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Impact of diet on hill ewe conception, mortality and lamb birth weight [electronic resources] / Niamh Mannion

By: Mannion, Niamh [author].
Material type: Computer fileComputer filePublisher: Galway : Galway-Mayo Institute of Technology, 2019Description: 1 online resource (26 pages) : figures, tables.Content type: text Media type: computer Carrier type: online resourceSubject(s): Galway-Mayo Institute of Technology (2019) -- Dissertations | Mountain sheep -- Feeding and feeds -- Mayo -- Ireland | Hill farming -- Mayo -- IrelandOnline resources: eThesis - click to view Dissertation note: BSc (Hons) in Agriculture and Environmental Management. Galway-Mayo Institute of Technology, 2019 Summary: A study of hill sheep Ovis aries looking at the relationship between the diet of the breeding female during pregnancy and the resultant pregnancy outcome in Mayo Connemara Blackface Mountain ewes. There was no significant differences observed between the scanning or lambing rates of ewes based on their age and diet during pregnancy. Ewe and lamb mortality was not significant. The effects of feeding concentrates at a rate of 0.25kg/day along with ad-lib hay and water was found to significantly increase the birth weights of lambs born to mature ewes (aged three to five years old) when compared with ewes of the same age outwintered on traditional hill grazing (P<0.05). The hogget ewes also benefitted from the addition of concentrates to their diet and semi - improved grazing during their pregnancy when it came to the birth weights of their lambs which were significantly heavier than those that were born to the hoggets that were outwintered on the hill (P<0.001) and were also significantly heavier than the lambs of the mature ewes outwintered on the hill (P<0.001). Sex of the lamb was found to significantly impact the birth weight of the lamb across all groups (P<0.001).
List(s) this item appears in: Theses: Agriculture and Environmental Management
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Theses
eThesis (Browse shelf) Available eThesis - click link above to access eth265179

BSc (Hons) in Agriculture and Environmental Management. Galway-Mayo Institute of Technology, 2019

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A study of hill sheep Ovis aries looking at the relationship between the diet of the breeding female during pregnancy and the resultant pregnancy outcome in Mayo Connemara Blackface Mountain ewes. There was no significant differences observed between the scanning or lambing rates of ewes based on their age and diet during pregnancy. Ewe and lamb mortality was not significant. The effects of feeding concentrates at a rate of 0.25kg/day along with ad-lib hay and water was found to significantly increase the birth weights of lambs born to mature ewes (aged three to five years old) when compared with ewes of the same age outwintered on traditional hill grazing (P<0.05). The hogget ewes also benefitted from the addition of concentrates to their diet and semi - improved grazing during their pregnancy when it came to the birth weights of their lambs which were significantly heavier than those that were born to the hoggets that were outwintered on the hill (P<0.001) and were also significantly heavier than the lambs of the mature ewes outwintered on the hill (P<0.001). Sex of the lamb was found to significantly impact the birth weight of the lamb across all groups (P<0.001).

eThesis Available via GMIT SharePoint and GMIT Library Webpage

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