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https://www.readbyqxmd.com/read/28815782/influence-of-conjugated-linoleic-acids-and-vitamin-e-on-milk-fatty-acid-composition-and-concentrations-of-vitamin-a-and-%C3%AE-tocopherol-in-blood-and-milk-of-dairy-cows
#1
S Schäfers, U Meyer, D von Soosten, L Hüther, C Drong, K Eder, E Most, A Tröscher, W Pelletier, A Zeyner, S Dänicke
The objective of this trial was to investigate the influences of conjugated linoleic acid (CLA) and vitamin E (Vit. E) and their interactions on fatty acid composition and vitamins in milk (α-tocopherol, retinol and β-carotene) as well as on α-tocopherol in blood of pluriparous cows from week 6 ante partum until week 10 post-partum (p.p.). We assigned 59 pluriparous German Holstein cows to four treatment groups with the treatment factors CLA and Vit. E at two levels in a 2 × 2 factorial design. Milk fatty acid composition and milk vitamins were analysed on lactation days 7 and 28...
August 16, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28815389/spine-bone-mineral-density-increases-after-6%C3%A2-months-of-exclusive-lactation-even-in-women-who-keep-breastfeeding
#2
Sandra Cooke-Hubley, Beth J Kirby, James E Valcour, Gerald Mugford, Jonathan D Adachi, Christopher S Kovacs
This pilot study enrolled 31 women who had breastfed exclusively for 6 months. Lumbar and thoracic BMD increased 4 and 5%, respectively. Femoral neck and total body BMD did not change. Return of menses and progestin-only pill use were two potential signals that predicted a greater increase in BMD. PURPOSE/INTRODUCTION: The skeleton is resorbed during lactation to provide much of the calcium content of milk. After lactation ceases, these deficits in skeletal mineral content are largely restored, such that lactation has a neutral or protective effect against the long-term risk of low bone mineral density (BMD), osteoporosis, and fragility fractures...
August 16, 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28815274/a-new-metabolomics-based-strategy-for-identification-of-endogenous-markers-of-urine-adulteration-attempts-exemplified-for-potassium-nitrite
#3
Andrea E Steuer, Kim Arnold, Tom D Schneider, Michael Poetzsch, Thomas Kraemer
Urine adulteration to circumvent positive drug testing represents a problem for toxicological laboratories. While creatinine is a suitable marker for dilution, detection of chemicals is often performed by dipstick tests associated with high rates of false positives. Several methods would be necessary to check for all possible adulterants. Untargeted mass spectrometry (MS) methods used in metabolomics should theoretically allow detecting concentration changes of any endogenous urinary metabolite or presence of new biomarkers produced by chemical adulteration...
August 16, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28814268/the-genomic-architecture-of-mastitis-resistance-in-dairy-sheep
#4
G Banos, G Bramis, S J Bush, E L Clark, M E B McCulloch, J Smith, G Schulze, G Arsenos, D A Hume, A Psifidi
BACKGROUND: Mastitis is the most prevalent disease in dairy sheep with major economic, hygienic and welfare implications. The disease persists in all dairy sheep production systems despite the implementation of improved management practises. Selective breeding for enhanced mastitis resistance may provide the means to further control the disease. In the present study, we investigated the genetic architecture of four mastitis traits in dairy sheep. Individual animal records for clinical mastitis occurrence and three mastitis indicator traits (milk somatic cell count, total viable bacterial count in milk and the California mastitis test) were collected monthly throughout lactation for 609 ewes of the Greek Chios breed...
August 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28807278/helminth-infections-on-organic-dairy-farms-in-spain
#5
I Orjales, M Mezo, M Miranda, M González-Warleta, F Rey-Crespo, M Vaarst, S Thamsborg, F J Diéguez, J A Castro-Hermida, M López-Alonso
The aim of this study was to assess the prevalence of the major helminth infections affecting organic dairy cattle in northern Spain. Milk and faecal samples were obtained from 443 milking cows. Ostertagia ostertargi and Fasciola hepatica exposure was assessed by detection of specific antibodies in milk samples and F. hepatica infection was diagnosed by the detection of coproantigens in faecal samples. Dictyocaulus viviparus and Calicophoron daubneyi infections were diagnosed by conventional coprological techniques...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807212/comparison-of-normothermic-and-hypothermic-perfusion-in-porcine-kidneys-donated-after-cardiac-death
#6
Matthew F Blum, Qiang Liu, Basem Soliman, Paul Dreher, Toshihiro Okamoto, Emilio D Poggio, David A Goldfarb, William M Baldwin, Cristiano Quintini
BACKGROUND: Normothermic machine perfusion (NMP) is an alternative strategy for preserving kidneys donated after cardiac death (DCD). The relative efficacy of prolonged NMP compared to hypothermic machine perfusion (HMP) in DCD kidneys with moderate ischemic injury is undetermined. This study compares NMP and HMP kidney preservation in a porcine DCD model. METHODS: Ten porcine kidneys underwent NMP or HMP preservation following 45 minutes of warm ischemia and 5 hours of cold ischemia...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28806625/association-of-changes-among-body-condition-score-during-the-transition-period-with-nefa-and-bhba-concentrations-milk-production-fertility-and-health-of-holstein-cows
#7
R V Barletta, M Maturana Filho, P D Carvalho, T A Del Valle, A S Netto, F P Rennó, R D Mingoti, J R Gandra, G B Mourão, P M Fricke, R Sartori, E H Madureira, M C Wiltbank
Our objective was to evaluate the association between body condition score (BCS) change during the transition period with fertility, non-esterified fatty acids (NEFA) and beta-hydroxybutyrate (BHBA) concentrations, milk yield, and health problems of Holstein cows in a retrospective cohort study. Holstein cows (n = 232) were assessed for BCS (5 point scale; 0.25 point increments) and had blood collected at 21 and 7 d before, on the day of, and 7 and 21 d after calving. Blood samples were assayed for NEFA and BHBA concentrations...
July 27, 2017: Theriogenology
https://www.readbyqxmd.com/read/28805928/effects-of-dietary-fish-oil-supplementation-on-performance-meat-quality-and-cecal-fermentation-of-growing-rabbits
#8
M Rodríguez, M D Carro, V Valiente, N Formoso-Rafferty, P G Rebollar
The objective of this study was to investigate the effect of dietary supplementation with fish oil on growth performance (during all fatening period), carcass characteristics and fatty acid (FA) profile of muscle and fat tissues (at slaughter), as well as cecal fermentation and ileal mucosa morphology of growing rabbits (at 30, 45, and 60 d of age). Two isonitrogenous and isoenergetic diets, only differing in their fat source, were formulated and provided each to 24 does (12 per diet) and their offspring during pregnancy and lactation...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805912/prediction-of-fecal-nitrogen-and-phosphorus-excretion-for-chinese-holstein-lactating-dairy-cows
#9
Q B Qu, P Yang, R Zhao, S L Zhi, Z W Zhai, F F Ding, K Q Zhang
Mathematical models for predicting nitrogen and phosphorus excretion play a key role in manure application and environment monitoring. An analysis for prediction of fecal nitrogen (FN, g/d) and fecal phosphorus (FP, g/d) excretion for Chinese Holstein lactating dairy cows was conducted using a data set from 15 dairy farms in northern China. The whole independent-variable data set, obtained with questionnaires, consisted of 110 sets of average diet nutrient compositions, including DMI (kg/d), CP content (% DM), OM intake (OMI, kg/d), nitrogen intake (NI, g/d), and phosphorus intake (PI, g/d), and animal characteristics, including average days in milk (DIM, d), average milk yield (MY, kg/d), and average BW (kg)...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805897/effects-of-grass-silage-quality-and-level-of-feed-intake-on-enteric-methane-production-in-lactating-dairy-cows
#10
D Warner, A Bannink, B Hatew, H van Laar, J Dijkstra
The objective of this study was to determine the effect of level of feed intake and quality of ryegrass silage as well as their interaction on enteric methane (CH) emission from dairy cows. In a randomized block design, 56 lactating dairy cows received a diet of grass silage, corn silage, and a compound feed meal (70:10:20 on DM basis). Treatments consisted of 4 grass silage qualities prepared from grass harvested from leafy through late heading stage, and offered to dairy cows at 96 ± 2.4 (mean ± SEM) days in milk (namely, high intake) and 217 ± 2...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805889/oxytocin-injections-in-the-postpartal-period-affect-mammary-tight-junctions-in-sows
#11
C Farmer, M Lessard, C H Knight, H Quesnel
The potential impacts of injecting oxytocin (OXY) to sows in the early postpartum period on the quality of mammary tight junctions, milk composition, and immune status of sows and piglets were studied. Postparturient sows received i.m. injections of either saline (control [CTL]; = 10) or 75 IU of OXY ( = 10). Injections were given twice daily (0800 and 1630 h) starting on d 2 of lactation (i.e., between 12 and 20 h after birth of the last piglet), totaling 4 injections. Milk samples were obtained before the first injection (d 2 morning [AM]), before the second injection (d 2 afternoon [PM]), and on d 4 PM and d 5 PM...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805609/efficacy-of-pet-ct-to-exclude-leiomyoma-in-patients-with-lesions-suspicious-for-uterine-sarcoma-on-mri
#12
Soshi Kusunoki, Yasuhisa Terao, Takafumi Ujihira, Kazunari Fujino, Hiroshi Kaneda, Miki Kimura, Tsuyoshi Ota, Satoru Takeda
OBJECTIVE: To analyze the efficacy of positron emission tomography/computed tomography (PET/CT) for the diagnosis of uterine sarcoma. MATERIALS AND METHODS: Thirty-four patients evaluated between January 2010 and March 2015 were retrospectively enrolled. All patients in whom uterine sarcoma was suspected based on contrast-enhanced magnetic resonance imaging (MRI) findings (heterogeneous, high signal intensity on T2-weighted images and/or high intensity on T1-weighted images) underwent PET/CT for further assessment...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28803021/effect-of-dietary-supplementation-with-heat-treated-canola-meal-on-ruminal-nutrient-metabolism-in-lactating-dairy-cows
#13
S J Krizsan, H Gidlund, F Fatehi, P Huhtanen
An experiment was conducted to quantify the effects of incremental levels of heat-moisture-treated canola meal (TCM) fed to dairy cows on the relationship between ruminal nutrient digestion and milk production. Experimental diets were fed to 4 multiparous rumen-cannulated Nordic Red cows, averaging (mean ± standard deviation) 681 ± 54.8 kg of body weight, 111 ± 16 d in milk, and 29.1 ± 9.1 kg of milk/d at the start of the study, in a Latin square design with four 21-d periods. The 4 experimental dietary treatments consisted of a basal diet of grass silage and crimped barley, and 3 diets in which the crimped barley was replaced with TCM, giving 3 incremental levels of protein supplementation...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28803019/daily-lying-behavior-of-lactating-holstein-cows-during-an-estrus-synchronization-protocol-and-its-associations-with-fertility
#14
B F Silper, A M L Madureira, L B Polsky, S Soriano, A F Sica, J L M Vasconcelos, R L A Cerri
Objectives were to quantify lying behavior (LB) during an estradiol and progesterone-based synchronization protocol, to assess risk factors for ovulation, pregnancy per AI (P/AI), and degree of behavioral change at estrus, and to investigate the associations between estrus LB and walking activity. Holstein cows (43.6 ± 11.0 kg of milk/d) were fitted with leg-mounted accelerometers. Total lying time/d (L_time), bout frequency (bout_N), average lying bout duration, and relative increase in walking activity (ACT%) were evaluated for 1,411 timed artificial insemination events...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28803016/association-between-ambient-temperature-and-humidity-vaginal-temperature-and-automatic-activity-monitoring-on-induced-estrus-in-lactating-cows
#15
Liam B Polsky, Augusto M L Madureira, Eraldo L Drago Filho, Sergio Soriano, Alex F Sica, José L M Vasconcelos, Ronaldo L A Cerri
The objective of this study was to determine the association between ambient temperature and humidity, vaginal temperature, and automated activity monitoring in synchronized cows. Lactating Holstein cows (n = 641; 41.5 ± 9.4 kg of milk/d) were fitted with leg-mounted pedometers, resulting in 843 evaluated activity episodes of estrus. Vaginal temperature was monitored using thermometers attached to an intravaginal device as part of a timed artificial insemination (TAI) protocol; vaginal temperature was recorded every 10 min for 3 d...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28803014/fertility-of-lactating-holstein-cows-submitted-to-a-double-ovsynch-protocol-and-timed-artificial-insemination-versus-artificial-insemination-after-synchronization-of-estrus-at-a-similar-day-in-milk-range
#16
V G Santos, P D Carvalho, C Maia, B Carneiro, A Valenza, P M Fricke
Our objective was to compare the AI submission rate and pregnancies per artificial insemination (P/AI) at first service of lactating Holstein cows submitted to a Double-Ovsynch protocol and timed artificial insemination (TAI) versus artificial insemination (AI) to a detected estrus after synchronization of estrus at a similar day in milk range. Lactating Holstein cows were randomly assigned to receive their first TAI after a Double-Ovsynch protocol (DO; n = 294) or to receive their first AI after a synchronized estrus (EST; n = 284)...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28803010/short-communication-apparent-ruminal-synthesis-of-b-vitamins-in-lactating-dairy-cows-fed-saccharomyces-cerevisiae-fermentation-product
#17
D S Castagnino, Y Ying, M S Allen, R Gervais, P Y Chouinard, C L Girard
Apparent ruminal synthesis and duodenal flow of thiamin, riboflavin, niacin, vitamin B6, folates, and vitamin B12 were evaluated in an experiment using 15 ruminally and duodenally cannulated lactating Holstein cows fed a basal diet, according to a crossover design, supplemented or not with 56 g/d of Saccharomyces cerevisiae fermentation product. Duration of the treatment period was 28 d. The basal ration had 28% neutral detergent fber, 30% starch and 16.5% crude protein; forages were corn silage (67% of forage dry matter) and alfalfa silage (33% of forage dry matter)...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28803009/involvement-of-plasma-adipokines-in-metabolic-and-reproductive-parameters-in-holstein-dairy-cows-fed-with-diets-with-differing-energy-levels
#18
N Mellouk, C Rame, J L Touzé, E Briant, L Ma, D Guillaume, D Lomet, A Caraty, T Ntallaris, P Humblot, J Dupont
This study aimed to investigate the association between plasma adipokine concentrations and metabolic and reproductive parameters in Holstein dairy cows fed diets with different energy levels during the peripartum period. The experiment started 1 mo before first calving and was maintained for 2 lactations. Dry matter intake and energy balance in animals fed a low-energy (LE) diet were significantly lower than that of animals fed a high-energy (HE) diet in the first lactation. Body weight, milk production, back fat thickness, and plasma concentrations of fatty acids, glucose, and insulin were not affected by diet, whereas plasma leptin and adiponectin concentrations were lower and plasma resistin concentrations higher in animals fed the LE diet...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28800908/stimulation-of-d-and-l-lactate-dehydrogenases-transcriptional-levels-in-presence%C3%A2-of-diammonium-hydrogen-phosphate-resulting-to-enhanced-lactic-acid%C3%A2-production-by-lactobacillus-strain
#19
Mamata Singhvi, Takeshi Zendo, Hiroshi Iida, Digambar Gokhale, Kenji Sonomoto
The present study revealed the effect of nitrogen sources on lactic acid production and stimulation of d- and l-lactate dehydrogenases (LDH) of parent Lactobacillus lactis NCIM 2368 and its mutant RM2-24 generated after UV mutagenesis. Both the parent and mutant strains were evaluated for d-lactic acid production in control and modified media. The modified media did not show remarkable effect on lactic acid production in case of parent whereas mutant exhibited significant enhancement in d-lactic acid production along with the appearance of l-lactic acid in the broth...
August 8, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28797075/arginine-metabolic-endotypes-related-to-asthma-severity
#20
Weiling Xu, Suzy A A Comhair, Allison J Janocha, Abigail Lara, Lori A Mavrakis, Carole D Bennett, Satish C Kalhan, Serpil C Erzurum
AIMS: Arginine metabolism via inducible nitric oxide synthase (iNOS) and arginase 2 (ARG2) is higher in asthmatics than in healthy individuals. We hypothesized that a sub-phenotype of asthma might be defined by the magnitude of arginine metabolism categorized on the basis of high and low fraction of exhaled nitric oxide (FENO). METHODS: To test this hypothesis, asthmatics (n = 52) were compared to healthy controls (n = 51) for levels of FENO, serum arginase activity, and airway epithelial expression of iNOS and ARG2 proteins, in relation to clinical parameters of asthma inflammation and airway reactivity...
2017: PloS One
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