Welcome to send your manuscript to: lifesciencej@gmail.com

No.

Titles / Authors /Abstracts

Full Text

No.

1

Characteristics, Description and the Morphology of Major gram Positive Bacteria

Abebe Mequanent

University of Gondar College of Veterinary Medicine and Animal Science, Department of Veterinary Clinical Medicine, Gondar, Ethiopia, P.O. Box: 196.

E-mail: abebemequanent@gmail.com

Abstract: Gram positive rods can be divided in to endospore forming bacteria (bacillus and clostridium spp), non-endospore forming. Non-endospore forming again divided in to regular shape and staining properties (listeria and erysipelothrix) and irregular shape and staining properties (Non Acid fast (corynebacterium and propionibacterium), acid fast (mycobacterium spp) and filamentous branching cell (actinomyces and Nocardia).

[Abebe, M.A. Characteristics, Description and the Morphology of Major gram Positive Bacteria. Life Sci J 2025;22(5):1-6]. ISSN 1097-8135 (print); ISSN 2372-613X (online). http://www.lifesciencesite.com. 01. doi:10.7537/marslsj220525.01

Full Text

1

2

Development of vaccination as a tool in fighting disease has resulted in the potential to combat almost all infectious agents affecting people and animals

Aderaw Desta and Marie Tesahger Tsehay

Animal health department, Banja woreda livestock and fisheries development office, Injibara, Ethiopia

Email: teshagermarie@gmail.com

ABSTRACT: Development of vaccination as a tool in fighting disease has resulted in the potential to combat almost all infectious agents affecting people and animals. The ultimate objective of vaccination is to induce an immune response that subsequently recognizes the infectious agent and fights off the disease. Recombinant DNA technology is any technological application that uses biological systems, living organisms’ derivatives to make or modify products or processes for specific use. Using recombinant DNA technology scientists are working vaccines. Recombinant DNA technology has indeed made tremendous breakthrough in the discovery of various vaccines. The new generation vaccines prepared from the viral or microbial proteins, their fragments or nucleic acid sequences have been attractive because of their stability, non-infectious nature, homogeneity as well as their cost effectiveness. This paper provides a brief historical overview of vaccine development and describes three basic categories of newer, recombinant vaccines: live genetically modified organisms, recombinant inactivated (killed) vaccines and genetic vaccines.

[Aderaw Desta and Marie Tesahger Tsehay. Development of vaccination as a tool in fighting disease has resulted in the potential to combat almost all infectious agents affecting people and animals. Life Sci J 2025;22(5):7-16]. ISSN 1097-8135 (print); ISSN 2372-613X (online). http://www.lifesciencesite.com. 02. doi:10.7537/marslsj220525.02

Full Text

2

3

Review on the principle of General Veterinary Microbiology

Abebe Mequanent

University of Gondar College of Veterinary Medicine and Animal Science, Department of Veterinary Clinical Medicine, Gondar, Ethiopia, P.O. Box: 196.

E-mail: abebemequanent@gmail.com

Summary: Microbiology is the study of microscopic size of bacteria, fungi and virus but not parasite. Bacteria generally can be gram positive or gram positive bacteria this done via the procedure gram stain laboratory technique. Bacteria are prokaryotes that are no true nuclear membrane. Gram positive bacteria retain blue color and gram negative bacteria retain pink or red color in laboratory measurement. Prokaryotic cell have circular DNA, one chromosome, reproduce by mitotic/binary fission, whereas eukaryotic cell have linear DNA, more than one chromosome.

[Abebe, M.A. Review on the principle of General Veterinary Microbiology. Life Sci J 2025;22(5):17-21]. ISSN 1097-8135 (print); ISSN 2372-613X (online). http://www.lifesciencesite.com. 03. doi:10.7537/marslsj220525.03

Key words: Microbiology; principle; veterinary

Full Text

3

4

Early Growth Response of Khaya senegalensis Seedlings to Fertilizer Types and Seed Sources in the Sudan Savanna of Nigeria

Dawaki, S. A.; Mukhtar, M. and Aminu, H.

Department of Forestry Technology, Audu Bako College of Agriculture, Dambatta, Kano State, Nigeria

ABSTRACT: Khaya senegalensis (Desr.) is a hardwood tree species from the Meliaceae family. The species is an economically important tree species used for different purposes in Africa. The high demand for this species has led to excessive exploitation, thus threatening sustainability in the natural forest. The production capacity is low and does not meet the ever-growing human-use demand. Also, tropical soils are deficient in nitrogen and phosphorus nutrients, and the uptake of these limited quantities of nutrients by plant roots from litter is difficult, thus reducing seedlings' growth. A Completely Randomized Design experiment was used to evaluates the effects of seed source (forest area and urban forest) and fertilizer types (poultry manure, cow dung manure, and NPK 10:10:10) on the early growth rate of K. senegalensis seedlings in forestry nursery located in Kano State, the Sudan savanna area of Nigeria, aiming to identify the most suitable fertilizer option. The results show that seed source and fertilizer type exert considerable influence on the early performance of K. senegalensis seedlings. Seeds from forest areas showed superior germination, moisture retention, and biomass accumulation, while seedlings from urban forests demonstrated larger leaf areas and greater height under optimal treatments. Organic manure (poultry manure and cow dung) consistently outperformed inorganic fertilizers in promoting growth. It is recommended that K. senegalensis seedlings intended for afforestation or reforestation in semi-arid areas of Nigeria should be propagated using seeds sourced from natural forest areas and grown with organic fertilizers (poultry manure or cow dung) to enhance germination success and promote vigorous early growth.

[Dawaki, S. A.; Mukhtar, M. and Aminu, H. Early Growth Response of Khaya senegalensis Seedlings to Fertilizer Types and Seed Sources in the Sudan Savanna of Nigeria. Life Sci J 2025;22(5):22-30]. ISSN 1097-8135 (print); ISSN 2372-613X (online). http://www.lifesciencesite.com. 04. doi:10.7537/marslsj220525.04

Full Text

4