International Journal of Animal Research


Effects of Different Environmental Factors and Hydrological Conditions on Fish Reproduction

Review Article of International Journal of Animal Research Effects of Different Environmental Factors and Hydrological Conditions on Fish Reproduction Baogang Song1*, Xinxin Li1, Hongcheng Jiu1, Chengming Yang1 1College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, 443002, China. Reproduction is an important life activity of fish. At the current stage, due to changes in the environment and the impact of human activities, the reproduction of fish has been greatly affected. If its reproduction performance is severely damaged, it means that it will Unable to reproduce, its number will continue to decrease, or even die. Therefore, the study of fish reproduction is not only conducive to protecting species diversity, maintaining the stability of fish populations, but also maintaining the balance of the aquatic ecosystem. This article focuses on the effects of environmental factors such as light, environmental hormones in water, and hydrological conditions such as flow rate and temperature on fish reproduction. Keywords: Fish reproduction; Environmental hormones; Release of cold water ...

Goat Production and Distribution Pattern in Ibadan/Ibarapa Zone, Oyo State

Research Article of International Journal of Animal Research Goat Production and Distribution Pattern in Ibadan/Ibarapa Zone, Oyo State Adedayo O Sosina, Omosile A Adeoso Department of Animal Science, University of Ibadan The availability, population, and distribution of goat at the system level are of great concern to the livestock policymakers. Most often, policy formulation and implementation on goat production had been faulty without meeting the desired objectives. Little information does exist concerning the distribution of goat production at the system level in the Ibadan/Ibarapa zone of Oyo state. Hence, this study on the mapping of goat production and distribution in the selected area was undertaken. A three-stage sampling technique with 270 sampling population was used. Six Local Government Areas (LGAs) with a high prevalence of crop-livestock production system, three villages per LGA and fifteen respondents per village were purposively selected. Distribution pattern of goat population (Tropical Livestock Unit, TLU) was appraised with spatial analytical tools following standard methods. The Global Positioning System (GPS) was used to locate the population of farmers and appreciate the spatial distribution of goat production among farmers in the study area. A GIS (Geographic Information System) is a computerized database management system for capturing, storing retrieving, manipulating, analyzing and displaying spatial information. Ibarapa East LGA had the highest TLU (37) for Goat when compared with Egbeda, Ido, Ona-ara, Akinyele and Oluyole LGA with TLU of 30, 20, 6, 4 and 2, respectively. The availability of abundant crop residues and feed resources in Ibarapa area coupled with a large expanse of land encouraged goat production activities as observed in Ibarapa East, Egbeda and Ido LGA. The lower TLU observed in Ona-ara, Akinyele and Oluyole LGA can probably be due to the urbanization in those locations which has adversely affected goat production. In conclusion, using the spatial analytical ...

Assessment of Beekeeping Constraints and Opportunities in Diga and Wayu Tuka Districts

Research Article of International Journal of Animal Research Assessment of Beekeeping Constraints and Opportunities in Diga and Wayu Tuka Districts Amsalu Arega Bako Agricultural reaearch center The study was conducted in Diga and Wayu Tuka Districts to determine the constraints and opportunities of beekeeping. Questionnaire surveys was administered to 146 beekeepers (97.1% males). Majority of the respondents started beekeeping after 2010 (28.03%) by catching colonies as honey bee colony source (54.8%). The major dearth period of the area was late march to early may. The trend of beekeeping in the study area was shifting from traditional to modern beekeeping and the trend of honeybee colony and its yield was decreasing due to honeybee health problem of the area (pests, predators, pathogenic disease, high cost of bee equipment and agrochemical application). In the study area the major pests and predators considered as challenges were ants, beetles, wax moth, varroa destructor and some predators like honey badgers, honeybee eater birds, dead head hawks moth, lizards, wasps and birds respectively. For the reason of time restraint in this study area, farther study on the driving force of challenge and opportunity of beekeeping is suggested by monitoring throughout the year. Keywords: Honeybees, opportunity, constraint, Oromia ...

A Study on Bird Diversity and Abundance in a Lowland of the Centre Region of Cameroon (Ekoko II village) confirm High Diversity in the Congo Basin Forest and a Greater Dominance in the Distribution of Species in the Lowlands

Research Article of International Journal of Animal Research A Study on Bird Diversity and Abundance in a Lowland of the Centre Region of Cameroon (Ekoko II village) confirm High Diversity in the Congo Basin Forest and a Greater Dominance in the Distribution of Species in the Lowlands Billy. Nguembock1, 2,*, Hervé. Nkingop Djopmou1, Sali. Mahamat1, Esther Diane Olivia. Azang1 1Laboratory of Zoology, Ornithology Unit, Department of Animal Biology and Physiology, University of Yaounde I, P. O. Box 812 Yaounde, Cameroon; 2Department of biological sciences, University of Montreal, C.P. 6128, succursale of Center of town, Montreal, QC, H3C 3J7, Canada Cameroon is one of the six Congo Basin Forest countries. The Centre region of Cameroon (Central Africa) is a relictual site in which several expeditions by naturalist ornithologists have permitted to describe many new birds’ specimens. Only in recent years, very few bird surveys have been conducted in this area to get an idea about the new or old taxa that make up this region. We conducted a bird survey in a locality of the Centre region of Cameroon, Nsimalen district of Mfou (more precisely in the Ekoko II village) to investigate the avifauna as well as to explore the abundance, diversity and distribution and eventually their reasons. To obtain the abundance of bird species, we used the mist-netting method and captured birds during eleven months. In order to analyse diversity and distribution of this avifauna in their life environment, we performed analyses with SAS/STAT and PAST software. We caught 227 individuals belonging to 24 birds’ families. Compared with previous surveys in this region, we newly recorded one family (Phylloscopidae), one genus (Phylloscopus) and two species: Phylloscopus bonelli and Criniger ndussumensis. In the Ekoko II avifauna, many are sedentary but there is also a great mixture of birds described as seasonal ...

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International Journal of animal research

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