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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Impact of different strategies and levels of preferential treatment on different methods of bull dam selection /

Weigel, Daniel J., January 1991 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 66-68). Also available via the Internet.
2

Immunochemical studies of bovine complement

Berman, David Theodore, January 1949 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1949. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
3

A study on selected viral infections of the bovine teat

Olson, Robert O. January 1981 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1981. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
4

R̥gveda meṃ go-tattva Conception of cow in Rigveda /

Pañcolī, Badrīprasāda, January 1976 (has links)
"Raja(staāna)--Viśvavidyālaya kī Pī-eca. Ḍī upādhi ke lie svīkṛta śodha-prabandha." / In Hindi. Includes bibliographical references (p. [291-296]).
5

An economic evaluation of winter-feeding strategies for lactating organic dairy cows utilizing different forage and concentrate feeding systems in Maine /

Clark, Gabriel Willis, January 2009 (has links)
Thesis (M.S.) in Animal Sciences--University of Maine, 2009. / Includes vita. Includes bibliographical references (leaves 45-47).
6

Studies to examine the role of beta-carotene, gonadotropin releasing hormone and reproductive secretions in bovine reproduction

Lee, Chin Nyean. January 1984 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1984. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
7

Reproductive physiology of the bovine I. Observations on fertility following inseminations made at three stages of the same estrus. II. Studies of methods of freezing and thawing bovine spermatozoa /

Aschbacher, Peter William, January 1956 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1956. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Bibliographies: leaves 36-40, 92-103.
8

A study and classification of bovine ovarian abnormalities

Heersche, George January 2010 (has links)
Digitized by Kansas Correctional Industries
9

Speciation of chromium in cow’s milk by solid-phase extraction/dynamic reaction cell inductively coupled plasma mass spectrometry (DRC-ICP-MS)

Ambushe, AA, McCrindle, RI, McCrindle, CME 22 January 2009 (has links)
Chromium can act either as an essential micronutrient or a chemical carcinogen, depending on its oxidation state. Of the two most stable chromium oxidation states, Cr(VI) is a known carcinogen, while Cr(III) is an essential element. Determination of total Cr cannot therefore be used to evaluate food safety of dairy products, as speciation is required for accurate assessment of potential toxicity. In this study, total Cr was determined by DRC-ICP-MS after mineralisation of freeze-dried milk samples. Chromabond NH2 ion-exchange columns were used to separate Cr(VI) from Cr(III). During the separation process, Cr(VI) was selectively adsorbed onto the Chromabond NH2 column. The retained Cr(VI) was subsequently eluted with two column volumes of 2 M HNO3 and diluted to a final volume of 10 mL. After separation, the Cr(VI) was quantified by DRC-ICP-MS, using O2 as the reactive gas, to alleviate polyatomic ion interference. An O2 gas flow rate of 0.85 ml/min and a high-pass rejection parameter q (Rpq) ¼ 0.5, provided the best compromise signal-to-noise ratio. The method was validated through determining the recovery in milk samples spiked with Cr(VI). The recoveries were quantitative and ranged from 96.4 to 99.2%. A whole milk powder reference material (NIST SRM 8435) was used to evaluate the accuracy of the total Cr quantification method. The observed value showed concordance with the certified value. The limits of detection (LOD) were 0.091 and 0.085 mg/L for total Cr and Cr(VI), respectively. These findings are important for the determination of maximum residue levels (MRLs) of Cr(VI) in dairy products.
10

Postpartum reproductive performance in dairy cows under different managemental systems and in cows with induced parturitions : a clinical, microbiological, morphological, hormonal and granulocyte function study /

Kask, Kalle. January 1900 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 5 uppsatser.

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