- About
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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.
Search results
Showing 151 to 160 of 1033 (0.017 seconds)| 151 |
Reasons for Shortfall in Response to Selection for Egg Production in Laying HensShalev, B. A. January 1977 (has links)
No description available.
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| 152 |
Sympathomimetic amines and hypoxia :- a study of some aspects of their interaction on the cardiovascular system of the dogSwanton, J. G. January 1972 (has links)
No description available.
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| 153 |
Sustainable management of Mytilus edulis seed resources in Northern IrelandMcMinn, Carrie Louise January 2008 (has links)
The bottom mussel industry in Northern Ireland is threatened by a number of issues arising due to overfishing and variable settlement success of mussel seed. Investigations on the Skullmartin mussel seed bed showed ~gative impacts of dredging. However, as Skullmartin is a sink: for mussel larvae, fishing ofthe bed is likely to be sustainable as long as the source ofthe larvae is maintained. The biodiversity of Skullmartin was adversely affected by dredging. Species richness and diversity decreased after dredging. However, these effects were short-lived, with species richness recovering once dredging had ceased. The transport ofstarfish from seed. bed to relaying site is a problem facing all bottom mussel growers. The mostefficient method to reduce the transport of starfish is to submerge the contents ofthe hold with freshwater. This led to 100 % mortality of starfish after 12 hours. Desiccation ofstarfish, which is used in the 1'.Torthern Ireland industry, was found to be inefficient as it required 48 hours to cause 100 % mortality, with . large mussel mortality also occurring after this time. As mussel seed is a limited resource it is imperative that it is managed efficiently. Relaying trials found that although meat content and shell length are adversely affected by an increasing relaying density, it is the marketable yield which is most affected, ,with a density of75 tha-l exceeding the carrying capacity of the study site. Spat collectors, were examined as a sustainable source ofmussel seed. Peaks in settlement appeared in the summer and Belfast Lough was found to have a significantly larger settlement than Carlingford Lough due to the larger coverage of licensed mussel relaying plot in Belfast Lough which can directly attribute to the larval supply in the Lough.
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| 154 |
A study of some genotype x environment interactions in pig productionThorpe, William January 1976 (has links)
No description available.
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| 155 |
Geochemical reconnaissance in relation to copper deficiency in livestock in the Southern Pennines and DevonFletcher, William Kenneth January 1968 (has links)
No description available.
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| 156 |
Normal growth of the pulmonary circulation in the pig and the effect of aorto-pulmonary shunts in immature animals : a structural and functional studyRendas, Antonio Manuel Bensabat January 1977 (has links)
No description available.
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| 157 |
The Study of Internal Air Flows and The Design of Ventilation Systems for Livestock BuildingsRandall, J. M. January 1978 (has links)
No description available.
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| 158 |
Germinal Centres : Their Formation and Role in the Immunological Response of the BirdHenderson, D. C. January 1975 (has links)
No description available.
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| 159 |
Biochemical Aspects of Exercise in the HorseAnderson, M. G. January 1973 (has links)
No description available.
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| 160 |
Contagious Respiratory Disease in DogsThompson, H. January 1974 (has links)
No description available.
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