Improving production from September-born Merino lambs with a lupin grain supplement and phomopsis-resistant lupin stubbles

1993 ◽  
Vol 33 (6) ◽  
pp. 713 ◽  
Author(s):  
PW Morcombe ◽  
JG Allen
Keyword(s):  
Weight Loss ◽  
Liver Injury ◽  
Western Australia ◽  
First Year ◽  
Ewe Lamb ◽  
Grazing Sheep ◽  
Staple Strength ◽  
Good Productivity ◽  
First Year Of Life ◽  
The Cost

As a means of providing nutrition on dry pasture in the wheatbelt of Western Australia, supplements of lupin grain were fed to late-born Merino lambs and their dams before weaning onto lupin stubble. Each ewe-lamb pair consumed an average 19.5 kg lupin grain over the 46 days before weaning. This produced an extra 3.6 kg (P<0.01) liveweight gain by these lambs compared with their unsupplemented cohorts at weaning. The growth of the weaned lambs grazing phomopsis-resistant lupin stubbles was primarily influenced by the amount of residual lupin grain available to each sheep and liver injury caused by ingestion of phomopsins. In the first 69 days of stubble grazing, sheep stocked at 10ha gained 7.3 kg while those stocked at 20ka gained 2.1 kg (P<0.001). In the first 13 months of life, lambs supplemented with lupin grain before weaning grew more (P<0.05) clean wool by 0.17 kg than the unsupplemented lambs. However, the value of this extra wool would not have covered the cost of the lupin grain eaten. Wool staples produced by sheep grazed at 10/ha on lupin stubble were stronger (P<0.001) than those produced by sheep grazed at 20ha (24.4 v. 17.7 N/ktex). The position of greatest weakness in the staple coincided with weight loss prior to removal from the stubble. Singleton lambs born in September and weaned onto a phomopsis-resistant lupin stubble reached liveweights consistent with survival over the summer and good productivity in their first year of life. The effects of lupinosis and reductions in wool staple strength may have been avoided by monitoring liveweight change and taking the sheep off the stubbles when they were near peak liveweight.

scholarly journals Higher Ultraviolet Radiation During Early Life Reduces Risk of Childhood Type 1 Diabetes in Boys

2020 ◽  
Vol 5 (5) ◽  
Author(s):  
Kate Miller
Keyword(s):  
Type 1 Diabetes ◽  
Ultraviolet Radiation ◽  
Western Australia ◽  
Early Life ◽  
Population Based ◽  
First Year ◽  
Third Trimester ◽  
Individual Level ◽  
First Year Of Life

IntroductionThere is increasing evidence that environmental exposures may be important in the pathogenesis of type 1 diabetes (T1D). Ultraviolet radiation (UVR) is of interest in relation to the development of T1D because of its immunoregulatory actions. Ecological studies testing the correlation between levels of UVR and T1D have shown a significant inverse relationship for both incidence and prevalence. Objectives and Approach We used large linked datasets to test ambient UVR during early life against T1D risk at the individual level. We conducted a nested case-control study using linked data from state-wide administrative datasets and NASA satellites. Cases (n=1819) were all children born in Western Australia from 1980-2014 with a diagnosis of T1D on the population-based Western Australian Children’s Diabetes Database between 0-16 years of age. Controls (n=27 259) were randomly selected from all live births in Western Australia and matched to cases on sex and date of birth. Daily UVR data from NASA satellites, that were date-and location-specific for each individual, were used to estimate total UVR dose for each trimester of pregnancy and the first year of life. ResultsConditional logistic regression showed that T1D risk was 44% lower in boys of mothers with UVR levels in the highest quartile (compared to the lowest quartile) during their third trimester of pregnancy (p=0.04). Higher UVR in the first year of life was also associated with a significantly lower risk of T1D in later childhood among boys. Among girls, there was no evidence of an association between total UVR dose and T1D risk. ConclusionHigher UVR in the third trimester and first year of life appears to interact with sex-specific factors to lower T1D risk among boys (but not girls) in Western Australia.

The Cost of Prematurity: Hospital Charges at Birth and Frequency of Rehospitalizations and Acute Care Visits over the First Year of Life

2005 ◽  
Vol 105 (7) ◽  
pp. 56-64 ◽  
Author(s):  
Katherine D. Cuevas ◽  
Debra R. Silver ◽  
Dorothy Brooten ◽  
JoAnne M. Youngblut ◽  
Charles M. Bobo
Keyword(s):  
Acute Care ◽  
Hospital Charges ◽  
First Year ◽  
First Year Of Life ◽  
The Cost

Effect of ram introduction upon the pulsatile release of LH and follicle development in pre-puberal ewe lambs

1988 ◽  
Vol 1988 ◽  
pp. 95-95
Author(s):  
N.Z. Al-Mauly ◽  
M.J. Bryant ◽  
F.J. Cunningham
Keyword(s):  
Late Summer ◽  
First Year ◽  
Follicle Development ◽  
Similar Action ◽  
Pulsatile Release ◽  
Ewe Lambs ◽  
Ewe Lamb ◽  
Transition Into Adulthood ◽  
First Year Of Life ◽  
Lh Secretion

The introduction of rams to seasonally-anovular ewes will, at certain times of the year, stimulate increased pulsatile release of LH, follicle development and ovulation (Martin et al., 1986). The neuroendocrine mechanism governing the transition into adulthood of ewe lambs is incompletely understood, but it is believed to be similar to that which controls the transition to the breeding season in the adult ewe (Foster, Yellon and Olster, 1985; Legan, Karsch and Foster, 1977). Thus the introduction of rams may have a similar action in the pre-puberal ewe lamb as in the seasonally-anovular adult ewe. This experiment investigated the effect of the introduction of rams on the pattern of LH secretion and follicle development in ewe lambs during the late summer/early autumn of their first year of life.

First-year survival of great horned owls during a peak and decline of the snowshoe hare cycle

1996 ◽  
Vol 74 (6) ◽  
pp. 1092-1097 ◽  
Author(s):  
Christoph Rohner ◽  
D. Bruce Hunter
Keyword(s):  
Survival Rates ◽  
Bird Species ◽  
Population Cycle ◽  
First Year ◽  
Mortality Factors ◽  
Bubo Virginianus ◽  
Slow Development ◽  
Snowshoe Hares ◽  
First Year Of Life ◽  
The Cost

Most bird species have low survival rates in their first year of life, and the highest losses occur when juveniles become independent and disperse. Young great horned owls (Bubo virginianus), monitored by telemetry in the southwestern Yukon, Canada, survived well during the peak of the population cycle of snowshoe hares (Lepus americanus). Subsequently, juvenile survival collapsed parallel to the decline in hare densities. The proportion of starving owls did not increase, but there was a significant increase in mortalities involving parasitism and predation, probably as an interaction with food shortage. The mortality rates of juvenile great horned owls peaked before, not during, dispersal. We propose that extended parental care makes the postfledging stage safe during optimal conditions, but that the relatively slow development during this stage incurs the cost of increased susceptibility to disease and other mortality factors under environmental stress.

Impact of Brook Trout (Salvelinus fontinalis) Predation on the Crayfish Orconectes virilis in Three Michigan Lakes

1979 ◽  
Vol 36 (10) ◽  
pp. 1191-1196 ◽  
Author(s):  
H. Gowing ◽  
W. T. Momot
Keyword(s):  
Brook Trout ◽  
Salvelinus Fontinalis ◽  
First Year ◽  
Orconectes Virilis ◽  
Trout Population ◽  
Production Growth ◽  
First Year Of Life ◽  
The Cost ◽  
Slow Growing ◽  
Northern Michigan

The crayfish Orconectes virilis is a major component of the benthos of three small lakes in northern Michigan. These lakes contained stocked brook trout (Salvelinus fontinalis) populations (age-0 and age-I) at densities of 188, 411, and 1398 fish/ha. Crayfish were preyed upon by brook trout, but only during their first year of life. Two-year production of age-0 crayfish was approximately 94 kg in each lake; brook trout consumed only about 1–2% in lakes with lower density offish. Even with greater trout density and accompanying higher rate of exploitation (40%), there was no impact on recruitment of young crayfish because compensatory mortality of crayfish occurred in lakes with less trout predation. However, stocking trout at higher densities decreased trout growth and condition. While 2-yr production was highest (59 kg/ha) in the lake stocked at the highest density and lowest (17 kg/ha) in one stocked at the lowest density, the former was achieved at the cost of a very slow growing trout population. Most of the crayfish production is not utilized as trout food but enters the non-predatory pool of detrital organic matter. Key words: Orconectes virilis, brook trout, predation, production growth, mortality

scholarly journals Tetracycline Resistance in Escherichia coli and Persistence in the Infantile Colonic Microbiota

2006 ◽  
Vol 50 (1) ◽  
pp. 156-161 ◽  
Author(s):  
Nahid Karami ◽  
Forough Nowrouzian ◽  
Ingegerd Adlerberth ◽  
Agnes E. Wold
Keyword(s):  
Escherichia Coli ◽  
Ecological Impact ◽  
Tetracycline Resistance ◽  
Resistant Variety ◽  
First Year ◽  
Tetracycline Resistance Genes ◽  
Resistant Strains ◽  
First Year Of Life ◽  
The Cost ◽  
Population Counts

ABSTRACT The ecological impact of antibiotic resistance in the absence of selective pressure has been poorly studied. We assessed the carriage of tetracycline resistance genes, persistence in the microbiota, fecal population counts and virulence factor genes in 309 commensal, intestinal Escherichia coli strains obtained from 128 Swedish infants followed during the first year of life with regular quantitative fecal cultures. No infant was given tetracycline, but 25% received other antibiotics. Tetracycline resistance was identified in 12% of strains, all of which carried either tet(A) (49%) or tet(B) (51%) genes. Resistance to other antibiotics occurred in 50% of tet(A)-positive strains, 42% of tet(B)-positive strains and 13% of tetracycline-sensitive strains. However, colonization with tetracycline-resistant strains was unrelated to treatment with antibiotics. Strains that were tet(B)- or tet(A)-positive carried the genes for P fimbriae and aerobactin, respectively, more often than susceptible strains. Tetracycline-resistant and -susceptible strains were equally likely to persist among the intestinal microbiota for ≥3 weeks and had similar population numbers. However, when a resistant strain and a susceptible strain colonized a child simultaneously, the resistant variety showed lower counts (P = 0.03). In cases of long-term colonization by initially tetracycline-resistant E. coli strains, loss of tet genes occurred in 3 of 13 cases with variable effects on population counts. The results indicate that there is limited pressure against the carriage of tet genes in the infantile gut microbiota even in the absence of antibiotics. Resistant strains may possess colonization factors that balance the cost of producing resistance elements.

scholarly journals Costi sanitari di un programma vaccinale: analisi di minimizzazione dei costi

2003 ◽  
Vol 4 (1) ◽  
pp. 25-32
Author(s):  
G. L. Colombo ◽  
A. Muzio ◽  
R. Giordani
Keyword(s):  
Cost Minimization ◽  
First Year ◽  
Liquid Formulation ◽  
Italian Market ◽  
Global Cost ◽  
Differential Costs ◽  
Mandatory Vaccination ◽  
First Year Of Life ◽  
The Cost ◽  
Cost Components

The global cost of a vaccination program is made up by many more cost components than the acquisition expense, although the former is the first cost usually taken into consideration when comparing two or more alternatives. The present article analyses the economical impact consequent to the use of two different hexavalent vaccine formulations (Hexavac, liquid ready for injection, and Infanrix Hexa, dry, to be re-hydrated) available on the Italian market for the mandatory vaccination of newborns during their first year of life. The cost minimization analysis was conducted considering only differential costs, i.e. those costs than can differ with the use of one of the two products, and not those common to the two competing products, such as acquisition cost (33 euro in average for both), the costs for the organization, the call of the infants to be vaccinated, etc.. The differences among the considered alternatives detected by this study regard the work for the preparation and administration of the vaccines, the quantity of special waste they produce and the incidence of serious febrile reactions leading to pharmacological treatment and physician consultation (body temperature > 40°C). The liquid formulation resulted more convenient in terms of cost for nurse work (0,63 euro saved per patient), waste disposal, and adverse reactions management. The robustness of these results was confirmed by sensitivity analysis and an estimate of the global saving for the Italian health system associated with the universal utilization of the liquid formulation is furnished.

Overview: The Effects of Chemical Pollutants on the Fetus and Child

PEDIATRICS ◽  
1974 ◽  
Vol 53 (5) ◽  
pp. 860-862
Author(s):  
Frederick C. Robbins
Keyword(s):  
Young Child ◽  
Later Life ◽  
Point Of View ◽  
First Year ◽  
Fetal Life ◽  
Environmental Chemical ◽  
Chronic Disability ◽  
Chemical Pollutants ◽  
First Year Of Life ◽  
The Cost

What I have to say in my summary will be very personal. It concerns information that has filtered through those remaining neurones, and perhaps reflects certain prejudices which result from a good many years of association with a rather comparable field, the prevention of infectious diseases and the development and introduction of vaccines. This work has many problems similar to those pertaining to chemical pollutants. Throughout this Conference we have emphasized repeatedly the peculiar susceptibility of the fetus and young child to environmental chemical pollutants. It has been pointed out that, in addition to the periods of special vulnerability (particularly evident in early fetal life), the infant and child are more subject to certain environmental risks at different stages of development (e.g., the high incidence of poisonings in toddlers). Our special concern for the fetus and the young child is not based on these considerations alone. Clearly, any adverse happening to an individual early in life, particularly if it affects intellectual achievement, provides a great burden on the social system; and, the longer the period this person must be supported by society, the greater the burden and the greater the cost-not just in money but in many other ways. Death from the socioeconomic point of view is relatively unimportant, compared to a chronic disability. Behavioral psychologists have taught us about imprinting, which is particularly evident in some animals but has not been demonstrated in children. Dr. Holland's comments about the effect of air pollution in the first year of life, and its sequelae in later life are of great importance, and certainly need to be subjected to further study.

Gastric Duplication Cyst: A Rare Case Report

2021 ◽  
Author(s):  
Veli Avcı ◽  
Ramazan Çelik ◽  
Mesur Özgökçe
Keyword(s):  
Weight Loss ◽  
Rare Case ◽  
Duplication Cyst ◽  
First Year ◽  
Common Symptom ◽  
Gastric Duplication ◽  
Palpable Mass ◽  
Gastric Duplication Cyst ◽  
Rare Case Report ◽  
First Year Of Life

Duplication cysts are developmental anomalies of gastrointestinal tract that can occur at any level from the oral cavity to the rectum, and are extremely rare in the stomach. Most patients show symptom and findings in the first year of life. The most common symptom and findings are abdominal pain, nausea, vomiting, anemia, weight loss and palpable mass. In this study, a gastric duplication cyst was presented in an 11-month-old patient.

Age, growth and condition of the Perth herring, Nematolosa vlaminghi (Munro) (Dorosomatinae), in the Swan Estuary, south-western Australia

1986 ◽  
Vol 37 (1) ◽  
pp. 105 ◽  
Author(s):  
CF Chubb ◽  
IC Potter
Keyword(s):  
Western Australia ◽  
Condition Factor ◽  
First Year ◽  
Growth Equation ◽  
Age Classes ◽  
Beach Seine ◽  
Gill Net ◽  
The Mean ◽  
Von Bertalanffy Growth Equation ◽  
First Year Of Life

The size, age and condition of Perth herring, N. vlaminghi, in the Swan Estuary in south-western Australia, were investigated between February 1977 and January 1980 using samples collected by beach seine and gill net. An examination of scale annuli showed that the population consisted predominantly of age classes 0+ to 4 +. By the end of their first year of life, Perth herring had reached mean lengths of 105 mm (= 9.8 g) in 1977, 105 mm (= 10.0 g) in 1978, and 95 mm (= 7.9 g) in 1979. The von Bertalanffy growth equation was calculated to be Lt = 381{1 -exp[- O.17(t + 0.6S)]}. During winter, the growth rate declined markedly and the mean condition factor fell to its lowest level. Perth herring started to make a major contribution to the important commercial fishery for this species during their third year of life.

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