Open Access Original Research Article

Repellency Effect of Prepared Neem Tree Leaves Smoke against Mosquito

M. M. Jibrin, A. D. Mohammed

Asian Journal of Research in Zoology, Page 1-6
DOI: 10.9734/ajriz/2020/v3i330090

The study was design to evaluate the smoke repellency effect of prepared neem leaves, against mosquito. The dried neem powder was used for making the insecticide, 10 g of powdered leaves sample was weight into a 200 ml beaker, and 5.0 g of starch was weight and added to the leave sample in the beaker. The mixture was stirred and 5.0 ml of distilled water was added gradually to the mixture in little quantity while stirring. The beaker with wet insecticide mixture was dried in an oven until a constant weight was obtained. The prepared neem insecticide was distributed among the households to use at night, to substitute synthetic insecticides. The users were randomly selected within the study area. The data was collected based on the time of application, number of bites receive before and after the application this was done based on 0-5 rating scale. The result revealed that the prepared insecticide is 100% effective though the effectiveness is dependent to time taken after application. The questionnaire was also used to assess the view of the users on the adverse effect they experienced upon the exposure to neem tree leaves prepared sample. The study has been concluded that neem leaves smoke is effective in repelling mosquito, and it can be an alternative to the synthetic insecticides hence it is safe for the users and the environment.

Open Access Original Research Article

Food and Feeding Ecology of Double-spurred Francolin (Pternitis bicalcaratus Linn.) in Ekiti State, Nigeria

O. C. Owolabi, A. I. Akinpelu

Asian Journal of Research in Zoology, Page 7-14
DOI: 10.9734/ajriz/2020/v3i330091

Double-spurred francolin (Pternitis bicalcaratus) is a bird with wide range of economic importance. In spite of this, there has been no previous studies on food and feeding ecology of the species in Ekiti State, Nigeria. 150 (male 69, female 81) bird specimens were collected through hunters, the crop and gizzard contents were sorted. Thirty food species having plants and animal origins were recovered. Plant and animal matters constituted 93.22% and 6.2% respectively. Mann Whitney U- test showed that there was no significant difference in the consumption of plant matters among sexes (p> 0.05) but a significant difference in the consumption of animal matters among sexes (p< 0.05).

Open Access Original Research Article

The Prevalence of Ticks Infestation of Dogs in Runjin Sambo Area of Sokoto, Sokoto State, Nigeria

S. Y. Lema, A. Haruna, J. Ibrahim, J. Suleiman

Asian Journal of Research in Zoology, Page 15-20
DOI: 10.9734/ajriz/2020/v3i330092

Ticks are still considered a major cause of zoonotic diseases most especially to dogs and other related animals. This study was conducted to assess the ticks infestation of dogs in Runjin Sambo area Sokoto. The sample was collected using hand picking and hair brushing method with the assistance of dog owners. A total of sixty dogs were randomly selected in four different sub areas in Runjin Sambo. The locality, sex and age of the dogs were noted. The ticks species were identified in the entomology laboratory using key devices. Four species of ticks namely, Amlyomma variegatum, Rhipicephalus pulchellus, Boophilus decolaratus and Hyalomma excavatum were identified. The 45 (75%) of dogs were found infected with prevalence of 11.67%, 21.67%, 25.00% and 16.67% in the four sub-areas respectively. The prevalence rate of infection was 31.67% in male dogs and 43.33% in female dogs. Similarly 55.00% and 20.00% in adult and puppy dogs respectively.  Tick infestation of dogs seems to be due to poor and unhygienic condition of the dogs and can be reduced by proper sanitation, improve hygiene and health education.

Open Access Original Research Article

Study of Some Biological Aspects of the Nile Carp, Labeo niloticus (Pisces, Cyprinidae) from Khashm El-Girba Reservoir and Atbara River, Sudan: I Abundance; Sex Ratio; Gonado-somatic Index and Breeding Season

Mutasim Yousif Mohamed Abdalla, Abuelgasim Ibrahim Abdelhalim, Ahmed El Bedawi Adam

Asian Journal of Research in Zoology, Page 21-28
DOI: 10.9734/ajriz/2020/v3i330093

The aim of this study is to investigate some biological aspects of the Nile carp, Labeo niloticus, in Khashm El-Girba reservoir and Atbara River, Sudan. The study was conducted during December 2015 to November 2016. Samples were collected bi-monthly from three localities, namely; Um Aswad (Atbara River), El-Remila and El-Monaba (Khashm El-Girba reservoir), using beach seine nets of 1.2 cm 4.0 cm and 7.0 cm stretched mesh. A total number of 1,190 specimens of L. niloticus were collected from the three sampling sites. Two peaks of abundance were observed for L. niloticus at all sampling sites (February- March and September- October). Sex ratio was 1:1, except in downstream areas, where females were more dominant than males. Gonado-somatic index showed one peak of increase, and ranged from 1.28 - 1.79 and 0.50 – 1.701 for females and males respectively, indicating one spawning season.

Open Access Original Research Article

Lymphocystic Disease in Wild Croaker (Micropogonias furnieri) and Flounder (Paralichthys orbignyanus)

V. F. Pedrosa, M. C. Klosterhoff, A. F. F. de Medeiros, C. A. Paz-Villarraga, L. A. Romano

Asian Journal of Research in Zoology, Page 29-36
DOI: 10.9734/ajriz/2020/v3i330094

Lymphocystis disease has been reported worldwide in several species of freshwater fish and marine fish, naturally infected in the wild environment, or in intensive crops in farms. Nodular warty lesions of irregular surface were observed in the tegument and fins and mouth in a species of croaker (Micropogonias furnieri) caught in Cassino beach Rio Grande RS, Brazil and flounder (Paralichthys orbignyanus) caught in the city of San Clemente, Argentina. The skin lesions fragments were fixed in 20% buffered formalin, and the histological sections were stained with hematoxylin and eosin and Periodic Acid-Schiff (PAS), where microscopic alterations were visualized in the form of hyaline capsule with small basophilic structures in nodules and fibroblastic cells proliferation. The reported cases were based on the disease macroscopic findings characteristic of a lymphocystis disease, along with the histopathology, which confirmed the presence of the disease in the analyzed tissues.