Journal of Zoological Research

Abstract: This study compared the pre-sacral intervertebral joints of the American alligator (Alligator mississippiensis) with those from specimensof Varanus. These two taxa were chosen because they have similarnumber of pre-sacral vertebrae and similar body weights; however,Varanus can move bipedally and has diarthrotic intervertebral joints,whereas Alligator has intervertebral discs and cannot move bipedally.This study consisted of three... More

Abstract: Objectives of this study were to: identify the relationship between vegetation higheit and birds’ species at various wetlands of Sinnar State;This study was conducted in Sinnar state, central Sudan (Latitudes 05º -12º to 05º -14º N and longitudes 32.9º - 35.4º E), covering 12 wetlands(mayas) during the wet and the dry season duration 2011 -... More

Abstract: This study was conducted to investigate the effect of different dosesinjection of human chorionic gonadotropin (HCG) hormone on fecundityand serum sex hormones (FSH, LH, estrogen (E2), progesterone (P4),testosterone (T)) of African catfish (Clarias gariepinus). African catfishspawners were intermuscularly injected with different doses of HCG(500, 1500, 3000, 6000 IU/kg female), and group is not injected as... More

Abstract: Soil Transmitted Helminthes (STH) is always a problem in developingand under developed countries. Children are mostly prone to STH intropical and non-tropical countries including Pakistan. We have observed ova of Ascaris and some non-descriptive objects in the parasitological examination of the fecal material of infant collected from diaper.... More

Abstract: A total of 30 specimens of Skittering frog (Euphlyctis cyanophlyctis),(Anura: Dicroglossidae) were captured from seven selected localities inthe Dir Lower, Khyber Pakhtunkhwa province of Pakistan from Aprilto August 2016. They were euthanized with the help of Chloroform(CHcl3) solution. The biometry of each specimen was measured, thendissected to examine for helminth parasites and foodstuff. All helminths... More

Abstract: The main animal protein ingredient in fish diets is most often fishmealbecause of its nutritional quality. However, the limited availabilityand increasingly cost of fishmeal has lead to investigations of eitherlowering or replacing the fishmeal content with more economic proteinsources of animal and/or plant origin. The research for appropriate andcheap cost alternative sources of protein to... More

Abstract: In 2016, I published a bird song key to the Pipeline Road area in and adjacent to Soberanía National Park, Panama [1]. This key is, to my knowledge, the largest bird song key in the world. Since the key was published, Rufous-breasted Wren (Pheugopedius rutilus; Figure 1) and Rufous-and-white Wren (Thryophilus rufalbus; Figure 2) have moved into the area.... More