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https://www.readbyqxmd.com/read/29334335/simultaneous-formation-of-polycyclic-aromatic-hydrocarbons-pahs-and-heterocyclic-aromatic-amines-hcas-in-gas-grilled-beef-satay-at-different-temperatures
#1
A K Nor Hasyimah, S Jinap, M Sanny
This study investigated the simultaneous formation of polycyclic aromatic hydrocarbons (PAHs) and heterocyclic aromatic amines (HCAs) in gas-grilled beef satay at different temperatures (150°C, 200°C, 250°C, 300°C, and 350°C). Solid-phase extraction (SPE) was used for sample clean-up. Fifteen PAHs were determined using high performance liquid chromatography with fluorescence detection (HPLC-FLD) and nine HCAs were quantified using liquid chromatography tandem-mass spectrometry (LC-MS/MS) with a gradient programme...
January 15, 2018: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/29333000/distributions-of-emissions-intensity-for-individual-beef-cattle-reared-on-pasture-based-production-systems
#2
G A McAuliffe, T Takahashi, R J Orr, P Harris, M R F Lee
Life Cycle Assessment (LCA) of livestock production systems is often based on inventory data for farms typical of a study region. As information on individual animals is often unavailable, livestock data may already be aggregated at the time of inventory analysis, both across individual animals and across seasons. Even though various computational tools exist to consider the effect of genetic and seasonal variabilities in livestock-originated emissions intensity, the degree to which these methods can address the bias suffered by representative animal approaches is not well-understood...
January 10, 2018: Journal of Cleaner Production
https://www.readbyqxmd.com/read/29331862/preliminary-investigation-of-the-use-of-raman-spectroscopy-to-predict-meat-and-eating-quality-traits-of-beef-loins
#3
Stephanie M Fowler, Heinar Schmidt, Remy van de Ven, David L Hopkins
A preliminary investigation was conducted to determine the potential for a handheld Raman spectroscopic device to predict sensory traits determined by an untrained consumer panel. Measurement of 45 beef loins (M. longissimus lumborum) was conducted using a 671nm handheld Raman spectroscopic device. Samples were then held frozen until testing by an untrained sensory panel. Sections were also excised to determine shear force values and other indicators of meat quality. Derived models suggest that the Raman spectroscopic device can predict juiciness and tenderness, with correlations between predicted and observed values (ρ) of 0...
January 3, 2018: Meat Science
https://www.readbyqxmd.com/read/29327395/effects-of-traditional-chinese-medicine-formula-on-ruminal-fermentation-enzyme-activities-and-nutrient-digestibility-of-beef-cattle
#4
Zhi Zhu, Zhen-Hui Song, Li-Ting Cao, Yong Wang, Wen-Zhang Zhou, Pei Zhou, Fu-Yuan Zuo
This study was conducted to evaluate effects of traditional Chinese medicine formula (TCMF) combined with several herbs on ruminal fermentation, enzyme activities and nutrient digestibility. Twenty finishing bulls were assigned to control or different TCMFs (Yufeisan-1, -2, -3; 2.5% dry matter (DM) in concentrate). Results showed that DM intake was higher (P < 0.05) in the Yufeisan-3 group than others. Compared to control, apparent digestibility of crude protein and neutral detergent fiber were increased (P < 0...
January 12, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29325733/associations-of-gbp2-gene-copy-number-variations-with-growth-traits-and-transcriptional-expression-in-chinese-cattle
#5
REVIEW
Gui-Min Zhang, Li Zheng, Hua He, Cheng-Chuang Song, Zi-Jing Zhang, Xiu-Kai Cao, Chu-Zhao Lei, Xian-Yong Lan, Xing-Lei Qi, Hong Chen, Yong-Zhen Huang
Copy number variations (CNVs) recently have been recognized as another important genetic variability followed single nucleotide polymorphisms (SNPs). The guanylate binding protein 2 (GBP2) gene plays an important role in cell proliferation. This study was performed to determine the presence of GBP2 CNV (relative to Angus cattle) in 466 individuals representing six main cattle breeds from China, identify its relationship with growth, and explore the biological effects of gene expression. There were two CNV regions in the GBP2 gene, for three types, CNV1 loss type (relative to Angus cattle) was more frequent in XN than other breeds, and CNV2 loss type (relative to Angus cattle) was more frequent in XN and CDM than other breeds...
January 8, 2018: Gene
https://www.readbyqxmd.com/read/29324978/effect-of-fish-meal-supplementation-on-luteal-sensitivity-to-intrauterine-infusions-of-prostaglandin-f2alpha-in-the-bovine
#6
Michele R Plewes, Jessica C Cedillo, Patrick D Burns, Peter E Graham, Jason E Bruemmer, Terry E Engle
Progesterone is a steroid hormone secreted from the corpus luteum (CL), which is responsible for establishment and maintenance of pregnancy. Early embryonic mortality often occurs due to inadequate regulation of uterine prostaglandin (PG) F2alpha secretion, leading to decrease in progesterone and loss of pregnancy. The objective of the current study was to determine the effects of fish meal supplementation on luteal sensitivity to intrauterine infusions of PGF2alpha. Non-lactating beef cows received corn gluten meal or fish meal supplementation for 60-days...
January 9, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29315594/the-influence-of-acid-whey-on-the-antioxidant-peptides-generated-to-reduce-oxidation-and-improve-colour-stability-in-uncured-roasted-beef
#7
Karolina M Wójciak, Paulina Kęska, Anna Okoń, Elżbieta Solska, Justyna Libera, Zbigniew J Dolatowski
BACKGROUND: The effect of marinating beef in acid whey on the generated antioxidant peptides and their influence on lipid oxidation, colour stability, sensory analysis and protein degradation products in uncured roasted beef stored six weeks in vacuum conditions (T = 4°C) were determined. Measurements of the pH value, water activity, oxidation-reduction potential, colour, TBARS, the cutting force, texture and amino acid profile, the total content of peptides, antioxidant activity of isolated peptides were conducted immediately after production and during 42 days of storage...
January 9, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29311520/validation-of-a-novel-timed-artificial-insemination-protocol-in-beef-cows-with-a-functional-corpus-luteum-detected-by-ultrasonography
#8
Hisashi Funakura, Ayumi Shiki, Yuji Tsubakishita, Shogo Mido, Hiromu Katamoto, Go Kitahara, Takeshi Osawa
This study aimed to clarify the feasibility of a novel timed artificial insemination (TAI) protocol using ultrasonography, and to determine the associations between the ovarian component and fertility. In Experiment 1,272 Japanese Black cows with a corpus luteum (CL) ≥ 18 mm in diameter were divided randomly into either the TRT group (134 cows that were administered gonadotropin-releasing hormone [GnRH] 56 h [day 2] after prostaglandin F2α [PGF] administration [day 0], followed by TAI 16-20 h later) or the CN-1 group (138 cows that were administered PGF followed by AI after estrus detection)...
January 5, 2018: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/29310070/assessment-of-heavy-metals-in-raw-food-samples-from-open-markets-in-two-african-cities
#9
Yannick Nuapia, Luke Chimuka, Ewa Cukrowska
The present study was performed to assess the level of biologically potent metallic elements (Al, Cd, Cr, Cu, Hg, Mn, Pb and Zn), metalloid (As) and non-metal (Se) in different raw food from open markets in Kinshasa (Democratic Republic of Congo) and Johannesburg (South Africa). Hundred twenty different food samples comprising of cabbage, bean, beef and fish were collected, digested in the microwave system and analysed for trace metals using ICP-OES, ICP-MS and mercury analyser. The obtained results were used to evaluate the health risk of these elements via consumption of foods...
December 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/29310034/the-effect-of-month-farm-type-and-latitude-on-the-level-of-anaemia-associated-with-theileria-orientalis-ikeda-type-infection-in-new-zealand-cattle-naturally-infected-at-pasture
#10
K E Lawrence, R L Sanson, A M J McFadden, D J Pulford, W E Pomroy
Commencing in 2012, an epidemic of infectious bovine anaemia associated with Theileria orientalis Ikeda type has been present in New Zealand. The aims of this study were to analyse the temporal and spatial effects of T. orientalis Ikeda type infection on the sample submission rates and haematocrits of infected cattle over the first two years of the New Zealand epidemic. The data were collected from 30/08/2012 to 28/11/2014 and included all samples that met the case definition for Theileria associated bovine anaemia (TABA) and tested positive for T...
December 28, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29307807/application-of-ultrasound-treatment-for-improving-the-physicochemical-functional-and-rheological-properties-of-myofibrillar-proteins
#11
Amir Amiri, Parisa Sharifian, Nafiseh Soltanizadeh
The aim of this study was to evaluate the impact of duration (10, 20 and 30min) and power (100 and 300W) of high-intensity ultrasound (20kHz) on physicochemical properties of beef myofibrillar proteins in order to investigate novel process for modification of its functional characteristics. Results showed that augmentation of duration and power of ultrasound led to enhance pH. Also, the water holding capacity and gel strength were improved by increasing pH. The highest value in pH, reactive sulfhydryl content, water holding capacity and gel strength was obtained in sample subjected to 30min of ultrasound at 300W...
January 4, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29307318/outbreak-epidemiologically-linked-with-a-composite-product-of-beef-mechanically-separated-chicken-and-textured-vegetable-protein-contaminated-with-multiple-serotypes-of-salmonella-enterica-including-multidrug-resistant-infantis-california-2016
#12
J A Hutchinson, C Wheeler, J C Mohle-Boetani
A salmonellosis outbreak occurred at a California prison in April and May 2016. In a cohort study of 371 inmates, persons who consumed dishes from the prison kitchen made from ground meat had a higher attack rate (15%) than those who did not (4%) (risk ratio 3.4, 95% CI 1.1-10.6). The ground meat product was composed exclusively of beef, mechanically separated chicken (MSC) and textured vegetable protein; eight of eight lots of the product collected from the prison and processing facility were contaminated with Salmonella enterica of eight serotypes and 17 distinct PFGE patterns, including multidrug-resistant S...
January 8, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29306199/effect-of-composting-and-soil-type-on-dissipation-of-veterinary-antibiotics-in-land-applied-manures
#13
Chaoqi Chen, Partha Ray, Katharine F Knowlton, Amy Pruden, Kang Xia
The objective of this study was to determine the fate of commonly used veterinary antibiotics in their naturally excreted form when manure-based amendments are applied to soil. Beef cattle were administered sulfamethazine, tylosin, and chlortetracycline and dairy cows were treated with pirlimycin. The resulting manure was composted for 42 d under static or turned conditions and applied at agronomic N rates to sandy, silt, and silty clay loam soils and compared with amendment with corresponding raw manures in sacrificial microcosms over a 120-day period...
December 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/29304782/prevalence-of-bovine-viral-diarrhoea-virus-bvdv-bovine-herpes-virus-1-bhv-1-leptospirosis-and-neosporosis-and-associated-risk-factors-in-161-irish-beef-herds
#14
Damien Barrett, Mervyn Parr, John Fagan, Alan Johnson, Jamie Tratalos, Francis Lively, Michael Diskin, David Kenny
BACKGROUND: There are limited data available, in Ireland or elsewhere, to determine the extent of exposure to various endemic diseases among beef cows and factors associated with exposure to causative pathogens. The objectives of this study were to determine the herd and within herd prevalence of Bovine Viral Diarrhoea Virus (BVDV), Bovine Herpes Virus 1 (BHV-1), Leptospirosis and Neosporosis in a large scale study of commercial beef herds on the island of Ireland, and to examine herd level factors associated with exposure to these pathogens in these herds...
January 6, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29304181/public-opinion-towards-castration-without-anaesthesia-and-lack-of-access-to-pasture-in-beef-cattle-production
#15
Dayane Lemos Teixeira, Rafael Larraín, Oscar Melo, María José Hötzel
Recent publications have shown that citizens in developing nations are gaining interest in farm animal welfare. The aims of this study were to assess the opinion of Chilean citizens about surgical castration without anaesthesia and lack of access to pasture in beef cattle production, to investigate how involvement in livestock production influences opinions, and to evaluate if different types of information would affect their opinion towards these management practices. The study was carried out in the Metropolitan Region of Santiago, Chile, and consisted of two surveys with 400 participants in each study...
2018: PloS One
https://www.readbyqxmd.com/read/29303599/proteomic-analysis-of-peroxynitrite-induced-protein-nitration-in-isolated-beef-heart-mitochondria
#16
M Kohutiar, A Eckhardt, I Mikšík, P Šantorová, J Wilhelm
Mitochondria are exposed to reactive nitrogen species under physiological conditions and even more under several pathologic states. In order to reveal the mechanism of these processes we studied the effects of peroxynitrite on isolated beef heart mitochondria in vitro. Peroxynitrite has the potential to nitrate protein tyrosine moieties, break the peptide bond, and eventually release the membrane proteins into the solution. All these effects were found in our experiments. Mitochondrial proteins were resolved by 2D electrophoresis and the protein nitration was detected by immunochemical methods and by nano LC-MS/MS...
January 5, 2018: Physiological Research
https://www.readbyqxmd.com/read/29301446/real-time-estimation-of-lesion-depth-and-control-of-radiofrequency-ablation-within-ex-vivo-animal-tissues-using-a-neural-network
#17
Yearnchee Curtis Wang, Terence Chee-Hung Chan, Alan Varteres Sahakian
BACKGROUND: Radiofrequency ablation (RFA), a method of inducing thermal ablation (cell death), is often used to destroy tumours or potentially cancerous tissue. Current techniques for RFA estimation (electrical impedance tomography, Nakagami ultrasound, etc.) require long compute times (≥ 2 s) and measurement devices other than the RFA device. This study aims to determine if a neural network (NN) can estimate ablation lesion depth for control of bipolar RFA using complex electrical impedance - since tissue electrical conductivity varies as a function of tissue temperature - in real time using only the RFA therapy device's electrodes...
January 4, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29298666/fast-genomic-prediction-of-breeding-values-using-parallel-markov-chain-monte-carlo-with-convergence-diagnosis
#18
Peng Guo, Bo Zhu, Hong Niu, Zezhao Wang, Yonghu Liang, Yan Chen, Lupei Zhang, Hemin Ni, Yong Guo, El Hamidi A Hay, Xue Gao, Huijiang Gao, Xiaolin Wu, Lingyang Xu, Junya Li
BACKGROUND: Running multiple-chain Markov Chain Monte Carlo (MCMC) provides an efficient parallel computing method for complex Bayesian models, although the efficiency of the approach critically depends on the length of the non-parallelizable burn-in period, for which all simulated data are discarded. In practice, this burn-in period is set arbitrarily and often leads to the performance of far more iterations than required. In addition, the accuracy of genomic predictions does not improve after the MCMC reaches equilibrium...
January 3, 2018: BMC Bioinformatics
https://www.readbyqxmd.com/read/29289716/identification-of-offal-adulteration-in-beef-by-laser-induced-breakdown-spectroscopy-libs
#19
Hasan Murat Velioglu, Banu Sezer, Gonca Bilge, Süleyman Efe Baytur, Ismail Hakki Boyaci
Minced meat is the major ingredient in sausages, beef burgers, and similar products; and thus it is the main product subjected to adulteration with meat offal. Determination of this kind of meat adulteration is crucial due to religious, economic and ethical concerns. The aim of the present study is to discriminate the beef meat and offal samples by using laser induced breakdown spectroscopy (LIBS). To this end, LIBS and multivariate data analysis were used to discriminate pure beef and offal samples qualitatively and to determine the offal mixture adulteration quantitatively...
December 6, 2017: Meat Science
https://www.readbyqxmd.com/read/29289714/whole-cottonseed-vitamin-e-and-finishing-period-affect-the-fatty-acid-profile-and-sensory-traits-of-meat-products-from-nellore-cattle
#20
Adrielle M Ferrinho, Renata T Nassu, Noelia Aldai, Leire Bravo-Lamas, Maísa L N Furlan, Beatriz M Toda, Bruno L Utembergue, Romulo G Rezende, Lenise F Mueller, Joyce J M Furlan, Mariana Zanata, Fernando Baldi, Angélica S C Pereira
This study investigated how different finishing periods and the inclusion of whole cottonseed and vitamin E in diets fed to feedlot cattle affect meat lipid composition and sensory traits of fresh beef and hamburgers. Fifty-four Nellore bulls were fed 3 different diets (C: control; WCS: 30% whole cottonseed; WCSE: 30% whole cottonseed plus vitamin E) during finishing periods of 83, 104, and 111days. The inclusion of cottonseed did not affect saturated fatty acid levels (SFA), but increased the levels of certain polyunsaturated fatty acids (PUFA) in meat...
December 5, 2017: Meat Science
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