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Milk industries

Jon Ashley, Yunus Shukor, Roberta D'Aurelio, Linda Trinh, Thomas Lawrence Rodgers, Jeff Temblay, Mike Pleasants, Ibtisam E Tothill
Food recalls due to undeclared allergens or contamination are costly to the food manufacturing industry worldwide. As the industry strives for better manufacturing efficiencies over a diverse range of food products, there is a need for the development of new analytical techniques to improve monitoring the presence of unintended food allergens during the food manufacturing process. In particular, the monitoring of wash samples from cleaning in place systems (CIP), used in the cleaning of food processing equipment, would allow for the effective removal of allergen containing ingredients in between food batches...
January 15, 2018: ACS Sensors
P Martin, H W Barkema, L F Brito, S G Narayana, F Miglior
Mastitis is a disease of major economic importance to the dairy cattle sector because of the high incidence of clinical mastitis and prevalence of subclinical mastitis and, consequently, the costs associated with treatment, production losses, and reduced animal welfare. Disease-recording systems compiling data from a large number of farms are still not widely implemented around the world; thus, selection for mastitis resistance is often based on genetically correlated indicator traits such as somatic cell count (SCC), udder depth, and fore udder attachment...
January 10, 2018: Journal of Dairy Science
S Tao, R M Orellana, X Weng, T N Marins, G E Dahl, J K Bernard
Heat stress reduces cow milk yield and results in a significant economic loss for the dairy industry. During lactation, heat stress lowers milk production by 25 to 40% with half of the decrease in milk synthesis resulting from the reduced feed intake. In vitro studies indicate that primary bovine mammary epithelial cells display greater rates of programmed cell death when exposed to high ambient temperatures, which may lead to a decrease in the total number of mammary epithelial cells in the mammary gland, partially explaining the lower milk production of lactating cows under heat stress...
January 10, 2018: Journal of Dairy Science
K A Franc, R C Krecek, B N Häsler, A M Arenas-Gamboa
BACKGROUND: Brucellosis is an endemic zoonotic disease in most of the developing world that causes devastating losses to the livestock industry and small-scale livestock holders. Infected animals exhibit clinical signs that are of economic significance to stakeholders and include reduced fertility, abortion, poor weight gain, lost draught power, and a substantial decline in milk production. In humans, brucellosis typically manifests as a variety of non-specific clinical signs. Chronicity and recurring febrile conditions, as well as devastating complications in pregnant women are common sequelae...
January 11, 2018: BMC Public Health
Carina Venter, Marion Groetch, Merryn Netting, Rosan Meyer
Food allergy is becoming increasingly common in infants and young children. This paper set out to explain the different factors that should be taken into account during an individualized allergy consultation: Foods to avoid and degree of avoidance, suitable alternatives, self-management skills, co-and cross-reactive allergens and novel allergens alongside the role of the industry in allergen avoidance, importance of nutritional aspects of the diet and the future directions that nutritional guidance make take...
January 8, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Julia Berti, Nelson R Grosso, Héctor Fernandez, María C Pramparo, María F Gayol
BACKGROUND: Anhydrous Milk Fat (AMF) is a valuable ingredient in several industries, but its cholesterol content is a disadvantage because it is associated to several diseases. The objective of this study was to remove the largest amount possible of cholesterol from anhydrous milk fat (AMF), using molecular distillation, and to analyze the sensory properties of the obtained product. AMF was subjected to various molecular distillation arrangements. RESULTS: The first set of experiments involved molecular distillations performed over a range of evaporation temperatures...
January 4, 2018: Journal of the Science of Food and Agriculture
Yan Chen, Hua Ji, Li-Jun Chen, Rong Jiang, Yong-Ning Wu
The safety of milk and dairy products has always been one of the focuses of consumers, the food industry and regulatory agencies. The purpose of this study was to gain insight into the food safety knowledge, attitudes and behavior of dairy plant workers. A cross-sectional survey was performed between May and August 2015 in three dairy plants in Beijing, northern China. A total of 194 dairy plant workers were interviewed to collect information on food safety knowledge, attitudes and self-reported behavior. The 194 dairy plant workers interviewed showed a sufficient level of knowledge (mean score 34 on a scale from 0-58), perfect attitudes (mean score 17 on a scale from 0-18), and perfect behavior (mean score 38 on a scale from 8-40)...
January 3, 2018: International Journal of Environmental Research and Public Health
M Villettaz Robichaud, J Rushen, A M de Passillé, E Vasseur, D Haley, K Orsel, D Pellerin
Improving animal welfare on farm can sometimes require substantial financial investments. The Canadian dairy industry recently updated their Code of Practice for the care of dairy animals and created a mandatory on-farm animal care assessment (proAction Animal Care). Motivating dairy farmers to follow the recommendations of the Code of Practice and successfully meet the targets of the on-farm assessment can be enhanced by financial gain associated with improved animal welfare. The aim of the current study was to evaluate the association between meeting or not meeting several criteria from an on-farm animal welfare assessment and the farms' productivity and profitability indicators...
December 28, 2017: Journal of Dairy Science
Gina Cavaliere, Giovanna Trinchese, Nadia Musco, Federico Infascelli, Chiara De Filippo, Vincenzo Mastellone, Valeria Maria Morittu, Pietro Lombardi, Raffaella Tudisco, Micaela Grossi, Vincenzo Monda, Monica I Cutrignelli, Antonietta Messina, Serena Calabrò, Heleena B Moni, Luigi Stradella, Giovanni Messina, Marcellino Monda, Marianna Crispino, Maria Pina Mollica
Excessive energy intake may evoke complex biochemical processes characterized by inflammation, oxidative stress, and impairment of mitochondrial function that represent the main factors underlying noncommunicable diseases. Because cow milk is widely used for human nutrition and in food industry processing, the nutritional quality of milk is of special interest with respect to human health. In our study, we analyzed milk produced by dairy cows fed a diet characterized by a high forage:concentrate ratio (high forage milk, HFM)...
December 28, 2017: Journal of Dairy Science
D L Renaud, T F Duffield, S J LeBlanc, S Ferguson, D B Haley, D F Kelton
The veal industry experiences calf losses during the growing period, which represents a challenge to animal welfare and profitability. Health status at arrival may be an important predictor of calf mortality. The objectives of this prospective cohort study were to describe the health status of calves arriving at a veal farm and determine the risk factors associated with early and late mortality. Using a standardized health scoring system, calves were evaluated immediately at arrival to a commercial milk-fed veal facility in Ontario, Canada...
December 28, 2017: Journal of Dairy Science
Sebastian Mucha, Raphael Mrode, Mike Coffey, Mehmet Kizilaslan, Suzanne Desire, Joanne Conington
Identification of genetic markers that affect economically important traits is of high value from a biological point of view, enabling the targeting of candidate genes and providing practical benefits for the industry such as wide-scale genomic selection. This study is one of the first to investigate the genetic background of economically important traits in dairy goats using the caprine 50K single nucleotide polymorphism (SNP) chip. The aim of the project was to perform a genome-wide association study for milk yield and conformation of udder, teat, and feet and legs...
December 28, 2017: Journal of Dairy Science
M Villettaz Robichaud, J Rushen, A M de Passillé, E Vasseur, D B Haley, D Pellerin
In order for dairy producers to comply with animal welfare recommendations, financial investments may be required. In Canada, a new dairy animal care assessment program is currently being implemented under the proAction Initiative to determine the extent to which certain aspects of the Code of Practice are being followed and to assess the care and well-being of dairy cattle on farm. The aim of the current study was to evaluate the association between meeting the proAction animal-based and the electric trainer placement criteria and certain aspects of productivity and profitability on tiestall dairy farms...
December 28, 2017: Journal of Dairy Science
D L Renaud, T F Duffield, S J LeBlanc, D B Haley, D F Kelton
Antimicrobial use and resistance, in combination with high levels of mortality, are important challenges facing the veal industry. To improve both the economic sustainability of the industry and animal welfare, measures need to be taken to explore and address reasons for these challenges. Health status at arrival may be an important predictor of calf mortality because substantial mortality occurs early in the growing period on veal operations. The objective of this observational case-control study was to identify clinically measurable variables and metabolic indicators associated with mortality in the first 21 d following arrival at a veal facility...
December 28, 2017: Journal of Dairy Science
Joao H C Costa, Tracy A Burnett, Marina A G von Keyserlingk, Maria J Hötzel
Within the last few decades, the North American and European dairy industries have been collecting information about lameness and leg injury prevalence on dairy farms and have tried to develop solutions to mitigate these ailments. Few published articles report the prevalence of lameness and leg lesions in areas outside of those 2 regions, or how alternative housing systems, such as compost-bedded packs, affect the prevalence of these maladies. The objectives of this study were to compare the prevalence of lameness and leg lesions on confined dairies that used freestall, compost-bedded packs, or a combination of these 2 systems in Brazil...
December 20, 2017: Journal of Dairy Science
Eva Kuhn, Lisbeth Meunier-Goddik, Joy G Waite-Cusic
The Pasteurized Milk Ordinance (PMO) mandates milk hauling sanitation and operational practices; however, the use of vague language (i.e., "as needed") and gaps in processes lead to variability in industry practices. Our aim was to characterize industry milk hauling practices and identify areas that may be an unexplained source of contamination in the dairy processing continuum, and communicate this information with industry to cultivate best practices. The objectives of this study were to (1) survey industry hauling sanitation and operation practices in the Pacific Northwest region of the United States, and (2) quantify microbial populations [aerobic plate count (APC), lactic acid bacteria, coliforms] on the internal surfaces of transfer hoses (tanker and receiving bay) to determine their potential contribution to the microbiological quality of raw milk...
December 20, 2017: Journal of Dairy Science
J I Kerslake, P R Amer, P L O'Neill, S L Wong, J R Roche, C V C Phyn
The objective of this study was to determine the economic costs associated with different reasons for cow culling or on-farm mortality in a pasture-based seasonal system. A bioeconomic model was developed to quantify costs associated with the different farmer-recorded reasons and timing of cow wastage. The model accounted for the parity and stage of lactation at which the cows were removed as well as the consequent effect on the replacement rate and average age structure of the herd. The costs and benefits associated with the change were quantified, including animal replacement cost, cull salvage value, milk production loss, and the profitability of altered genetic merit based on industry genetic trends for each parity...
December 13, 2017: Journal of Dairy Science
Maura P Alves, Rafael L Salgado, Monique R Eller, Roberto Sousa Dias, Sérgio Oliveira de Paula, Antonio Fernandes de Carvalho
This work evaluated the expression and activity of a metalloprotease released by Pseudomonas fluorescens 07A in milk. Low relative expression of the protease by the strain was observed after incubation for 12 h at 25°C while the strain was in the logarithmic growth phase. After 24 h, protease production significantly increased (P < 0.05) and remained constant for up to 48 h, a time range during which the strain remained in the stationary phase. Conversely, at refrigeration temperatures, at 12 h the strain was still in the lag phase and expressed the protease at higher levels than when the logarithmic phase was reached...
December 13, 2017: Journal of Dairy Science
Angelica M Gutierrez, Terri D Boylston, Stephanie Clark
Oxidized flavor is a major problem that affects the dairy industry because of its adverse effect on milk acceptability. The objectives of this research were to examine the roles of pro-oxidants and antioxidants on the oxidative stability of whole milk. In the 1st experiment, the effect of light (2300 Lux) and/or cupric sulfate (0, 0.5, and 1.0 mg/kg) as pro-oxidants in milk were investigated during an 11-d refrigerated storage period. The effects of added retinyl palmitate (1.16 mg/L; 2113 IU Vitamin A/L) and tocopheryl acetate (100 mg/kg milk fat; 5...
December 15, 2017: Journal of Food Science
Tong Hu, Yishuang Zhang, Yanhua Cui, Chunyu Zhao, Xu Jiang, Xirong Zhu, Yu Wang, Xiaojun Qu
Streptococcus thermophilus is one of the economically most representatives of lactic acid bacteria, which is widely used as a starter to produce fermented milk products. In this study, 22 S. thermophilus strains were isolated from 26 fermented milk samples. Most isolates showed the ability to ferment a broad range of carbohydrates. Interestingly, eight strains are galactose positive, which is a desirable property in various industrial dairy fermentations. Four different nucleotide sequences were found in the galR-galK intergenic regions...
December 13, 2017: Archives of Microbiology
Saleem Mushtaq, Aabid Manzoor Shah, Aiyatullah Shah, Sajad Ahmad Lone, Aehtesham Hussain, Qazi Parvaiz Hassan, Md Niamat Ali
Bovine mastitis is globally recognized as the most common and costly disease affecting dairy herds. The disease causes huge financial losses to dairy industries by reduced yield and milk quality, deaths and culling of affected cows and also by associated treatment costs. The disease occurs due to invasion of the mammary glands by pathogenic bacteria followed by their multiplication in the milk producing tissues. The most common treatment method available against bovine mastitis is the intra-mammary infusion of antibiotics...
December 9, 2017: Microbial Pathogenesis
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