Search Results
Results 1 - 50 of 1675
1 2 3 4 5 6 7 8 9 10 >
Ali Tariq T College of Veterinary Medicine, China Agricultural University, Yuan Ming Yuan West Road No. 2, Haidian District, 100193, Beijing, People's Republic of - - 2014
Buffalo is an economically important dairy animal in South Asia but mostly ignored in research priorities. In this retrospective study, the effect of management practices and age of animal on the incidence of mastitis in Nili Ravi buffaloes was investigated. A total of 1,560 quarters of buffaloes (n = 390) were screened ...
Archie Elizabeth A EA Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556 USA ; Institute of Primate Research, National Museums of Kenya, Nairobi, - - 2014
Reproduction is a notoriously costly phase of life, exposing individuals to injury, infectious disease, and energetic tradeoffs. The strength of these costs should be influenced by life history strategies, and in long-lived species, females may be selected to mitigate costs of reproduction because life span is such an important component ...
Aaldriks Ab A - - 2014
Abstract The age-adjusted International Prognostic Index (IPI) is an important prognostic factor for patients with non-Hodgkin lymphoma (NHL). We investigated whether a geriatric assessment (GA) is of additional prognostic value in NHL. In this prospective cohort study of 44 patients aged 70 years or older with NHL receiving R-CHOP, a ...
Thometz N M NM Department of Ecology and Evolutionary Biology, Long Marine Laboratory, University of California at Santa Cruz, 100 Shaffer Road, Santa Cruz, CA 95060, USA - - 2014
Sea otters (Enhydra lutris) have the highest mass-specific metabolic rate of any marine mammal, which is superimposed on the inherently high costs of reproduction and lactation in adult females. These combined energetic demands have been implicated in the poor body condition and increased mortality of female sea otters nearing the ...
Richard Gaëtan G CEBC-CNRS, - - 2014
Mature female southern elephant seals come ashore only in October to breed and in January to moult, spending the rest of the year foraging at sea. Mature females may lose as much as 50% of their body mass, mostly in lipid stores, during the breeding season due to fasting and ...
Riley D G DG Department of Animal Science, Texas A&M University, College Station - - 2014
The objectives of this work were to compare reproduction and parturition traits of the Criollo breed Romosinuano as straightbred and crossbred cows with Angus and Brahman, to estimate heterosis and direct and maternal genetic breed effects, and to describe calf loss, cow removals from the project, the occurrence of calving ...
Binnington Matthew J MJ Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario, - - 2014
Relationships between persistent organic pollutant (POP) levels and age in wildlife biomonitoring are often interpreted as changes in contaminant burden as organisms age. However cross-sectional body burden-age trends (CBATs) obtained from biomonitoring studies, which sample individuals of different age at the same time, should not be confused with longitudinal body ...
Matos Carla C Faculdade de Ciências da Saúde, Universidade Fernando Pessoa , Porto , Portugal - - 2014
Abstract The aims of this paper were to evaluate changes in specific oligoelements in human milk during the first four months of lactation and to correlate such changes with total antioxidant status (TAS) and other parameters, such as the mother's age, primipara versus multipara, and supplement intake. Milk samples were ...
Krpálková L L Department of Cattle Breeding, Institute of Animal Science, Přátelství 815, 10400 Prague 10 - Uhříněves, Czech Republic; Department of Animal Husbandry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 21, Prague 6 - Suchdol, Czech - - 2014
The objective of this study was to evaluate the effect of body condition score (BCS), body weight (BW), average daily weight gain (ADG), and age at first calving (AFC) of Holstein heifers on production and reproduction parameters in the 3 subsequent lactations. The data set consisted of 780 Holstein heifers ...
Fradinho M J MJ CIISA, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. Universidade Técnica, Lisboa, - - 2014
The aim of this study was to investigate the effects of body condition (BC), BC changes, and plasma leptin concentrations on the reproductive performance of Lusitano broodmares on extensive systems. Data from 119 mares (ranging from 4 to 22 years of age) were collected over a period of four consecutive breeding ...
Leontieva Olga V OV Cell Stress Biology; Roswell Park Cancer Institute; Buffalo, NY - - 2014
A groundbreaking publication by Sinclair and coworkers has illuminated the pseudo-hypoxic state in aging and its reversibility. Remarkably, these data also fit the mTOR-centered model of aging. Here we discuss that the mTOR pathway can cause cellular pseudo-hypoxic state, manifested by HIF-1 expression and lactate production under normoxia. We found ...
Lucena J A JA Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, 18830 Road 112, Tulare - - 2014
The objective of this clinical trial was to compare conception and newborn calf sex ratios among Jersey heifers and lactating cows inseminated with either standard sex-sorted semen (low-dose, high-sort; LDHS) containing 2.1 × 10(6) sorted sperm at 90% purity or high-dose, low-sort (HDLS) semen containing 10 × 10(6) sorted sperm ...
McDougall S S a Cognosco, Animal Health Centre , Morrinsville , New - - 2014
To determine the prevalence of intramammary infection (IMI) of lactating dairy goats between 0 and 4 days postpartum, the prevalence and incidence rate of new IMI at Weeks 2, 14 and 27 of lactation, and the relationship between herd-level prevalence of IMI and bulk tank somatic cell count (BTSCC). Milk ...
Markham A Catherine AC Center for the Advanced Study of Hominid Paleobiology, The George Washington University, Washington, D.C., - - 2014
Given the deleterious consequences associated with chronic stress, individual differences in stress susceptibility can have important fitness implications. These differences may be explained in part by dominance status because high rank is typically associated with decreased aggression and improved nutrition. Here, we examined the relationship between dominance and social stress ...
Cho Bum-Joo BJ Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea; Department of Ophthalmology, Seoul National University Hospital, Seoul, - - 2014
To examine the association between female reproductive factors and age-related macular degeneration (AMD) in postmenopausal women. Nationwide population-based cross-sectional study. A nationally representative dataset acquired from the 2010-2012 Korea National Health and Nutrition Examination Survey was analyzed. The dataset involved information for 4,377 postmenopausal women aged ≥50 years with a ...
Sasaki Kengo - - 2013
Under conditions conductive to growth, Corynebacterium glutamicum showed higher lactate yield from glucose (1.62 ± 0.04) in a bioelectrochemical reactor including 0.2 mM of anthraquinone 2,6-disulfonate with the electrode potential regulated at -0.6 V (vs. Ag/AgCl) than in a non-regulated environment (1.10 ± 0.03), clarifying that low cathodic potential is beneficial for lactate production.
Perri Adrián F - - 2013
Parasitism during development impairs normal growth and delays the onset of puberty through altered hormone profiles, including insulin-like growth factor one (IGF-1). As mammary gland development during prepuberty is strongly dependent on IGF-1, we determined if antiparasitic treatment during this stage of growth improved mammary gland development. One group of ...
Nagasawa Miho - - 2013
Endocrinological stress response has been shown to be absent in a specific period of the early life of rodents; this is named the stress-hyporesponsive period (SHRP). The SHRP is a significant period for the appropriate development of infants. In this study, the presence of SHRP in dogs was identified by ...
Langer Sandra - - 2013
Hematologic and serum biochemical values were determined for 26 (16 males and 10 females) clinically healthy captive fossas (Cryptoprocta ferox) living at Zoo Duisburg, Germany. The animals were net-restrained and anesthetized with ketamine and medetomidine for a general examination. A total of 11 animals were classified as subadult (1-3 yr ...
Belfort Mandy B - - 2013
Breastfeeding may benefit child cognitive development, but few studies have quantified breastfeeding duration or exclusivity, nor has any study to date examined the role of maternal diet during lactation on child cognition. To examine relationships of breastfeeding duration and exclusivity with child cognition at ages 3 and 7 years and ...
Hutchinson I A - - 2013
A model was developed to examine the effects of sexed semen use in virgin heifers and lactating cows on replacement heifer numbers and rate of herd expansion in a seasonal dairy production system. Five separate herds were established according to the type of semen used: conventional frozen-thawed (Conv), sexed fresh ...
Compton Cwr - - 2013
The main aim of this study was to describe the prevalence of primary subclinical ketosis (SCK) in mainly pasture-grazed dairy cows in three dairy-farming regions of New Zealand 7-12, and 35-40 days post-calving. A second aim was to investigate herd- and cow-level factors associated with the prevalence of SCK. A ...
Fletcher Quinn E - - 2013
Successful reproduction in a seasonal environment can be accomplished with resources that are stored before use ("capital resources") or resources that are used immediately ("income resources"). Research examining capital versus income resource usage during reproduction has primarily focused on assigning species to positions along a capital-income gradient. Here, we examine ...
Geornaras Ifigenia - - 2013
This study evaluated the potential effect of age of cook-in-bag ham and turkey breast delicatessen meats formulated with lactate-diacetate on survival and/or growth of Listeria monocytogenes introduced after opening of packages and slicing of product. Commercially prepared cured ham and turkey breast products formulated with potassium lactate and sodium diacetate ...
Erke Maja G - - 2013
OBJECTIVE: Some risk factors for age-related macular degeneration (AMD) have been shown to act differently in women and men. The present study aims to investigate this disparity by examining associations between female hormones, reproductive history and AMD. METHODS: Women aged 65-87 years were invited to this cross-sectional, population-based study in ...
Akhtar Saeed - - 2013
This article attempts to highlight the prevalence of zinc deficiency and its health and economic consequences in South Asian developing countries and to shed light on possible approaches to combating zinc deficiency. A computer-based search was performed on PubMed, Google, and ScienceDirect.com to retrieve relevant scientific literature published between 2000 ...
Sharma Neelesh - - 2013
The present investigation was carried out to study the prevalence of mastitis in 136 Holstein cows from a subtropical province of South Korea. Out of 527 milk samples studied, 22.6 % were found positive for mastitis. On animal level, prevalence was estimated at 55.2 %. Late lactating cows were at higher risk ...
Karnincić Hrvoje - - 2013
The aim of this study was to describe and explain wrestling fight lactate and glucose curves and establish the differences between wrestlers of different quality level. The study was conducted on a sample 60 young wrestlers, cadets (N=30, aged 15.5+/-0.5) and juniors (N=30, aged 18.6+/-1.2). Every subsample was divided in ...
Liu Chunli - - 2013
To contribute to a better understanding of the factors affecting meat quality, we investigated the influence of age on the chemical composition of duck meat. Aging probably affects the quality of meat through changes in metabolism. Therefore, we studied the metabolic composition of duck meat using (1)H nuclear magnetic resonance ...
Narayan Edward J - - 2013
Koalas (Phascolarctos cinereus)arethe only extant representatives of Australia's unique marsupial familyPhascolarctidae and were listed as nationally Vulnerable in 2012. Causes ofmortalityare diverse, althoughthe diseasechlamydiosis, dog attacks, collisions with cars, and loss of habitat representtheprincipal reasons for the continued species decline. Koala breeding facilities in Queensland and New South Wales, Australia ...
Ebensperger Luis A - - 2013
The cort-adaptation hypothesis indicates that an association between glucocorticoid (cort) levels and fitness may vary with the extent to which reproduction or breeding effort is a major determinant of cort levels. Support for a context dependent association between cort and fitness comes mostly from relatively long-lived, bird species. We tested ...
Zafar Aasma Nudrat - - 2013
Objective: To determine the frequency of breast arterial calcifications (BAC) as seen on mammographic examination and to determine the association between BAC and hypertension, age, parity and weight of the person. Study Design: Cross-sectional analytic study. Place and Duration of Study: Department of Diagnostic Radiology, Military Hospital, Rawalpindi, from January ...
Branco Braulio H M - - 2013
This study aims to investigate the association between the rating of perceived exertion (RPE), heart rate (HR) and the blood lactate concentration ([La]) in successive judo fight simulations (randori). TEN ATHLETES PARTICIPATED IN THE STUDY (AGE: 25.6±2.1 years; stature: 1.75±0.07 m; body mass: 75.6±14.9kg; %BF: 11.5±7.8%; practice: 14.5±6.2 years) and ...
Lee Phyllis C PC School of Natural Sciences, University of Stirling, Stirling, UK. - - 2013
Growth from conception to reproductive onset in African elephants (Loxodonta africana) provides insights into phenotypic plasticity, individual adaptive plastic responses and facultative maternal investment. Using growth for 867 and life histories for 2652 elephants over 40 years, we demonstrate that maternal inexperience plus drought in early life result in reduced ...
Maritz Gert S - - 2013
BACKGROUND: Maternal nicotine exposure during gestation and lactation adversely affects lung development in the offspring. It has been suggested that the "program" that control long-term maintenance of the structural integrity of the lung may be compromised. The aim of the study was to establish whether the effect of grand-maternal nicotine ...
Oyesiku Linda - - 2013
Early linear growth in Guatemala has historically been compromised, resulting in adults of short stature. We hypothesized that the rate of short stature among mothers in the Western Highlands would have tracked from their own childhood when younger than 5 years, and that maternal weight declines progressively from delivery through ...
Ma Daoyou D Department of Rehabilitation, the Lu'an Affiliated Hospital of Anhui Medical University, Lu'an People's Hospital, Lu'an, Anhui Province, People's Republic of - - 2013
Compelling evidence has shown that the incidence of lumbar disc herniation (LDH) increases with age. In this study, retrospective clinical analysis of 601 cases of LDH has been conducted to investigate the role of age in the incidence of LDH in the elderly. The aim of the study is to ...
Costa Mário J - - 2013
The aim of this study was to assess the pooled and individual response of male swimmers over two consecutive years of training and identify the energetic and biomechanical factors that most contributed for the final performance. Nine competitive swimmers (20.0 ± 3.54 years old; 10.1 ± 3.41 years of training ...
Blasco-Lafarga C - - 2012
ABSTRACT: Little is known about the influence of speed-endurance workouts on the improvement of pacing strategies in the 800-m running event. This study aims to analyze it, comparing continuous repetitions vs. interval training workouts. Since we hypothesize that pacing is susceptible to expertise, there might be age-differences. 19 male 800-m ...
Al-Ghazaly Jameel - - 2012
We studied 136 males and 105 females with sickle cell anemia to determine the characteristics of the disease in Yemen. Their mean age [± SD (standard deviation)] was 12.8 ± 9.5 years (range: 9 months-40 years). Taiz, Hudaydah and Hajjah governorates, in the South-Central and the Northwestern provinces, showed the ...
Malhado Carlos Henrique Mendes - - 2013
The objective of this study was to evaluate the influence of inbreeding depression on traits of buffaloes from Brazil. Specifically, the traits studied were body weight at 205 and 365 days of age, average daily gain from birth to 205 days (ADG_205), average daily gain between 205 and 365 days ...
Murphy Lorna - - 2012
OBJECTIVES: To assess how different variables experienced across the life course, but particularly during early life, might affect age at menopause among 174 Bangladeshi migrants to London by comparing them to 157 nonmigrant sedentees and 154 women of European descent in London. METHODS: Participants were aged 35-59 years, with no ...
Kraus C - - 2012
In many mammals, early survival differs between the sexes, with males proving the more fragile sex ["Fragile male (FM) hypothesis"], especially in sexually dimorphic species where males are the larger sex. Male-biased allocation (MBA) by females may offset this difference. Here, we evaluate support for the FM and MBA hypotheses ...
Fedorenko O Yu - - 2012
Comparative analysis of cytosolic fraction distribution and conformational stability in lactate dehydrogenase (LDH) isozymes in healthy men of different age revealed significant differences indicating age-related characteristics of the enzyme. Activity of cytosolic fraction of LDH-1 and conformational stability of LDH-2 and LDH-3 in 40-year-old men were higher than in 20-year-olds. ...
Katz Mindy J MJ Saul B. Korey Department of Neurology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA. - - 2012
As the population ages, the need to characterize rates of cognitive impairment and dementia within demographic groups defined by age, sex, and race becomes increasingly important. There are limited data available on the prevalence and incidence of amnestic mild cognitive impairment (aMCI) and nonamnestic mild cognitive impairment (naMCI) from population-based ...
Cozier Yvette C - - 2012
The authors assessed the relation of hormonal and pregnancy-related factors to the incidence of sarcoidosis in the Black Women's Health Study. On biennial questionnaires, participants (US black women aged 21-69 years at baseline) reported data on diagnoses of sarcoidosis, reproductive history, and medication use. Cox regression models, adjusted for age, ...
Hohenbrink S - - 2012
In several studies of different species, the proportions of male and female offspring did not match the statistical assumption of 50:50. Aside from environmental and genetic factors, biological parameters were found to influence the sex ratio. Three hypotheses (Trivers-Willard, advantaged daughter, and the local resource competition hypothesis) have been proposed, ...
Lee Hwa - - 2012
It is well known that gradual loss of elastic fibers and skin relaxation cause the aging process, but whether changes in the orbicularis oculi muscle may contribute to the aging of the upper eyelid is not known. The aim of the present study was to use histopathologic examination to investigate ...
Peavy Guerry M - - 2012
Increased susceptibility of the aging brain to both chronic stress and incipient dementia-related neuropathology may accelerate cognitive decline. We investigated associations between chronic stress and diagnostic change in 62 individuals (mean age, 78.7 y) participating in an Alzheimer disease research center longitudinal study. The subjects, diagnosed at baseline as cognitively ...
Marlatt Michael W - - 2012
Age-related memory loss is considered to commence at middle-age and coincides with reduced adult hippocampal neurogenesis and neurotrophin levels. Consistent physical activity at midlife may preserve brain-derived neurotrophic factor (BDNF) levels, new cell genesis, and learning. In the present study, 9-month-old female C57Bl/6J mice were housed with or without a ...
1 2 3 4 5 6 7 8 9 10 >