Pusat Pengajian Sains Kajihayat - Tesis

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    Genomic And Physiological Characterisation Of Selected Arctic, Temperate And Tropical Pseudanabaena Strains
    (2019-05)
    Khan, Zoya
    Three filamentous cyanobacteria strains obtained from the High Arctic Svalbard archipelago, temperate (England) and tropical (Malaysia) regions were characterized using combined phenotypic and genetic approaches. Morphological and ultrastructural observations were performed together with growth measurements. Cell dimensions, thylakoid arrangement and apical cell shape of the Arctic and temperate strains were consistent with the description of Pseudanabaena catenata while the tropical strain was identified as Pseudanabaena amphigranulata. 16S rRNA gene analysis showed that the Arctic strain USMAC16 and temperate strain NIVA-CYA146 shared high sequence similarity (100% and 98%, respectively) with P. catenata SAG 1464-1. The tropical strain USMAC18 shared only 94% sequence similarity with Pseudanabaena sp. PCC 6802, suggesting that the strain is distinctly different from the strains currently available in the databases. All three strains showed identical internal transcribed spacer (ITS) configuration with other strains of Pseudanabaena.
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    Effects Of Papaya Leaves In Combination With Medicinal Herbs And Probiotic As Functional Feed Additives On Growth Performances And Health Of Hybrid Tilapia (Oreochromis niloticus × O. mossambicus)
    (2025-08)
    Onas, Somdare Peace
    The present investigation was conducted to evaluate the effect of papaya leaves in combination with medicinal herbs and probiotic as functional feed additives on growth performances, activities of digestive enzymes, intestinal morphology, and haemato-biochemical parameters of hybrid tilapia.
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    Pemilihan Dan Pembiakan Asparagus (Asparagus Officinalis L.) Var. Mary Washington Melalui Kaedah Kultur Tisu
    (1997-04)
    Othman, Mohamad Suhaimi
    Seks tanaman asparagus tidak dapat ditentukan melalui morfologi biji benih. Biji benih yang berlainan saiz mengeluarkan satu atau lebih tiler tetapi ini tidak menunjukkan potensi pengeluaran hasil yang sebenar. Oleh yang demikian ciri-ciri pemilihan klon yang unggul tidak bergantung kepada saiz atau bilangan tiler yang dikeluarkan oleh biji benih. Walaubagaimanapun setiap biji benih mempunyai potensi pengeluaran hasil yang berbeza antara satu sama lain. Oleh itu pemilihan berdasarkan setiap biji benih perlu dilakukan.
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    Kelakuan Makan Semut 'Pharaoh', Monomorium Pharaonis (L.) (Hymenoptera : Formicidae) : Pengrekrutan, Pemilihan Dan Pengagihan Makanan
    (1997-06)
    Chong, Shu Chien @ Alexander
    Kajian ini telah bertumpu kepada beberapa aspek perlakuan pemakanan semut 'pharaoh', monomoriuni pharaonis (l.), iaitu pengrekrut.An massa, pemilihan makanan dan pengagihan makanan antara ahli koloni. Semasa pengrekrutan, pekerja semut 'pharaoh' berperanan sebagai pengakap kembali ke sarang dan menarik pekerja ke sumber makanan yang baru dijumpai. Keputusan eksperimen menunjukkan bahawa proses pengrekrutan. Pekerja adalah proses dinamik yang boleh berubah mengikut keadaan seperti kualiti (kekayaan) umpan dan juga tahap kelaparan koloni. Dalam kehadiran umpan berkualiti tinggi, lebih banyak pekerja direkrut untuk memakan berbanding dengan umpan kurang berkualiti. Pengrekrutan adalah tertinggi apabila koloni mengalami kelaparan yang lama diberikan umpan paling berkualiti.
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    Analysis Of Microbial Community Diversity In The Regurgitated Pellets Of Barn Owls (Tyto Javanica Javanica)
    (2025-08)
    Ahmad Kamal, Mohd Hasif
    The diversity of microbe associated with captive and wild tropical barn owl is indeed diverse in general. Given that owls can harbour both beneficial and harmful microbes, understanding their microbial diversity is crucial for identifying the potential of infectious diseases spreading either to human, plants and crops. The aim of this study is to determine the diversity and abundance of microbial communities associated with captive and wild barn owls, investigate the effects of dietary components and geographical locations of the owl on these microbial populations, and discover key microbial species through the owl. All fresh regurgitated pellets were retrieved from each owl from their own site which are Aviari USM, Bumbung Lima and Jengka.