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https://www.readbyqxmd.com/read/29667561/comparative-in-vitro-efficacy-of-kefir-produced-from-camel-goat-ewe-and-cow-milk-on-haemonchus-contortus
#1
D Alimi, M Rekik, H Akkari
One of the great challenges of veterinary parasitology is the search for alternative methods for controlling gastrointestinal parasites in small ruminants. Milk kefir is a traditional source of probiotic, with great therapeutic potential. The objective of this study was to investigate the anthelmintic effects of kefir on the abomasal nematode Haemonchus contortus from sheep. The study used camel, goat, ewe and cow milk as a starting material, to produce camel, goat, cow and ewe milk kefir. All kefirs showed a significant concentration-dependent effect on H...
April 18, 2018: Journal of Helminthology
https://www.readbyqxmd.com/read/29666547/use-of-urea-polyacrylamide-electrophoresis-for-discrimination-of-a1-and-a2-beta-casein-variants-in-raw-cow-s-milk
#2
Miguel Angel Duarte-Vázquez, Carlos Raúl García-Ugalde, Blanca Erika Álvarez, Laura Mariana Villegas, Blanca Estela García-Almendárez, Jorge Luis Rosado, Carlos Regalado
Beta-casein (BC) in cow's milk occurs in several genetic variants, where BC A1 (BCA1) and BC A2 (BCA2) are the most frequent. This work deals with a method based on modified polyacrylamide gel electrophoresis using urea PAGE to discriminate BCA1 and BCA2 variants from Holstein Friesian (HF) and genetically selected Jersey A2/A2 (JA2) cow's milk. Two well defined bands were obtained from BC fraction of HF milk, while that of JA2 showed a single band. Proteins from these bands were sequenced by HPLC-quadrupole linear ion trap/mass spectrometry, resulting in BCA1 and BCA2 separation from the BC fraction of HF milk, whereas BCA2 was the only constituent of JA2 fraction...
May 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29665547/lead-and-cadmium-levels-in-raw-bovine-milk-and-dietary-risk-assessment-in-areas-near-petroleum-extraction-industries
#3
Reza Norouzirad, Jose-Ramiro González-Montaña, Felipe Martínez-Pastor, Hedayat Hosseini, Ali Shahrouzian, Mehdi Khabazkhoob, Fardin Ali Malayeri, Haniyeh Moallem Bandani, Mohsen Paknejad, Behrouz Foroughi-Nia, Atefeh Fooladi Moghaddam
Oil fields are a source of heavy metal pollution, but few studies have evaluated its impact on the intake of these contaminants through milk, an important food especially for children. From February 2015 to 2016, 118 samples of raw cow's milk, 14 of fodder and 8 of water in Southwest Iran were collected from farms close to oil fields or related industries. Lead (Pb) and cadmium (Cd) levels were evaluated by graphite furnace atomic absorption spectrometry. Mean±SE in milk and fodder were 47.0±3.9 and 54.0±6...
April 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29659964/universal-salt-iodization-provides-sufficient-dietary-iodine-to-achieve-adequate-iodine-nutrition-during-the-first-1000-days-a-cross-sectional-multicenter-study
#4
Susanne Dold, Michael B Zimmermann, Tomislav Jukic, Zvonko Kusic, Qingzhen Jia, Zhongna Sang, Antonio Quirino, Teofilo O L San Luis, Ralph Fingerhut, Roland Kupka, Arnold Timmer, Greg S Garrett, Maria Andersson
Background: Dietary iodine requirements are high during pregnancy, lactation, and infancy, making women and infants vulnerable to iodine deficiency. Universal salt iodization (USI) has been remarkably successful for preventing iodine deficiency in the general population, but it is uncertain if USI provides adequate iodine intakes during the first 1000 d. Objective: We set out to assess if USI provides sufficient dietary iodine to meet the iodine requirements and achieve adequate iodine nutrition in all vulnerable population groups...
April 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29658775/altering-allergenicity-of-cow-s-milk-by-food-processing-for-applications-in-infant-formula
#5
Abdolkhalegh Golkar, Jafar M Milani, Todor Vasiljevic
Cow's milk-based infant formulas have a long tradition in infant nutrition, although some infants are unable to use them due to presence of several known allergens. Various processing methods have been identified capable of reducing cow's milk protein allergenicity including thermal and non-thermal methods and their combinations. Heat treatment and enzymatic hydrolysis have been in production of hypoallergenic infant formulas. However, modulation of allergenic epitopes depends on the extent of heat treatment applied, which consequently may also reduce a nutritional value of these proteins...
April 16, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29658316/nmr-based-metabolomics-to-evaluate-the-milk-composition-from-friesian-and-autochthonous-cows-of-northern-italy-at-different-lactation-times
#6
A Tomassini, G Curone, M Solè, G Capuani, F Sciubba, G Conta, A Miccheli, D Vigo
It is well established that different factors affect milk composition in cows and that milk composition, in turn, affect both technological and nutritional qualities. In this respect the comprehension of the metabolic variability of milk composition in relation to the lactation time as well as to the genetic background may be of paramount importance for the agri-food industries. In the present study we investigated the variations of the metabolic profiles during lactation in milks obtained from Friesian and autochthonous races from Northern Italy by 1 H NMR metabolomics...
April 16, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29658047/a-structural-comparison-of-casein-micelles-in-cow-goat-and-sheep-milk-using-x-ray-scattering
#7
B Ingham, A Smialowska, N M Kirby, C Wang, A J Carr
The casein micelle is a flexible construct, with its key structural components being casein proteins and colloidal calcium phosphate nanoclusters. According to literature, milk from different species exhibits differences in composition and physicochemical properties. X-ray scattering techniques were used to investigate and compare the nanoscale structure of casein micelles present in cow, goat and sheep milk. Although there were differences in the size and density of larger scale protein structures, at an atomic level the protein structures were similar...
April 16, 2018: Soft Matter
https://www.readbyqxmd.com/read/29657430/detection-of-brucella-spp-in-milk-from-seronegative-cows-by-real-time-polymerase-chain-reaction-in-the-region-of-batna-algeria
#8
Rabehi Sabrina, Hamdi Taha Mossadak, Mamache Bakir, Meghezzi Asma, Boushaba Khaoula
Aim: The aim of this study was to detect Brucella spp. DNA in milk samples collected from seronegative cows using the real-time polymerase chain reaction (PCR) assay for diagnosis of brucellosis in seronegative dairy cows to prevent transmission of disease to humans and to reduce economic losses in animal production. Materials and Methods: In this study, 65 milk samples were investigated for the detection of Brucella spp. The detection of the IS711 gene in all samples was done by real-time PCR assay by comparative cycle threshold method...
March 2018: Veterinary World
https://www.readbyqxmd.com/read/29657001/accuracy-of-a-diagnostic-model-based-on-serum-biochemical-parameters-in-detecting-cows-at-an-increased-risk-of-chronic-fascioliasis
#9
Sławomir J Kowalczyk, Michał Czopowicz, Corinna N Weber, Elisabeth Müller, Jarosław Kaba
In adult cattle Fasciola hepatica infection usually follows a chronic subclinical course, and reduces both the milk yield and milk quality, resulting in considerable financial losses. Effective control of the disease is based on reliable identification of asymptomatically infected individuals, which now requires special parasitological or serological diagnostic tests. It is also known that F. hepatica infection induces alterations in some serum biochemical parameters. Therefore, the study was conducted to develop a model based on serum biochemical parameters allowing to identify cows at higher risk of chronic fascioliasis...
April 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29655564/feeding-reduced-fat-dried-distillers-grains-with-solubles-to-lactating-holstein-dairy-cows-does-not-alter-milk-composition-or-cause-late-blowing-in-cheese
#10
E D Testroet, D C Beitz, M R O'Neil, A L Mueller, H A Ramirez-Ramirez, S Clark
Feeding dried distillers grains with solubles (DDGS) to lactating dairy cows has been implicated as a cause of late blowing defects in the production of Swiss-style cheeses. Our objectives were (1) to test the effect of feeding reduced-fat DDGS (RF-DDGS; ∼6% fat) to lactating dairy cows on the composition of milk and on the suitability of the milk for production of baby Swiss cheese and (2) to evaluate the effect of diet on cow lactation performance. Lactating Holstein dairy cows were fed both dietary treatments in a 2 × 2 crossover design...
April 11, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29655563/laboratory-evaluation-of-a-novel-rapid-tube-test-system-for-differentiation-of-mastitis-causing-pathogen-groups
#11
S Leimbach, V Krömker
Because clinical mastitis, one of the most common diseases in dairy cows, is routinely treated with antimicrobial substances, it offers a high potential for future reduction of antimicrobial usage. In fact, intramammary antibiotic administration is not advisable in cases of clinical mastitis caused by coliform bacteria, yeasts, or protothecae or in cases with no detectable mastitis pathogen. To avoid unnecessary treatments with antimicrobials for the benefit of animal health and public welfare, the rapid identification of the mastitis-causing pathogens becomes necessary...
April 11, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29655559/associations-between-bone-and-energy-metabolism-in-cows-fed-diets-differing-in-level-of-dietary-cation-anion-difference-and-supplemented-with-cholecalciferol-or-calcidiol
#12
R M Rodney, N P Martinez, P Celi, E Block, P C Thomson, G Wijffels, D R Fraser, J E P Santos, I J Lean
Bone-derived hormones play an important role in metabolism. This study examined the hypothesis that interactions between bone and energy metabolism, particularly those involving osteocalcin, are present in dairy cattle and have feedback mechanisms over time. Associations between metabolites in blood were examined in 32 Holstein cows blocked by parity and milk yield and randomly allocated to diets containing either 0.27 mg/kg dry matter (DM) calcidiol or cholecalciferol for an anticipated intake of 3 mg/d (120,000 IU/d) at 11 kg of DM, and positive (+130 mEq/kg DM) or negative (-130 mEq/kg DM) dietary cation-anion difference (DCAD) from 252 d of gestation to calving...
April 11, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29652940/functionality-of-cow-milk-naturally-enriched-with-polyunsaturated-fatty-acids-and-polyphenols-in-diets-for-diabetic-rats
#13
Emerson H Yoshimura, Nadine W Santos, Erica Machado, Bruna C Agustinho, Lucelia M Pereira, Sílvia C de Aguiar, Anacharis B Sá-Nakanishi, Cecília E Mareze-da-Costa, Lucia M Zeoula
The increasing incidence of diabetes mellitus is becoming a serious threat to human health in various parts of the world. Studies with dairy products have shown a potential beneficial effect against diabetes. This experiment evaluated the supplementation of milk naturally enriched with polyunsaturated fatty acids (PUFA) and polyphenols in rats with streptozotocin-induced diabetes. Forty male 28-day-old Wistar rats were distributed in four experimental treatments of diabetic animals (streptozotocin induction) and a normal group (non-induced)...
2018: PloS One
https://www.readbyqxmd.com/read/29650430/-cow-s-milk-protein-intolerance-imitating-septic-shock-in-a-young-infant
#14
Sylvia Jacob, Artur Bonito Vitor
No abstract text is available yet for this article.
April 9, 2018: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/29650032/biosecurity-and-animal-disease-management-in-organic-and-conventional-swedish-dairy-herds-a-questionnaire-study
#15
Ulf Emanuelson, Karin Sjöström, Nils Fall
BACKGROUND: Good animal health is a notion that is germane to organic dairy production, and it is expected that such herds would pay significant attention on the health of their animals. However, it is not known if the applied animal disease management is actually more adequate in organic dairy cattle herds than in conventional dairy herds. A questionnaire study on biosecurity and animal disease management activities was therefore conducted among Swedish farmers with organic and conventional dairy cattle herds...
April 12, 2018: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/29649781/persisting-patterns-of-human-height-regional-differences-in-living-standards-in-the-early-middle-ages
#16
Nicholas J Meinzer
öProximity to protein production' has recently been identified as an important determinant of regional variation of biological standards of living, as evidenced by average heights. The number of cows per person turned out to be a useful proxy where milk consumption had not been documented. Re-analyses of agricultural production and average male heights in early 19th-century central Europe show that indicators of agricultural suitability and potential for food production constructed from modern agro-ecological data are strongly correlated with historical agricultural specialisation...
March 7, 2018: Economics and Human Biology
https://www.readbyqxmd.com/read/29648988/coccidiostats-in-milk-development-of-a-multi-residue-method-and-transfer-of-salinomycin-and-lasalocid-from-contaminated-feed
#17
Konrad Pietruk, Małgorzata Olejnik, Andrzej Posyniak
A confirmatory multi-residue method was developed for the determination in milk of 19 coccidiostats (amprolium, arprinocid, clazuril, clopidol, decoquinate, diclazuril, ethopabate, halofuginone, lasalocid, maduramicin, monensin, narasin, nicarbazin, nequinate, robenidine, salinomycin, semduramicin, toltrazuril sulfone and toltrazuril sulfoxide). Sample preparation utilizing extraction with organic solvent and clean up by solid phase extraction and freezing was found reliable and time-efficient. Optimized chromatography and mass spectrometry conditions with positive and negative electrospray ionization achieved sufficient sensitivity and selectivity...
April 12, 2018: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/29648878/protective-effect-of-lactobacillus-reuteri-dsm-17938-against-experimental-necrotizing-enterocolitis-is-mediated-by-toll-like-receptor-2
#18
Thomas K Hoang, Baokun He, Ting Wang, Dat Q Tran, Jon Marc Rhoads, Yuying Liu
Lactobacillus reuteri DSM 17938 (LR 17938) has been shown to reduce the incidence and severity of necrotizing enterocolitis (NEC). It is unclear if preventing NEC by LR 17938 is mediated by toll-like receptor 2 (TLR2), which is known to mediate pro-inflammatory responses to bacterial cell wall components. NEC was induced in newborn TLR2-/- or WT mice by the combination of gavage-feeding cow milk-based formula and exposure to hypoxia and cold stress. Treatment groups were administered formula supplemented with LR 17938 or placebo (MRS media)...
April 12, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29644703/evaluation-of-six-sample-preparation-procedures-for-qualitative-and-quantitative-proteomics-analysis-of-milk-fat-globule-membrane
#19
Yongxin Yang, Elizabeth Anderson, Sheng Zhang
Proteomic analysis of membrane proteins is challenged by the proteins solubility and detergent incompatibility with MS analysis. No single perfect protocol can be used to comprehensively characterize the proteome of membrane fraction. Here, we used cow milk fat globule membrane (MFGM) proteome analysis to assess six sample preparation procedures including one in-gel and five in-solution digestion approaches prior to LC-MS/MS analysis. The largest number of MFGM proteins were identified by suspension trapping (S-Trap) and filter-aided sample preparation (FASP) methods, followed by acetone precipitation without clean-up of tryptic peptides method...
April 12, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29644542/challenges-in-inbreeding-estimation-of-large-populations-based-on-polish-holstein-friesian-cattle-pedigree
#20
Ewa Sell-Kubiak, Łukasz Czarniecki, Tomasz Strabel
The aim of this study was to evaluate observed and future inbreeding level in Polish Holstein-Friesian cattle population. In total, over 9.8 mln animals were used in the analysis coming from the pedigree of Polish Federation of Cattle Breeders and Dairy Farmers. Inbreeding level, as an average per birth year, was estimated with the method accounting for missing parent information with the assumption of year 1950 as the base year of the population. If an animal had no ancestral records, an average inbreeding level from its birth year was assigned...
April 11, 2018: Journal of Applied Genetics
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