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See detailMiliter pour et sur Internet. L'adhésion au Parti Pirate belge
Macq, Hadrien ULg

Master's dissertation (2015)

Suède, le 7 juin 2009. Aux élections européennes, un parti politique vient de créer la surprise. Il s’agit du Piratpartiet, fondé à peine trois ans plus tôt et qui vient de récolter sept pourcents des ... [more ▼]

Suède, le 7 juin 2009. Aux élections européennes, un parti politique vient de créer la surprise. Il s’agit du Piratpartiet, fondé à peine trois ans plus tôt et qui vient de récolter sept pourcents des suffrages, obtenant de la sorte un élu au Parlement. Ce parti, créé avant tout pour défendre une autre idée de la propriété intellectuelle, fait rapidement plusieurs dizaines d’émules à travers le monde, y compris en Belgique. La base de leurs revendications est invariable : réforme du droit d’auteur, abolition du brevet sur le vivant et le logiciel, meilleure défense des données privées. Les partis pirates se distinguent également par une utilisation intensive des nouvelles technologies de l’information et de la communication, tant dans leur communication vers l’extérieur que dans leur gestion interne. L’apparition de tels partis sur la scène politique peut être mise en perspective avec deux tendances plus larges au sein des sociétés occidentales. D’une part, Internet s’est petit à petit constitué en tant qu’enjeu politique à part entière, questionnant le système politique sur son mode de gouvernance et son degré de régulation. D’autre part, les pratiques d’engagement se sont progressivement transformées jusqu’à inciter les organisations politiques traditionnelles à s’adapter aux volontés des supposés néo-militants. Dans ce cadre, les partis politiques ont notamment pu s’appuyer sur Internet pour offrir un mode de participation plus souple et plus à même d’attirer de nouveaux adhérents. Cette tendance serait d’ailleurs arrivée à son zénith avec l’émergence de « cyber-partis », basant une grande partie de leur structure sur l’usage des réseaux télématiques. C’est dans cette optique que s’inscrit cette étude, avec pour objectif plus particulier d’interroger les impacts d’Internet sur la dynamique d’adhésion partisane. La question posée est la suivante : quel rôle Internet joue-t-il dans l’adhésion au Parti Pirate belge ? A partir de ce cas, ce sont les perspectives plus larges de l’adhésion aux cyber-partis et des pratiques contemporaines d’engagement qui peuvent être envisagées. De cette manière, il est possible d’apporter certaines réponses au renouvellement des questionnements en science politique engendré par le Web, concernant notamment la participation politique et l’organisation des partis. [less ▲]

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See detailMilk and serum standard reference materials for monitoring organic contaminants in human samples
Schantz; Eppe, Gauthier ULg; Focant, Jean-François ULg et al

in Analytical and Bioanalytical Chemistry (2013), 405

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See detailMilk biomarkers to detect ketosis and negative energy balance using MIR spectrometry
Grelet, Clément ULg; Bastin, Catherine ULg; Gelé, Marine et al

Conference (2015, September 02)

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See detailMilk collection and processing
Scippo, Marie-Louise ULg

Conference (2009, February 23)

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See detailMilk fat globule membrane and buttermilks: from composition to valorization
Vanderghem, Caroline ULg; Bodson, Pascal; Danthine, Sabine ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2010), 14(3), 485-500

Buttermilk, the by-product from butter manufacture, is low cost and available in large quantities but has been considered for many years as invaluable. However, over the last two decades it has gained ... [more ▼]

Buttermilk, the by-product from butter manufacture, is low cost and available in large quantities but has been considered for many years as invaluable. However, over the last two decades it has gained considerable attention due to its specific composition in proteins and polar lipids from the milk fat globule membrane (MFGM). The aim of this review is to take stock of current buttermilk knowledge. Firstly, the milk fat globule membrane composition and structure are described. Secondly, buttermilk and its associated products are defined according to the milk fat making process. Structure and mean composition of these products are summarized from recent dairy research data and related to technological properties, especially the emulsifying properties provided by MFGM components. Finally, new applications are presented, leading to promising valorizations of buttermilk and its derivate products. [less ▲]

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See detailThe milk fat globule membrane MFGM : natural source of functional compounds.
Bodson, Pascal; Vanderghem, Caroline ULg; Danthine, Sabine ULg et al

Poster (2007, October 11)

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See detailMilk in a diet for growing-fattening bulls : Effects on animal performances and on meat characteristics
Gauthier, Sabine; Hornick, Jean-Luc ULg; Clinquart, Antoine ULg et al

in Proceedings of the 45th Annual Meeting of E.A.A.P (1994)

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See detailMILK INGREDIENT ENRICHED IN POLAR LIPIDS AND USES THEREOF
Dalemans, Daniel; Blecker, Christophe ULg; Bodson, Pascal et al

Patent (2010)

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See detailMilk production and marketing in small dairy holders in the Northern area of Vietnam : a case study in Phu Dong
Bui, Thi Nga ULg; Tran Huu, Cuong; Luong Thi Thu et al

in Hanoi University of Agriculture; Francophone Joint University Council (CIUF) (Eds.) Proceedings of Scientific Research Results - Institutional University Cooperation Program 2008-2012 (2013)

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See detailMilk production and Marketing in small holder dairy in the Northern area of Vietnam: A case study in Phu Dong Commune
Bui, Thi Nga ULg; Tran Huu, Cuong; Luong Thi Thu, Ha et al

in Vietnam’s Socio-Economic Development [=VSED]: a Social Science Review (2012), (71/September 2012), 57-69

Dairy cows in small holders in Phu Dong contribute to improve the welfare of farm households. It generates income, provides a highly nutritious food for people, create employment opportunities in the ... [more ▼]

Dairy cows in small holders in Phu Dong contribute to improve the welfare of farm households. It generates income, provides a highly nutritious food for people, create employment opportunities in the society. However, most dairy farmers have a few cows, which will be difficult to improve their lives. They are more vulnerable because milk is easy to be rotten, feed costs are high and increasing; market is fluctuated with shock while gate farm price is almost stable. This study analyzes the situation of milk production and marketing in small holders in Phu Dong. The Heckman two-step procedure is used to estimate factors affecting the decision of market participation and milk marketed volume of dairy households. The main findings are: The pure HF breed dairy cows produced higher productivity but shorter lactation period than that of cross breed cows. The productivity was highest in the pure HF breed medium-size farms and lowest in the cross breed medium-size farms. However, there is not much difference in milk yield per lactation between these breeds. Age of the household, education level, experience in dairy production, distance from milk market and number of milking cows significant impact the probability of the household in milk market participation. Number of milking cows, education level of the households, and non-dairy source financial incomes are important factors affecting sale volume of milk. [less ▲]

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See detailMilk production correlates negatively with plasma levels of pregnancy-associated glycoprotein (PAG) during the early fetal period in high producing dairy cows with live fetuses
Lopez-Gatius, F.; Garbayo, J. M.; Santolaria, P. et al

in Domestic Animal Endocrinology (2007), 32(1), 29-42

This study was designed to establish possible factors affecting plasma pregnancy-associated glycoprotein (PAG) concentrations during early pregnancy in high producing dairy cows with live fetuses. Blood ... [more ▼]

This study was designed to establish possible factors affecting plasma pregnancy-associated glycoprotein (PAG) concentrations during early pregnancy in high producing dairy cows with live fetuses. Blood samples were obtained on days 35, 42, 49, 56 and 63 of gestation from 80 lactating cows in two herds carrying live fetuses. Radioimmunoassay systems were used to determine PAG (RIA-497 and RIA-706) and progesterone concentrations. We evaluated the effects on PAG concentrations of herd, lactation number, sire of fetus, day of gestation, fetus number, plasma progesterone and milk production at each time point established, along with possible paired interactions. Mean milk production per cow approached 41 kg during the study period. PAG concentrations were not affected by herd, lactation number or plasma progesterone concentration. Significant positive effects on PAG concentrations were shown by the gestation day, and the interaction between day of gestation and twin pregnancy. Significant differences between bulls and a significant negative correlation between milk production and PAG values on day 63 of pregnancy were also detected. Proportions of blood samples showing undetectable PAG levels and false negative diagnoses throughout the study period were significantly higher (P < 0.001) using the RIA-497 system (2.5% and 5.3%, respectively) compared to RIA-706 (0% and 0.8%, respectively). Our findings suggest that PAG concentrations during the early fetal period are related to the day of gestation, milk production, number of fetuses and sire of fetus in high producing dairy cows. Under our working conditions, the RIA-706 method was better at detecting plasma PAG molecules than the RIA-497 system. (c) 2005 Elsevier Inc. All rights reserved. [less ▲]

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See detailMilk production of Holsteins under Mediterranean conditions: case of the Tunisian population
Ben Gara, Abderrahmen; Borni, Jemmali; Hammami, Hedi ULg et al

in Rekik, Boulbaba (Ed.) Milk Production (2012)

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See detailMilk production of imported heifers and Tunisian-born Holstein cows
Rekik, Boulbaba; Bouraoui, Rachid; Ben gara, Abderrahmen et al

in American-Eurasian Journal of Agronomy (2009), 1(3), 36-42

Test day (TD) records of milk, fat and protein yields and somatic cell scores (SCS) were studied in Holstein cows in Tunisia. There were 43114, 32923 and 24633 lactation records collected on first, second ... [more ▼]

Test day (TD) records of milk, fat and protein yields and somatic cell scores (SCS) were studied in Holstein cows in Tunisia. There were 43114, 32923 and 24633 lactation records collected on first, second and third parity cows between 1992 and 2004 in 182 herds. Records were of cows born in Tunisia (22000 cows) and those imported from Europe (10830 cows) and North America (850 cows). Variation of total days in milk (DIM) per lactation was studied in function of the herd, calving year x calving season interaction and the origin of the cow. Test-day records were analyzed using a linear model that included calving year x calving season and herd x test-day date interactions, calving season, calving year and origin of the cow. The effective length of lactation was affected by all factors included in the model (p< 0.0001) in all lactations. Test- day milk, protein and fat yields and TD SCS varied (p< 0.01) with management and climatic factors (calving year x calving season and herd x test-day date interactions and year and season of calving). A cow produced 18.8 kg, 0.61 kg and 0.58 kg of milk, fat and protein yields on a daily basis in all lactations, respectively. Average SCS was 2.8 in the three lactations. The origin of the cow was an important (p < 0.05) source of variation for DIM, yields and SCS in all lactations except for first lactation cell scores (p>0.05). Cows born in Tunisia seemed to perform better than imported cows in the first lactation while imported cows showed clearly better performances in later lactations. North American cows produced the highest yields and had the lowest SCS among all cows in the second and third lactations. Imported high producing cows seemed able to adjust to Tunisian management conditions following their first lactation. [less ▲]

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See detailMilk production, milking frequency and rumination time of grazing dairy cows milked by a mobile milking robot.
Lessire, Françoise ULg; Hornick, Jean-Luc ULg; Minet, Julien ULg et al

in Conington, J; Klopcic, M; Lauridsen, C (Eds.) et al Book of abstracts of the 66th Annual meeting of the European Federation of animal science (2015, September 28)

In Europe, analysis of meteorological data shows that the average temperature has increased by ~1°C over the past hundred years (IPCC, 2013). Heat stress periods are thus expected to be more frequent even ... [more ▼]

In Europe, analysis of meteorological data shows that the average temperature has increased by ~1°C over the past hundred years (IPCC, 2013). Heat stress periods are thus expected to be more frequent even in temperate areas. The use of an automatic milking system (AMS) implies the need to stimulate cows’ traffic to the robot, especially with grazing cows. Describing how heat stress influenced cows’ traffic to the robot is the aim of this study. Grazing dairy cows milked by an automatic system (AMS) experienced heat stress (HS) periods, twice during the summer 2013 in July (J) and August (A). The daily temperature humidity index (THI) during these periods were higher than 75. Each HS period was compared with a “normal period”(N), presenting the same number of cows, similar lactation number, days in milk, distance to come back to the robot and an equal access to water. The first HS period of 5 days with a mean THI of 78.4 was chosen in J, and a second that lasted for 6 days in A with a THI value of 77.3. Heat stress periods were cut off with the same duration of days with no stress (N) and mean THI <70. Milk production, milkings and refusals to the robot during HS were compared with N periods. Milkings and refusals were significantly more numerous in HS periods in July (HS: 2.54 ± 0.11 vs N: 2.19 ± 0.08, 1.87 ± 0.20 vs 0.72 ± 0.16) but milk production dropped from 21.8 ±0.6 kg per cow and per day during N periods to 18.9 ± 0.8 kg in HS. In August, MY increased slightly during HS. This could be explained by less high ambient temperatures and decreased distance to walk inducing less energy expenditure. The increase in milkings and refusals to the robot during HS could be linked to water availability nearby the robot and confirmed previous findings (Lessire et al., 2014). [less ▲]

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See detailMilk prolactin response and quarter milk yield after experimental infection with coagulase-negative staphylococci in dairy heifers.
Piccart, K.; Piepers, S.; Verbeke, J. et al

in Journal of dairy science (2015), 98(7), 4593-4600

Coagulase-negative staphylococci (CNS) are the most common bacteria involved in subclinical mastitis in dairy cows. Remarkably, CNS-infected dairy heifers produce more milk than uninfected heifers ... [more ▼]

Coagulase-negative staphylococci (CNS) are the most common bacteria involved in subclinical mastitis in dairy cows. Remarkably, CNS-infected dairy heifers produce more milk than uninfected heifers. Because the lactation hormone prolactin (PRL) is also involved in mammary gland immunity, we investigated the milk PRL response and the mammary quarter milk yield following experimental CNS challenge. Eight healthy Holstein-Friesian heifers in mid-lactation were experimentally infected using a split-udder design with 3 different CNS strains: one Staphylococcus fleurettii (from sawdust bedding) and 2 Staphylococcus chromogenes strains (one isolate from a teat apex, the other isolate from a chronic intramammary infection). Three mammary quarters per heifer were simultaneously inoculated with 1.0x10(6) cfu, whereas the remaining mammary quarter was infused with sterile phosphate-buffered saline, serving as a control. An existing radioimmunoassay was modified, validated, and used to measure PRL frozen-thawed milk at various time points until 78h after challenge. The mean milk PRL level tended to be higher in the CNS-challenged mammary quarters compared with the control mammary quarters (7.56 and 6.85ng/mL, respectively). The increase in PRL over time was significantly greater in the CNS-challenged mammary quarters than in the control mammary quarters. However, no difference was found in the PRL response when comparing each individual CNS strain with the control mammary quarters. The mean mammary quarter milk yield tended to be lower in the CNS-infected mammary quarters than in the control mammary quarters (1.73 and 1.98kg per milking, respectively). The greatest milk loss occurred in the mammary quarters challenged with the intramammary strain of S. chromogenes. Future observational studies are needed to elucidate the relation between PRL, the milk yield, and the inflammatory condition, or infection status, of the mammary gland. [less ▲]

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See detailMilk urea content as influenced by geographical area and season in Wallonia
Meura, Stéphane; Dufrasne, Isabelle ULg; Cabaraux, Jean-François ULg et al

in Permanent and temporary grassland plant, environment and economy; A. De Vliegher and L. Carlier (Eds); Proceedings of 14th symposium of the European Grassland Federation (2007)

Milk urea concentration is routinely determined in commercial dairy farms along with the official milk analyses carried out on milk samples for the dairies by the “Comité du lait”. The milk urea content ... [more ▼]

Milk urea concentration is routinely determined in commercial dairy farms along with the official milk analyses carried out on milk samples for the dairies by the “Comité du lait”. The milk urea content do not modify milk price but can be useful for the farmers for diet calculation, milk urea content being related to the energy-protein ratio in the diet. The aim of this paper was to study the evolution of the milk urea content according to the months and the areas. Milk urea concentration changed according to the months owing to the diet: the summer diets, mainly composed by grass in many farms, were characterized by higher nitrogen content which as result an increase in milk urea concentration. The geographic areas can also influence milk urea concentration due to dietary difference. For example, in the Hesbaye area, beet and cereals are produced while in the Ardennes, grasslands are dominant. The urea content in milk can be an useful measurement for the diet calculations in order to decrease nitrogen waste and to reduce the feed costs. [less ▲]

Detailed reference viewed: 32 (9 ULg)