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Rozprawy doktorskie na temat „Dairy or beef production”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Wang, Dong. "Accessing the potential of dairy-beef production from dairy enterprises in China and the impacts of dairy-beef production on supply, demand and international trade." Thesis, The University of Sydney, 2007. https://hdl.handle.net/2123/28143.

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The rapid expansion of China’s dairy herd in recent years, with a primary objective of increasing milk production, has given rise to speculation on the potential beef production from this Chinese black and white herd. This study examines whether or not economic incentives exist for dairy and beef producers in China to adopt dairy—beef production and the impact of dairy-beef production on Chinese beef supply, demand and international trade.

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Busato, André. "The epidemiology of production diseases in Swiss dairy and beef cattle herds /." Bern : [s.n.], 2000. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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Nin-Velez, Alexandra Irma. "Genetic and Maternal Factors Underlying Early Milk Production and Their Influence on Calf Health." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99957.

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The quality of early milk produced by dams is affected by various factors (i.e. breed, age, parity, environment, nutrition, management). The impact of these factors on the quality of milk then have subsequent effects on calf health and development. Producers are responsible for following guidelines in order to ensure that they feed calves optimal quality milk in order to produce a healthy animal. They can also regulate factors such as environment and nutrition of the dam in order to produce better quality early milk. However, even after maximizing these factors there is still high mortality ra

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zu, Ermgassen Erasmus Klaus Helge Justus. "Strategies for sustainable livestock production in Brazil and the European Union." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/274541.

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Livestock provide as much as one-third of all protein consumed by humans, but have a disproportionate and growing environmental impact. Livestock production occupies 50-75% of agricultural land, contributes 15% of anthropogenic greenhouse gas emissions, and drives agricultural expansion in the tropics through the global trade in animal feed. This thesis therefore evaluates two strategies for shrinking the environmental impact of the livestock sector. First, I evaluate the potential for food losses (i.e. foods which were intended for human consumption, but which ultimately are not directly eate

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5

Trevisan, Fabio. "Comparison of lipid profile and some physico-chemical properties of beef from Spain and Netherlands with beef from national production with different genetic background (dairy and crossbred beef)." Master's thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2013. http://hdl.handle.net/10400.5/6756.

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Dissertação de Mestrado em Segurança Alimentar<br>Some physic-chemical properties and lipid profile of beef from two origins (Holland and Spain) were compared with beef from national production of both dairy and crossbred beef backgrounds. In comparison, we can find four different groups: two groups of animals from Spain and Holland; n=10 animals per group) and two groups from national production (dairy and beef production systems; n=10 for animals per origin). Animals used in the study were all males of 8-12 months old. In study we can find two different genetics, the Holstein breed (Holland

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6

Sánchez, Ramírez José Manuel. "INFLUENCE OF SACCHAROMYCES CEREVISIAE ON THE ENVIRONMENTAL EFFICIENCY OF METHANE PRODUCTION IN DAIRY AND BEEF CATTLE: META-ANALYSIS." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2018. http://hdl.handle.net/20.500.11799/94354.

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The use of feed additives (e.g. yeasts products) for reduction of ruminants’ methane (CH4) production has drawn the attention of cattle nutritionists and environmentalists. Although there are many relevant studies on this topic, but the obtained results for dairy and beef cattle are contradictory. Therefore, the objective of the present study is to examine the effect of yeast (Saccharomyces cerevisiae) on reduction of CH4 production in dairy and beef cattle using meta-analytic methods. After compilation of relevant articles published between 1990 and 2016 and applying exclusion and inclu

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7

Nqeno, Noluvuyo. "Reproductive performance of cows in sweet and sour veld types under communal production systems in the Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2008. http://hdl.handle.net/10353/141.

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The objective of the study was to evaluate cow reproductive performance in the sweetveld and sourveld communal grazing areas of the Eastern Cape Province, South Africa. In the first experiment, farmer perceptions were obtained using participatory rural appraisals. Farmers ranked lack of fences, tick-borne diseases, poor animal condition during winter and poor breeding practices, respectively as major constraints limiting cattle production in the Eastern Cape. Cattle, sheep and goats, in that order, were ranked as the most important livestock species and were mainly kept for meat, cash and cere

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8

Mpouam, Serge Eugene [Verfasser]. "Determinants of resource use and use efficiency in urban and peri-urban dairy, beef cattle and pig production units in Ouagadougou, Burkina Faso (West Africa) / Serge Eugene Mpouam." Kassel : Universitätsbibliothek Kassel, 2020. http://d-nb.info/1217036598/34.

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9

Thomas, Craig W. "Current practices and future possibilities of performance recording extensively-grazed commercial beef herds in New Zealand." Diss., Lincoln University, 2008. http://hdl.handle.net/10182/844.

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There is little evidence that the productivity of New Zealand beef herds has improved over time. Data from the NZ Meat and Wool Board’s Economic Service (2006) suggest that the average national calving percentage has declined over the last two decades. During the same period cattle carcass weights have increased but so too has the average cow live-weight which has resulted in increased maintenance costs of the cow herds. It is unclear whether production efficiency in the industry has improved or declined over time. The aim of this research was to develop means of improving productivity in

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10

Fish, Ronald Dean. "Estrus Synchronization of Beef and Dairy Cows." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/217055.

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An estrus synchronization trial was conducted to determine the efficacy of adding an injection of gonadotropin releasing hormone (GnRH) at initiation of the controlled intravaginal drug releasing device (CIDR®) progesterone synchronization protocol in heifers. Nulliparous (n=121) beef heifers were randomly assigned to one of two treatment groups. All heifers received a CIDR® implant at the initiation of the breeding season. Half of the heifers (Select Synch) received an injection of GnRH. Heifers in the Select Synch treatment group had a lower numerical response (76.7% versus 88.3%) to treatme

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11

Cesaro, Giacomo. "Emerging issues in animal husbandry: effects of reduced protein supply in animal farms and methodologies for fatty acid analysis in biological samples." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423701.

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Aim of this thesis was to explore the effects of suboptimal N supplies on animals of different species on production performances to achieve an effective reduction of N excretion avoiding, or limiting, the economic losses due to impairment of performance or reduced quality of products. As aside different methods of fatty acid analysis were evaluated to identify an accurate and repeatable methodology of extraction of fatty acids that prevents isomerisation of PUFA and conjugated linoleic acid. All the contributions of this thesis have been published or submitted to international peer reviewed j

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12

Nguyen, Thi Tuyet Hanh. "Analyse de cycle de vie de la production bovine : exploration de pratiques et de changements de système pour réduire les impacts environnementaux." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2012. http://tel.archives-ouvertes.fr/tel-00844398.

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Cette thèse porte sur l'étude des impacts environnementaux de systèmes de production de bovins. Le premier objectif était d'analyser et de comparer les impacts environnementaux de systèmes de production de viande et de lait par analyse de cycle de vie (ACV) attributionnelle. Les effets de pratiques d'atténuation de ces impacts ont été évalués pour les systèmes de production de viande. Le second objectif était un développement méthodologique afin d'explorer les conséquences possibles d'une préférence accrue pour un lait produit à base d'herbe, par ACV conséquentielle. Dans un système de product

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13

Ravaglia, Marco, Justin Dinh, Michelle Frandsen, and Alyssa Garcia. "Dairy Processing Plant Production." Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/144925.

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14

Nguyen, Thi Tuyet Hanh. "Analyse de cycle de vie de la production bovine : exploration de pratiques et de changements de système pour réduire les impacts environnementaux." Electronic Thesis or Diss., Clermont-Ferrand 2, 2012. http://www.theses.fr/2012CLF22328.

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Cette thèse porte sur l’étude des impacts environnementaux de systèmes de production de bovins. Le premier objectif était d’analyser et de comparer les impacts environnementaux de systèmes de production de viande et de lait par analyse de cycle de vie (ACV) attributionnelle. Les effets de pratiques d’atténuation de ces impacts ont été évalués pour les systèmes de production de viande. Le second objectif était un développement méthodologique afin d’explorer les conséquences possibles d’une préférence accrue pour un lait produit à base d’herbe, par ACV conséquentielle. Dans un système de product

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15

Popp, Jan D. "Beef production on alfalfa-grass pastures." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq23911.pdf.

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16

Hardie, Amanda Jane Rosalee. "Strategic modelling in dairy production." Thesis, University of Exeter, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296230.

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17

Wang, Junqin. "Enteric methane emissions from dairy and beef cattle: a meta-analysis." Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18177.

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Master of Science<br>Department of Biological and Agricultural Engineering<br>Zifei Liu<br>This study reviewed state-of-the-art cattle enteric methane (CH4) emissions with three reported measuring units: g/head/d, g/kg DMI (dry matter intake), and %GEI (gross energy intake). Cattle emissions studies included in this meta-analysis were reported from 1995 to 2013. Fifty-five published studies were analyzed with specific objectives: (1) to gain basic information regarding magnitudes and distributions of enteric CH4 emission rates with various units, regions, cattle types and feed situations; (2)

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18

Hubbard, Allen Stewart. "AGRONOMIC PERFORMANCE AND BEEF CATTLE GRAZING PREFERENCE OF THREE PRAIRIE BROMEGRASSES." MSSTATE, 2008. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11052007-150336/.

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Prairie bromegrass is a cool-season perennial bunchgrass with potential as a valuable forage crop in the southeastern USA. The objective of this study was to compare dry matter production, persistence, nutritive value, and beef cattle grazing preference of two experimental lines and a commercial species (cv. Matua) of prairie bromegrass. Plots were established in a randomized complete block design with four replications. When each plot accumulated at least 20 cm of growth, plots were grazed with Hereford x Angus steers at a stocking rate of 8400 kg/ha until the first plot was grazed down to 7

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19

Flanagan, Andrea L. "Livestock and dairy producers' knowledge of quality assurance issues." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4517.

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Thesis (M.S.)--West Virginia University, 2006.<br>Title from document title page. Document formatted into pages; contains ix, 106 p. Vita. Includes abstract. Includes bibliographical references (p. 77-81).

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20

Hedlund, Louise. "Personality and production in dairy cows." Thesis, Linköpings universitet, Zoologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96450.

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Variation in animal personality, in other words, behavioural responses consistent within individuals over time and/or across contexts, is predicted to be related to life-history traits, such as growth rate and investment in reproduction. How this translates into relationships between personality and milk production in dairy cows is however scarcely investigated and previous studies are showing contradicting results. To further investigate this relationship, individual consistencies in behaviour were related to milk production in two breeds of dairy cows (Swedish red and white cattle, SRB, and

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21

Wan, Hassan W. E. "Factors affecting dairy production in Malaysia." Thesis, University of Reading, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371851.

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22

Ricci, Patricia. "Greenhouse gas emissions from contrasting beef production systems." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9370.

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Agriculture has been reported to contribute a significant amount of greenhouse gases to the atmosphere among other anthropogenic activities. With still more than 870 million people in the world suffering from under-nutrition and a growing global food demand, it is relevant to study ways for mitigating the environmental impact of food production. The objective of this work was to identify gaps in the knowledge regarding the main factors affecting greenhouse gas (GHG) emissions from beef farming systems, to reduce the uncertainty on carbon footprint predictions, and to study the relative importa

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23

Ruviaro, Clandio Favarini. "Life cycle assessment in beef production in Brazil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/67543.

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O Brasil é o segundo maior produtor de carne do mundo e produziu 7,5 milhões de toneladas de equivalente carcaça em 2011. O sistema de produção está baseado na utilização de pastagens, apresentando um variável índice de produtividade e tecnológico que incrementam a produção de carne bovina. A demanda mundial e, um consumidor mais consciente e atento à qualidade e segurança da diversidade de produtos disponíveis no mercado, tem contribuído para o estabelecimento de critérios sustentáveis de produção de alimentos e insumos. Neste contexto, este estudo descreve o resultado de uma pesquisa da lite

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24

Bakhshoodeh, M. "Production efficiency in Iranian intensive dairy farming." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.592099.

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Since the 1990s, the number of intensive dairy farms in Iran has rapidly increased to supply milk to the growing cities. As a result, total production of milk has increased, but scarcities still exist in some regions of the country. Since resources such as feedstuffs are limited, and considerable investment will be required to establish these new farms, the question of production efficiency in Iranian dairy farming seems an important one. Measuring the level of production efficiency, determining the sources of inefficiency, and proposing possible ways of improving the efficiency of the intensi

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25

Hecheimi, Khaled Muhuddine. "Protein feeding for dairy cows." Thesis, Bangor University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239933.

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26

Dos, Santos Alecsandro Rufino. "THE USE OF DIETARY FAT SUPPLEMENTATION ON GROWTH,REPRODUCTION AND PERFORMANCE CHARACTERISTICS OF REPLACEMENT BEEF HEIFERS." MSSTATE, 2006. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11102006-002700/.

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The purpose of these studies was to evaluate the effects of a dietary fat supplementation on growth, reproduction and performance characteristics of replacement beef heifers reared in different management systems (pasture and dry lot conditions). The objectives were (1) to quantify changes in body composition traits and growth performance of replacement beef heifers fed different levels of fat in the supplemented diet,(2) to determine the reproductive performance of heifers supplemented with dietary fat in either a ryegrass pasture system or a dry lot system, and (3) to determine the value of

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27

Svinurai, Walter. "Manure production and nutrient management in pasture-based dairy production systems." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/475.

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Manure production and nutrient management in pasture-based dairy production systems by Walter Svinurai The effect of dietary treatments on nutrient excretion was determined and an attempt to improving the retention of excreted nitrogen in stored manure using Aloe ferox leaf gel (AFLG) and pine bark was conducted at a pasture-based dairy farm. The animal mass-balance method was used to determine nutrient excretion by cows fed on three dietary treatments, Lolium perrene-based treatment (LP), Lolium multiforium-based treatment (LM) and Lolium perenne- Trifolium repens -based treatment (LTF). In s

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28

Williams, Jennifer Mae. "More Plants, Less Animals| Reducing Beef and Dairy Consumption as a Water Conservation Choice." Thesis, Northern Arizona University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10641069.

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<p> The purpose of this study was to develop a better understanding of water-conscious residents’ thought processes that may lead to behavioral and attitudinal changes when introduced to information that increased their awareness of the amount of water used by the beef and dairy industry in Arizona. A total liberation framework rooted in critical animal studies provided the theoretical foundation for explaining how speciesism and carnism support the power structures of the animal industrial complex and how cognitive dissonance theory may affect future efforts toward engaging more people

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29

McGinley, Susan. "From Conception to Consumer: A Comprehensive Beef Production Program." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/622257.

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30

Sutarno. "Candidate gene markers for production traits in beef cattle." Thesis, Sutarno, (1998) Candidate gene markers for production traits in beef cattle. PhD thesis, Murdoch University, 1998. https://researchrepository.murdoch.edu.au/id/eprint/53181/.

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In this study, two candidate gene markers, bovine growth hormone gene and mitochondrial DNA, were characterized using PCR-RFLP (Polymerase Chain Reaction - Restriction Fragment Length Polymorphism) analysis. Previous studies on variation in the growth hormone gene have contributed to our understanding of the relationship between this gene and milk production in dairy cattle, but not for production traits in beef cattle. In mitochondrial DNA, variation has also been demonstrated mostly in dairy cattle, and associated with variation in milk production. The major aims of my study, therefore, were

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31

Chen, Gang. "Essays on using weather derivatives in dairy production." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1125587466.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xi, 90 p.; also includes graphics (some col.). Includes bibliographical references (p. 88-90). Available online via OhioLINK's ETD Center

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32

Gonzalez, Esquivel Carlos Ernesto. "Evaluation of suitability in dairy cattle production systems." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286689.

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Chiy, Paul Chu. "Sodium supply for pasture and dairy cow production." Thesis, Bangor University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.331954.

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34

Alvfors, Oskar, and Fredrik Björelind. "Optimization of Production Scheduling in the Dairy Industry." Thesis, KTH, Optimeringslära och systemteori, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170175.

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This thesis presents a case study of mathematical production scheduling optimization applied on Arla Foods AB’s production of dairy products. The scheduling was performed as a possible remedy for problems caused by overcrowded finished goods warehouse. Based on the scheduling, conclusions were made on whether the existing two-shift production is sufficient or if an additional night shift should be introduced. In parallel, an empirical and theoretical analysis on the perceived effects of night shift work on employees was conducted. For the optimization, mixed integer programming was used to mod

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35

Davis, Michael Patrick Kerley Monty Stephen. "Influence of diet, production traits, blood hormones and metabolites, and mitochondrial complex protein concentrations on residual feed intake in beef cattle." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/7034.

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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 26, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Monty Kerley. Vita. Includes bibliographical references.

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36

Bayemi, Pougue Henri Dieudonne. "Improving the management of dairy production systems in Cameroon." Thesis, Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-05252009-225140.

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Hennessy, D. "Manipulation of grass supply to meet the feed demand of beef cattle and dairy cows." Thesis, Queen's University Belfast, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426726.

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Olofsson, Jan. "Feed availability and its effects on intake, production and behaviour in dairy cows /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5752-1.pdf.

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Benedict, Katherine A. "Modelling applications to pasture-based beef production in Atlantic Canada." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ49312.pdf.

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Catrileo, Adrian R. "Beef production systems from grassland-arable farms in southern Chile." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278077.

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41

Black, Danielle Nicole. "Management Considerations for Successful Technology Implementation in Beef Production Systems." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27713.

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Two experiments were conducted to evaluate management strategies that foster successful implementation of technology in beef production systems. In experiment 1, cow reproductive performance, BW, and serum concentrations of NEFA in cows and their calves were evaluated in response to moving cow-calf pairs from summer pastures into confinement feeding for a 10 d period of estrus synchronization and breeding. Reproductive performance was not impacted but calf BW were reduced in confined calves. In experiment 2, effects of moderate and aggressive implant strategies were evaluated in steers with va

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42

Abell, Kaitlynn M. "Predictive analytics and data management in beef cattle production medicine." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/35418.

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Doctor of Philosophy<br>Department of Diagnostic Medicine/Pathobiology<br>Robert L. Larson<br>Bradley J. White<br>Utilization of data analytics allows for rapid and real-time decision making in the food animal production industry. The objective of my research was to implement and utilize different data analytic strategies in multiple sectors of the beef cattle industry in order to determine management, health, and performance strategies. A retrospective analysis using reproductive and genomic records demonstrated that a bull will sire a larger number of calves in a multiple sire-pasture compa

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43

Berton, Marco. "Environmental footprint of beef production: integrated intensive and extensive systems." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3422770.

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The environmental footprint of the food supply chain has emerged as one of the most important issues in public debate. Livestock systems have an important role in the food supply chain, contributing to nearly 40 percent of the global value of agricultural output. The livestock systems characteristics at regional level depend on the regional eco-climatic conditions and their interactions with the socio-economic features of the regional anthropic society. The output derived from the different livestock systems and its consequences on anthropic and natural systems depend on how all these elements

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44

Margerison, Jean K. "Restricted suckling and nutrition of dairy cattle." Thesis, Bangor University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296323.

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45

Wileman, Ben. "Preharvest Escherichia coli o157:h7 vaccination of beef cattle: industry-wide acceptance through a beef production lifecycle approach." Diss., Kansas State University, 2010. http://hdl.handle.net/2097/4612.

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Doctor of Philosophy<br>Department of Diagnostic Medicine/Pathobiology<br>Daniel U. Thomson<br>Escherichia coli O157:H7 is responsible for over 70,000 cases of human illness every year in the United States. Most cases occur in children under the age of five, the elderly, or other immune-compromised people. A small percentage of these cases will develop a life threatening complication, hemolytic uremic syndrome. Cattle are the reservoir host for E. coli O157:H7 and serve as the main source of contamination of meat products and other food sources. The beef cattle industry is diverse with pro

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Bulale, Abdinasir Ibrahim. "Smallholder dairy production and dairy technology adoption in the mixed farming system in Arsi Highland, Ethiopia /." Berlin : Köster, 2000. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009047143&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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McClain, William Edward. "Phosphorus nutrition in tall fescue from stockpiling to seed production /." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4870.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on September 28, 2007) Vita. Includes bibliographical references.

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Lalman, David Leon. "Influence of early lactation energy balance on postpartum interval, milk production, and metabolic hormone concentration in thin primiparous beef heifers /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9737895.

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Hill, Hester Elizabeth Johanna. "Modelling extensive beef cattle production systems for computerised decision support in South Africa." Diss., Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-02102009-114500.

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Kennedy, Peter C. "The effect of alternative forages on beef production and meat quality." Thesis, Queen's University Belfast, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534719.

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