Month: March 2016

Sexual maturity prediction based on hormonal profiles, testes and semen characteristics in male Coturnix quail (Garsault, 1764) in the Western Highlands of Cameroon

François Djitie Kouatcho, Augustave Kenfack, Ferdinand Ngoula, Alexis Teguia

Department of Biological Science, Faculty of Science, University of Ngaoundéré, Cameroon

Department of Animal Science, Faculty of Agronomy and Agricultural Science, University of Dschang, Cameroon

Key words: Sexual Maturity, Hormones, Testes morphometry, Semen, Quail.

Abstract

Human_semen_in_a_petri_dishWith the aim to investigate age at sexual maturity in male quail in the Western Highlands of Cameroon, a study was conducted on 68 quails of 4 weeks old. Data were collected during 14 weeks on FSH, LH and testosterone levels as well as testes and semen characteristics. FSH and LH rate were similar and higher from 6 to 15 weeks old. Highest testosterone levels were recorded on 15 (2.25 ng/ml) and 18 (2.62 ng/ml) weeks old quails. Testes weight, height, diameter as well as gonadosomatic index recorded from 12 to 18 weeks old were similar but significantly higher than others. Morphometric characteristics of seminiferous tubules at 6 and 9 weeks old were similar but significantly lower than later values. Comparable sizes of seminiferous tubules circumference and germinal epithelium height were noticed from 15 weeks old. Histological analysis of testes sections showed fully developed and active seminiferous tubules from week 12 but, spermatogenic activity was more pronounced at week 15. Mass and individual motilities were comparable with quail age. However, the highest sperm count was recorded at 12 weeks old compared to later values. It has been concluded that age at sexual maturity in male quail could be situated around 12 weeks in the context of the Western Highlands of Cameroon.

Source:

* Pdf: http://www.innspub.net/wp-content/uploads/2015/10/IJAAR-V7No4-p143-154.pdf

The combination of spectral and spatial data in zoning of landslide susceptibility (Case study: Sangorchay reservoir)

Mohmmad Hoessin Fathi, Kazem Khohdel, Amir Shoreh Kandi, Zahra Ashrafifeini, Mohammad Ali Khaliji

Geomorphology, Department of Geography, Mohaghegh Ardabili University, Ardabil, Iran

Geomorphology, Department of Geography, Tabriz University, Tabriz, Iran

Department of Urbanism, Young Researchers and Elite club, Bonab Branch, Islamic Azad University, Bonab, Iran

Key words: Landslide, Sangorchay, Spectral indexes, Spatial data, MCDM models.

Abstract

cecil_lakeMaps of landslide susceptibility is one of the most important necessary tools for the environmental programmers and people who make decisions especially in mountainous areas. The main goal of this research is to evaluate and use the data and methods of far-distance evaluation such as satellite images and also to use Multiple Criteria Decision Making models in Zoning of landslide susceptibility. (ANP) Analytic Network process is among the models of preparing map of landslide susceptibility this model has kept the capabilities and advantages of AHP model and has fulfilled the related problems and therefore in recent years it has been used more than AHP and has actually replaced it. In this research, we have zoned the landslide susceptibility in Sangor Chay. For this research, we have used 17 natural and human parameters (rainfall, distance to fault, distance to river, drainage density, slope degree and direction, land usage, vegetation coverage and etc.) Choice, decision and ENVI are among the tools that are used for pair comparisons, providing data and performing the model. Evaluation results show that 76 percent of landslides that have been occurred in the region, belong to “dangerous” and “extremely dangerous” classes. According to this, Data and parameters resulted from far-distance models and also multiple criteria Decision making models, are likely to be suitable for forecasting the landslide susceptibility.

Source:

* Pdf: http://www.innspub.net/wp-content/uploads/2015/05/JBES-Vol6No2-p515-527.pdf

Phylogenetic study of disease-resistant genes in silico

Mahsa Mohammad Jani Asrami, Hamid Najafi Zarrini

Plant Breeding Department, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran

Key words: Resistance genes, Cluster analysis, Phylogenetic analysis.

Abstract

BotGardenSmallDespite singnificant advances in plant disease control strategies, but also a large number of pathogens and pests are bringing a lot of damage. By comparing the amino acid sequences of proteins encoded by the resistance genes in plants with different evolutionary origin has been shown that resistance genes based on structural similarity to the protein products of the NBS–LRR (Nucleotide binding Site-Leucine Rich Repeats), LRR extracellular, LRR–kinase receptors are classified. This study investigate the relationship between protein sequences of gene in various plants, their intraction was determined Bioinformatics software. The protein sequence cluster analysis identified which these genes are located in three groups. Arabidopsis thaliana plant containing the resistance gene RLM1 located in a seprate group . Evolutionary distance matrix results showed that most distance (0.99) between the plant Populus trichocarpa and Solanum lypersicum and the minimum distance (0.287) between Solanum lypersicum and Vitis vinifera. The results of the simulated rank protein that resistance genes are far apart and have not a similar origin. Functional results Rlm1 gene in Arabidopsis thaliana revealed that this gene is located on chromosome 1 and united with intercellular or extracellular signals in transmission of signals from a membrane to the other works.

Source:

* Pdf: http://www.innspub.net/wp-content/uploads/2015/01/IJB-V6No2-p237-241.pdf

In vitro anthelmintic activity of Tunisian fabacae (Hedysarum coronarium L., ecotype Bikra 21) against Haemonchus contortus

A.Aissa, F. Manolaraki, H. Ben Salem, K. Kraiem, H. Hoste

Institut Supérieur Agronomique de Chott-Mariem, Chott-Mariem, Sousse, Tunisie

UMR 1225 INRA/ENVT. Eole Nationale Vétérinaire de Toulouse, Toulouse, France

International Center for Agricultural Research in the Dry Areas (ICARDA). Amman, Jordan

Key words: Hedysarum coronarium, Tannins, parasitic nematode, Larval exsheathment assay.

Abstract

Hedysarum coronarium, 1625The use of bioactive tanniniferous plants was suggested as an alternative to control gastrointestinal nematodes (GIN) infections in small ruminants. This study aimed to evaluate the anthelmintic effect of acetonic extract of Hedysarum coronarium (Ecotype Bikra 21, sulla) as fresh or dried biomass (hay) in the infective larvae (L3) of Haemonchus contortus. The larval exsheathment assay (LEA) was used to determine the proportions (%) of exsheathment of two plant acetonic extracts at different concentrations (1200, 600, 300, 150 μg/ml). To confirm the role of tannins in the anthelmintic effects of extracts, polyvinylpolypyrolidone (PVPP) was used as deactivating chemical tannins. The results indicated that the proportion of exsheathement was dose-dependent. Fresh sulla had the highest levels of total tannins (TT), total phenols (TP), condensed tannins (CT) and the highest biological activity (BA). It also stopped nearly the exsheathment process. Tannins are involved in anthelmintic (AH) effects because of the restoration of L3 exsheathment to values similar to those of controls after the addition of PVPP. It is concluded that in vivo investigation should be conducted to confirm the AH activity of sulla.

Source:

* Pdf: http://www.innspub.net/wp-content/uploads/2015/10/IJAAR-V7No4-p103-110.pdf

Petrography and geochemistry of metasomatic rocks in Se-Chahun mine, Bafgh, Central Iran

Zahra Hossein Mirzaei Beni, M. H. Emami, S. J. Sheikhzakariaee, A. Nasr Esfahani

Department of Geology, Science and Research Branch, Islamic Azad University (IAU), Teheran, Iran

Department of Geology, Science and Research Branch, Islamic Azad University, Eslamshahr (Tehran), Iran

Department of Geology, Science and Research Branch, Islamic Azad University, Teheran, Iran

Department of Geology, Islamic Azad University (IAU), Isfahan branch (Khorasgan), Iran

Key words: Geochemistry, Metasomatism rocks, Petrography, Se-Chahun mine.

Abstract

d7_tout_monumentBafgh mineral region is part of the Central Iran micro continent. Host rocks of Se-Chahun mine are mostly under the effect of sodic, sodic-calcic, potassic and low-temperature alterations. Sodic-calcic alteration was wider than sodic and potassic alterations. Host rocks are classified to two grouped on the basis of structural changes: micro crystal metasomatits that mostly are seen with dark gray to green-gray color. Minerals set forming these rocks are similar to other metasomatits with macro crystal structure (actinolite, albite, epidote and magnetite). Main minerals forming macro crystals included actinolite, albite and magnetite; and by going near to mineralization place, magnetite mineral percentage increases. In altered rock of the mine AI and CCPI indexes were 79-20 and 90-19 orderly for low-altered and altered rocks and alteration strength increases from relatively healthy rhyolite rocks to other rocks. Existed amphibole mineral in altered rocks were classified in the range of calcite amphibole with the type of actinolite to ferroactinolite and plagioclases compounds varied from oligoclase to andesine. alkalin samples of feldspar located in the range of 70%-90% of orthoclase.

Source:

* Pdf: http://www.innspub.net/wp-content/uploads/2015/03/JBES-Vol6No2-p461-471.pdf