Abstract:
:The objectives of this experiment were to determine the effects of graded dietary lead (Pb) concentrations on body weight and Pb concentrations in blood, hair, soft tissues, and urine from pigs and to generate equations for estimating daily Pb intake. Sixteen barrows with initial body weight 36.3 kg (standard deviation = 2.3) were allotted to four dietary treatments that consisted of graded supplemental Pb concentrations (0, 10, 25, and 250 mg/kg of diet). Daily feed allowances for each pig were 1 kg for first two weeks and 2 kg for last two weeks. The hair and blood of pigs were collected on d 14 and 28. At the end of experiment, the pigs were euthanized, and the liver, kidneys, muscle, and urine samples were collected. The prediction equations for estimating daily Pb intake of pigs were generated using Pb concentration of blood, hair, tissues, or urine as an independent variable. The Pb concentrations in the blood, hair, liver, kidneys, muscle, and urine linearly increased (P < 0.01) with increasing dietary Pb concentrations. There were quadratic effects (P < 0.05) of increasing dietary Pb concentration on Pb concentrations in the blood, hair, and muscle. There were highly positive correlations between dietary Pb concentration and Pb concentrations in the blood, hair, liver, kidneys, muscle, and urine (r > 0.83; P < 0.01). The equations were significant (P < 0.01) and showed high r2 (>0.83), except the equation using Pb concentration in the muscle as an independent variable. In conclusion, the dietary Pb concentration was highly correlated with Pb concentrations in the blood, hair, soft tissues, and urine of pigs. The total dietary Pb intake can be estimated from the Pb concentrations in the blood, hair, soft tissues, or urine for pigs.
journal_name
PeerJjournal_title
PeerJauthors
Reddy KE,Park KR,Lee SD,Yoo JH,Son AR,Lee HJdoi
10.7717/peerj.3936subject
Has Abstractpub_date
2017-11-01 00:00:00pages
e3936issn
2167-8359pii
3936journal_volume
5pub_type
杂志文章相关文献
PeerJ文献大全abstract:BACKGROUND:Seed-applied neonicotinoids are widely used in agriculture, yet their effects on non-target species remain incompletely understood. One important group of non-target species is arthropod natural enemies (predators and parasitoids), which contribute considerably to suppression of crop pests. We hypothesized t...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2776
更新日期:2016-12-07 00:00:00
abstract::Heterotrophic plants-plants that have lost the ability to photosynthesize-are characterized by a number of changes at all levels of organization. Heterotrophic plants are divided into two large categories-parasitic and mycoheterotrophic (MHT). The question of to what extent such changes are similar in these two catego...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9309
更新日期:2020-06-19 00:00:00
abstract::Due to varietal differences, diminutive size, and similar morphological characters, it is difficult to classify and identify Liriomyza spp., a genus comprised of economically-important, highly-polyphagous insect pests. In this study, we reconfirmed the morphological characteristics of three closely-related invasive le...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.10138
更新日期:2020-10-30 00:00:00
abstract:Purpose:To explore whether unilateral relapse of Bechet's disease-associated uveitis (BDU) causes differences in the tear proteome between the diseased and the contralateral quiescent eye and potential tear biomarkers for uveitis recurrence and disease monitoring. Method:To minimize interindividual variations, bilater...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9250
更新日期:2020-06-19 00:00:00
abstract:Background:Cyclin A overexpression is found in a variety of human tumors and correlates with unfavorable outcome. We analyzed immunohistochemical expression of cyclin A in Wilms tumor (WT) in relation to clinicopathological characteristics, preoperative chemotherapy (PrOpChTh), and overall survival (OS). Methods:This ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6212
更新日期:2019-01-11 00:00:00
abstract::Introduction. Adolescent interpersonal violence is a global public health problem, yet gaps remain in the epidemiologic literature on adolescent violence in low- and middle-income countries (LMIC). Prevalence rates and risk and protective factors reported in high-income countries may be different from those reported i...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.125
更新日期:2013-08-13 00:00:00
abstract::Background. Nasal continuous positive airway pressure (nCPAP) is a widely accepted technique of non-invasive respiratory support in premature infants with respiratory distress syndrome due to lack of lung surfactant. If this approach fails, the next step is often intubation, mechanical ventilation (MV) and intratrache...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.403
更新日期:2014-05-27 00:00:00
abstract:Background:Sexual development in Flammulina velutipes is controlled by two different mating type loci (HD and PR). The HD locus contains homeodomain (Hd) genes on two separate HD subloci: HD-a and HD-b. While the functionality of the HD-b sublocus has been largely confirmed, the status and content of the HD-a sublocus ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6292
更新日期:2019-02-22 00:00:00
abstract::Tethering a fly for stationary flight allows for exquisite control of its sensory input, such as visual or olfactory stimuli or a punishing infrared laser beam. A torque meter measures the turning attempts of the tethered fly around its vertical body axis. By punishing, say, left turning attempts (in a homogeneous env...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1971
更新日期:2016-04-25 00:00:00
abstract::The Asian clam, Corbicula fluminea, is a commonly consumed small freshwater bivalve in East Asia. However, available genetic information of this clam is still limited. In this study, the transcriptome of female C. fluminea was sequenced using the Illumina HiSeq 2500 platform. A total of 89,563 unigenes were assembled ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7770
更新日期:2019-10-22 00:00:00
abstract::We have developed a novel bio-tofu, made from mixed soy and cow milk (MSCM), using Lactobacillus helveticus MB2-1 and Lactobacillus plantarum B1-6 incorporated with microbial transglutaminase (MTGase) as coagulant. MTGase was added to improve the textural properties and suit for cooking. However, the effect of MTGase ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2754
更新日期:2016-12-15 00:00:00
abstract:Background:The functional significance of ADAMs family members in the immune infiltration of pancreatic adenocarcinoma (PAAD) awaits elucidation. Methods:ADAMs family members with significant expression were identified among differentially expressed genes of PAAD based on The Cancer Genome Atlas (TCGA) database follow...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9736
更新日期:2020-09-30 00:00:00
abstract::The phylum Actinobacteria constitutes one of the largest and anciently divergent phyla within the Bacteria domain. Actinobacterial diversity has been thoroughly researched in various environments due to its unique biotechnological potential. Such studies have focused mostly on soil communities, but more recently marin...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3247
更新日期:2017-05-02 00:00:00
abstract:BACKGROUND:The rice receptor kinase XA21 confers robust resistance to the bacterial pathogen Xanthomonas oryzaepv. oryzae(Xoo). We previously reported that XA21 is cleaved in transgenic plants overexpressing XA21 with a GFP tag (Ubi-XA21-GFP) and that the released C-terminal domain is localized to the nucleus. XA21 car...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2507
更新日期:2016-10-05 00:00:00
abstract:Background:Parkinson's disease (PD) is the second most common neurodegenerative disorder. In addition to its highly debilitating motor symptoms, non-motor symptoms may precede their motor counterparts by many years, which may characterize a prodromal phase of PD. A potential pharmacological strategy is to introduce neu...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4957
更新日期:2018-06-01 00:00:00
abstract::The ability to accurately identify and label emotions in the self and others is crucial for successful social interactions and good mental health. In the current study we tested the longitudinal relationship between early language skills and recognition of facial and vocal emotion cues in a representative UK populatio...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9118
更新日期:2020-05-12 00:00:00
abstract::The potential of soils to naturally suppress inherent plant pathogens is an important ecosystem function. Usually, pathogen infection assays are used for estimating the suppressive potential of soils. In natural soils, however, co-occurring pathogens might simultaneously infect plants complicating the estimation of a ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2615
更新日期:2016-11-03 00:00:00
abstract::[This corrects the article DOI: 10.7717/peerj.3954.]. ...
journal_title:PeerJ
pub_type: 杂志文章,已发布勘误
doi:10.7717/peerj.3954/correction-1
更新日期:2017-11-14 00:00:00
abstract:Background:Quantifying lower-limb load and asymmetry during team sport match-play may be important for injury prevention and understanding performance. However, current analysis methods of lower-limb symmetry during match-play employ wearable microtechnology that may not be best suited to the task. A popular microtechn...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9366
更新日期:2020-06-23 00:00:00
abstract::As a vector of Xylella fastidiosa (Wells, 1987) in Europe, the meadow spittlebug Philaenus spumarius (Linnaeus, 1758) (Hemiptera, Aphrophoridae) is a species of major concern. Therefore, tools and agents to control this ubiquitous insect that develops and feeds on hundreds of plant species are wanted. We conducted a f...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8591
更新日期:2020-03-24 00:00:00
abstract:Purpose:A literature review is presented that aims to summarize and compare current methods to evaluate sleep. Methods:Current sleep assessment methods have been classified according to different criteria; e.g., objective (polysomnography, actigraphy…) vs. subjective (sleep questionnaires, diaries…), contact vs. conta...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4849
更新日期:2018-05-25 00:00:00
abstract::In recent years, a massive mortality event has killed millions of sea stars, of many different species, along the Pacific coast of North America. This disease event, known as 'sea star wasting disease' (SSWD), is linked to viral infection. In one affected sea star (Pisaster ochraceus), previous work had identified tha...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1876
更新日期:2016-03-29 00:00:00
abstract::Background. Recurrent pain is a common experience in childhood, but only few children with recurrent pain attend a physician. Previous studies yielded conflicting findings with regard to predictors of health care utilization in children with recurrent pain. Methods. The present study analyzes data from the German Heal...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.916
更新日期:2015-04-28 00:00:00
abstract::Metoposaurids are representatives of the extinct amphibian clade Temnospondyli, found on almost every continent exclusively in the Late Triassic deposits. Osteohistologically, it is one of the best-known temnospondyl groups, analyzed with a wide spectrum of methods, such as morphology, morphometry, bone histology or c...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9868
更新日期:2020-09-08 00:00:00
abstract:Background:The current cultivation and plant breeding of Honeybush tea (produced from members of Cyclopia Vent.) do not consider the genetic diversity nor structuring of wild populations. Thus, wild populations may be at risk of genetic contamination if cultivated plants are grown in the same landscape. Here, we invest...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9818
更新日期:2020-09-02 00:00:00
abstract::Transgenerational effects are important for phenotypic plasticity and adaptation of marine invertebrates in the changing ocean. Ultraviolet-B (UV-B) radiation is an increasing threat to marine invertebrates. For the first time, we reported positive and negative transgenerational effects of UV-B radiation on egg size, ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7598
更新日期:2019-08-26 00:00:00
abstract::Garden Warblers Sylvia borin were studied during autumn stopover in Crete before crossing the barrier of the Mediterranean Sea and the Sahara Desert. Birds followed with transmitters show extensive stopover periods, which were longer in first-year birds, 16 days, compared with adult birds, 14 days. The distribution of...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.319
更新日期:2014-03-25 00:00:00
abstract::Histone deacetylases (HDACs) are key epigenetic factors in regulating chromatin structure and gene expression in multiple aspects of plant growth, development, and response to abiotic or biotic stresses. Many studies on systematic analysis and molecular function of HDACs in Arabidopsis and rice have been conducted. Ho...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8539
更新日期:2020-02-12 00:00:00
abstract::According to the intelligence-creativity threshold hypothesis, there should be a positive association between intelligence and creative potential up to a certain point, the threshold, after which a further increase in intelligence should have no association with creativity. In the present simulation study, the measure...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7891
更新日期:2019-10-21 00:00:00
abstract::Sex determination and sex chromosomes can be very diverse between teleost species. The group of tilapias shows a polymorphism in sex determination not only between closely related species but also between domestic strains within a species. In the Nile tilapia, the major effect genes and therefore the Y chromosome have...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7709
更新日期:2019-09-18 00:00:00