Asian Journal of Research in Zoology

Assessing the Role of Mineral Oils in Altering Reproductive Dynamics and Development of Myzus persicae (Sulzer)

Akanksha Sharma & Neelam Kumari · Asian Journal of Research in Zoology · 2026

This research examines how varying concentrations of four mineral oils—Servo, Orchol, Agrospel, and Arbofine—affect the reproductive traits and developmental timing of the green peach aphid, Myzus persicae. Adult parthenogenetic aphids were exposed to leaves treated with these oi...

Open access Research Article 10.9734/ajriz/2026/v9i1248

Effects of Thyme and Garlic Powder on the Reproductive Performance and Pre-weaning Growth in Guinea Pigs (Cavia porcellus)

Fogang Mathieu Duclos, Djoumessi Tobou France Gina, Noumbissi Marie Noël Bertine, Amidou Kpoumie Nsangou, Babit Gilbert Fontcham, Mouchili Mama, Tsafack Fondjeu Ulrich Darling, Tatang Martin vidail, Miégoué Emilé, Tendonkeng Fernand & Pamo Tedonkeng Etienne · Asian Journal of Research in Zoology · 2026

Background: In Africa, poverty and malnutrition are prevalent, particularly in rural areas, where limited access to resources hinders intensive animal protein production, making mini-farming and caviaculture crucial for food security. Guinea pigs, with their high growth rate and...

Open access Research Article 10.9734/ajriz/2026/v9i1244

Analysis of Codon Usage Bias and Nucleotide Composition of Mitochondrial Genomes of the Tuatara (Sphenodon punctatus)

Joydeep Chandra Das, Durbba Nath & Supriyo Chakraborty · Asian Journal of Research in Zoology · 2026

The concept of codon usage bias (CUB) occurs when certain codons are utilized more repeatedly than the other synonymous codons for an amino acid. The investigation of CUB aids in the understanding of optimal codons, gene expression, protein production and trends of evolution. Tua...

Open access Research Article 10.9734/ajriz/2026/v9i1245

Exposure to Bisphenol A (BPA) and Its Possible Health Risks

Padmaja Kumari & Ashok Kumar Thakur · Asian Journal of Research in Zoology · 2026

Bisphenol A (BPA) is a chemical compound that is utilized in the manufacturing of epoxy resins and polycarbonate plastics including food cans, baby bottles, dental sealants, toys, water pipes, & thermal papers. Its widespread application resulted in its elevated exposure to a...

Open access Research Article 10.9734/ajriz/2026/v9i1246

Physicochemical Water Quality and Heavy Metal Pollution along the Maniyari River, Chhattisgarh, India

Suresh Kumar Patel, Santosh Kumar Agrawal & Arun Kumar Kashyap · Asian Journal of Research in Zoology · 2026

This study investigates the physicochemical characteristics and heavy metal contamination of the Maniyari River in the Takhatpur region of Chhattisgarh, with the objective of assessing the extent of anthropogenic influence and ecological risk. Water samples were collected from th...

Open access Research Article 10.9734/ajriz/2026/v9i1247

Progressive Greying in Common Coots (Fulica atra): A New Records from Rajasthan Wetlands, India

Vivek Sharma, Chetan Kumar Tak, Gaurav Panwar, Aayushi Meena, Muskan Singh, Saba Khan & Ruby Malik · Asian Journal of Research in Zoology · 2026

Colour aberrations are well documented in many wild birds, but less synthesized for waterfowl. Leucism (partial or total) is a hereditary condition that alters the generation of pigments (eumelanin and/or phae-omelanin) in feathers due to a lack of pigment-producing cells in the...

Open access Research Article 10.9734/ajriz/2026/v9i1242

Comparative Heavy Metal Bioaccumulation and Human Health Risk Assessment of Farmed and River-caught Catfish in Rivers State, Nigeria

Ohaturuonye Sampson O., Ekwere Ifiok O., Ekesiobi Sandra U., Robinson Bright E., Okpoji Awajiiroijana U., Osuagwu Eze L. & Okpanachi Clifford B. · Asian Journal of Research in Zoology · 2026

Heavy metal contamination of aquatic environments poses significant ecological and public health concerns in the Niger Delta, where fish constitute a major source of animal protein. This study assessed and compared the concentrations of ten heavy metals in farmed catfish from fiv...

Open access Research Article 10.9734/ajriz/2026/v9i1243

Changes in Susceptibility of the Aphid, Myzus persicae and the Predator, Chrysoperla carnea to Some Insecticides on Sugar Beet Plants

Halawa. Samah. F, Abd El-Salam A. Farag, Ahmed. M. Shehab & Alaa. M. Khorchid · Asian Journal of Research in Zoology · 2026

Aphid infestations represent a major threat to sugar beet production in Egypt, necessitating effective and sustainable control strategies. This two-year field study [Insecticide applications on September 19th (2024) and September 22nd (2025)] to evaluated the efficacy of some ins...

Open access Research Article 10.9734/ajriz/2026/v9i1241

Histopathology of Papillomavirus Lesion in Carp (Cyprinus carpio)

Luana Bortolini Giesta, Diego Leandro Oliveira Silva, Luiz Cesar Hoefling, Virgínia Fonseca Pedrosa & Luis Alberto Romano · Asian Journal of Research in Zoology · 2026

Papillomavirus (PV) is a small circular double-stranded DNA virus of the Papillomaviridae family, widely distributed among vertebrates and characterized by high tropism for keratinized and mucosal epithelia. This study performed a histopathological evaluation of a cutaneous lesio...

Open access Research Article 10.9734/ajriz/2026/v9i1240

Assessment of Heavy Metal Contamination and its Associated Human Health Risks in the Nun River, Bayelsa State, Nigeria

Izuchukwu Emeka C., John Ebikienmo P., Ekesiobi Sandra U., Thompson Nwinam I., Okpoji Awajiiroijana U. & Etesin Monday U. · Asian Journal of Research in Zoology · 2026

Surface waters in the Niger Delta remain critical sources of domestic water supply but are increasingly degraded by anthropogenic contamination. This study assessed heavy-metal contamination in the Nun River, Bayelsa State, Nigeria, and evaluated associated human health risks. Su...

Open access Research Article 10.9734/ajriz/2026/v9i1239