62,974 research outputs found
Interactions between omega-3 oil supplementation and breed on chest girth of experimental lambs (MxM: Merino x Merino; CxM: Corriedale x Merino; WxC: White Suffolk x Corriedale).
No full textInteractions between omega-3 oil supplementation and breed on chest girth of experimental lambs (MxM: Merino x Merino; CxM: Corriedale x Merino; WxC: White Suffolk x Corriedale).</p
Selection for growth, muscling and fatness alters the maternal performance and intermediary metabolism of Merino ewes
No full textThere is growing interest in selectively breeding Merinos with higher growth and muscling and lower fatness. The effects of selection for these traits on ewe intermediary metabolism, body composition, reproduction and milk production and on lamb birthweight, survival and growth were studied in a series of experiments and analyses.
Ewes with higher genetic propensity for early growth had higher mature weight, reproductive rate, lamb birthweight, ewe milk production and lamb growth rate. Ewes with higher growth also had a higher circulating level of growth hormone during lactation.
Ewes with higher genetic propensity for muscling had a higher reproductive rate and produced lambs that were lighter at birth, but this did not result in lower lamb survival. Ewes with higher muscling maintained a higher condition score which may be at least partly attributed to a lower response to adrenaline at the level of the muscle in these higher muscled ewes. Similarly higher muscled ewes had lower growth hormone concentration in lactation which would result in lower mobilisation of tissues. In addition peripheral tissues were less responsive to insulin in high muscled ewes and blood glucose levels were also higher during the non-breeding state in high muscled ewes.
The genetic fatness of ewes was positively associated with lamb birthweight but only when nutrition was restricted suggesting that ewes with a higher genetic propensity for fatness can buffer lamb birthweight under periods of poor nutrition. Ewes with higher genetic fatness had lower circulating growth hormone and a greater response to insulin providing potential mechanisms for the observed higher fatness. Furthermore, response to adrenaline at the level of liver was greater in ewes with higher fatness suggestive of a higher capacity for gluconeogenesis. The combined results of this work suggest that actively selecting Merino ewes to have higher growth, muscling and fatness is likely to have positive reproduction and therefore economic outcomes
Jointly selecting for fibre diameter and fleece weight: A market-level assessment of the QPLU$ Merino breeding project
No full textThe QPLU$ Merino breeding project began in the early 1990s. The aim of the project was to demonstrate the efficiency of using a selection index to achieve breeding objectives. A number of selection lines were created from three strains of Merino sheep. During the ten-year course of the project, selection of each line was undertaken using an index based on measurements of fleece weight and fibre diameter. Different emphases were placed on each trait in each selected line. This paper estimates the potential aggregate returns of the project to the Australian sheep and wool industries using an equilibrium displacement model.Australian sheep and wool industries, equilibrium displacement model, cross-commodity relationships, R&D evaluation, Livestock Production/Industries, Research and Development/Tech Change/Emerging Technologies, Research Methods/ Statistical Methods,
Age of puberty and conception rates of Hungarian Merino, (Merino x Somali) F1 and (Merino x Barbados Blackbelly) F1 ewes
No full textThe aim of our examination was to detect the puberty of the Hungarian Merino and its hairsheep crossbred ewes, and also to determine their average conception rates after having ram exposed in May and June. Hormon diagnostation was used to evaluate the exact date of the very first ovulation. Ultrasound technique was used for checking the conception rates of ewes. The pregnancy detection was applied after a month of the date of taking off the ram. We evaluated the ages of ewes at puberty. Statistical deviation and standard error were calculated. The results proved the Hungarian Merino x Somali (N=10), ((x ± s) = 173 ± 43) and also the Hungarian Merino x Barbados Blackbelly crossbred genotypes (N=7), ((x ± s) = 186 ± 19) have their puberty much earlier as compared to the fullbred Hungarian Merino ewes (N=10), ((x ± s) = 231 ± 95). We experienced the highest conception rate in the group of the (Hungarian Merino x Somali) F1 ewes after exposing the ram in the „out-of season” period of time
Diseño físico del sistema de comunicaciones de un ayuntamiento
No full textCódigo de proyecto: INF 05047Cristina Merino Bada; director de proyecto: Pilar Moreno DíazCurso 2005-2006Ingeniería InformáticaEscuela Politécnica Superio
Proyecto de urbanización "El Vivero"
No full textCódigo de proyecto: ICA 04221Christian Merino Fernández; Director del proyecto: Laureano GayoCurso 2004-2005Ingeniería de Caminos, Canales y Puertos (ICA)Escuela Politécnica Superio
Proyecto de aliviadero de balsa para regadios de los términos municipales Bañares, Cidamón y San Torcuato (La Rioja)
No full textCódigo de proyecto: ICA 05001David Merino Tena; director de proyecto: Cástor J. García AlarcónCurso 2005-2006Ingeniería de Caminos, Canales y Puertos (ICA)Escuela Politécnica Superio
Estudio acustico de inmisión dentro de espacios públicos de esparcimiento
No full textCódigo de proyecto: LCA 11021Sergio Salcedo Merino; director de proyecto: Javier Morales PérezCurso 2011-2012Ciencias Ambientales (LCA)Escuela Politécnica Superio
Centro de las Artes y la Arquitectura San Lorenzo de el Escorial
No full textPablo Montero Merino ; Director del proyecto: Pablo Sáiz SánchezCurso 2006-2007ArquitecturaEscuela Politécnica Superio
Proyecto de nave industrial para taller de chapa y pintura de automóviles
No full textCódigo proyecto IND 01215Antonio San Deogracias Merino ; tutor académico: Miguel Angel González GilCurso 2001-2002Ingeniería IndustrialEscuela Politécnica Superio
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