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Cow milk

Mari Saito, Yutaka Kikuchi, Alan Kawarai Lefor, Wakamichi Shimamura
BACKGROUND: Allergen sensitization differs according to countries and regions. Understanding the characteristics of allergen sensitization in one's own country is useful for the treatment of patients with allergic diseases. Recently, Japanese cedar pollen (JCP) sensitization is increasing in young Japanese children. Therefore, we evaluated allergen sensitization patterns in under 60-month-old Japanese recurrent wheezers using multiple allergen tests. METHODS: Allergen tests for 204 Japanese recurrent wheezers between April 2010 and April 2016 were reviewed...
2018: Arerugī, [Allergy]
Samantha K Wall, Olga Wellnitz, Rupert M Bruckmaier, Daniel Schwarz
Intramammary infections induce the initiation of the inflammatory response, resulting in an increase in somatic cell count (SCC) in milk. The SCC includes several different types of cells but does not differentiate between them. On the contrary, the new differential somatic cell count (DSCC) parameter allows for the differentiation between 2 groups of cells: polymorphonuclear neutrophils (PMN) and lymphocytes versus macrophages. Therefore, the aim of this paper was to describe the changes of both DSCC and SCC during mastitis induced by cell wall components from typical mastitis-causing pathogens [lipopolysaccharide (LPS), Escherichia coli; lipoteichoic acid (LTA), Staphylococcus aureus] known to trigger different severities of mastitis...
March 14, 2018: Journal of Dairy Science
M M McCarthy, M W Overton
The objective of this research was to determine the effect of disease misclassification on the estimated effect of metritis on milk production. Misclassification introduces bias that usually results in an underestimation of the association between exposure (disease) and the outcome of interest (milk production). This distorted measure of association results from the comparison of an affected population (some of which may not truly be affected) to a nonaffected population (which often includes affected subjects that are unidentified)...
March 14, 2018: Journal of Dairy Science
C E F Clark, R Kaur, L O Millapan, H M Golder, P C Thomson, A Horadagoda, M R Islam, K L Kerrisk, S C Garcia
Grain-based concentrate (GBC) supplement is of high cost to dairy farmers as a feed source as opposed to grazed pasture. Milk production response to GBC is affected by the composition and nutritive value of the remainder of the diet, animal factors, and interactions between forage type and level of GBC. In grazing systems, dairy cattle encounter contrasting pasture states, primarily because the social structure of the herd affects the timing of when each animal accesses a paddock after milking as a result of a relatively consistent cow milking order...
March 14, 2018: Journal of Dairy Science
Ricardo C Chebel, Luís G D Mendonça, Pietro S Baruselli
The objectives of the current study were to determine the association between body condition score change during the dry period (ΔBCS) and postpartum health and reproductive and productive performance of Holstein cows. Data from 16,104 lactations from 9,950 parous cows from 2 dairies located in the San Joaquin Valley of California were used. Within dairy, cows were scored for body condition at dry off and parturition by the same herd workers, who were trained by veterinarians from the Veterinary Medicine Teaching and Research Center of the University of California Davis...
March 14, 2018: Journal of Dairy Science
E A Horst, S K Kvidera, E J Mayorga, C S Shouse, M Al-Qaisi, M J Dickson, J Ydstie, H A Ramirez Ramirez, A F Keating, D J Dickson, K E Griswold, L H Baumgard
Activated immune cells are insulin sensitive and utilize copious amounts of glucose. Because chromium (Cr) increases insulin sensitivity and may be immunomodulatory, our objective was to evaluate the effect of supplemental Cr (KemTrace Cr propionate, 20 g/d; Kemin Industries Inc., Des Moines, IA) on immune system glucose utilization and immune system dynamics following an intravenous endotoxin challenge in lactating Holstein cows. Twenty cows (320 ± 18 d in milk) were randomly assigned to 1 of 4 treatments: (1) pair-fed (PF) control (PF-CON; 5 mL of saline; n = 5), (2) PF and Cr supplemented (PF-Cr; 5 mL of saline; n = 5), (3) lipopolysaccharide (LPS)-euglycemic clamp and control supplemented (LPS-CON; 0...
March 14, 2018: Journal of Dairy Science
S van Gastelen, E C Antunes-Fernandes, K A Hettinga, J Dijkstra
Several in vivo CH4 measurement techniques have been developed but are not suitable for precise and accurate large-scale measurements; hence, proxies for CH4 emissions in dairy cattle have been proposed, including the milk fatty acid (MFA) profile. The aim of the present study was to determine whether recently developed MFA-based prediction equations for CH4 emission are applicable to dairy cows with different diacylglycerol o-acyltransferase 1 (DGAT1) K232A polymorphism and fed diets with and without linseed oil...
March 14, 2018: Journal of Dairy Science
S van Gastelen, H Mollenhorst, E C Antunes-Fernandes, K A Hettinga, G G van Burgsteden, J Dijkstra, J L W Rademaker
The objective of the present study was to compare the prediction potential of milk Fourier-transform infrared spectroscopy (FTIR) for CH4 emissions of dairy cows with that of gas chromatography (GC)-based milk fatty acids (MFA). Data from 9 experiments with lactating Holstein-Friesian cows, with a total of 30 dietary treatments and 218 observations, were used. Methane emissions were measured for 3 consecutive days in climate respiration chambers and expressed as production (g/d), yield (g/kg of dry matter intake; DMI), and intensity (g/kg of fat- and protein-corrected milk; FPCM)...
March 14, 2018: Journal of Dairy Science
G Niero, S Currò, A Costa, M Penasa, M Cassandro, C Boselli, G Giangolini, M De Marchi
Free radicals are reactive and unstable waste scrap molecules produced by cells, responsible of damages and alteration on DNA, proteins, and fat. The daily intake of antioxidant compounds, acting against free radicals and their detrimental effects, is essential for human health. Milk contains several compounds with antioxidant activity, and the sum of their reducing potential blocking free radicals development is defined as total antioxidant activity (TAA). This novel trait has been described in literature both in individual and bulk cow milk, but there are no reports from other dairy species...
March 14, 2018: Journal of Dairy Science
V Kroezen, F S Schenkel, F Miglior, C F Baes, E J Squires
High-yielding dairy cattle are susceptible to ketosis, a metabolic disease that negatively affects the health, fertility, and milk production of the cow. Interest in breeding for more robust dairy cattle with improved resistance to disease is global; however, genetic evaluations for ketosis would benefit from the additional information provided by genetic markers. Candidate genes that are proposed to have a biological role in the pathogenesis of ketosis were investigated in silico and a custom panel of 998 putative single nucleotide polymorphism (SNP) markers was developed...
March 14, 2018: Journal of Dairy Science
J M Morton, J E Pryce, M Haile-Mariam
Reproductive performance in dairy cows can be improved through genetic selection and herd management. Milk protein concentration is strongly associated with various measures of reproductive performance, but the relative importance of genetic and environmental components of these associations have not been defined. The primary objective of this study was to estimate the magnitudes of correlations and covariances between 9 reproductive performance traits in dairy cows and each of milk protein concentration and milk yield at 4 levels: genetic, permanent environmental effects of cow, herd-year-season, and residual levels...
March 14, 2018: Journal of Dairy Science
Federica Porcaro, Lucia Caminiti, Giuseppe Crisafulli, Francesco Guglielmo, Giovanni Battista Pajno
Children who are highly sensitive to milk may also have severe allergic reactions after exposure to cow's milk proteins(CMP) through a different administration route than the oral one. We describe the case of a 16-year-old Caucasian boy with a clinical history of persistent cow's milk allergy (CMA), who developed one episode of anaphylaxis following cutaneous application of a bovine colostrum containing cream to a surgical wound. UniCAP testing showed a significant elevation in specific IgE antibodies to whey milk proteins...
March 12, 2018: Asian Pacific Journal of Allergy and Immunology
Kai Lin, Lan-Wei Zhang, Xue Han, Liang Xin, Zhao-Xu Meng, Pi-Min Gong, Da-You Cheng
Yak milk casein was selected as a potential precursor of bioactive peptides based on in silico analysis. Most notable among these are the angiotensin I-converting enzyme (ACE) inhibitory peptides. First, yak milk casein has high homology with cow milk casein by homologous analysis. The potential of yak milk casein for the releasing bioactive peptides was evaluated by determining the frequency of occurrence of fragments with a given activity. Through the BIOPEP database analysis, there are many bioactive peptides in yak milk casein sequences...
July 15, 2018: Food Chemistry
S Maria O'Kane, L Kirsty Pourshahidi, Maria S Mulhern, J J Strain, Emer M Mackle, Duygu Koca, Lutz Schomburg, Sarah Hill, Jennifer O'Reilly, Diana Kmiotek, Christian Deitrich, Sarah C Bath, Alison J Yeates
Background: Recent evidence has highlighted the prevalence of mild-to-moderate iodine deficiency in women of childbearing age and pregnant women, with important public health ramifications due to the role of iodine, which is required for thyroid hormone production, in neurodevelopment. Cow milk contributes the greatest amount to iodine intakes in several countries. Objective: The objective of this study was to investigate the effect of increased cow milk consumption on iodine status, thyroid hormone concentrations, and selenium status...
March 1, 2018: Journal of Nutrition
Jair C Ferreira, Marilia S Gomes, Erika C R Bonsaglia, Igor F Canisso, Edgar F Garrett, Jamie L Stewart, Ziyao Zhou, Fabio S Lima
Several multiple-media culture systems have become commercially available for on-farm identification of mastitis-associated pathogens. However, the accuracy of these systems has not been thoroughly and independently validated against microbiological evaluations performed by referral laboratories. Therefore, the purpose of the present study was to evaluate the performance of commercially available culture plates (Accumast, Minnesota Easy System, SSGN and SSGNC Quad plates) to identify pathogens associated with clinical mastitis in dairy cows...
2018: PloS One
Jacqueline H Wolf
In the late 19th-century United States and Europe, infants died at high rates from diarrhea. Physicians and social justice advocates responded to the public health crisis with attempts to clean up the water and cows' milk supplies, as well as social welfare legislation and assorted educational efforts to help mothers better care for their children. Most visible among the educational efforts were breastfeeding campaigns. A century later in developing countries, physicians and activists were confronted with a similar problem-infants dying from diarrhea due to the unethical advertising and marketing practices of formula companies...
March 1, 2018: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
Andrew Bates, Rory O'Brien, Simon Liggett, Frank Griffin
BACKGROUND: Johne's disease is a major production limiting disease of dairy cows. The disease is chronic, progressive, contagious and widespread; there is no treatment and there is no cure. Economic losses arise from decreased productivity through reduced growth, milk yield and fertility and capital losses due to premature culling or death. This study attempts to address the effect of subclinical JD on milk production under New Zealand pastoral dairy farming conditions using a new testing approach...
March 14, 2018: BMC Veterinary Research
Francieli Fontana Sutile Tardetti Fantinato, Alexander Vargas, Sandra Maria Deotti Carvalho, Carla Magda Allan Santos Domingues, Gisele Barreto, Arieli Schiessl Fialho, Roselita Heinen da Silva, Eduardo Saad, Ivonne Natalia Solarte Agredo
The study aimed to describe cases and verify the frequency of anaphylaxis related to measles, mumps, and rubella (MMR) vaccine produced by manufacturer A and to assess associated risk factors. This was a case-control study (1:4) in Santa Catarina State, Brazil, from July 14, 2014, to January 12, 2015, in children from one year to less than five years of age, vaccinated with MMR and reported with anaphylaxis, while the controls were without anaphylaxis. The measure of association was odds ratio (OR) with 95% confidence interval (95%CI), using the chi-square and Fisher's exact tests...
March 12, 2018: Cadernos de Saúde Pública
Mauro Zaninelli, Veronica Redaelli, Fabio Luzi, Valerio Bronzo, Malcolm Mitchell, Vittorio Dell'Orto, Valentino Bontempo, Donata Cattaneo, Giovanni Savoini
The aim of the present study was to test infrared thermography (IRT), under field conditions, as a possible tool for the evaluation of cow udder health status. Thermographic images (n. 310) from different farms (n. 3) were collected and evaluated using a dedicated software application to calculate automatically and in a standardized way, thermographic indices of each udder. Results obtained have confirmed a significant relationship between udder surface skin temperature (USST) and classes of somatic cell count in collected milk samples...
March 14, 2018: Sensors
Hannah Crocker Cunningham, Kristi M Cammack, Kristin E Hales, Harvey C Freetly, Amanda K Lindholm-Perry
Feed costs account for over 70% of the annual expenditures in cow/calf production. During the production year the cow uses nutrients to support conceptus growth, milk production, work (grazing and locomotion), and maintenance requirements. The majority of the nutrients are used to support maintenance. Substrate cycling has been identified as one of the major contributors toward energy expenditure associated with maintenance in mature cows. The objective of this study was to determine whether beef cows that differ in the efficiency of weight gain differ in the relative abundance of transcripts for metabolic regulation in adipose tissue...
2018: PloS One
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