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1. Age dependent physiological tolerances explain population dynamics and distribution in the intertidal zone: A study with porcelain crabs

Author:
Lagos, Marcelo E.; Castillo, Nicole; Albarrán-Mélzer, Natalia; Pinochet, Javier; Gebauer, Paulina; Urbina, Mauricio A.
Source:
Marine environmental research 2021 v.169 pp. 105343
ISSN:
0141-1136
Subject:
animal age,   etc   ; air; ceramics; habitats; littoral zone; osmoregulation; population dynamics; research; salinity; seawater; water uptake; weather;     Show all 12 Subjects
Abstract:
... Population dynamics and their response to environmental stressors have been widely studied in intertidal organisms. However, how these dynamics and responses change with animal age have been largely ignored to date. Traditionally, it is assumed that younger organisms are more sensitive than adults to environmental stressors; under this perspective it could be predicted that fully grown organisms s ...
DOI:
10.1016/j.marenvres.2021.105343

2. Goat γδ T cell subpopulations defined by WC1 expression, responses to pathogens and cytokine production

Author:
Yirsaw, Alehegne W.; Gillespie, Alexandria; Britton, Emily; Doerle, Alyssa; Johnson, Lisa; Marston, Susan; Telfer, Janice; Baldwin, Cynthia L.
Source:
Developmental and comparative immunology 2021 v.118 pp. 103984
ISSN:
0145-305X
Subject:
animal age,   etc   ; Leptospira; Mycobacterium avium; cattle; goats; hybrids; interleukin-17; monoclonal antibodies; paratuberculosis; sheep;     Show all 10 Subjects
Abstract:
... The major functions of γδ T cells in mammals overlap with those of αβ T cells but differ in that γδ T cells are rapid responders and see different types of antigens. While γδ T cells have been shown to be a major population of circulating lymphocytes in artiodactyl species such as cattle, sheep, and pigs, less is known about these cells in goats, an important agricultural species. We have recently ...
DOI:
10.1016/j.dci.2020.103984

3. Prevalence of Worldwide Neonatal Calf Diarrhoea Caused by Bovine Rotavirus in Combination with Bovine Coronavirus, Escherichia coli K99 and Cryptosporidium spp.: A Meta-Analysis

Author:
Brunauer, Michael; Roch, Franz-Ferdinand; Conrady, Beate
Source:
Animals 2021 v.11 no.4
ISSN:
2076-2615
Subject:
animal age,   etc   ; ; Bovine coronavirus; Cryptosporidium; Rotavirus; calves; diarrhea; enteropathogens; meta-analysis; odds ratio;     Show all 10 Subjects
Abstract:
... Multiple enteropathogens such as bovine rotavirus (BRV), bovine coronavirus (BCoV), Escherichia coli K99 (ETEC) and Cryptosporidium spp. (Crypto) are the most common causes of calf diarrhoea during the first 30 days of animal age. Three weighted-stratified random-effects meta-analyses were performed to calculate the worldwide prevalence of mixed infections of the causative agents (i.e., BRV-BCoV, ...
DOI:
10.3390/ani11041014

4. Relation between Feed Particle Size Distribution and Plumage Condition in Laying Hens on Commercial Farms

Author:
Schreiter, Ruben; Damme, Klaus; Freick, Markus
Source:
Animals 2021 v.11 no.3
ISSN:
2076-2615
Subject:
animal age,   etc   ; cross-sectional studies; herds; lysine; methionine; particle size distribution; plumage; regression analysis; sodium;     Show all 9 Subjects
Abstract:
... In this cross-sectional study, 103 complete feed samples from laying hen herds affected by plumage damage as an indirect measure for severe feather pecking (affected herds; AH, n = 37) and control herds without plumage damage (control herd; CH, n = 66) of commercial German farms were examined by dry sieve and nutrient analysis. AH showed higher percentages of particles >2.50 mm (mean ± SD, CH: 11. ...
DOI:
10.3390/ani11030773

5. Female swamp sparrows do not show evidence of discriminating between the songs of peak‐aged and senescent males

Author:
Zipple, Matthew N.; Peters, Susan; Searcy, William A.; Nowicki, Stephen
Source:
Ethology 2021 v.127 no.1 pp. 91-97
ISSN:
0179-1613
Subject:
animal age,   etc   ; Melospiza georgiana; copulation; courtship; females; males; senescence (aging); territoriality; vocalization;     Show all 9 Subjects
Abstract:
... Sexual selection theory predicts that females face contrasting selection pressures when choosing the age of their mate. On the one hand, older males have demonstrated their ability to survive and they may be more experienced than younger males. At the same time, however, younger males are expected to have accumulated fewer deleterious mutations in their germline as compared to older males. These c ...
DOI:
10.1111/eth.13102

6. Evaluation of the effects of sire and dam calving group on age at first calving in Brahman heifers

Author:
Earnhardt, A.L.; Neuendorff, D.A.; Long, C.R.; Welsh, T.H.; Randel, R.D.
Source:
Theriogenology 2021 v.167 pp. 32-36
ISSN:
0093-691X
Subject:
animal age,   etc   ; Brahman; bulls; calving; dams (mothers); daughters; heifers; male fertility; pregnancy; sexual maturity; sire evaluation; sires; yearlings;     Show all 13 Subjects
Abstract:
... This study evaluated the possible effects of sire and dam calving groups on age at first calving in Brahman heifers. A total of 570 heifers born between the years 2004 and 2017 were exposed as yearlings to fertile bulls through time of pregnancy determination. A calving group was determined by calculating the mean (993 d) and standard deviation (187 d) of heifer age at first calving. Heifers consi ...
DOI:
10.1016/j.theriogenology.2021.03.005

7. Ex vivo comparison of standing and recumbent repair of incomplete parasagittal fractures of the first phalanx in horses

Author:
Labens, Raphael; Jermyn, Kieri
Source:
Veterinary surgery 2021 v.50 no.4 pp. 775-783
ISSN:
0161-3499
Subject:
animal age,   etc   ; analysis of variance; body weight; bones; cadaver; computed tomography; electric potential difference; horses; ligaments; surgery; t-test;     Show all 11 Subjects
Abstract:
... OBJECTIVE: To assess suspensory ligament extensor branch location and fracture gap reduction with simulation of standing and recumbent cortical bone screw repair of experimental incomplete parasagittal proximal phalanx (P1) fractures. STUDY DESIGN: Controlled laboratory study. SAMPLE POPULATION: Twenty equine cadaver forelimbs. METHODS: Simulated fractures were repaired twice in random order. A pr ...
DOI:
10.1111/vsu.13612

8. The influence of age and gender on the quality of raw and roasted wild boars (Sus scrofa) meat

Author:
Modzelewska-Kapituła, Monika; Żmijewski, Tomasz
Source:
Meat science 2021 v.181 pp. 108600
ISSN:
0309-1740
Subject:
animal age,   etc   ; Sus scrofa; chewiness; color; females; hardness; males; meat; meat quality; protein content; raw meat; sensory properties; texture; wild boars; yearlings;     Show all 15 Subjects
Abstract:
... The aim of this study was to determine the influence of age and gender on the chemical composition, colour, texture and sensory attributes of wild boars meat (Sus scrofa, n = 48). The animals were analysed in 6 groups (n = 8), differed in age (piglets below 1 year, yearlings 1–2 years, and adults over 2 years) and gender (male and female). Protein content in raw meat was affected by age, whereas i ...
DOI:
10.1016/j.meatsci.2021.108600

9. Comparison of Liver Condemnation and Bile Microscopy As Tools to Estimate Fasciola hepatica Prevalence and Burden in the Anta Province of Cusco in Peru

Author:
Caravedo, Maria Alejandra; White, A. Clinton; Morales, Maria Luisa; Lopez, Martha; Tanabe, Melinda Barbara; Baca-Turpo, Benicia; Arque, Eulogia; Madrid, Daniela; Vallabh, Prithvi; Bascope, Ruben; Cabada, Miguel Mauricio
Source:
Vector borne and zoonotic diseases 2021 v.21 no.9 pp. 707-712
ISSN:
1557-7759
Subject:
animal age,   etc   ; Fasciola hepatica; bile; carcass weight; cattle; fascioliasis; gender; liver; livestock and meat industry; microscopy; prediction; slaughterhouses; wet season; zoonoses; Peru;     Show all 15 Subjects
Abstract:
... Fascioliasis is a zoonotic infection linked to significant economic losses in the livestock industry. Infection prevalence and estimated financial burden vary across locations owing to different diagnostic tests used. The accuracy of liver condemnation to estimate the prevalence and costs of fascioliasis has seldom been evaluated. We performed a pilot study to determine the prevalence and burden o ...
DOI:
10.1089/vbz.2020.2753

10. Walrus teeth as biomonitors of trace elements in Arctic marine ecosystems

Author:
Clark, Casey T.; Horstmann, Lara; Misarti, Nicole
Source:
The Science of the total environment 2021 v.772 pp. 145500
ISSN:
0048-9697
Subject:
animal age,   etc   ; Odobenus rosmarus; animals; arsenic; barium; environment; environmental exposure; environmental monitoring; food intake; indicator species; lead; physiology; strontium; time series analysis; zinc; Arctic region;     Show all 16 Subjects
Abstract:
... Effective biomonitoring requires an understanding of the factors driving concentrations of the substances or compounds of interest in the tissues of studied organisms. Biomonitoring of trace elements, and heavy metals in particular, has been the focus of much research; however, the complex roles many trace elements play in animal and plant tissues can make it difficult to disentangle environmental ...
DOI:
10.1016/j.scitotenv.2021.145500

11. Behavior patterns of captive Malayan sun bears (Helarctos malayanus) at a rehabilitation center in Peninsular Malaysia

Author:
Izzat-Husna, Muhammad; Mansor, Mohammad Saiful; Nabilah, Noor; Abidin, Kamaruddin Zainul; Kamarudin, Zubaidah; Topani, Rahmat; Nor, Shukor Md
Source:
Journal of veterinary behavior 2021 v.43 pp. 39-45
ISSN:
1558-7878
Subject:
animal age,   etc   ; Helarctos malayanus; adults; animal behavior; animal care; animal feeding; animal welfare; captive animals; human-wildlife relations; juveniles; stereotyped behavior; wildlife rehabilitation; young animals; Malaysia;     Show all 14 Subjects
Abstract:
... Achieving good welfare of Malayan sun bears (Helarctos malayanus) in captivity through understanding behavioral aspects is crucial in providing improved captive management for conservation purposes. The Malayan sun bear is the smallest bear species and remains the least studied member of the Ursid family. We investigated the behavior patterns of 11 captive sun bears (four cubs, four sub-adults, an ...
DOI:
10.1016/j.jveb.2020.12.004

12. Diagnostic utility of cerebrospinal fluid analysis in dogs with suspected idiopathic epilepsy

Author:
Gilbert, SE; Cardy, TJ; Bertram, S; Taylor‐Brown, F
Source:
Australian veterinary journal 2021 v.99 no.1-2 pp. 1-5
ISSN:
0005-0423
Subject:
animal age,   etc   ; brain; cerebrospinal fluid; disease diagnosis; dog diseases; dogs; epilepsy; idiopathic diseases; leukocyte disorders; magnetic resonance imaging; neurological examination; retrospective studies; seizures;     Show all 13 Subjects
Abstract:
... BACKGROUND: Idiopathic epilepsy (IE) is the most common cause of repeated seizures in dogs. The International Veterinary Epilepsy Task Force consensus guidelines recommend performing magnetic resonance imaging (MRI) of the brain and cerebrospinal fluid (CSF) analysis as part of a tier II diagnosis of IE, and these procedures have documented risks. The aim of this retrospective study was to identif ...
DOI:
10.1111/avj.13018

13. Meat of South American camelids - Sensory quality and nutritional composition

Author:
Popova, Teodora; Tejeda, Leslie; Peñarrieta, J. Mauricio; Smith, Melanie A.; Bush, Russell D.; Hopkins, David L.
Source:
Meat science 2021 v.171 pp. 108285
ISSN:
0309-1740
Subject:
animal age,   etc   ; Camelidae; alfalfa; alpacas; animal nutrition; barley; bioavailability; color; diet; electrical treatment; fatty acid composition; hay; llamas; meat quality; nutrient content; pastures; sensory properties;     Show all 17 Subjects
Abstract:
... Meat contains a range of nutrients in a highly bioavailable form and when meat is excluded from the diet, without being replaced with suitable alternatives, nutrient deficiencies may occur. For this reason, it is very important to extend our knowledge of nutrients in alternative red meats, such as that provided from the South American camelids- llama and alpaca. This review summarises the current ...
DOI:
10.1016/j.meatsci.2020.108285

14. 55 Donor age has the least influence on recovery, quality, and in vitro developmental competence of ovum pickup–based Holstein Friesian oocytes under subtropical conditions

Author:
Yaseen, M.; Saleem, M.; Nawaz, M.; Ahmad, N.; Riaz, A.
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 134
ISSN:
1031-3613
Subject:
animal age,   etc   ; Holstein; adults; blastocyst; bulls; embryo transfer; estrus; genetic improvement; heifers; humidity; lactation; mineral oil; oocytes; ovarian follicles; periodicity; semen; sperm motility; spermatozoa; ultrasonography; Pakistan;     Show all 20 Subjects
Abstract:
... The use of oocytes obtained from younger donors for invitro fertilization followed by embryo transfer represents an opportunity to accelerate genetic gain by reducing generation interval. The present study was designed to evaluate the effect of age of donor on the follicular population, recovery, quality and invitro developmental competence of ovum pickup based Holstein Friesian oocytes under subt ...
DOI:
10.1071/RDv33n2Ab55

15. An Exploration of the Value of Elective Health Checks in UK Zoo-Housed Gibbons

Author:
Kershaw, Tawny; Hall, Emily J.; Dobbs, Phillipa; Liptovszky, Matyas; Strong, Victoria
Source:
Animals 2020 v.10 no.12
ISSN:
2076-2615
Subject:
animal age,   etc   ; cost benefit analysis; elderly; health services; longevity; radiography; regression analysis; risk;     Show all 8 Subjects
Abstract:
... Elective health checks form an important part of the preventative healthcare of many zoo-housed animals. These procedures are not without risk or financial expenditure, meaning careful cost–benefit analysis is required when determining the frequency and intensity with which they are implemented. This study evaluated the value of elective health checks (n = 74) carried out on 33 gibbons at a single ...
DOI:
10.3390/ani10122307

16. An historical view of the experimental leptospiral infection in ruminants

Author:
Rocha, Bruno Ribeiro; Martins, Gabriel; Lilenbaum, Walter
Source:
Comparative immunology, microbiology, and infectious diseases 2020 v.73 pp. 101532
ISSN:
0147-9571
Subject:
animal age,   etc   ; ; Leptospira; acute course; death; fever; hematuria; immunology; leptospirosis; microbiology; pathogenesis; pathophysiology; placenta; serotypes;     Show all 14 Subjects
Abstract:
... The first experimental infections with Leptospira in ruminants were conducted in the 1950s, primarily assessed the pathogenesis caused by serovar Pomona in cows. Throughout the decades, experimental infections have also demonstrated the clinical aspects of the infection by other strains, mainly Hardjo. Despite the important outcomes observed in experimental infections in ruminants, there is still ...
DOI:
10.1016/j.cimid.2020.101532

17. Computed tomography measurements of presumptively normal canine sternal lymph nodes

Author:
Stehlík, Ladislav; Vitulová, Hana; Simeoni, Francesco; Proks, Pavel; Vignoli, Massimo
Source:
BMC veterinary research 2020 v.16 no.1 pp. 269
ISSN:
1746-6148
Subject:
animal age,   etc   ; body size; body weight; computed tomography; dogs; image analysis; lymph nodes; retrospective studies; sternum;     Show all 9 Subjects
Abstract:
... BACKGROUND: There is a lack of information regarding the CT appearance of sternal lymph nodes in dogs. This retrospective anatomic study was aimed to describe the general appearance of sternal lymph nodes in healthy dogs. RESULTS: Twenty-seven dogs with no abnormality in blood work, urinalysis and CT images were included in the study. Dogs were divided into three weight groups; ≤10 kg, 10.1 to 30  ...
DOI:
10.1186/s12917-020-02497-y

18. Variability of Stress Indicators in Jumping Horses in Parkour Due to Horse Age and Competitive Season

Author:
Gregić, Maja; Bobić, Tina; Baban, Mirjana; Bunevski, Gjoko; Gantner, Vesna
Source:
Macedonian veterinary review 2020 v.43 no.2 pp. 169-173
ISSN:
1857-7415
Subject:
animal age,   etc   ; age structure; animal stress; cortisol; glucose; heart rate; horses; jumping; lactic acid; monitoring; saliva;     Show all 11 Subjects
Abstract:
... Aiming to determine the variability in stress indicators due to horse age and competitive season (May, July, September) in jumping horses in parkour, research was performed on 14 studs (7 younger, and 7 older) trained and bred in the same conditions. The stress indicators (heartbeats, cortisol, glucose, and lactate concentrations in saliva) were measured or sampled before, during and at the end of ...
DOI:
10.2478/macvetrev-2020-0029

19. A Comparison of Computer-Based Methods for Estimating the Age of Animals

Author:
Sukhanov, V. V.; Selin, N. I.
Source:
Russian journal of marine biology 2020 v.46 no.5 pp. 379-386
ISSN:
1063-0740
Subject:
animal age,   etc   ; Mizuhopecten yessoensis; age determination; algorithms; journals; statistical analysis; surfaces; testing;     Show all 8 Subjects
Abstract:
... The advantages and disadvantages of statistical methods for estimating the age of animals that lack recording structures are discussed in the article. The discussion is supported by examples from studies on the growth of the bivalve mollusk Mizuhopecten yessoensis (Jay, 1857). The age of individuals of this species can easily be determined by morphological marks on the shell surface. This makes it ...
DOI:
10.1134/S1063074020050090

20. Evaluating the performance of a miniaturized NIR spectrophotometer for predicting intramuscular fat in lamb: A comparison with benchtop and hand-held Vis-NIR spectrophotometers

Author:
Dixit, Y.; Pham, H.Q.; Realini, C.E.; Agnew, M.P.; Craigie, C.R.; Reis, M.M.
Source:
Meat science 2020 v.162 pp. 108026
ISSN:
0309-1740
Subject:
animal age,   etc   ; cost effectiveness; freeze drying; ground lamb meat; intramuscular fat; least squares; prediction; spectrophotometers; temperature;     Show all 9 Subjects
Abstract:
... This study compares a miniaturized spectrophotometer to benchtop and hand-held Vis-NIR instruments in the spectral range of 900–1700 nm for prediction of intramuscular fat (IMF) content of freeze-dried ground lamb meat; and their ability to differentiate fresh lamb meat based on animal age (4 vs 12 months). The performance of the miniaturized spectrophotometer was not affected by sample temperatur ...
DOI:
10.1016/j.meatsci.2019.108026