Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 1181 for “"Egg"”.
-
Cholesterol and egg activation
… germinal vesicle breakdown; however, SR-BI KO eggs, which had accumulated excess cholesterol in vivo, spontaneously activated; they escaped metaphase II (MII) arrest and progressed to pronuclear, metaphase III and anaphase/telophase III stages. Eggs from fertile, wild-type mice were activated …
-
Effect of anti-egg-yolk-diluent sera upon bovine spermatozoa in egg yolk diluent
… was designed to determine if the antigenicity of egg yolk diluter could be eliminated by the addition of specific antibodies. Two virgin heifers were immunized with 20% yolk - 2.1% citrate - 7% glycerol with penicillin and streptomycin. Non-immune serum and immune sera having titers of 1:640 and …
-
Investigating the role of egg-3 by characterizing the egg-3(as40) phenotype in C. elegans
Egg activation is a process whereby a mature oocyte transitions from meiosis to mitosis and changes to a new cellular state that supports embryogenesis. In C. elegans, egg activation is regulated by a complex of proteins which include EGG-3, EGG-4, EGG-5, CHS-1 and MBK-2. EGG-3 is a member of the …
-
Calcium Dynamics Affecting Egg Production, Skeletal Integrity, and Egg Coloration in Ring-necked Pheasants (Phasianus colchicus)
… of this species, which produces 7-15 eggs per clutch. They may renest up to 5 times per breeding season on a diet low in calcium. The first chapter examines egg production in laying hens on 7 different diets from 0.19-4.47% calcium in the absence of calcium loading. Calcium-loaded …
-
Enzymatic degradation of egg yolk cholesterol
… method for the determination cholesterol in egg yolk and processed foods was developed from a method of Kovacs (1990). A sample is heated in a sealed tube with a solution of potassium hydroxide in ethanol containing the internal standard, dihydrocholesterol. The sterols are then isolated by …
-
Bird Bones and a Hatched Egg
A fifty page manuscript of poetry and a critical introduction detailing the poet's aesthetics. Using the idea of the double-image and eroticism, the poet places her work in the category of the surreal. She describes the process of writing poetry born of fragmentary elements as a feminist emergence …
-
Egg Maturation and Fecundity in Etheostoma
The problem of estimating fecundity in darters (Etheostoma and Percina) was discussed and a new definition of fecundity proposed. Estimates of fecundity in four species of Etheostoma was determined by multiplying the number of oocytes (≥0.3 mm) recruited per week times the number of weeks in the …
-
Egg Donation in Germany, A Sociological Study
Abstract Egg donation is a fertility treatment developed in the 1980s to help a woman conceive and have a child with eggs provided by another woman. Germany is one of the few European countries that bans egg donation (German Embryo Protection Act 1991). The thesis provides an in-depth account of …
-
An economic analysis of commercial egg production
… useful in farm management plans by commercial egg producers and those interested in the poultry industry. The study was in two phases. Egg production functions were estimated for flocks with particular combinations of management practices and equipment. Analysis of variance was used to …
-
Clinical Significance of Specific IgE Antibody Levels to Egg White, Ovalbumin and Ovomucoid in Egg Allergic Children Under 24 Months
OBJECTIVES: Egg allergy is one of the most common food allergies in children. Specific IgE antibodies to egg white is associated with the outcome of oral challenge tests, and specific IgE antibodies to ovomucoid have been suggested as prognostic factors of clinical tolerance to heated egg in …
-
Sperm-egg interaction in birds: assays and mechanisms
… since the advent of <i>in vitro</i> sperm-egg interaction systems. Although <i>in vitro </i>systems for studying sperm-egg interaction in chickens have been developed, they have not been characterised and are limited by the availability of material as only one fertilised egg and a few …
-
The structural performance of egg-shaped sludge digesters
Includes bibliographical references.
-
The function and evolution of egg colour in birds
… the diversity of colour exhibited by avian eggs is particularly interesting, because much of this diversity has not been thoroughly explained by either mode of selection. Until recently, a sexual selection mechanism for the evolution of egg colour was not known, and natural selection did not …
-
Evolutionary and proximate constraints on egg size in butterflies
Arthropod egg and thus progeny size is an evolutionary and ecologically significant trait, showing tremendous variation within and across species. The high variation found is caused by a complex set of interacting proximate and evolutionary factors, but despite increasing effort this network is …
-
A zebrafish model to study the schistosome egg granuloma
… host. The disease pathology is caused by the eggs which they produce, and is primarily characterized by the granulomas which form around them. While the granulomas have pathological consequences to the host, they are thought to be essential to facilitate egg expulsion and completion of the …
-
Consumer Egg Preferences and Their Relationship to Federal Standards
Made available in DSpace on 2015-05-12T17:00:26Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6003969.PDF: 6031901 bytes, checksum: fd35fe9894ed4678c9114aabb984af33 (MD5) Previous issue date: 1960
-
Physicochemical Studies of the Yolk Components of Chicken Egg
Made available in DSpace on 2014-12-05T19:36:40Z (GMT). No. of bitstreams: 1 0023359.pdf: 6826124 bytes, checksum: 8f3f4745ef83d4c8a0a6cd2d9c5b5f34 (MD5) Previous issue date: 1957
-
Cracking Common Notions Relating Egg Strength to Impact Orientation
The chicken egg possesses a shell structure that is conventionally thought to be strongest when loaded on its vertical poles, particularly the sharp end, which resembles a structural arch. This notion has influenced educational activities such as the "egg drop challenge", where participants …
-
Gypsy moth egg development: a model of phenological events
A phenological model of gypsy moth egg development is proposed that distinguishes three phases of egg development, prediapause, diapause and postdiapause. A technique of measuring respiration rates of individual eggs was developed and respiration rate was used as a physiological variable to …
Page 1 of 60