A dark, firm, dry-like condition in breast meat of roaster chickens condemned for ascites, valgus-varus deformity and emaciation

2000 ◽  
Vol 80 (1) ◽  
pp. 45-49
Author(s):  
J. G. Mallia ◽  
S. Barbut ◽  
J-P. Vaillancourt ◽  
S. W. Martin ◽  
S. A. McEwen
Keyword(s):  
Key Words ◽  
Sensitivity And Specificity ◽  
Varus Deformity ◽  
Pectoralis Major ◽  
Good Sensitivity ◽  
Current Policy ◽  
Breast Meat ◽  
Rapid Tests

Chicken carcasses with dark, firm, dry traits (DFD) are currently condemned in Canada for cyanosis. Reconsideration of the current policy requires tests for distinguishing DFD carcasses from those that are inadequately bled. Birds in other categories such as ascites (AS), emaciation (EM), and valgus-varus deformity (VVD) may also present a dark carcass color. Chickens condemned for DFD and inadequate bleeding (IB), and also for AS, EM and VVD were collected, and visually separated into "light" or "dark" groups. Color (Commission Intern. de l'Eclairage L*a*b*) and pH were measured at slaughter, on four fixed sites of the pectoralis major. pH was highly and negatively correlated with L* for AS (r = –0.57), EM (r = –0.64), and VVD (r = –0.66). The dark classes of EM and VVD were not significantly different (P > 0.05) for pH, L*, and a* from DFD carcasses, but the dark AS class was redder and less acidic than DFD carcasses. Color and pH were not correlated in the inadequately-bled group, which was lighter, less red, and more acidic than the DFD group. Tests based on pH and a*, used to distinguish DFD from inadequately bled carcasses, showed good sensitivity and specificity. The agreement beyond chance between the pH and a* tests was good (Kappa = 0.65). We conclude (1) that a DFD-like condition was present in the dark classes of AS, EM and VVD, and (2) that inadequately bled chickens can be distinguished from those with DFD traits by the use of tests based on pH and a*. Key words: Poultry color, rapid tests, chicken, dark firm dry meat, cyanosis

Comparison of colony and stool blots for detection of enteropathogens by DNA probes

1991 ◽  
Vol 37 (5) ◽  
pp. 407-410
Author(s):  
Mônica A. M. Vieira ◽  
Beatriz E. C. Guth ◽  
Tânia A. T. Gomes
Keyword(s):  
Escherichia Coli ◽  
Key Words ◽  
Sensitivity And Specificity ◽  
Dna Probes ◽  
Type I ◽  
Enteropathogenic Escherichia Coli ◽  
Key Words Dna ◽  
E Coli ◽  
Heat Stable

DNA probes that identify genes coding for heat-labile type I (LT-I) and heat-stable type 1 (ST-I) enterotoxins, enteropathogenic Escherichia coli adherence factor (EAF), and Shigella-like, invasiveness (INV) are used to evaluate the sensitivity and specificity of stool blots in comparison with the sensitivity and specificity of colony blots in detecting enteropathoghens. The sensitivities of the probes in stool blots are 91.7% for the LT-I probe, 76.9% for the ST-I probes, 78.9% for the EAF probe, and 45.5% for the INV probe. The specificity of all probes is higher than 95%. In general, the stool blot method identifies as many if not more LT-I-, ST-I-, and EAF-producing E. coli infections than the colony blots. Key words: DNA probes, stool blots, enteropathogens, diagnosis.

THE EFFECTS OF DIETARY METHIONINE AND LYSINE ON BROILER CHICKEN PERFORMANCE AND BREAST MEAT YIELD

1990 ◽  
Vol 70 (2) ◽  
pp. 673-678 ◽  
Author(s):  
D. HICKLING ◽  
W. GUENTER ◽  
M. E. JACKSON
Keyword(s):  
Weight Gain ◽  
Key Words ◽  
Feed Efficiency ◽  
Broiler Chicken ◽  
Broiler Chicks ◽  
Breast Meat ◽  
Meat Yield ◽  
Breast Meat Yield

An experiment was conducted with 3840 male Ross × Arbor Acres broiler chicks to test the effects of increasing dietary methionine and lysine on performance and breast meat yield. Supplemental methionine and lysine were fed in a 2 × 4 factorial arrangement in both starter (0–3 wk) and finisher (3–6 wk) diets. Methionine was fed at levels of NRC and 112% NRC. Lysine was fed at levels of NRC and 106% NRC, 112% NRC and 118% NRC. Increasing dietary methionine increased weight gain (P < 0.01), feed efficiency (P < 0.01) from 3 to 6 wk, and breast meat yield (P < 0.01) at 6 wk. Increasing dietary lysine caused a curvilinear response in breast meat yield (P < 0.05). Key words: Broiler, lysine, methionine, breast meat

scholarly journals Measuring Driving Fear

2021 ◽  
Author(s):  
Carolin Fischer ◽  
Annette Schröder ◽  
Joanne E. Taylor ◽  
Jens Heider
Keyword(s):  
Construct Validity ◽  
Psychometric Properties ◽  
Clinical Diagnosis ◽  
Sensitivity And Specificity ◽  
Online Survey ◽  
Specific Phobia ◽  
German Language ◽  
Good Sensitivity ◽  
Good Reliability ◽  
Dsm 5

Abstract. Presently, there is no instrument to support the diagnosis of driving fear and its severity. To enable a reliable and valid diagnosis, the 5-item German-language Instrument for Fear of Driving (IFD) was developed. The items, by DSM-5 criteria for a specific phobia, measure the emotional, cognitive, and physiological components of driving fear as well as the degree of avoidance and impairment. The present paper comprises two studies that describe the development of the IFD and its psychometric properties. In Study 1, the IFD was administered to 810 non-clinical participants in an online survey and demonstrated good reliability and construct validity. In Study 2, fifty-four people with a clinical diagnosis, including clinically relevant driving fear, completed the IFD and a clinical interview. The IFD demonstrated good sensitivity and specificity, and a cut-off score resulted in 95% sensitivity and 97% specificity. While the findings are preliminary and further studies with larger samples are needed, the IFD is a promising screening instrument for driving fear and its severity.

scholarly journals Development of the Lebanese insomnia scale (LIS-18): a new scale to assess insomnia in adult patients

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Souheil Hallit ◽  
Hala Sacre ◽  
Chadia Haddad ◽  
Diana Malaeb ◽  
Gloria Al Karaki ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Roc Curve ◽  
Cross Sectional Study ◽  
Adult Patients ◽  
Good Sensitivity ◽  
Cross Sectional ◽  
Five Factors ◽  
Optimal Score ◽  
Positive Predicted Value ◽  
Healthy Control

Abstract Objective To define the development and validation of the Lebanese Insomnia Scale (LIS-18) to be used for the evaluation of insomnia in Lebanese adult patients. Methods A first cross-sectional study, conducted between August 2017 and April 2018, enrolled 789 participants (sample 1). A second sample was recruited in May 2018 to confirm the results obtained from the first sample. Results Five factors derived from the LIS-18 scale items with an Eigenvalue over 1, explaining a total of 59.64% of the variance (Cronbach’s alpha = 0.821). The first ROC curve, comparing participants with diagnosed insomnia to healthy individuals, showed that the optimal score was seen at a cutoff of 58.00, with a good sensitivity and specificity at this cutoff (93.3 and 88.4%, respectively). A second ROC curve, comparing participants taking drug medication for insomnia vs. those not taking drug, showed that the optimal score was seen at a cutoff of 52.50, with a good sensitivity and specificity at this cutoff (89.5 and 80.0%, respectively). A third ROC curve, comparing participants diagnosed by a physician or taking drug medication for insomnia and healthy control without insomnia drug, showed that the optimal score was seen at 51.50, with good sensitivity and specificity at this cutoff as well (90.0 and 78.10%, respectively). The positive predicted value (PPV) of the LIS-18 score in sample 2 was 93.3%, whereas the negative predicted value (NPV) was 88.4%. Conclusion The results demonstrate that the LIS-18 can be used in clinical practice and research to measure insomnia.

Estimates and detection of the PSE problem in young turkey breast meat

1996 ◽  
Vol 76 (3) ◽  
pp. 455-457 ◽  
Author(s):  
Shai Barbut
Keyword(s):  
Key Words ◽  
Meat Color ◽  
Breast Meat ◽  
Turkey Meat ◽  
Color Determination ◽  
L Value ◽  
Pse Meat ◽  
Water Holding

Breast meat color from eight young turkey torn flocks was monitored during the summer. The average L value was 48.5 with a variance of 6 4. Samples with L > 50 showed the PSE problem. Correlations among color, pH, water-holding and texture indicated that a rapid color determination can be used to distinguish PSE meat. Key words: Turkey; meat; pale, soft, exudative; poultry; color

Can Triggering Receptors Expressed on Myeloid Cells be used for Diagnosis of Salmonella Typhi Infection?

2020 ◽  
Vol 20 (9) ◽  
pp. 1488-1493
Author(s):  
Maysaa E.S. Zaki ◽  
Sally Abed ◽  
Mohamed Elegezy ◽  
Muhammed Diasty ◽  
Nashwa Yousef Ebrahim Elkhouly ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Enteric Fever ◽  
Myeloid Cells ◽  
Salmonella Typhi ◽  
Good Sensitivity ◽  
Diagnostic Biomarker ◽  
C Reactive Protein ◽  
Blood Samples ◽  
Reactive Protein

Background: There is a need for rapid and accurate diagnostic biomarker for diagnosis of Salmonella fever. Aims: The aim of the present study was to assess the importance of procalcitonin (PCT), Soluble Triggering Receptors expressed on Myeloid Cells 1 (sTREM1) and C- reactive protein (CRP) in the diagnosis of enteric fever with positive blood culture for S.typhi. Methods: Blood samples were withdrawn from 200 patients with suspected enteric fever and subjected for the determination of CRP, PCT and sTREM-1. Results: The sensitivity and specificity for PCT cut off were 97.7% & 82.5%, for CRP the sensitivity and specificity were 95.3% and 77% and for s-TREM-1 the sensitivity and specificity were 95.3% & 77%. Conclusion: S-TREM-1 may be considered as a novel biomarker for the diagnosis of enteric fever with good sensitivity and specificity.

SEVERITY AND MORTALITY PREDICTION IN ACUTE PARAQUAT POISONING BY SERUM PARAQUAT QUANTITIVE TEST

2017 ◽  
pp. 105-109
Author(s):  
Duc Ngoc Ngo
Keyword(s):  
Key Words ◽  
Sensitivity And Specificity ◽  
Mortality Prediction ◽  
Analytic Study ◽  
Poison Control ◽  
Poison Control Center ◽  
Control Center ◽  
Quantitative Test ◽  
Paraquat Poisoning

Introduction: Acute paraquat poisoning is common in Vietnam. Mortality and severity prediciton of acute paraquat poisoning patient is difficult. Serum paraquat concentration is a useful prognostic fatal value. Objective: Apply quantitative test for serum paraquat concentration to determine the severity and prognose in acute paraquat poisoning patients. Subjects and methods : An observational analytic study included acute paraquat poisoning patients were treated at Poison Control Center of Bach Mai hospital from 4/2015 to 5/2016. Results: 92 patients were included, with 52.6% males and 47,4% females. The average age of the patients was 34.2 ± 14.5. Fifty-two patients were reported dead (62.37%). The patients classifed as survial group were detected to get serum paraquat concentration to be significantly lower than other patients in dead group (2.6 ± 4.92 in comparision with 23.8 ± 27.64, p<0.001), serum paraquat concentration was not correlated with PSS level (p>0.05). SIPP scale was evaluated to be efficient in dead prognosis. The AUROC of SIPP scale was 0.860, p<0.001 (95% CI: 0.782 – 0.938). The value of SIPP = 15 had highest sensitivity and specificity (0.750, 0.767, respectively). Conclusion: Serum paraquat concentration was determined the effective values in estimating the severity and dead prognosis. SIPP Scale was useful for mortality prognosis. Key words: Acute Paraquat poisoning, serum Paraquat concentration

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