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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.
131

The occurrence of the double-muscled character in beef cattle

Smith, Walter Henry January 2011 (has links)
Typescript, etc. / Digitized by Kansas State University Libraries
132

A study of the sugar content of the blood of dairy cattle

Hodgson, Ralph Edward January 2011 (has links)
Typescript, etc. / Digitized by Kansas State University Libraries
133

Determining the subject matter content of an adult education program for the improvement of the beef cattle industry of Trego County

Brown, Joseph Oscar January 1942 (has links)
Typescript, etc.
134

The effects of vitamin E and selenium on defence mechanisms of the bovine mammary gland

Ndiweni, Nomathemba January 1991 (has links)
No description available.
135

The effect of recombinant bovine interferon on innate immune mechanisms associated with bovine herpes 1 infection

Turner, Justin John January 1990 (has links)
No description available.
136

Modelling the spread and maintenance of foot-and-mouth disease in a dairy herd

Hutber, Marcus January 1996 (has links)
No description available.
137

Development of polymorphic molecular markers for bovine gene mapping and selection

Song, Youqiang January 1995 (has links)
No description available.
138

Immune response to antigen encapsulated in biodegradable microspheres

Kavanagh, Owen Vincent January 2001 (has links)
No description available.
139

Ventilation of livestock buildings and ammonia emissions

Demmers, T. G. M. January 1997 (has links)
No description available.
140

The origin of cattle from Neolithic to early Bronze Age China

Yu, Chong January 2015 (has links)
Cattle (Bos taurus) - the domesticated form of aurochs (Bos primigenius), was an important animal to humans since prehistoric times, not simply for food, but also provided hide, blood, dung and contributed greatly to the exploitation of dairy products, traction and the organization of human beliefs, cultural attitudes and social complexity. The early exploration of cattle pastoralism pointed to the region of Near East during the 11th and 10th millennia BP and spread southward and westward into neighboring regions soon after its establishment. Zooarchaeological data also provide substantial information on an increasing economic importance of cattle for both meat and milk production in these areas. As an independent locus of origin of food productions, Yangzi and Yellow River Basins of China were thought to be the birth place of many important crops and animals, including rice, millet, pigs and dogs. Wheat, barley, sheep, goats, and horses were introduced, already domesticated, from elsewhere. The possibilities of both indigenous domestication and introduction of cattle were raised; however, the precise circumstances of the earliest phases of cattle domestication remain mysterious due to the absence of convincing biometry approaches for the reconstruction of the original size and shape of the animals. This thesis provides the widest ranging review of Bos (including Bos primigenius, Bos taurus and Bos gaurus) material in China to date, bringing together Bos bone biometrical information from Early Neolithic to Early Bronze Age (10,000 to 3,600 BP), in order to gain a better understanding of the morphological variation of this animal in a biological point of view - the main indicator for tracing domestication (both locally and imported from elsewhere). This study demonstrates that, during Early Neolithic, aurochs were widely hunted base on the relatively large body size compared to the standard animal and later samples. The general size diminution of Bos in the studied region makes its first appearance in upper and middle Yellow River Valley no later than 5,500 BP. Small-sized domesticated cattle was intensively used in central China since 4,500 BP. Domesticated cattle was introduced to China from Near East through Middle Asia. The new custom of milk exploitation, wheat field soil preparation, and the increase demand of sacrificial use may be the pull factors of the expansion and the incorporation of cattle husbandry.

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