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dc.creatorIsenhart, William Bradley
dc.descriptionDue to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to, referencing the URI of the item.en
dc.descriptionIncludes bibliographical references.en
dc.descriptionIssued also on microfiche from Lange Micrographics.en
dc.description.abstractTwenty to twenty-four day old broiler chickens either were sham-operated or had abdominal adipose tissue surgically removed to stimulate tissue reaction by the removal of substantial proportions of adipocytes. An unoperated Control group of birds were analyzed for body composition. At forty-eight days of age abdominal adipose depot samples were excised, fixed, and cell number and size determined in lipectomy and sham birds. Cell growth effects of the treatments were extrapolated from these depot cell characteristics at the beginning of the experiment and at forty-eight days of age. Body composition also was determined. Absolute mass of the abdominal fat removed and the weight of fat removed expressed as a percentage of body weight were significantly different between treatments as planned by experimental design. A replication effect was detected between replicate groups of chicks. No significant differences in live weight, measures of adipocyte size and concentration, or body composition were detected within a replication at the beginning of the experiment. By forty-eight days of age significant treatment effects were detected in abdominal fat mass, fat as a percentage of body weight, number of adipocytes per pad and number of cells per unit body weight. These observations indicated that abdominal fat pad size was reduced by lipectomy and that tissue growth did not fully compensate for adipose removal either by hypertrophy or hyperplasia. Mean adipocyte volume did not increase to compensate for the loss of abdominal adipose tissue mass following surgery. These findings occurred as abdominal adipose tissue substantially increased in mass, mean adipocyte volume and adipocyte number. Extrapolated effects of lipectomy on normal adipose growth were not consistent with current hypotheses of adipose tissue cellular development.en
dc.publisherTexas A&M University
dc.rightsThis thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use.en
dc.subjectfood science and technology.en
dc.subjectMajor food science and technology.en
dc.titleEffects of partial lipectomy on body composition and adipose cellularity in the growing chicken (Gallus domesticus)en
dc.typeThesisen science and technologyen
dc.format.digitalOriginreformatted digitalen

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