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https://www.readbyqxmd.com/read/28215014/management-of-a-dutch-resident-barnacle-goose-branta-leucopsis-population-how-can-results-from-counts-ringing-and-hunting-bag-statistics-be-reconciled
#1
Henk P van der Jeugd, Anne Kwak
The resident Dutch Northern Delta barnacle geese Branta leucopsis population expanded steadily since birds first bred in 1982, increasing agricultural conflict. Derogation shooting has been used since 2005 to scare geese from sensitive crops and to reduce population size. Numbers almost doubled to ca. 28 000 individuals during 2007-2014, despite annual removal of 15-25% of geese and adult and juvenile survival rates of 79 and 67% (cf. natural survival of 96% for both age classes). Simple population modelling, using estimated annual survival values and fixed fecundity, predicted a moderate increase to 21 500 individuals in 2014...
March 2017: Ambio
https://www.readbyqxmd.com/read/28211483/colonisation-in-social-species-the-importance-of-breeding-experience-for-dispersal-in-overcoming-information-barriers
#2
A Payo-Payo, M Genovart, A Sanz-Aguilar, J L Greño, M García-Tarrasón, A Bertolero, J Piccardo, D Oro
Studying colonisation is crucial to understand metapopulations, evolutionary ecology and species resilience to global change. Unfortunately, few empirical data are available because field monitoring that includes empty patches at large spatiotemporal scales is required. We examine the colonisation dynamics of a long-lived seabird over 34 years in the western Mediterranean by comparing population and individual data from both source colony and the newly-formed colonies. Since social information is not available, we hypothesize that colonisation should follow particular dispersal dynamics and personal information must be crucial in decision making...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211150/genomic-prediction-of-reproduction-traits-for-merino-sheep
#3
S Bolormaa, D J Brown, A A Swan, J H J van der Werf, B J Hayes, H D Daetwyler
Economically important reproduction traits in sheep, such as number of lambs weaned and litter size, are expressed only in females and later in life after most selection decisions are made, which makes them ideal candidates for genomic selection. Accurate genomic predictions would lead to greater genetic gain for these traits by enabling accurate selection of young rams with high genetic merit. The aim of this study was to design and evaluate the accuracy of a genomic prediction method for female reproduction in sheep using daughter trait deviations (DTD) for sires and ewe phenotypes (when individual ewes were genotyped) for three reproduction traits: number of lambs born (NLB), litter size (LSIZE) and number of lambs weaned...
February 17, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28208707/gaitkeeper-a-system-for-measuring-canine-gait
#4
Cassim Ladha, Jack O'Sullivan, Zoe Belshaw, Lucy Asher
It is understood gait has the potential to be used as a window into neurodegenerative disorders, identify markers of subclinical pathology, inform diagnostic algorithms of disease progression and measure the efficacy of interventions. Dogs' gaits are frequently assessed in a veterinary setting to detect signs of lameness. Despite this, a reliable, affordable and objective method to assess lameness in dogs is lacking. Most described canine lameness assessments are subjective, unvalidated and at high risk of bias...
February 8, 2017: Sensors
https://www.readbyqxmd.com/read/28203619/variation-in-the-response-of-eastern-and-southern-africa-provenances-of-faidherbia-albida-delile-a-chev-seedlings-to-water-supply-a-greenhouse-experiment
#5
Grace Koech, Daniel Ofori, Anne W T Muigai, Jonathan Muriuki, Parveen Anjarwalla, Jan De Leeuw, Jeremias G Mowo
Rural communities value Faidherbia albida in farming systems and pastoralism. Faidherbia albida provides products such as medicine, fodder, fuel, wood, food and services such as shade, soil fertility and nutrient cycling. Excessive browsing by animals, branch lopping and pod harvesting, have critically reduced the natural regeneration in some areas which exposes it to challenges due to dependence upon natural regeneration. The objective of this research was to evaluate response of Faidherbia albida provenances from eastern (Taveta Wangingombe) and southern Africa (Lupaso, Kuiseb Manapools) to different watering regimes to aid in selection of provenances for domestication...
October 2016: Global Ecology and Conservation
https://www.readbyqxmd.com/read/28201985/genetic-parameters-of-resistance-to-vibrio-aestuarianus-and-oshv-1-infections-in-the-pacific-oyster-crassostrea-gigas-at-three-different-life-stages
#6
Patrick Azéma, Jean-Baptiste Lamy, Pierre Boudry, Tristan Renault, Marie-Agnès Travers, Lionel Dégremont
BACKGROUND: In France, two main diseases threaten Pacific oyster production. Since 2008, Crassostrea gigas spat have suffered massive losses due to the ostreid herpesvirus OsHV-1, and since 2012, significant mortalities in commercial-size adults have been related to infection by the bacterium Vibrio aestuarianus. The genetic basis for resistance to V. aestuarianus and OsHV-1 and the nature of the genetic correlation between these two traits were investigated by using 20 half-sib sire families, each containing two full-sib families...
February 15, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28199171/climate-adaptation-of-tropical-cattle
#7
W Barendse
There is sustained growth in the number of tropical cattle, which represent more than half of all cattle worldwide. By and large, most research in tropical areas is still focused on breeds of cattle, their particular advantages or disadvantages in tropical areas, and the tropical forages or feeds that could be usefully fed to them. A consistent issue for adaptation to climate is the heat of tropical environments. Changing the external characteristics of the animal, such as color and coat characteristics, is one way to adapt, and there are several major genes for these traits...
February 8, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/28197154/cowpea-and-groundnut-haulms-fodder-trading-and-its-lessons-for-multidimensional-cowpea-improvement-for-mixed-crop-livestock-systems-in-west-africa
#8
Anandan Samireddypalle, Ousmane Boukar, Elaine Grings, Christian A Fatokun, Prasad Kodukula, Ravi Devulapalli, Iheanacho Okike, Michael Blümmel
Cowpea is an important legume crop in Africa, valued highly for its grain and also haulms, which are a tradable commodity in fodder markets. Fodder market surveys in Northern Nigeria showed that groundnut haulms were priced higher than cowpea haulms, probably because of their superior nutritive value. The economic value of haulms has prompted cowpea breeders and livestock nutritionists to explore haulm fodder traits as additional selection and breeding criteria. Fifty cowpea genotypes cultivated across five locations in Nigeria in 2013 and 2014 were evaluated for food fodder traits...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28195648/hematology-and-biochemistry-of-aging-evidence-of-anemia-of-the-elderly-in-old-dogs
#9
Lauren B Radakovich, Stephen C Pannone, Matthew P Truelove, Christine S Olver, Kelly S Santangelo
BACKGROUND: Effects of aging on hematologic and biochemical variables are well described in people. Anemia of the elderly is attributed to iron deficiency, anemia of chronic disease, chronic kidney disease, myelodysplasia, or idiopathic causes. Limited studies have examined these variables in aging dogs, but they have typically examined single breeds in research settings. OBJECTIVE: The objective of this study was to identify differences in CBC and biochemistry values between adult and aged dogs of many breeds...
February 13, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28192458/transcriptome-analysis-of-hexaploid-hulless-oat-in-response-to-salinity-stress
#10
Bin Wu, Yani Hu, Pengjie Huo, Qian Zhang, Xin Chen, Zongwen Zhang
BACKGROUND: Oat is a cereal crop of global importance used for food, feed, and forage. Understanding salinity stress tolerance mechanisms in plants is an important step towards generating crop varieties that can cope with environmental stresses. To date, little is known about the salt tolerance of oat at the molecular level. To better understand the molecular mechanisms underlying salt tolerance in oat, we investigated the transcriptomes of control and salt-treated oat using RNA-Seq. RESULTS: Using Illumina HiSeq 4000 platform, we generated 72,291,032 and 356,891,432 reads from non-stressed control and salt-stressed oat, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28184981/association-mapping-utilizing-diverse-barley-lines-reveals-net-form-net-blotch-seedling-resistance-susceptibility-loci
#11
Jonathan K Richards, Timothy L Friesen, Robert S Brueggeman
A diverse collection of barley lines was phenotyped with three North American Pyrenophora teres f. teres isolates and association analyses detected 78 significant marker-trait associations at 16 genomic loci. Pyrenophora teres f. teres is a necrotrophic fungal pathogen and the causal agent of the economically important foliar disease net form net blotch (NFNB) of barley. The deployment of effective and durable resistance against P. teres f. teres has been hindered by the complexity of quantitative resistance and susceptibility...
February 9, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28182289/phenotypic-diversity-and-evaluation-of-fresh-pods-of-cowpea-landraces-from-southern-europe
#12
Efstathia Lazaridi, Georgia Ntatsi, Juan Antonio Fernández, Ioannis Karapanos, Valdemar Carnide, Dimitrios Savvas, Penelope J Bebeli
BACKGROUND: Cowpea fresh pods are consumed as green vegetables in many countries in Southern Europe. Among cowpea cultivated material a relatively large number of landraces can be found, maintaining species genetic diversity. In order to assess the value of these landraces in breeding programs, characterization and estimation of diversity levels are therefore required. In this study, estimation of diversity and evaluation of cowpea landraces, originating from Portugal, Spain and Greece, in terms of their fresh pod traits were performed, aiming to assist the problem of low cowpea production in Southern Europe...
February 9, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28177394/whole-genomic-prediction-of-growth-and-carcass-traits-in-a-chinese-quality-chicken-population
#13
Z Zhang, Z-Q Xu, Y-Y Luo, H-B Zhang, N Gao, J-L He, C-L Ji, D-X Zhang, J-Q Li, X-Q Zhang
By incorporating high-density markers into breeding value prediction models, the whole genomic prediction (WGP) method can effectively accelerate genetic improvement in livestock breeding. However, the performance of WGP varies across species and populations and is affected by the underlying genetic architecture. In particular, very little is known about the performance of WGP for many chicken breeds. Here we estimate the genetic parameters and evaluate the performance of WGP for 18 growth and carcass traits in a Chinese quality chicken population...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28177386/defining-risk-for-low-reticuloruminal-ph-during-the-diet-transition-period-in-a-commercial-feedlot-in-western-canada
#14
B I Wiese, S Hendrick, J G Campbell, J J McKinnon, K A Beauchemin, T A McAllister, G B Penner
The objective of the current study was to measure reticuloruminal pH in cattle in a commercial feedlot setting to determine the incidence and extent of low reticuloruminal pH for steers and heifers as they transition to a high-concentrate finishing diet. Reticuloruminal pH was measured in 16 "mixed breed" steers (4 steers/pen with 4 pens) and 16 "mixed breed" heifers (4 heifers/pen with 4 pens) housed in commercial feedlot pens, with 227 ± 13 and 249 ± 6 cattle/pen cohort steers and heifers, respectively, for the diet transition period...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28177371/repeatability-vs-multiple-trait-models-to-evaluate-shell-dynamic-stiffness-for-layer-chickens
#15
A Wolc, J Arango, P Settar, N P O'Sullivan, J C M Dekkers
Shell quality is one of the most important traits for improvement in layer chickens. Proper consideration of repeated records can increase the accuracy of estimated breeding values and thus genetic improvement of shell quality. The objective of this study was to compare different models for genetic evaluation of the collected data. For this study, 81,646 dynamic stiffness records on 21,321 brown egg layers and 93,748 records on 24,678 white egg layers from 4 generations were analyzed. Across generations, data were collected at 2 to 4 ages (at approximately 26, 42, 65, and 86 wk), with repeated records at each age...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28177346/how-to-improve-breeding-value-prediction-for-feed-conversion-ratio-in-the-case-of-incomplete-longitudinal-body-weights
#16
V H Huynh Tran, H Gilbert, I David
With the development of automatic self-feeders, repeated measurements of feed intake are becoming easier in an increasing number of species. However, the corresponding BW are not always recorded, and these missing values complicate the longitudinal analysis of the feed conversion ratio (FCR). Our aim was to evaluate the impact of missing BW data on estimations of the genetic parameters of FCR and ways to improve the estimations. On the basis of the missing BW profile in French Large White pigs (male pigs weighed weekly, females and castrated males weighed monthly), we compared 2 different ways of predicting missing BW, 1 using a Gompertz model and 1 using a linear interpolation...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28173805/serum-proteomic-profiles-in-ckcs-with-mitral-valve-disease
#17
Chiara Locatelli, Cristian Piras, Giulia Riscazzi, Isabella Alloggio, Ilaria Spalla, Alessio Soggiu, Viviana Greco, Luigi Bonizzi, Paola Roncada, Paola G Brambilla
BACKGROUND: Myxomatous mitral valve disease (MVD) is the most common acquired heart disease in dogs, and the Cavalier King Charles Spaniel (CKCS) is the most studied breed because of the high prevalence, early onset and hereditary component evidenced in the breed. MVD has different severity levels, and there are many practical limitations in identifying its asymptomatic stages. Proteomic techniques are valuable for studying the proteins and peptides involved in cardiovascular diseases, including the period prior to the clinical onset of the disease...
February 7, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28168515/the-bamboo-aquaporin-gene-petip4-1-1-confers-drought-and-salinity-tolerance-in-transgenic-arabidopsis
#18
Huayu Sun, Lichao Li, Yongfeng Lou, Hansheng Zhao, Yihong Yang, Sining Wang, Zhimin Gao
PeTIP4;1-1, an aquaporin gene involved in bamboo shoot growth, is regulated by abiotic stresses. Overexpression of PeTIP4;1-1 confers drought and salinity tolerance in transgenic Arabidopsis. Aquaporins play a central role in numerous physiological processes throughout plant growth and development. PeTIP4;1-1, an aquaporin gene isolated from moso bamboo (Phyllostachys edulis), comprises an open reading frame (ORF) of 756 bp encoding a peptide of 251 amino acids. The genomic sequence corresponding to the ORF of PeTIP4;1-1 was 1777 bp and contained three exons separated by two introns...
February 6, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28167273/mybs-affect-the-variation-in-the-ratio-of-anthocyanin-and-flavanol-in-fruit-peel-and-flesh-in-response-to-shade
#19
Yanfen Lu, Yufen Bu, Suxiao Hao, Yaru Wang, Jie Zhang, Ji Tian, Yuncong Yao
Fruit pigment accumulation, which represents an important indicator of nutrient quality and appearance value, is often affected by low light under rain, cloud, fog and haze conditions during the veraison period. It is not known whether continuous low light interferes with the production and accumulation of secondary metabolites in veraison fruit. In this paper, we measured pigments and the transcriptional level of genes related to secondary metabolites, i.e., flavonoid biosynthesis in the peel and flesh of Malus crabapple 'Radiant' fruit in response to normal light and shade from 10th July to 30th August...
January 31, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28165413/potential-uses-of-wild-germplasms-of-grain-legumes-for-crop-improvement
#20
REVIEW
Nacira Muñoz, Ailin Liu, Leo Kan, Man-Wah Li, Hon-Ming Lam
Challenged by population increase, climatic change, and soil deterioration, crop improvement is always a priority in securing food supplies. Although the production of grain legumes is in general lower than that of cereals, the nutritional value of grain legumes make them important components of food security. Nevertheless, limited by severe genetic bottlenecks during domestication and human selection, grain legumes, like other crops, have suffered from a loss of genetic diversity which is essential for providing genetic materials for crop improvement programs...
February 4, 2017: International Journal of Molecular Sciences
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