Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1995-8-8
pubmed:abstractText
A trial was conducted to investigate the impact of early feed restriction on ascites induced by cold temperatures and the subsequent effect on the whole body and breast muscle growth of broilers. Two feed restriction regimens were tested, consisting of limiting daily feed intake of the birds to 75% of the ME required for normal growth from either 4 to 11 d or from 7 to 14 d. At 21 d, half of the birds were moved to a cold house (17.8 C) to induce ascites. Five birds from each pen were killed for the breast muscle growth, Pectoralis major and Pectoralis minor, and heart and abdominal fat pad weights at 4, 7, 11, 14, 21, 35, and 49 d of the experiment. Birds in the cold house were heavier and had better feed conversion than birds in the control house at 49 d of age. This could be attributed to the high ambient temperatures (27 to 33 C) in the control house. The ad libitum birds had a significantly greater percentage of P. major than the feed-restricted birds. Exposure to cold temperatures caused significantly higher percentage of ascites from 21 to 49 d. Cold temperatures also increased the percentage of total heart and the right ventricle weight relative to total heart weight ratio at 35 and 49 d of age, suggesting that the surviving birds were more likely to develop ascites. Although catch-up growth was observed, the final body weight of feed-restricted birds was not the same as ad libitum birds. Early feed restriction reduced the incidence of ascites, but at the cost of breast muscle growth.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0032-5791
pubmed:author
pubmed:issnType
Print
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
833-43
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Growth of broiler chickens in response to feed restriction regimens to reduce ascites.
pubmed:affiliation
Poultry Science Department, Pennsylvania State University, University Park 16802, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't