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https://www.readbyqxmd.com/read/28716192/impact-of-fmd-outbreak-on-milk-production-and-heifers-growth-on-a-dairy-herd-in-southern-iran
#1
Maryam Ansari-Lari, Mehdi Mohebbi-Fani, Nicholas A Lyons, Nezamaddin Azizi
Foot and mouth disease is endemic in Middle Eastern countries including Iran but its impact is poorly characterized. The present study was conducted to evaluate the impact of FMD outbreak on milk production and heifers' growth in an industrial dairy herd located in Fars province, southern Iran. Data about individual milk production, heifers' growth and total daily milk (sold for manufacturing), its fat and protein content and somatic cell counts were collected from the herd database. Based on the results of the linear mixed models, a significant decline in individual milk production after the outbreak was observed compared with before the outbreak...
September 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28712055/potential-of-casein-as-a-carrier-for-biologically-active-agents
#2
REVIEW
Tomasz Konrad Głąb, Janusz Boratyński
Casein is the collective name for a family of milk proteins. In bovine milk, casein comprises four peptides: αS1, αS2, β, and κ, differing in their amino acid, phosphorus and carbohydrate content but similar in their amphiphilic character. Hydrophilic and hydrophobic regions of casein show block distribution in the protein chain. Casein peptides carry negative charge on their surface as a result of phosphorylation and tend to bind nanoclusters of amorphous calcium phosphate. Due to these properties, in suitable conditions, casein molecules agglomerate into spherical micelles...
August 2017: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/28711241/analysis-of-farmers-willingness-to-participate-in-pasture-grazing-programs-results-from-a-discrete-choice-experiment-with-german-dairy-farmers
#3
M Danne, O Musshoff
Over the last decades, the usage of pasture for grazing of dairy cows has decreased considerably. Pasture grazing programs initiated by dairy companies try to counteract this trend. The present paper investigates farmers' willingness to participate in such grazing programs. A special aim was to quantify the price premiums farmers require for program participation and to identify determinants influencing the premium level. The empirical analysis is based on a discrete choice experiment with 293 German dairy farmers...
July 12, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28703960/antioxidative-properties-of-milk-protein-preparations-fermented-by-polish-strains-of-lactobacillus-helveticus
#4
Katarzyna W Skrzypczak, Waldemar Z Gustaw, Ewa D Jabłońska-Ryś, Monika Michalak-Majewska, Aneta Sławińska, Wojciech P Radzki, Klaudia M Gustaw, Adam D Waśko
BACKGROUND: The increasing significance of food products containing substances with antioxidative activi- ties is currently being observed. This is mainly due to the fact that pathogenic changes underlying some diseases are related to the carcinogenic effects of free radicals. Antioxidative compounds play an important role in supporting and enhancing the body’s defense mechanisms, which is useful in preventing some civili- zation diseases. Unfortunately, it has been already proved that some synthetic antioxidants pose a potential risk in vivo...
April 2017: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28693653/a-methodology-framework-for-weighting-genetic-traits-that-impact-greenhouse-gas-emission-intensities-in-selection-indexes
#5
P R Amer, F S Hely, C D Quinton, A R Cromie
A methodological framework was presented for deriving weightings to be applied in selection indexes to account for the impact genetic change in traits will have on greenhouse gas emissions intensities (EIs). Although the emission component of the breeding goal was defined as the ratio of total emissions relative to a weighted combination of farm outputs, the resulting trait-weighting factors can be applied as linear weightings in a way that augments any existing breeding objective before consideration of EI...
July 11, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28689513/post-weaning-feed-efficiency-decreased-in-progeny-of-higher-milk-yielding-beef-cows
#6
J T Mulliniks, S R Edwards, J D Hobbs, Z D McFarlane, E R Cope
Current trends in the beef industry focus on selecting production traits with the purpose of maximizing calf weaning weight; however, such traits may ultimately decrease overall post-weaning productivity. Therefore, the objective of this study was to evaluate the effects of actual milk yield in mature beef cows on their offspring's dry matter intake (DMI), BW, average daily gain, feed conversion ratio (FCR) and residual feed intake (RFI) during a ~75-day backgrounding feeding trial. A period of 24-h milk production was measured with a modified weigh-suckle-weigh technique using a milking machine...
July 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28677659/effect-of-organic-solvents-on-microalgae-growth-metabolism-and-industrial-bioproduct-extraction-a-review
#7
REVIEW
Krystian Miazek, Lukas Kratky, Radek Sulc, Tomas Jirout, Mario Aguedo, Aurore Richel, Dorothee Goffin
In this review, the effect of organic solvents on microalgae cultures from molecular to industrial scale is presented. Traditional organic solvents and solvents of new generation-ionic liquids (ILs), are considered. Alterations in microalgal cell metabolism and synthesis of target products (pigments, proteins, lipids), as a result of exposure to organic solvents, are summarized. Applications of organic solvents as a carbon source for microalgal growth and production of target molecules are discussed. Possible implementation of various industrial effluents containing organic solvents into microalgal cultivation media, is evaluated...
July 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28668534/short-communication-prediction-of-milk-coagulation-and-acidity-traits-in-mediterranean-buffalo-milk-using-fourier-transform-mid-infrared-spectroscopy
#8
C L Manuelian, G Visentin, C Boselli, G Giangolini, M Cassandro, M De Marchi
Milk coagulation and acidity traits are important factors to inform the cheesemaking process. Those traits have been deeply studied in bovine milk, whereas scarce information is available for buffalo milk. However, the dairy industry is interested in a more rapid analysis method to determine milk coagulation and acidity features rapidly and at a cost-effective, which could be provided by Fourier-transform mid-infrared (FT-MIR) spectroscopy. The aim of this study was to evaluate the potential of FT-MIR to predict coagulation and acidity traits of Mediterranean buffalo milk...
June 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28668530/development-of-a-rapid-mitochondrial-dna-extraction-method-for-species-identification-in-milk-and-milk-products
#9
J Liao, Y F Liu, L Yang, F P Li, A M Sheppard
Isolation of mitochondrial DNA (mtDNA) from milk offers an effective way to monitor aspects of quality control and traceability to ensure food safety. A few methods of DNA isolation from milk have been reported, but many of them are time consuming and expensive. Here, we report a rapid, simple, and efficient method of mtDNA extraction from raw and processed milk (pasteurized, retorted, and UHT milk) to generate substrate for analysis using any PCR analysis platform. Various techniques used for the separation of mitochondria were explored and combined with a sodium dodecyl sulfate method for mtDNA extraction from raw and processed milk...
June 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28664715/the-history-of-arsenical-pesticides-and-health-risks-related-to-the-use-of-agent-blue
#10
Vladimir Bencko, Florence Yan Li Foong
Arsenicals in agriculture. Beginning in the 1970s, the use of arsenic compounds for such purposes as wood preservatives, began to grow. By 1980, in the USA, 70% of arsenic had been consumed for the production of wood preservatives. This practice was later stopped, due to the US Environmental Protection Agency (EPA) ban of the arsenic-and chromium-based wood preservative chromated copper arsenate. In the past, arsenical herbicides containing cacodylic acid as an active ingredient have been used extensively in the USA, from golf courses to cotton fields, and drying-out the plants before harvesting...
June 12, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28653388/factors-associated-with-colostrum-immunoglobulin-g-concentration-in-northern-victorian-dairy-cows
#11
A J Phipps, D S Beggs, A J Murray, P D Mansell, M F Pyman
OBJECTIVES: To determine the proportion of first-milking colostrum samples produced on four northern-Victorian dairy farms that meet industry standards in terms of immunoglobulin G (IgG) concentration and to identify risk factors that affect colostrum quality. METHODS: Colostrum IgG concentrations from 442 dairy cows on four farms were estimated using a Brix refractometer and risk factors for colostrum IgG concentration were determined using multivariable logistic regression...
July 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28652648/role-of-ph-in-the-recovery-of-bovine-milk-oligosaccharides-from-colostrum-whey-permeate-by-nanofiltration
#12
Joshua L Cohen, Daniela Barile, Yan Liu, Juliana M L N de Moura Bell
Milk oligosaccharides are associated with improved health outcomes in infants. Nanofiltration (NF) is used for isolation of bovine milk oligosaccharides (BMO). The study aim was to improve the recovery of BMO from lactose-hydrolyzed colostrum whey permeate. The retention factors of carbohydrates at various pH and transmembrane pressures were determined for a nanofiltration membrane, which was used at pilot scale to purify BMO. Carbohydrates were quantified by liquid chromatography and characterized using nano-LC-Chip-QToF mass spectrometry...
March 2017: International Dairy Journal
https://www.readbyqxmd.com/read/28651380/utilization-of-acid-pre-treated-coconut-dregs-as-a-substrate-for-production-of-detergent-compatible-lipase-by-bacillus-stratosphericus
#13
Nur Bainun Mohd Zin, Busyra Mohamad Yusof, Siti Nurbaya Oslan, Helmi Wasoh, Joo Shun Tan, Arbakariya B Ariff, Murni Halim
In recent years, many efforts have been directed to explore the methods to reduce the production costs of industrial lipase by improving the yield and the use of low-cost agricultural wastes. Coconut dregs, which is a lignocellulosic by-product from coconut oil and milk processing plants, is rich in cellulose (36%) and crude fat (9%). A newly isolated Bacillus stratosphericus has been demonstrated to perform cellulose hydrolysis on coconut dregs producing fermentable sugars. The highest extracellular lipase activity of 140 U/mL has been achieved in submerged fermentation with acid pre-treated coconut dregs...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28648290/milk-originated-bacillus-cereus-sensu-lato-strains-harbouring-bacillus-anthracis-like-plasmids-are-genetically-and-phenotypically-diverse
#14
Marek Bartoszewicz, Paulina Sylwia Marjańska
Bacillus cereus sensu lato is widely distributed in food products, including raw and processed milk. Plasmids often determine bacterial virulence and toxicity, but their role in the evolution of B. cereus sensu lato is only partly known. Here, we observed that nearly 8% of B. cereus sensu lato isolates were positive for pXO1-like plasmids and 12% for pXO2-like plasmids in raw and ultra-heat-treated (UHT) milk from one dairy plant. However, pXO1-like plasmids were significantly more frequent in raw milk, while pXO2-like plasmids were more frequent in processed milk...
October 2017: Food Microbiology
https://www.readbyqxmd.com/read/28647334/test-characteristics-of-milk-amyloid-a-elisa-somatic-cell-count-and-bacteriological-culture-for-detection-of-intramammary-pathogens-that-cause-subclinical-mastitis
#15
S Jaeger, F Virchow, P R Torgerson, M Bischoff, B Biner, S Hartnack, S R Rüegg
Bovine mastitis is an important disease in the dairy industry, causing economic losses as a result of withheld milk and treatment costs. Several studies have suggested milk amyloid A (MAA) as a promising biomarker in the diagnosis of mastitis. In the absence of a gold standard for diagnosis of subclinical mastitis, we estimated the diagnostic test accuracy of a commercial MAA-ELISA, somatic cell count (SCC), and bacteriological culture using Bayesian latent class modeling. We divided intramammary infections into 2 classes: those caused by major pathogens (e...
June 21, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28647330/effect-of-high-hydrostatic-pressure-treated-skim-milk-on-permeate-flux-and-fouling-during-ultrafiltration
#16
Mathilde Leu, Alice Marciniak, Julien Chamberland, Yves Pouliot, Laurent Bazinet, Alain Doyen
Ultrafiltration (UF) is largely used in the dairy industry to generate milk and whey protein concentrate for standardization of milk or production of dairy ingredients. Recently, it was demonstrated that high hydrostatic pressure (HHP) extended the shelf life of milk and improved rennet coagulation and cheese yield. Pressurization also modified casein micelle size distribution and promoted aggregation of whey proteins. These changes are likely to affect UF performance. Consequently, this study will determine the effect of skim milk pressurization (300 and 600 MPa, 5 min) on UF performance in terms of permeate flux decline and fouling...
June 21, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28641511/microbial-lipase-mediated-by-health-beneficial-modification-of-cholesterol-and-flavors-in-food-products-a-review
#17
Ranjana Sharma, Nivedita Sharma
BACKGROUND: The tremendous need of lipase in varied applications in biotechnological increases its economical value in food and allied industries. Lipase has an impressive number of applications viz. enhancements of flavor in food products (Cheese, butter, alcoholic beverages, milk chocolate and diet control food stuffs), detergent industry in removing oil, grease stain, organic chemical processing, textile industry, oleochemical industry, cosmetic industry and also as therapeutic agents in pharmaceutical industries...
June 14, 2017: Recent Patents on Biotechnology
https://www.readbyqxmd.com/read/28637531/minimising-generation-of-acid-whey-during-greek-yoghurt-manufacturing
#18
Gangani Uduwerella, Jayani Chandrapala, Todor Vasiljevic
Greek yoghurt, a popular dairy product, generates large amounts of acid whey as a by-product during manufacturing. Post-processing treatment of this stream presents one of the main concerns for the industry. The objective of this study was to manipulate initial milk total solids content (15, 20 or 23 g/100 g) by addition of milk protein concentrate, thus reducing whey expulsion. Such an adjustment was investigated from the technological standpoint including starter culture performance, chemical and physical properties of manufactured Greek yoghurt and generated acid whey...
June 22, 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28625996/natural-dna-transformation-is-functional-in-lactococcus-lactis-ssp-cremoris-kw2
#19
Blandine David, Amandine Radziejwoski, Frédéric Toussaint, Laetitia Fontaine, Marie Henry de Frahan, Cédric Patout, Sabine van Dillen, Patrick Boyaval, Philippe Horvath, Christophe Fremaux, Pascal Hols
Lactococcus lactis is one of the most commonly used lactic acid bacteria in the dairy industry. Activation of competence for natural DNA transformation in this species would greatly improve the selection of novel strains with desired genetic traits. Here, we investigated the activation of natural transformation in L. lactis ssp. cremoris KW2, a strain of plant origin whose genome encodes the master competence regulator ComX and the complete set of proteins usually required for natural transformation. In the absence of knowledge about competence regulation in this species, we constitutively overproduced ComX in a reporter strain of late competence phase activation and showed, by transcriptomic analyses, a ComX-dependent induction of all key competence genes...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28622786/dairy-cow-disability-weights
#20
Craig S McConnel, Ashleigh A McNeil, Joleen C Hadrich, Jason E Lombard, Franklyn B Garry, Jane Heller
Over the past 175 years, data related to human disease and death have progressed to a summary measure of population health, the Disability-Adjusted Life Year (DALY). As dairies have intensified there has been no equivalent measure of the impact of disease on the productive life and well-being of animals. The development of a disease-adjusted metric requires a consistent set of disability weights that reflect the relative severity of important diseases. The objective of this study was to use an international survey of dairy authorities to derive disability weights for primary disease categories recorded on dairies...
August 1, 2017: Preventive Veterinary Medicine
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