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The utilization of fat by the growing chickBurdett, Michael Owen January 1955 (has links)
PART I - FOLIC ACID AND FAT TOLERANCE IN THE CHICK
Two practical feeding experiments have been carried out to investigate the supplementary value of folic acid, When added to corn-fishmeal type chick starting rations containing different levels of herring oil.
Growth was depressed when herring oil was added to rations containing sub-optimal amounts of folio acid. The extent to which oil depressed growth with a diet sub-optimal in folio acid was probably dependent on the quality of the oil added to the diet. The addition of 0.36 mg. of folic acid per pound of diet alleviated the folic acid deficiency and counteracted the growth depressant action of the oil.
PART II - SURFACE ACTIVE AGENTS AND FAT IN CHICK NUTRITION
Chicks on a practical starter ration were significantly heavier at the end of 8 weeks when their rations were supplemented with 1 per cent of Tween-80 or 3.3 p.p.m. of procaine penicillin. The addition of 0.25 per cent Tween-80 to rations containing either 2.5 or 5.0 per cent herring oil failed to produce a growth response. Tween-80 enhanced the utilization of either 5 per cent cottonseed oil and tallow for growth promotion at 8 weeks but not at 4 weeks.
Chicks were fed to 9 weeks of age on a series of rations each with and without the addition of 0.2 per cent of Santomerse-80. The addition of Santomerse-80 or procaine penicillin singly or in combination improved the growth rate of the chicks. The addition of Santomerse-80 did not further stimulate the growth of chicks receiving rations containing both herring oil and procaine penicillin. No significant effect on the rate of growth was observed as a result of replacing penicillin with aureomycin or replacing herring oil with tallow.
When chicks were fed to 4 or 5 weeks on a folic acid deficient corn-fishmeal type of ration, Tween-80 did not alleviate folio acid deficiency whereas Santomerse-80, aureomycin or penicillin did. Tween-80 in the presence of 5 per cent cottonseed oil further aggravated folio acid deficiency. Santomerse-80, when fed in combination with folic acid, increased the growth rate of chicks over that obtained with the combination of Tween-80 and folic acid.
Lecithin spared folic acid when the rations did not contain additional oil. In the presence of the additional oil, lecithin aggravated folic acid deficiency. / Land and Food Systems, Faculty of / Graduate
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The efficiency of tropical relevant major genes in a dual purpose layer strain in the subtropical coastal region of South-East AfricaGarces, Alice P.D.J.T. January 2006 (has links)
Thesis (Ph.D (Animal Science))--University of Pretoria, 2000. / Summaries in English.
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Genetic and phenotypic characterization of native fowl populations in South AfricaVan Marle-Koster, Este. January 2001 (has links)
Thesis (Ph. D.)(Animal and Wildlife Sciences)--University of Pretoria, 2001. / Summaries in Afrikaans and English. Includes bibliographical references ( leaves 90-104).
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Growth and protein turnover in skeletal muscle of poultryKang, Chang Won. January 1983 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1983. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Behavioral and productivity traits in chickens as influenced by genetic strains, housing treatments, presence of male and ageBhagwat, Ashok Laxmanrao January 2010 (has links)
Digitized by Kansas Correctional Industries
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Stress and fear responses of laying hens in cage, barn and free range systems /Lu, C.-C., January 2001 (has links) (PDF)
Thesis (M. App. Sc.)--University of Queensland, 2001. / Includes bibliographical references.
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A partial equilibrium model for the South African broiler industryDe Beer, Jeanette. January 2009 (has links)
Thesis (M. Sc. (Agricultural Economics))--University of Pretoria, 2009. / Includes bibliographical references.
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Use of a scald additive to reduce levels of Salmonella during poultry processingTownsend, Julie Carol, January 2006 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2006. / Abstract. Vita. Includes bibliographic references.
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The competitiveness of Canada's poultry processing industryLiu, Hao, January 1900 (has links)
Thesis (M.Sc.). / Title from title page of PDF (viewed 2008/01/30). Written for the Dept. of Agricultural Economics, Macdonald College of McGill University. Includes bibliographical references.
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Live poultry exposure and avian influenza (H5N1) risk perception in Guangzhou, 2006-2007Liao, Qiuyan. January 2008 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2008. / Includes bibliographical references (p. 104-117) Also available in print.
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