The effects of breed, breeding system and other factors on lamb mortality: 1. Causes of death and effects on the incidence of losses

1983 ◽  
Vol 100 (3) ◽  
pp. 539-551 ◽  
Author(s):  
G. Wiener ◽  
Carol Woolliams ◽  
N. S. M. Macleod
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
Breeding System ◽  
Causes Of Death ◽  
Inbred Lines ◽  
Congenital Defects ◽  
Post Mortem ◽  
Size Type ◽  
Upland Grassland ◽  
Better Than

SUMMARYThe incidence of lamb mortality from birth to 8 months of age has been studied over a 6-year period in an upland, grassland flock of sheep comprising the Scottish Blackface, Cheviot and Welsh Mountain breeds and the crosses among these breeds. Each breed and cross-bred type was maintained at varying levels of inbreeding. Approximately half the lambs which died were stillborn or dead on the day of birth, nearly 40% died thereafter but before weaning and about 10% after weaning.Post-mortem examinations on 586 of the 632 lambs which died from among the 2453 born attributed death on average to two causes per lamb. Approximately 11% of the causes were stillbirths or delayed births; 11% were cases of dystokia; congenital defects of various types accounted for about 10% of the causes; 25% made reference to weakly lamb, exposure or starvation; 14% to infectious diseases and 16% to noninfectious diseases. The extent to which causes of death occur together is examined.Breeds differed in mortality rate with the Welsh the lowest and Cheviot the highest. Cross-breds were better than the average of the pure breeds but this advantage emerged only in the period between 3 days and. 6 weeks of age. Inbreeding, both of dam and of lamb, increased mortality. Lambs from dams which were crosses of inbred lines had the best survival. Litter size, type of rearing, parity of dam, sex of lamb and birth weight also had significant effects on mortality rate.

The effects of breed, breeding system and other factors on lamb mortality: 2. Factors influencing the incidence of delayed birth, dystokia, congenital defects and miscellaneous causes of early death

1983 ◽  
Vol 100 (3) ◽  
pp. 553-561 ◽  
Author(s):  
Carol Woolliams ◽  
G. Wiener ◽  
N. S. M. Macleod
Keyword(s):  
Birth Weight ◽  
Causes Of Death ◽  
Early Death ◽  
Inbred Lines ◽  
Inbreeding Coefficient ◽  
Congenital Defects ◽  
Significant Extent ◽  
Skeletal Defects ◽  
Brain Haemorrhage ◽  
Birth Type

SUMMARYThe incidence of a number of causes of death of lambs around the time of birth was examined in relation to breed, inbreeding, birth weight, birth type, sex of lamb, week of birth and parity. Data were from a grazing flock on an upland farm over a 6-year period. The breeds were the Scottish Blackface, Cheviot, and Welsh Mountain and the crosses among them. Each breed and cross was maintained at five levels of inbreeding ranging from zero to 59% inbreeding coefficient.The incidence of delayed birth varied significantly among the breeds and crosses with the Welsh having the lowest incidence. Compared with the pure breeds the crosses showed a lower incidence of both delayed birth and preparturient deaths, but significantly only for the latter.Dystokia was classified according to whether it arose from the relative dimensions of lamb and dam or from malpresentation. For both types the heaviest lambs had the highest incidence but the association with birth weight was much stronger for dystokia involving dimensions. Breed variation was not significant, but cross-breds had the highest frequency for the dimensions category and the lowest for malpresentation. Singles were at greater risk than twins as were lambs born to a first parity.Congenital defects as a cause of death were divided into six categories. Only skeletal defects varied significantly among breeds and the incidence increased with inbreeding, but crosses of inbred lines did not have the lowest frequency. For congenital defects overall and for hydrocephalus and hydronephrosis in particular, line crosses (noninbred) had the lowest incidence and 25% inbred lambs the highest, the frequency declining with further inbreeding. None of the other factors considered affected variation in the incidence of any of these defects to a significant extent.Liver rupture and brain haemorrhage were most frequent in heavy lambs, singles and lambs born to a first parity dam.

The effects of breed, breeding system and other factors on lamb mortality: 3. Factors influencing the incidence of weakly lambs as a cause of death

1983 ◽  
Vol 100 (3) ◽  
pp. 563-570 ◽  
Author(s):  
Carol Woolliams ◽  
G. Wiener ◽  
N. S. M. Macleod
Keyword(s):  
Birth Weight ◽  
Cause Of Death ◽  
Breeding System ◽  
Causes Of Death ◽  
Inbred Lines ◽  
Factors Influencing ◽  
Line Cross ◽  
Low Incidence

SUMMARYThe incidence of lamb mortality from weakness at birth, underdevelopment, exposure and starvation was examined over 6 years in an upland flock and analysed in relation to breed, breeding system and other factors. These causes accounted for more than a quarter of the deaths and contributed to many more.The frequency of death due to these causes was greater in lambs light at birth. The incidence of these causes of death differed significantly between the breeds, Scottish Blackface, Cheviot and Welsh Mountain and their crosses, but for the separate categories breed variation was significant only for the incidence of death by starvation, which was also less frequent in cross-breds than purebreds. Mortality from several of these causes was increased by inbreeding (25–59%), but decreased by crossing inbred lines. Lambs born to line-cross or other non-inbred dams had a relatively low incidence of these various causes of death. For underdeveloped lambs variation due to maternal inbreeding was significant. When classes were adjusted for difference in birth weight, breed variation in mortality was greatly enhanced but variation due to inbreeding much reduced.Slightly more twins than single-born lambs died from these causes and triplets fared worst, but such variation was significant only for death from exposure. Mortality from these causes varied significantly with parity of dam, being highest in the first, and mortality in males was slightly but not significantly higher than in females.

scholarly journals Neonatal morbidity and mortality in the pediatric ward at the Ambohimiandra Antananarivo Madagascar hospital

2018 ◽  
Vol 6 (6) ◽  
pp. 1871
Author(s):  
Safidisoa N. Razanamanana ◽  
Lovaniaina Ravelomanana ◽  
Emilson JPR Andriatahirintsoa ◽  
Noeline Ravelomanana
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
Neonatal Death ◽  
Causes Of Death ◽  
Neonatal Morbidity ◽  
Neonatal Infection ◽  
Cross Sectional Study ◽  
Morbidity And Mortality ◽  
Cross Sectional ◽  
Ischemic Encephalopathy

Background: The 28 firsts days of life have high-risk of diverse aggression. To achieve the goal of ODD3 in reducing preventable neonatal death, our study was to evaluate main pathologies of newborn, newborn’s mortality.Methods: This is a retrospective descriptive and analytical cross-sectional study extending over a period of 8 months, December 2014 to July 2015.Results: We collected 132 newborn, the sex ratio was 1.13. Main newborn’s pathologies are neonatal infection (59.85%). Mortality rate was 14.39% and majority of neonatal death occurs early (73.68% of all deaths). Main causes of death are neonatal infection by septic shock. The most lethal pathology was hypoxic-ischemic encephalopathy. We have identified as a risk factor for neonatal death: admission age of 24 hours or less (OR 7; 95% CI 2.5-20.10; p = 0.00006), presence of resuscitation at birth (OR 3.48, 95% CI 1.28-9.44, p = 0.01), Apgar index less than 7 at the fifth minute (OR 4.22, 95% CI 2.25-14.87, p = 0.03) and birth weight less than 2500g (OR 3.80, 95% CI 1.39-10.36, p = 0.006).Conclusions: The mortality rate remains high. The prevention of low birth weight, asphyxia and infections has shown strategies to reduce neonatal morbidity and mortality.

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.

The effects of breed, breeding system and other factors on lamb mortality: 4. Factors influencing the incidence of infectious and non-infectious diseases as causes of death

1983 ◽  
Vol 100 (3) ◽  
pp. 571-580 ◽  
Author(s):  
N. S. M. Macleod ◽  
G. Wiener ◽  
Carol Woolliams
Keyword(s):  
Infectious Disease ◽  
Escherichia Coli ◽  
Birth Weight ◽  
Infectious Diseases ◽  
Breeding System ◽  
Respiratory Diseases ◽  
Causes Of Death ◽  
Fusobacterium Necrophorum ◽  
Factors Influencing ◽  
The Cross

SUMMARYThe incidence of various infectious and non-infectious diseases as causes of death in lambs up to 8 months of age was studied in relation to breed, inbreeding and other factors. The data from an upland grazing flock covered 6 years and involved the Scottish Blackface, Cheviot and Welsh Mountain breeds and the crosses among them.Infectious and non-infectious diseases were directly responsible for almost a quarter of the mortality and their presence contributed to many more deaths. The organisms mainly responsible were Escherichia coli, Pasteurella spp. and Fusobacterium necrophorum.The incidence of infectious diseases in general and enteritis in particular varied significantly between the breeds and was lower in the cross-breds than in the purebreds. Variation between the breeds in the incidence of non-infectious diseases was statistically significant only in respect of digestive upsets for which there was a similar ranking of breeds to that for infectious disease.Inbreeding of the lamb (25–59%) significantly increased the incidence of infectious diseases, especially respiratory diseases, but not of non-infectious diseases. There was little difference between singles and twins in susceptibility to disease. The lower the birth weight of the lamb the greater the risk, particularly of non-infectious disease.

scholarly journals Mortality rate of ostrich chicks associated with impaction: a case report.

2021 ◽  
Author(s):  
M. R. Kekana
Keyword(s):  
Weight Loss ◽  
Mortality Rate ◽  
Causes Of Death ◽  
Clinical Symptoms ◽  
Post Mortem ◽  
Sand Soil ◽  
Post Mortem Examination ◽  
The Common ◽  
Small Intestines ◽  
Loss Of Appetite

Abstract Post-mortem examination of 138 ostrich hatchlings aged 1 week to 6 months showed impaction of the proventriculus, gizzard, and small intestines caused by ingestion of soil, stones, sand and sticks. Chicks aged 7 to 12 weeks had a higher incidence of impaction. Loss of appetite, weight loss, isolation and inability to stand were among the common clinical symptoms. Sand, soil, stones, sticks, and wires were discovered during the post mortem examination. Impaction accounted for 20% of mortality rate. Stomach impaction is one of the leading causes of death in ostrich chicks for the first few months post-hatch under a commercial ostrich production.

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.  

scholarly journals Prospective cohort study of mortality in very low birthweight infants in a single centre in the Eastern Cape province, South Africa

2021 ◽  
Vol 5 (1) ◽  
pp. e000918
Author(s):  
Isabel A Michaelis ◽  
Ingeborg Krägeloh-Mann ◽  
Ncomeka Manyisane ◽  
Mikateko C Mazinu ◽  
Esme R Jordaan
Keyword(s):  
South Africa ◽  
Cohort Study ◽  
Birth Weight ◽  
Mortality Rate ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Low Birthweight ◽  
Eastern Cape Province ◽  
Eastern Cape ◽  
Overall Mortality

BackgroundNeonatal mortality is a major contributor worldwide to the number of deaths in children under 5 years of age. The primary objective of this study was to assess the overall mortality rate of babies with a birth weight equal or below 1500 g in a neonatal unit at a tertiary hospital in the Eastern Cape Province, South Africa. Furthermore, different maternal-related and infant-related factors for higher mortality were analysed.MethodsThis is a prospective cohort study which included infants admitted to the neonatal wards of the hospital within their first 24 hours of life and with a birth weight equal to or below 1500 g. Mothers who consented answered a questionnaire to identify factors for mortality.Results173 very low birth weight (VLBW) infants were recruited in the neonatal department between November 2017 and December 2018, of whom 55 died (overall mortality rate 32.0%). Twenty-three of the 44 infants (53,5%) with a birth weight below 1000 g died during the admission. One hundred and sixty-one mothers completed the questionnaire and 45 of their babies died.Main factors associated with mortality were lower gestational age and lower birth weight. Need for ventilator support and sepsis were associated with higher mortality, as were maternal factors such as HIV infection and age below 20 years.ConclusionThis prospective study looked at survival of VLBW babies in an underprivileged part of the Eastern Cape of South Africa. Compared with other public urban hospitals in the country, the survival rate remains unacceptably low. Further research is required to find the associated causes and appropriate ways to address these.

scholarly journals Undetected Causes of Death in Hospitalized Elderly with COVID-19: Lessons from Autopsy

2021 ◽  
Vol 10 (7) ◽  
pp. 1337
Author(s):  
Astrid Malézieux-Picard ◽  
Cecilia Ferrer Soler ◽  
David De Macedo Ferreira ◽  
Emilie Gaud-Luethi ◽  
Christine Serratrice ◽  
...  
Keyword(s):  
Respiratory Failure ◽  
Causes Of Death ◽  
Clinical Findings ◽  
Pathological Examination ◽  
Post Mortem ◽  
Hypoxemic Respiratory Failure ◽  
Hospitalized Elderly ◽  
Acute Decompensation ◽  
Clinical Chart ◽  
Full Body

Background: Mechanisms and causes of death in older patients with SARS-CoV-2 infection are still poorly understood. Methods: We conducted in a retrospective monocentric study, a clinical chart review and post-mortem examination of patients aged 75 years and older hospitalized in acute care and positive for SARS-CoV-2. Full body autopsy and correlation with clinical findings and suspected causes of death were done. Results: Autopsies were performed in 12 patients (median age 85 years; median of 4 comorbidities, mainly hypertension and cardiovascular disease). All cases showed exudative or proliferative phases of alveolar damage and/or a pattern of organizing pneumonia. Causes of death were concordant in 6 cases (50%), and undetected diagnoses were found in 6. Five patients died from hypoxemic respiratory failure due to coronavirus disease 2019 (COVID-19), five had another associated diagnosis and two died from alternative causes. Deaths that occurred in the second week were related to SARS-CoV-2 pneumonia whereas those occurring earlier were related mainly to heart failure and those occurring later to complications. Conclusions: Although COVID-19 hypoxemic respiratory failure was the most common cause of death, post-mortem pathological examination revealed that acute decompensation from chronic comorbidities during the first week of COVID-19 and complications in the third week contributed to mortality.

A comparison of the growth of Brahman and F1 Senepol × Brahman steers in an Indonesian feedlot

2017 ◽  
Vol 57 (10) ◽  
pp. 2096 ◽  
Author(s):  
T. J. Schatz
Keyword(s):  
Mortality Rate ◽  
Bos Taurus ◽  
Average Daily Gain ◽  
Northern Territory ◽  
Feeding Period ◽  
Crossbred Cattle ◽  
Brahman Steers ◽  
Daily Gain ◽  
Better Than ◽  
Live Export

This study compares the performance of F1 Senepol × Brahman steers (F1 SEN) to Brahman (BRAH) steers in an Indonesian feedlot. The focus was to address concerns that crossbred cattle are discriminated against by live export cattle buyers due to a perception that they do not perform as well as Brahmans in Indonesian feedlots. F1 SEN (n = 54) and BRAH (n = 32) steers that had grazed together since weaning at Douglas Daly Research Farm (Northern Territory) were exported to Indonesia and fed for 121 days in a feedlot near Lampung (Sumatra, Indonesia). The average daily gain of the F1 SEN steers over the feeding period was 0.17 kg/day higher (P < 0.001) than the BRAH steers (1.71 vs 1.54 kg/day). As a result the F1 SEN put on an average of 21.6 kg more over the 121-day feeding period and they did not have a higher mortality rate. Consequently, F1 SEN steers performed better than BRAH in an Indonesian feedlot and these results should encourage live export cattle buyers to purchase this type of cattle (Brahman crossed with a tropically adapted Bos taurus breed) with confidence that they can perform at least as well as Brahmans in Indonesian feedlots, although it should be noted that growth rates are usually higher in F1 crosses than in subsequent generations.

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