustment was less precise and daily ME intake increased. Loading with glycerol or protein hydrolysate decreased both food and ME intake. Crop loads of starch were as effective as maize oil in bringing about a significant and compensatory reduction of food intake. Similar volumes of water or liquid paraffin placed in the crop did not affect food or ME intake. A similar weight or cellulose placed in the crop reduced food and ME intake.
A H Sykes; B L Beh
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  British poultry science     Volume:  26     ISSN:  0007-1668     ISO Abbreviation:  Br. Poult. Sci.     Publication Date:  1985 Apr 
Date Detail:
Created Date:  1985-07-29     Completed Date:  1985-07-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  15740290R     Medline TA:  Br Poult Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  207-16     Citation Subset:  IM; S    
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MeSH Terms
Body Weight
Cellulose / administration & dosage
Chickens / physiology*
Corn Oil
Crop, Avian / physiology*
Energy Metabolism
Feeding Behavior*
Glucose / administration & dosage
Oils* / administration & dosage
Starch / administration & dosage
Sucrose / administration & dosage
Reg. No./Substance:
0/Oils; 50-99-7/Glucose; 57-50-1/Sucrose; 8001-30-7/Corn Oil; 9004-34-6/Cellulose; 9005-25-8/Starch

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

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