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https://www.readbyqxmd.com/read/27922230/consensus-statement-on-diagnosis-treatment-and-follow-up-of-cow-s-milk-protein-allergy-among-infants-and-children-in-turkey
#1
Aydan Kansu, Aysel Yüce, Buket Dalgıç, Bülent Enis Şekerel, Fügen Çullu-Çokuğraş, Haluk Çokuğraş
The present paper aims to provide experts' consensus on diagnosis and management of cow's milk protein allergy (CMPA) among infants and children in Turkey, based on review of available evidence-based guidelines, publications and experts' clinical experience. The experts agreed that CMPA diagnosis should be based on symptomatic evaluation and diagnostic elimination diet as followed by implementation of an open challenge test after disappearance of symptoms and confirmation of CMPA diagnosis in re-appearance of symptoms...
2016: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/27917680/development-of-nitrogen-and-methane-losses-in-the-first-eight-weeks-of-lactation-in-holstein-cows-subjected-to-deficiency-of-utilisable-crude-protein-under-restrictive-feeding-conditions
#2
Franz Sutter, Angela Schwarm, Michael Kreuzer
Low-protein diets are increasingly being used in dairy cow nutrition to minimise noxious nitrogen (N) emissions. However, at parturition, the lower milk yield at that time may mask deficiency in dietary utilisable crude protein (uCP; equivalent to metabolisable protein). Under restrictive feeding conditions, farmers would limit the feed allowance to match the lower measured milk yield, thereby exacerbating the deficiency. The consequences for N emission intensity per kg milk yield and methane emissions are unknown...
February 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/27917164/longitudinal-study-of-two-irish-dairy-herds-low-numbers-of-shiga-toxin-producing-escherichia-coli-o157-and-o26-super-shedders-identified
#3
Brenda P Murphy, Evonne McCabe, Mary Murphy, James F Buckley, Dan Crowley, Séamus Fanning, Geraldine Duffy
A 12-month longitudinal study was undertaken on two dairy herds to ascertain the Shiga-toxin producing Escherichia coli (STEC) O157 and O26 shedding status of the animals and its impact (if any) on raw milk. Cattle are a recognized reservoir for these organisms with associated public health and environmental implications. Animals shedding E. coli O157 at >10,000 CFU/g of feces have been deemed super-shedders. There is a gap in the knowledge regarding super-shedding of other STEC serogroups. A cohort of 40 lactating cows from herds previously identified as positive for STEC in a national surveillance project were sampled every second month between August, 2013 and July, 2014...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27915437/selective-reliable-blood-and-milk-bio-markers-for-diagnosing-clinical-and-subclinical-bovine-mastitis
#4
Kadry Sadek, Ebeed Saleh, Mousa Ayoub
Mastitis is positioned as the most vital ailment in dairy cows in light of conventional cost examinations. The aim of the present study was to evaluate the diagnostic value of different acute phase proteins (APPs), pro-inflammatory cytokines, and oxidative stress biomarkers in healthy cows and in those with clinical or subclinical mastitis and to localize APP gene expression in the milk of mastitic cows. Therefore, 20 subclinical mastitic cows with positive California Mastitis Test (CMT) results and no clinical signs of mastitis, 15 clinically mastitic cows, and 15 healthy cows with negative CMT results and somatic cell count (SCC) of <600,000 cells/mL were selected...
December 3, 2016: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/27892878/inflammatory-biomarkers-are-associated-with-ketosis-in-periparturient-holstein-cows
#5
Mohannad Abuajamieh, Sara K Kvidera, Maria V Sanz Fernandez, Amir Nayeri, Nathan C Upah, Erin A Nolan, Sam M Lei, Jeffery M DeFrain, Howard B Green, Katie M Schoenberg, William E Trout, Lance H Baumgard
Ketosis is a prevalent periparturient metabolic disorder and we hypothesize that lipopolysaccharide (LPS) infiltration may play a key role in its etiology. Study objectives were to characterize biomarkers of inflammation during the transition period in healthy and clinically diagnosed ketotic cows. Cows were retrospectively categorized into one of two groups: healthy and clinically diagnosed ketotic. Two data sets were utilized; the first dataset (Study A) was obtained as a subset of cows (n=16) enrolled in a larger experiment conducted at the Iowa State University Dairy utilizing Holstein cows (8 healthy; 8 ketotic), and the second dataset (Study B; 22 healthy; 22 ketotic) was obtained from a commercial farm...
September 21, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27889122/genome-wide-association-study-for-cheese-yield-and-curd-nutrient-recovery-in-dairy-cows
#6
C Dadousis, S Biffani, C Cipolat-Gotet, E L Nicolazzi, G J M Rosa, D Gianola, A Rossoni, E Santus, G Bittante, A Cecchinato
Cheese production and consumption are increasing in many countries worldwide. As a result, interest has increased in strategies for genetic selection of individuals for technological traits of milk related to cheese yield (CY) in dairy cattle breeding. However, little is known about the genetic background of a cow's ability to produce cheese. Recently, a relatively large panel (1,264 cows) of different measures of individual cow CY and milk nutrient and energy recoveries in the cheese (REC) became available...
November 23, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27885437/association-of-stat5a-gene-variants-with-milk-production-traits-in-agerolese-cattle
#7
Maria Selvaggi, Sara Albarella, Cataldo Dario, Vincenzo Peretti, Francesca Ciotola
Two polymorphisms at STAT5A gene were investigated in a sample of Agerolese cows. The aims of the present study were to estimate the allele and genotype frequencies and to investigate the relationship among genotypes and milk production traits. Milk production traits were analyzed for each animal in the first, second, third, and fourth lactation. No genetic variability was found at STAT5A/AvaI locus. At STAT5A/MslI locus, the frequencies of T and C alleles were 0.875 and 0.125, respectively. Significant differences between genotypes were found: TT cow produced a milk with a higher content of fat and protein when compared with TC...
November 24, 2016: Biochemical Genetics
https://www.readbyqxmd.com/read/27881594/hepatic-activity-and-transcription-of-betaine-homocysteine-methyltransferase-methionine-synthase-and-cystathionine-synthase-in-periparturient-dairy-cows-are-altered-to-different-extents-by-supply-of-methionine-and-choline
#8
Zheng Zhou, Timothy A Garrow, Xianwen Dong, Daniel N Luchini, Juan J Loor
BACKGROUND: Compared with choline, Met enhances milk yield and feed intake, and elicits a better immuno-metabolic status in periparturient cows. It is unknown whether hepatic activity and transcription of betaine-homocysteine methyltransferase (BHMT), 5-methyltetrahydrofolate-homocysteine methyltransferase (MTR), and cystathionine β-synthase (CBS) are responsive to Met and choline supply. OBJECTIVE: This study sought to characterize hepatic BHMT, MTR, and CBS transcription and activity in response to Met and choline supplementation...
November 23, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27876865/increased-gene-dosage-for-%C3%AE-and-%C3%AE%C2%BA-casein-in-transgenic-cattle-improves-milk-composition-through-complex-effects
#9
Götz Laible, Grant Smolenski, Thomas Wheeler, Brigid Brophy
We have previously generated transgenic cattle with additional copies of bovine β- and κ casein genes. An initial characterisation of milk produced with a hormonally induced lactation from these transgenic cows showed an altered milk composition with elevated β-casein levels and twofold increased κ-casein content. Here we report the first in-depth characterisation of the composition of the enriched casein milk that was produced through a natural lactation. We have analyzed milk from the high expressing transgenic line TG3 for milk composition at early, peak, mid and late lactation...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27876251/-food-protein-induced-enterocolitis-syndrome-a-case-report-of-diarrhea-with-hypovolemic-shock-and-methemoglobinemia
#10
L Genere, N Pecciarini, N Peretti, F Villard, A Lachaux
We report on the case of a young infant with chronic diarrhea that worsened and turned into hypovolemic shock with methemoglobinemia. We underline and discuss the main features of food protein-induced enterocolitis syndrome (FPIES). FPIES is a non-IgE-mediated food allergy involving tumor necrosis factor-alpha (TNF-α). Many triggering foods exist but cow's milk, as in the case reported herein, is one of the most frequent. It can start early or be delayed and start around the average age of 5 months. Symptoms are nonspecific with diarrhea and vomiting, but in the presence of methemoglobinemia, the diagnosis must be seriously considered...
November 18, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27871373/design-and-production-of-antibodies-for-the-detection-of-streptococcus-uberis
#11
K Mihklepp, K Kivirand, M Nikopensius, D Peedel, M Utt, T Rinken
Streptococcus uberis (S. uberis) is an important environmental pathogen causing mastitis in dairy cattle. Mastitis or mammary gland infection is the most common disease in milking cows and cause significant economic burden to farmers due to the reduction of the amount of milk and its quality. The development of rapid analytical methods for the determination of mastitis-causing pathogens in milk is of utmost importance for the early identification of the causes of mastitis and the beginning of timely treatment of cows...
January 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/27869065/effect-of-organic-grass-clover-silage-on-fiber-digestion-in-dairy-cows
#12
S S Naadland, H Steinshamn, S J Krizsan, Å T Randby
There are differences in grass-clover proportions and chemical composition between herbage from primary growth (PG) and regrowth (RG) in grass-clover leys. Mixing silages made from PG and RG may provide a more optimal diet to dairy cows than when fed separately. We tested the hypotheses that increasing dietary proportions of grass-clover silage made from RG compared with PG would increase digestion rate of potentially degradable NDF (pdNDF), and increase ruminal accumulation of indigestible NDF (iNDF). Eight rumen cannulated Norwegian Red cows were used in two replicated 4×4 Latin squares with 21-day periods...
November 21, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27868257/the-effect-of-maize-silage-type-on-the-performances-and-methane-emission-of-dairy-cattle
#13
J L De Boever, K Goossens, N Peiren, J Swanckaert, B Ampe, D Reheul, D L De Brabander, S De Campeneere, L Vandaele
To examine whether type of maize silage is important for milk production performances, maize silage LG30224 (LG) was compared with Falkone (FA), the latter having a 4.0% points lower rumen NDF digestibility and 19 g/kg dry matter (DM) more starch. To bridge the lower energy content of FA, a third treatment was involved by adding maize meal (MM) in a ratio of 92/8 on DM (FA+MM). Maize and grass silage were fed ad libitum in a ratio of 65/35 on DM basis. Concentrates were supplemented individually to meet energy and protein requirements...
November 21, 2016: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/27865509/effect-of-incremental-amounts-of-camelina-oil-on-milk-fatty-acid-composition-in-lactating-cows-fed-diets-based-on-a-mixture-of-grass-and-red-clover-silage-and-concentrates-containing-camelina-expeller
#14
A Halmemies-Beauchet-Filleau, K J Shingfield, I Simpura, T Kokkonen, S Jaakkola, V Toivonen, A Vanhatalo
Camelina is an ancient oilseed crop that produces an oil rich in cis-9,cis-12 18:2 (linoleic acid, LA) and cis-9,cis-12,cis-15 18:3 (α-linolenic acid, ALA); however, reports on the use of camelina oil (CO) for ruminants are limited. The present study investigated the effects of incremental CO supplementation on animal performance, milk fatty acid (FA) composition, and milk sensory quality. Eight Finnish Ayrshire cows (91 d in milk) were used in replicated 4 × 4 Latin squares with 21-d periods. Treatments comprised 4 concentrates (12 kg/d on an air-dry basis) based on cereals and camelina expeller containing 0 (control), 2, 4, or 6% CO on an air-dry basis...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27865500/lipopolysaccharide-derived-from-the-digestive-tract-provokes-oxidative-stress-in-the-liver-of-dairy-cows-fed-a-high-grain-diet
#15
J A Abaker, T L Xu, D Jin, G J Chang, K Zhang, X Z Shen
The aims of this study were to measure oxidative stress parameters and to investigate the molecular mechanism triggered by grain-induced subacute ruminal acidosis in mid-lactation cows. Twelve Holstein-Friesian cows with an average weight of 455 ± 28 kg were divided into 2 groups and subjected to 2 diets over 18 wk: either a low-grain (forage-to-concentrate ratio = 6:4) or a high-grain (forage-to-concentrate ratio = 4:6) diet based on dry matter. Being fed a long-term high-grain diet resulted in a significant decrease in rumen pH and a significant increase in ruminal lipopolysaccharide (LPS) at 4 h postfeeding in the morning...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27865490/effect-of-concentrate-supplementation-during-the-dry-period-on-colostrum-quality-and-effect-of-colostrum-feeding-regimen-on-passive-transfer-of-immunity-calf-health-and-performance
#16
A Dunn, A Ashfield, B Earley, M Welsh, A Gordon, M McGee, S J Morrison
The objectives were to evaluate the effect of (1) supplementing concentrates to multiparous Holstein cows during the dry period on colostral and milk immunoglobulin G (IgG) concentration; and (2) feeding calves colostrum at either 5 or 10% of their body weight (BW) on passive transfer of immunity, health, and performance. Holstein multiparous cows (n = 37) were assigned to 1 of 2 nutritional treatments during an 8-wk dry period: (1) offered ad libitum grass silage only (GS) or (2) offered ad libitum access to the same grass silage plus concentrate [total mixed ration in a 75:25 dry matter (DM) ratio], providing a mean concentrate DM intake of 3...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27865487/prediction-and-validation-of-residual-feed-intake-and-dry-matter-intake-in-danish-lactating-dairy-cows-using-mid-infrared-spectroscopy-of-milk
#17
N Shetty, P Løvendahl, M S Lund, A J Buitenhuis
The present study explored the effectiveness of Fourier transform mid-infrared (FT-IR) spectral profiles as a predictor for dry matter intake (DMI) and residual feed intake (RFI). The partial least squares regression method was used to develop the prediction models. The models were validated using different external test sets, one randomly leaving out 20% of the records (validation A), the second randomly leaving out 20% of cows (validation B), and a third (for DMI prediction models) randomly leaving out one cow (validation C)...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27865409/high-somatic-cell-counts-and-changes-in-milk-fat-and-protein-contents-around-insemination-are-negatively-associated-with-conception-in-dairy-cows
#18
Ahmad Albaaj, Gilles Foucras, Didier Raboisson
The fertility of dairy cows has decreased dramatically worldwide over the last few decades, and several causes of this trend have been reported. Several studies have associated compromised udder health with deteriorating reproduction performance. Subclinical ketosis (SCK) has also been reported to be a risk factor for decreased conception. The objective of the present study was to describe how SCK might interact with the reported association between udder health and conception in dairy cows. Data from the French Milk Control Program and data on 8,549,667 instances of artificial insemination (AI) and their corresponding preceding and subsequent test-days from 5,979,701 Holstein cows were examined over a 5-year period (2008-2012)...
January 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/27862398/milk-protein-responses-to-balanced-amino-acid-and-removal-of-leucine-and-arginine-supplied-from-jugular-infused-amino-acid-mixture-in-lactating-dairy-cows
#19
W Tian, H R Wang, T Y Wu, L Y Ding, R Zhao, E Khas, C F Wang, F Q Zhang, F Y Mi, L Wang, L T Ning
This study was undertaken to evaluate the milk protein response when cows were supplied a balanced AA profile and to determine whether a deficiency of Leucine (Leu) or Arginine (Arg) had a negative effect on milk protein. Eight mid-lactation Holstein cows were randomly assigned to 5-day continuous jugular infusions of saline (CTL), EAA mixture prepared on the profile of casein and supplied (in % of lysine (Lys)) 100% of Lys, 33.3% of methionine (Met), 110.2% of Leu, 43.6% of Arg, 50.8% of threonine (Thr), 81...
November 13, 2016: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/27858467/long-term-influence-of-feeding-barley-treated-with-lactic-acid-and-heat-on-performance-and-energy-balance-in-dairy-cows
#20
Leonhard Gruber, Annabella Khol-Parisini, Elke Humer, Sherief M Abdel-Raheem, Qendrim Zebeli
The study evaluated the long-term influence of feeding ground barley treated with lactic acid (LA) alone or with LA and heat on performance, energy and protein balance in dairy cows. Thirty cows were fed three diets differing in the treatment of barley grain, either unprocessed ground barley (Control), ground barley steeped in 1% LA at room temperature (LA-treated barley) or ground barley steeped in 1% LA with an additional heating at 55°C (LAH-treated barley). Cows were studied from week 3 to 17 post-partum...
November 18, 2016: Archives of Animal Nutrition
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