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https://www.readbyqxmd.com/read/28531145/the-occurrence-biosynthesis-and-molecular-structure-of-proanthocyanidins-and-their-effects-on-legume-forage-protein-precipitation-digestion-and-absorption-in-the-ruminant-digestive-tract
#1
REVIEW
Arjan Jonker, Peiqiang Yu
Forages grown in temperate regions, such as alfalfa (Medicago sativa L.) and white clover (Trefolium repens L.), typically have a high nutritional value when fed to ruminants. Their high protein content and degradation rate result, however, in poor utilization of protein from the forage resulting in excessive excretion of nitrogen into the environment by the animal. Proanthocyanindins (also known as condensed tannins) found in some forage legumes such as birdsfoot trefoil (Lotus corniculatus L.), bind to dietary protein and can improve protein utilization in the animal...
May 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28528583/restoration-of-in-situ-fiber-degradation-and-the-role-of-fibrolytic-microbes-and-ruminal-ph-in-cows-fed-grain-rich-diets-transiently-or-continuously
#2
P Pourazad, R Khiaosa-Ard, B U Metzler-Zebeli, F Klevenhusen, Q Zebeli
In this study, we used two different grain-rich feeding models (continuous or transient) to determine their effects on in situ fiber degradation and abundances of important rumen fibrolytic microbes in the rumen. The role of the magnitude of ruminal pH drop during grain feeding in the fiber degradation was also determined. The study was performed in eight rumen-fistulated dry cows. They were fed forage-only diet (baseline), and then challenged with a 60% concentrate diet for 4 weeks, either continuously (n=4 cows) or transiently (n=4 cows)...
May 22, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28528531/diversity-and-distribution-of-ticks-from-domestic-ruminants-in-lebanon
#3
Mayssaa Fawaz Dabaja, Maria Tempesta, Ali Bayan, Gesualdo Vesco, Grazia Greco, Grazia Greco, Alessandra Torina, Valeria Blanda, Francesco La Russa, Salvatore Scimeca, Rossella Lelli, Mohamad Ezzedine, Hussein Mortada, Didier Raoult, Pierre Edouard Fournier, Mohamad Mortada
Ticks (Acari: Ixodidae) are ectoparasites infesting livestock in every geographic area in the world and they are vectors of several viral, bacterial, and protozoan pathogens to animals and humans worldwide. A deep knowledge of the geographical distribution of these arthropods would have a key role in the control of tick-borne diseases. Few data are available about tick presence in domestic ruminants in Lebanon. The study aimed at providing an analysis of tick presence and distribution in Lebanon. Ticks were collected from cattle, sheep, and goats farms distributed in 6 Lebanese provinces between June and September 2014...
April 11, 2017: Veterinaria Italiana
https://www.readbyqxmd.com/read/28527806/endogenous-synthesis-of-milk-oleic-acid-in-dairy-ewes-in-vivo-measurement-using-13-c-labeled-stearic-acid
#4
P G Toral, P Frutos, D Carreño, G Hervás
The use of stable isotopes is a reliable and risk-free alternative to radioactive tracers for directly examining in vivo fatty acid (FA) metabolism. However, very limited information is available in ruminants, and none is available in sheep. Therefore, we conducted an experiment in dairy ewes to determine, for the first time in this species, the uptake, Δ(9)-desaturation, and secretion of (13)C-labeled stearic acid (SA) into milk with the aim of measuring in vivo endogenous synthesis of milk oleic acid (OA) and stearoyl-CoA desaturase activity...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28527803/using-brown-midrib-6-dwarf-forage-sorghum-silage-and-fall-grown-oat-silage-in-lactating-dairy-cow-rations
#5
M T Harper, J Oh, F Giallongo, J C Lopes, G W Roth, A N Hristov
Double cropping and increasing crop diversity could improve dairy farm economic and environmental sustainability. In this experiment, corn silage was partially replaced with 2 alternative forages, brown midrib-6 brachytic dwarf forage sorghum (Sorghum bicolor) or fall-grown oat (Avena sativa) silage, in the diet of lactating dairy cows. We investigated the effect on dry matter (DM) intake, milk yield (MY), milk components and fatty acid profile, apparent total-tract nutrient digestibility, N utilization, enteric methane emissions, and income over feed cost...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28527802/abrupt-weaning-reduces-postweaning-growth-and-is-associated-with-alterations-in-gastrointestinal-markers-of-development-in-dairy-calves-fed-an-elevated-plane-of-nutrition-during-the-preweaning-period
#6
M A Steele, J H Doelman, L N Leal, F Soberon, M Carson, J A Metcalf
The benefits of feeding elevated quantities of milk to dairy calves have been well established. However, there is a reluctance to adopt this method of feeding in commercial dairy production because of concerns around growth, health, and ruminal development during weaning. The objective of this study was to characterize the effect of an abrupt (0 d step-down) or gradual (12 d step-down) feeding scheme when calves are fed an elevated plane of nutrition (offered 1.35 kg of milk replacer/d). For this experiment, a total of 54 calves were randomly assigned to an abrupt or a gradual weaning protocol before weaning at 48 d of life...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28527800/from-pre-to-postweaning-transformation-of-the-young-calf-s-gastrointestinal-tract
#7
Sarah J Meale, Frederique Chaucheyras-Durand, Harma Berends, Le Luo Guan, Michael A Steele
The ruminant gastrointestinal tract (GIT) faces the challenge of protecting the host from luminal contents and pathogens, while supporting the absorption and metabolism of nutrients for growth and maintenance. The GIT of the calf in early life undergoes some of the most rapid microbial and structural changes documented in nature, and these adaptations in GIT function make the young calf susceptible to GIT diseases and disorders. Despite these challenges, the calf's GIT has a certain degree of plasticity and can sense nutrient supply and respond to bioactive ingredients...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28527799/effect-of-yeast-supplementation-on-performance-rumination-time-and-rumen-ph-of-dairy-cows-in-commercial-farm-environments
#8
V Ambriz-Vilchis, N S Jessop, R H Fawcett, M Webster, D J Shaw, N Walker, A I Macrae
The aims of the present study were to evaluate the effects of live yeast supplementation (Vistacell MUCL 39855, AB Vista, Marlborough, UK) on performance, rumination time, and rumen pH on dairy cows in commercial farm environments. Three trials were carried out, the trials lasted 12 (trial 1), 15 (trial 2), and 19 wk (trial 3). In each trial, 14 multiparous Holstein dairy cows were allocated to 2 groups that received (trial 1) a standard diet plus yeast, (trial 2) an acidogenic diet plus yeast, and (trial 3) grazing pasture plus yeast...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28527797/mir-26b-promoter-analysis-reveals-regulatory-mechanisms-by-lipid-related-transcription-factors-in-goat-mammary-epithelial-cells
#9
Hui Wang, Jun Luo, Qiuya He, Dawei Yao, Jiao Wu, Juan J Loor
MicroRNA (miRNA) regulate protein abundance and control diverse aspects of cellular processes and biological functions associated with lipid metabolism. MiR-26b and its host gene CTDSP1 regulate triacylglycerol synthesis by synergistically suppressing the insulin-induced gene 1 (INSIG1); however, the direct regulators of miR-26b expression remain unknown. In the present study, we characterized the activity of a novel putative promoter region in miR-26b. Results revealed that promoter activity and miR-26b expression are dynamically regulated by different transcription factors including peroxisome proliferator-activated receptor gamma (PPARG), sterol regulatory element binding transcription factor 1 (SREBF1), and liver X receptor α (LXRα)...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28526988/identification-of-candidate-genes-for-paratuberculosis-resistance-in-the-native-italian-garfagnina-goat-breed
#10
Francesca Cecchi, Claudia Russo, Daniela Iamartino, Alessia Galiero, Barbara Turchi, Filippo Fratini, Sara Degl'Innocenti, Raffaele Mazza, Stefano Biffani, Giovanna Preziuso, Carlo Cantile
Paratuberculosis disease is a chronic bacterial disease infection of ruminants of global relevance, caused by MAP (Mycobacterium avium subsp. paratuberculosis). The present study was conducted on the Garfagnina goat breed that is an Italian native goat population registered on the Tuscan regional repertory of genetic resources at risk of extinction. Forty-eight adult goats (27 serologically positive to MAP-positive and 21 serologically negative to MAP-negative) belonging to a single flock that had experienced annual mortalities due to MAP infection were identified and genotyped with the Illumina GoatSNP60 BeadChip...
May 19, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28526867/aberrant-functional-connectivity-in-depression-as-an-index-of-state-and-trait-rumination
#11
David Rosenbaum, Alina Haipt, Kristina Fuhr, Florian B Haeussinger, Florian G Metzger, Hans-Christoph Nuerk, Andreas J Fallgatter, Anil Batra, Ann-Christine Ehlis
Depression has been shown to be related to a variety of aberrant brain functions and structures. Particularly the investigation of alterations in functional connectivity (FC) in major depressive disorder (MDD) has been a promising endeavor, since a better understanding of pathological brain networks may foster our understanding of the disease. However, the underling mechanisms of aberrant FC in MDD are largely unclear. Using functional near-infrared spectroscopy (fNIRS) we investigated FC in the cortical parts of the default mode network (DMN) during resting-state in patients with current MDD...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526821/influence-of-soil-moisture-on-codenitrification-fluxes-from-a-urea-affected-pasture-soil
#12
Timothy J Clough, Gary J Lanigan, Cecile A M de Klein, Md Sainur Samad, Sergio E Morales, David Rex, Lars R Bakken, Charlotte Johns, Leo M Condron, Jim Grant, Karl G Richards
Intensively managed agricultural pastures contribute to N2O and N2 fluxes resulting in detrimental environmental outcomes and poor N use efficiency, respectively. Besides nitrification, nitrifier-denitrification and heterotrophic denitrification, alternative pathways such as codenitrification also contribute to emissions under ruminant urine-affected soil. However, information on codenitrification is sparse. The objectives of this experiment were to assess the effects of soil moisture and soil inorganic-N dynamics on the relative contributions of codenitrification and denitrification (heterotrophic denitrification) to the N2O and N2 fluxes under a simulated ruminant urine event...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526787/development-of-multi-well-plate-methods-using-pure-cultures-of-methanogens-to-identify-new-inhibitors-for-suppressing-ruminant-methane-emissions
#13
M R Weimar, J Cheung, D Dey, C McSweeney, M Morrison, Y Kobayashi, W B Whitman, V Carbone, L R Schofield, R S Ronimus, G M Cook
Hydrogenotrophic methanogens typically require strictly anaerobic culturing conditions in glass tubes with overpressures of H2 and CO2 that are both time-consuming and costly. To increase the throughput for screening chemical compound libraries, 96-well microtiter plate methods for the growth of a marine (environmental) methanogen Methanococcus maripaludis strain S2 and the rumen methanogen Methanobrevibacter species AbM4 were developed. A number of key parameters (inoculum size, reducing agents for media preparation, duration of assay, inhibitor solvents and culture volume) were optimised to achieve robust and reproducible growth in a high-throughput microtiter plate format...
May 19, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28524016/towards-practical-application-of-sensors-for-monitoring-animal-health-the-effect-of-post-calving-health-problems-on-rumination-duration-activity-and-milk-yield
#14
Machteld Steensels, Ephraim Maltz, Claudia Bahr, Daniel Berckmans, Aharon Antler, Ilan Halachmi
Three sources of sensory data: cow's individual rumination duration, activity and milk yield were evaluated as possible indicators for clinical diagnosis, focusing on post-calving health problems such as ketosis and metritis. Data were collected from a computerised dairy-management system on a commercial dairy farm with Israeli Holstein cows. In the analysis, 300 healthy and 403 sick multiparous cows were studied during the first 3 weeks after calving. A mixed model with repeated measurements was used to compare healthy cows with sick cows...
May 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28524012/towards-practical-application-of-sensors-for-monitoring-animal-health-design-and-validation-of-a-model-to-detect-ketosis
#15
Machteld Steensels, Ephraim Maltz, Claudia Bahr, Daniel Berckmans, Aharon Antler, Ilan Halachmi
The objective of this study was to design and validate a mathematical model to detect post-calving ketosis. The validation was conducted in four commercial dairy farms in Israel, on a total of 706 multiparous Holstein dairy cows: 203 cows clinically diagnosed with ketosis and 503 healthy cows. A logistic binary regression model was developed, where the dependent variable is categorical (healthy/diseased) and a set of explanatory variables were measured with existing commercial sensors: rumination duration, activity and milk yield of each individual cow...
May 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28522863/effects-of-replacing-leymus-chinensis-with-whole-crop-wheat-hay-on-holstein-bull-apparent-digestibility-plasma-parameters-rumen-fermentation-and-microbiota
#16
Wenjing Niu, Yang He, Chuanqi Xia, Muhammad Aziz Ur Rahman, Qinghua Qiu, Taoqi Shao, Yixun Liang, Linbao Ji, Haibo Wang, Binghai Cao
Twelve Holstein bulls were used in a 4 × 4 Latin square design to investigate the effects of using whole-crop wheat hay (WCWH) as a substitute for Leymus chinensis (LC) on apparent digestibility, plasma parameters, ruminal fermentation, and microbial communities. Experimental treatments were four proportions of WCWH, 0, 33, 67, and 100%, as a substitute for LC (WCWH0, WCWH33, WCWH67, and WCWH100, respectively). The WCWH100 group showed a higher nutritional intake of crude protein (CP) and higher apparent digestibility of organic matter (OM), CP, and ether extract (EE) than the WCWH0 group (P < 0...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522624/-huge-concern-about-increased-risk-of-peste-des-petits-ruminants-entering-europe
#17
(no author information available yet)
No abstract text is available yet for this article.
May 20, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28518043/congenital-malformations-of-calves-infected-with-shamonda-virus-southern-japan
#18
Yoshimasa Hirashima, Shoei Kitahara, Tomoko Kato, Hiroaki Shirafuji, Shogo Tanaka, Tohru Yanase
In 2015 and 2016, we observed 15 malformed calves that were exposed to intrauterine infection with Shamonda virus, a Simbu serogroup orthobunyavirus, in Japan. Characteristic manifestations were arthrogryposis and gross lesions in the central nervous system. Our results indicate that this arbovirus should be considered a teratogenic virus in ruminants.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28517113/differences-between-two-strains-of-ceriporiopsis-subvermispora-on-improving-the-nutritive-value-of-wheat-straw-for-ruminants
#19
Nazri Nayan, Anton S M Sonnenberg, Wouter H Hendriks, John W Cone
AIM: The present study evaluated differences between two strains of Ceriporiopsis subvermispora on improving the nutritive value and in vitro degradability of wheat straw. METHODS AND RESULTS: Wheat straw was treated with the fungi for 7 weeks. Weekly samples were analyzed for ergosterol content, in vitro gas production (IVGP), chemical composition and lignin degrading enzyme activity. Ergosterol data showed CS1 to have a faster initial growth than CS2 and reaching a stationary phase after 3 weeks...
May 18, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28515539/why-does-positive-mental-health-buffer-against-psychopathology-an-exploratory-study-on-self-compassion-as-a-resilience-mechanism-and-adaptive-emotion-regulation-strategy
#20
Hester R Trompetter, Elian de Kleine, Ernst T Bohlmeijer
Growing evidence suggests that positive mental health or wellbeing protects against psychopathology. How and why those who flourish derive these resilient outcomes is, however, unknown. This exploratory study investigated if self-compassion, as it continuously provides a friendly, accepting and situational context for negative experiences, functions as a resilience mechanism and adaptive emotion regulation strategy that protects against psychopathology for those with high levels of positive mental health. Participants from the general population (n = 349) provided measures at one time-point on positive mental health (MHC-SF), self-compassion (SCS-SF), psychopathology (HADS) and negative affect (mDES)...
2017: Cognitive Therapy and Research
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