Performance of Hereford and Friesian × Hereford dams and their Hereford- and Friesian-sired progeny in a Mediterranean environment

1981 ◽  
Vol 21 (109) ◽  
pp. 137 ◽  
Author(s):  
DR Gifford ◽  
PC Stephens ◽  
RJ Lampe ◽  
RW Ponzoni ◽  
HR Day
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
South Australia ◽  
Mortality Rates ◽  
Mediterranean Environment ◽  
Beef Industry ◽  
Slaughter Age ◽  
Maternal Performance ◽  
Calving Difficulty ◽  
Practical Implications

The reproductive and maternal performance of Hereford and Friesian x Hereford dams and the growth and carcase characteristics of their Hereford- and Friesian-sired calves in the Mediterranean environment of South Australia are reported. The two dam breeds did not differ in fertility and their calves had similar mortality rates. Even though calves from Hereford dams were lighter at birth than those from crossbred dams (30.8 vs 33.0 kg), Hereford dams required more assistance at calving (16% vs 8%). There were no differences in birth weight and incidence of calving difficulty of Hereford- and Friesian-sired progeny, but Friesian-sired progeny had a higher mortality rate (11% vs 5%). Calves from crossbred dams were heavier at weaning than those from Hereford dams (274 vs 235 kg) but Hereford- and Friesian-sired progeny were the same weight at weaning. Friesian-sired steers were heavier than Hereford-sired steers at 19- 21 months of age (478 vs 448 kg). The carcase characteristics of progeny of the two dam breeds did not differ significantly at either slaughter age. There were no significant differences in carcase characteristics of Hereford- and Friesian sired progeny slaughtered at 8- 10 months of age. When progeny were slaughtered at 19- 21 months of age, carcases of Friesian-sired steers were heavier (238 vs 222 kg) and leaner (0.49 vs 0.86 mm) than those of Hereford-sired steers. The practical implications of the use of Hereford and Friesian breeds in the southern Australian beef industry are discussed.

Lamb mortality in a flock of East African Blackheaded sheep

1966 ◽  
Vol 66 (1) ◽  
pp. 97-100 ◽  
Author(s):  
J. C. M. Trail ◽  
G. D. Sacker
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
Mortality Rates ◽  
Dry Season ◽  
East African ◽  
Male And Female ◽  
The Mean ◽  
Overall Mortality

1. The effects of birth weight, sex, twinning, parity of dam and dry season on mortality rates of lambs were studied between birth and weaning at 20 weeks in a flock of East African Blackheaded sheep.2. The mean birth weights of non-surviving lambs were lower than those of surviving lambs. Singles from gimmers and twins from ewes were 0.5 and 1.0 lb., respectively, lighter at birth, and had higher mortality rates than singles from ewes. The overall mortality rate of singles from ewes was 16%, singles from gimmers 20% and twins from ewes 28%. Male and female lambs born alive had similar mortality rates (18%).

scholarly journals The Relationship between Birth Weight Discordance and Adverse Infant Mortality among Monozygotic and Dizygotic Twins in Japan, 1995–2008

2020 ◽  
Vol 23 (1) ◽  
pp. 55-60
Author(s):  
Yoko Imaizumi
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
Infant Mortality ◽  
Age Groups ◽  
Mortality Rates ◽  
Vital Statistics ◽  
Infant Mortality Rate ◽  
Infant Deaths ◽  
Mz Twins ◽  
The Relationship

AbstractUsing vital statistics in Japan (1995–2008), 154,578 live-born twin pairs (128,236 monozygotic [MZ] and 180,920 dizygotic [DZ]) were identified. The proportion of severe discordance among live-born twin births was twice as high in Japanese than Caucasian infants. There were 1858 MZ and 1620 DZ infant deaths. Computation of the relationship between infant mortality rate and birth weight discordance among the twins was performed. Discordance levels were classified into seven groups: <5%, five groups from 5–9% to 25–29%, and ≥30%.The mortality rate was significantly higher in MZ than DZ twins for discordances except at 5–9% and 10–14%. The lowest rate for MZ twins was at 5–9% (7.5 per 1000 live twins) and significantly increased from 10–14% (9.4) to ≥30% (83.4), while the lowest rate for DZ twins was at <5% (6.7), which significantly increased at 10–14% (8.0) and from 25–29% (12.1) to ≥30% (35.5). The relationship was also computed in two gestational age groups (<28 and ≥28 weeks). For births at <28 weeks, three discordances (after 20–24%) in MZ twins were associated with adverse mortality rate. For births at ≥28 weeks, the same relationship was obtained after 10–14% in MZ and after 20–24% in DZ twins. The relationship from 2002 to 2008 showed that the mortality rates significantly increased after 10–14% for both types of twins. In conclusion, five discordance levels in MZ and three levels in DZ twins were associated with adverse mortality rates.

scholarly journals Trends in Infant mortality rate and mortality for neonates born at less than 32 weeks and with very low birth weight

2011 ◽  
Vol 19 (4) ◽  
pp. 977-984 ◽  
Author(s):  
René Mauricio Barría-Pailaquilén ◽  
Yessy Mendoza-Maldonado ◽  
Yohana Urrutia-Toro ◽  
Cristian Castro-Mora ◽  
Gema Santander-Manríquez
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
Infant Mortality ◽  
Low Birth Weight ◽  
Causes Of Death ◽  
Very Low Birth Weight ◽  
Secondary Data ◽  
Mortality Rates ◽  
Infant Mortality Rate ◽  
Year 2000

The aim of the study was to assess the trend of the infant mortality rate between 1990-2004 and the neonatal mortality between 2000-2005 in infants born at less than 32 weeks of gestational age or with very low birth-weight. Based on secondary data, infant mortality rate and by its component for Valdivia city were compared with national indicators. Mortality at <32 weeks and <1500g was calculated, establishing causes of death and evaluating its relation with specific interventions, such as the use of surfactant and antenatal corticoids. Since the year 2000, infant mortality rates have stopped their decrease in comparison to the preceding decade and the gap between national and local rates before 2000 was drastically reduced. Mortality at <32 weeks and <1500g varied between 88‰ and 200‰ of liveborns, emphasizing respiratory distress as the main cause of death. The use of corticoids and surfactant was in line with reductions in mortality rates.

scholarly journals A stage-based estimator of daily egg production

2018 ◽  
Vol 75 (5) ◽  
pp. 1638-1646
Author(s):  
Richard McGarvey ◽  
Mike A Steer ◽  
Janet M Matthews ◽  
Tim M Ward
Keyword(s):  
Mortality Rate ◽  
Egg Production ◽  
South Australia ◽  
Mortality Rates ◽  
Egg Mortality ◽  
Age Cohorts ◽  
Wide Range ◽  
Egg Density ◽  
Simulation Testing ◽  
Daily Spawning

Abstract Snapper (Chrysophrys auratus) in South Australia spawn over a wide range of daily times and hatch in ∼1.5 d. Traditional estimates of daily egg production (i) divide sampled eggs into daily age cohorts, e.g. days 1 and 2, (ii) compute cohort ages by assuming that all spawning occurs at a fixed daily peak hour, and (iii) link the estimation of spawning egg density with egg mortality rate by regressing cohort egg densities against cohort age. We propose a method for estimating daily egg production, the number of eggs spawned per unit area per day (P0), without these assumptions. We use a range of estimates of snapper egg mortality rate obtained from prior studies to backcorrect for egg mortality to the age 0 spawning egg density for each stage of eggs individually rather than aggregating into daily cohorts. P0 is estimated as a mean of sample tow densities rather than as a regression intercept. This stage-based P0 estimator avoids errors associated with assuming a fixed daily spawning hour and classifying eggs into day 1 or 2. It requires no regressions of sampled daily cohort egg densities against age, which often provide imprecise estimates of mortality rates. Simulation testing showed 1–2% accuracy for this estimator of P0. The uncertainty of assuming egg mortality rates is moderated by the insensitivity of estimates of P0 to the input value of egg mortality rate.

The Influence of Drought on the Survival of Eggs of Austroicetes cruciata, Sauss. (Orthoptera) in South Australia

1945 ◽  
Vol 35 (3) ◽  
pp. 243-250 ◽  
Author(s):  
L. C. Birch ◽  
H. G. Andrewartha
Keyword(s):  
Mortality Rate ◽  
High Mortality ◽  
South Australia ◽  
Mortality Rates

Drought is the only factor in the environment of the eggs of Austroicetes cruciata that is likely to cause a high mortality rate of the eggs in the field.The eggs may be exposed to drought at various stages of their development. The probability of high mortality due to exposure to drought during the winter is considered to be negligible.The probability of a high mortality rate due to drought when the nymphs are hatching is unimportant. From an analysis of the meteorological records for 50 years, it was estimated that high mortality rates from this cause may occur 12 times in a thousand years at Hawker and less frequently elsewhere in the grasshopper belt.The eggs are exposed to the most severe hazards during the summer. An analysis of the meteorological records shows that severe mortality rates may have occurred as a result of drought in the summer from one to seven times during the 50 years 1891–1940, depending upon the district.

Initial Report of Off-Pump Coronary Artery Bypass Surgery as Sole Therapy for Moderate Ischemic Mitral Regurgitation: Operative and Intermediate-Term Outcome

2005 ◽  
Vol 8 (2) ◽  
pp. 89 ◽  
Author(s):  
Kevin M. Harris ◽  
Avinash Reddy ◽  
Dorothee Aepplii ◽  
Betsy Wilson ◽  
Robert W. Emery
Keyword(s):  
Coronary Artery ◽  
Mortality Rate ◽  
Mitral Regurgitation ◽  
Coronary Artery Bypass Surgery ◽  
Bypass Surgery ◽  
Artery Bypass ◽  
Mortality Rates ◽  
Off Pump ◽  
Moderate Ischemic Mitral Regurgitation ◽  
Pump Coronary Artery Bypass

Background: Patients undergoing on-pump coronary artery bypass surgery (CAB) with coexistent moderate ischemic mitral regurgitation (IMR) have a significant mortality rate compared to patients without MR. The mortality rate is elevated both perioperatively (0%-12% mortality), as well as over a 1- and 2-year postoperative period (15%-25%). It is thought that some patients are best served by off-pump CAB (OPCAB); however, outcomes have not been reported for such patients with coexistent moderate IMR. Methods: We reviewed the independent database of patients undergoing OPCAB between 1995 and 2002 to find 989 patients, 17 (1.7%) of whom had moderate or moderately severe MR. Patients were contacted and clinical and echocardiographic data were obtained. Results: The patient group consisted of 11 men and 6 women (age, 65 15 years). The study group had a PA pressure of 52 14, creatinine of 1.6 0.7, and left ventricular ejection fraction of 43 18. Nine patients (53%) had advanced New York Heart Association (class III-IV) heart failure. Mortality rates perioperatively and at 1, 2, and 3 years were 0%, 6.25% (1/16), 12.5% (2/16), and 38% (4/8), respectively. At the time of this report, no patient had returned for a reparative procedure. Conclusion: In patients felt to be best served by OPCAB with ischemic MR, operative and intermediate mortality rates are remarkably similar to those previously reported for on-pump series. These data underscore the continued need to understand which patients undergoing CAB require mitral valve problems to be addressed at the time of surgery.

FAKTOR-FAKTOR YANG BERHUBUNGAN DENGAN KEJADIAN BBLR DI RUMAH SAKIT UMUM DAERAH PALEMBANG BARI TAHUN 2013

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Juliana Widyastuti Wahyuningsih Juliana Widyastuti Wahyuningsih
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
Low Birth Weight ◽  
Random Sampling ◽  
Maternal Age ◽  
Univariate Analysis ◽  
Infant Mortality Rate ◽  
Survey Method ◽  
P Value ◽  
Chi Square

ABSTRACT   Low birth weight (LBW) infants with birth weight is less than 2500 grams, regardless of gestational age. Statistically showed 90 % incidence of LBW obtained in developing countries with a mortality rate 35 times higher tinggi.Di South Sumatra Province Infant Mortality Rate ( IMR ) is 29 per 1,000 live births. In Palembang BARI hospitals incidence of LBW in 2013 amounted to 317 cases . The purpose of this study is to determine is there a relationship between the factors of age, education, and parity with the incidence of Low Birth Weight in Palembang BARI hospitals in 2013. This study used survey method crosss sectional analytic approach. The study population was all women who gave birth and was admitted to hospital obstetrics Palembang BARI installations in 2013 amounted to 901. This research was conducted in February 2014. Samples were taken with a random sampling method sistematic. Analyze data using statistical test Chi - Square. Results of univariate analysis of this study showed that 193 (69.4 %) of the respondents had low birth weight, and 85 (30.6 %) respondents had BBLN. 63 (22.7 %) of respondents with a high risk of maternal age and 215 (77.3 %) of respondents with a low risk of maternal age. 157 (56.5 %) respondents with low education mothers and 121 (43.5 %) of respondents with higher education mothers. 48 (17.3 %) respondents with high parity mothers and 230 (82.7 %) respondents with low parity mothers. So the bivariate analysis showed no significant association between maternal age with the incidence of LBW with P value = 0.035, no significant association between education and the incidence of LBW with P value = 0.006, and no significant relationship between the incidence of low birth weight with parity P value = 0.041. It is recommended for health care workers (midwives) hospital in order to be used as material information regarding the occurrence of LBW and as an input as well as the evaluation of success in good health or when needed to do counseling and care of LBW, especially to mothers who give birth to low birth weight baby.   ABSTRAK Berat badan lahir rendah (BBLR) adalah bayi dengan berat lahir kurang dari 2500 gram tanpa memandang masa gestasi. Secara statistik menunjukkan 90% kejadian BBLR didapatkan di negara berkembang dengan angka kematiannya 35 kali lebih tinggi.Di Propinsi Sumatera Selatan Angka Kematian Bayi (AKB) sebesar 29 per 1.000 kelahiran hidup. Di RSUD Palembang BARI Tahun 2013 angka kejadian BBLR berjumlah 317 kasus. Tujuan Penelitian ini adalah untuk mengetahui adakah hubungan antara faktor umur, pendidikan, dan paritas dengan kejadian Berat Badan Lahir Rendah di RSUD Palembang BARI Tahun 2013. Penelitian ini menggunakan metode survey analitik dengan pendekatan crosss sectional. Populasi penelitian ini adalah semua ibu yang melahirkan dan dirawat inap di instalasi kebidanan RSUD Palembang BARI Tahun 2013 berjumlah 901. Penelitian ini dilakukan pada bulan Februari 2014. Sampel penelitian diambil dengan metode sistematic random sampling. Analisa data menggunakan uji statistik Chi – Square. Hasil penelitian analisis univariat ini menunjukkan bahwa 193 (69,4%) responden mengalami BBLR, dan 85 (30,6%) responden mengalami BBLN. 63 (22,7%) responden dengan umur ibu resiko tinggi dan 215 (77,3%) responden dengan umur ibu resiko rendah. 157 (56,5%) responden dengan ibu pendidikan rendah dan 121 (43,5%) responden dengan ibu pendidikan tinggi. 48 (17,3%) reponden dengan ibu paritas tinggi dan 230 (82,7%) responden dengan ibu paritas rendah. Sehingga analisa bivariat menunjukkan ada hubungan yang bermakna antara umur ibu dengan kejadian BBLR dengan P value = 0,035, ada hubungan yang bermakna antara pendidikan dengan kejadian BBLR dengan P value = 0,006 dan ada hubungan yang bermakna antara paritas dengan kejadian BBLR dengan P value = 0,041. Disarankan bagi petugas kesehatan (bidan) rumah sakit agar dapat dijadikan sebagai bahan informasi mengenai terjadinya BBLR dan sebagai bahan masukan serta evaluasi keberhasilan dalam pelayanan kesehatan yang baik atau bila perlu dilakukannya penyuluhan serta asuhan  tentang BBLR khususnya kepada ibu yang melahirkan Bayi dengan BBLR.  

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