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Dissertations / Theses on the topic 'Grazing ruminants'

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1

Miwa, Masafumi. "Estimation of energy expenditure of grazing ruminants via accelerometry." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225658.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第20433号<br>農博第2218号<br>新制||農||1048(附属図書館)<br>学位論文||H29||N5054(農学部図書室)<br>京都大学大学院農学研究科応用生物科学専攻<br>(主査)教授 廣岡 博之, 教授 久米 新一, 教授 今井 裕<br>学位規則第4条第1項該当
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2

Sendalo, David Stanley Chambo. "Tethering of goats in Tanzania : purpose, and implications with special reference to effects on grazing behaviour and intake." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308105.

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3

Francis, Sally Amanda. "Investigating the role of carbohydrates in the dietary choices of ruminants with an emphasis on dairy cows." Connect to thesis, 2002. http://repository.unimelb.edu.au/10187/2898.

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This thesis investigated the role of carbohydrates in the dietary choices of ruminants with an emphasis on dairy cows. The first two experiments investigated the ability of sheep to select between feeds based on their carbohydrate degradability. A further two indoor experiments using dairy cows were designed to establish whether post-ingestive feedback from rumen fluid propionic acid concentration influenced preference. The final experiment examined the potential of ryegrass bred for high water soluble carbohydrate (WSC) concentrations to increase the long-term (9 days) preferences and intake
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4

Hillam, Jonathan P. "The adhesion of sewage sludge and potentially toxic elements to forage utilised by grazing ruminants." Thesis, De Montfort University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391855.

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5

Rihawi, Safouh. "Grazing of barley stubble in Syria : effects of stocking rate and supplementation on intake of stubble fractions." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336666.

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6

Ducrotoy, Marie Julie. "Livelihoods of Fulani pastoralists and burden of bacterial zoonoses in the Kachia grazing reserve, Nigeria." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/15912.

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The work presented focuses on bacterial zoonoses in northern Nigeria, and more specifically on brucellosis in the Kachia grazing reserve (KGR) - rangeland set-aside by the government to sedentarise Fulani pastoralists. The objectives of the study were to 1) undertake demographic and socioeconomic profiling of the KGR community; 2) review the evidence for brucellosis burden in Nigeria; 3) assess the suitability and performance of brucellosis diagnostic tests selected for use; 4) compare burden of brucellosis across different species (animal and human) and determine Brucella species present in K
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7

Berg, Bjorne Peter. "An evaluation of initial rates of digestion in a strain of alfalfa selected to prevent bloat in grazing ruminants." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0015/NQ48605.pdf.

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8

Manuelian, Fusté Carmen L. "Conditioned aversion to woody crops in small ruminants." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/285562.

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L'objectiu de la tesi va ser avaluar la idoneïtat de l'aversió condicionada (CTA) amb clorur de liti (LiCl), per evitar danys en cultius llenyosos durant el pasturatge de les cobertes vegetals. La CTA és un aprenentatge associatiu pel qual un animal deixa de consumir un aliment gràcies a l'administració d'un agent inductor (LiCl). Actualment, els agricultors no permeten el pasturatge de les cobertes dels cultius llenyosos per l’alta palatabilitat d’aquests. A l’Exp. 1, es va crear CTA a l'olivera (aliment nou) amb una sola dosi de LiCl (200 mg/kg PV) en cabres (n = 10) i ovelles (n = 10). L'a
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9

Gobindram, Mohammad Noor Ehsan Newaz. "Plant secondary compounds in small ruminant feeding in stall-fed and pastoral system in the Mediterranean." Doctoral thesis, Università di Catania, 2015. http://hdl.handle.net/10761/1642.

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The utilization of alternative feed resources such as agro-industrial by-products or rangelands may contribute to reduce carbon footprint and improve sustainability of livestock farming systems.My thesis aimed at investigating how animals can be made to ingest alternative feed resources containing higher amounts of Plant Secondary compounds (PSCs) than usual forages and concentrates. PSCs are present in agroindutrial by products and in the natural vegetation of rangelands in the Mediterranean area. They are often associated with anti-nutritive properties such as reduced palatability and prote
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10

Zumbaugh, III Charles Arthur. "Nutritional strategies for growing cattle in the Southeastern United States." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/101039.

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Cattle operations in the Southeastern United States are primarily cow-calf and stocker based and rely heavily on forage. As such, research regarding supplementation strategies that are specific to both the forage cultivars and management strategies that are common in the region are necessary for accurate nutritional recommendations. Additionally, further research is necessary to develop solutions to cope with the negative effects of fescue toxicosis that are common in the region. Therefore, the objectives of this dissertation are to examine supplementation strategies specific to growing cattle
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11

Mundell, Lauren Rae. "Effects of pre-partum and post-partum bolus injections of trace minerals on performance of beef cows and calves grazing native range." Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/8840.

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Master of Science<br>Department of Animal Sciences and Industry<br>K C Olson<br>Our objective was to evaluate the effects of pre- and post-partum bolus injections of a trace mineral solution on beef cow reproductive performance, body weight (BW) change, and body condition score (BCS) change and on performance of suckling calves. Mature beef cows (n = 460; initial BW = 497 ± 89 kg, initial BCS = 5.4 ± 0.74) were stratified by BCS, parity, and predicted calving date and assigned randomly to 1 of 2 treatments: 1) subcutaneous trace mineral (TM) injection containing 15 mg/mL Cu, 5 mg/mL Se, 10 mg/
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12

Davis, Jeremiah DeLayne. "Remote characterization of locomotion, grazing and drinking behavior in beef cattle using GPS and ruminant temperature dynamics." [Ames, Iowa : Iowa State University], 2007.

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13

ROTA, GRAZIOSI ANDREA. "EVALUATION AND CHARACTERIZATION OF DIETARY STRATEGIES ON ENVIRONMENTAL SUSTAINABILITY OF DAIRY COW MILK PRODUCTION." Doctoral thesis, Università degli Studi di Milano, 2022. http://hdl.handle.net/2434/924352.

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The livestock sector is facing different challenges, and the demand for higher sustainability seems to be one of the most urgent. This PhD project debated, in particular, the environmental impacts related to ruminant nutrition, focusing on dairy cows, since nutrition is bound tightly to two of the most important sources of impact: enteric CH4 emission and land use change (LUC). Enteric CH4 emission from ruminants represents 29-38% of the total (anthropic + natural) emission of this powerful (21 CO2 equivalent) greenhouse gas. The production of CH4 is a physiological process used by ruminants t
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14

Mangad, Ghita. "Spatial modelling of grazing pressure by small ruminants in Bragança Region." Master's thesis, 2019. http://hdl.handle.net/10198/23175.

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Mestrado de dupla diplomação com o Institute Agronomic and Veterinary Hassan II<br>Extensive grazing systems are characterised by low stocking densities, with positive impacts on the landscape, promoting diversity and heterogeneity. In order to manage this type of systems, we have implemented a robust tool which is the evaluation of the grazing pressure. This latter can establish the relationship between the ruminant and the pasture. This study is made in Bragança region, situated in the northeast part of Portugal. We used available databases such as: land use and cover (LUC) map of Portugal (
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15

Berg, Bjorn Peter. "An evaluation of initial rates of digestion in a strain of Alfalfa selected to prevent bloat in grazing ruminants." Thesis, 2000. http://hdl.handle.net/2429/11369.

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The practice of grazing alfalfa (Medicago sativa L.) is limited by frothy bloat. Experiments were conducted to verify that AC Grazeland Br (ACG), an alfalfa selected for a low initial rate of digestion (LIRD), has an effect on digestion and bloat that does not differ from a parental standard, Beaver (BVR). The rate of maturity of ACG, measured morphologically (mean stage by stem count, MSC), was greater (P< .05) than BVR in the field and in a controlled environment. ACG stems matured at a rate of 0.09 MSC d"1 compared to 0.06 MSC D ⁻¹ for BVR. Kinetic models of in vivo dry matter disappe
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16

Boukharta, Ouiam Fatiha. "Sustainable management of mountain areas with high environmental value by using GPS technology and geo-processing." Master's thesis, 2019. http://hdl.handle.net/10198/22789.

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Dupla diplomação com o Institut Agronomique et Vétérinaire Hassan II de Rabat<br>The production of small ruminants in North-East Portugal is an extensive activity, mainly based on the exploitation of spontaneous resources, which is strongly conditioned by seasonality. The shepherd directs his herds on daily grazing routes through different types of resources called by San Miguel (2004) "Mosaic of different land uses within the same management unit". Recent advances in Global Positioning System (GPS) technology have led to the development of GPS collars, allowing the monitoring of animal movem
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17

Magalhães, Rui José Ribeiro Ferreira de. "Use of n-alkanes and long-chain alcohols as faecal markers to estimate diet composition on small ruminants grazing/browsing mountain grasslands." Master's thesis, 2018. http://hdl.handle.net/10348/8394.

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Knowledge on the grazing/browsing behaviour, especially diet selection, of the different domestic herbivorous species under diverse vegetation communities is of particular importance for the development and application of appropriate grazing management strategies that increase the efficiency of the utilization of the existing vegetation and, consequently, the sustainability of the animal production system. Plant-wax components, namely alkanes and long-chain alcohols (LCOH), have been suggested as faecal markers to estimate diet selection of different ruminant and non-ruminant species. By combi
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18

Hassidou, Maroua. "Assessment of grazing selectivity in relation to land cover: a comparison between sheep and goats." Master's thesis, 2016. http://hdl.handle.net/10198/13149.

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Portugal’s Northeast production of sheep and goats are based on the exploitation of landscape by-products such as spontaneous native vegetation and agriculture leftovers. Shepherds tend the flocks throughout grazing itineraries every day, crossing a mosaic of patches of varied land uses. During the journey, the shepherd acts together with the sheep and goats to select each patch in creating an ordered sequence of land uses. The focus of the research is on the land-use composition of the grazing itineraries; determinate how they depend on the patterns of the landscape mosaic. It is utilized a
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19

Bouerjilat, Hamza. "Pattern and function of woody features on the grazing itineraries of Terra Fria, Trás–os–Montes – Portugal." Master's thesis, 2016. http://hdl.handle.net/10198/13151.

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The trees, hedgerows and woods are current configuration of the tree network in several ecological regions of the world. In Trás–os–Montes region, Northeast of Portugal, they are a traditional component of Terra fria landscape and they could be seen in several forms: scatter trees, fencerows, small woodlots, riparian buffer strips, among others. The extensive livestock systems in this region are based on a set of circuits across the landscape. In this practice, flocks interacts with these structures using them for different functions inducing an influence on the itineraries. Our purpose will b
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20

Huang, Kanchuan. "Ruminant grazing monitor." 1989. http://hdl.handle.net/2097/23734.

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