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Project Material on ROWTH PERFORMANCE AND BLOOD PARAMETERS OF CLARIAS GARIPENUS FED GRADED LEVEL OF MELON SHELL AS REPLACEMENT FOR MAIZE


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FISHERY & AQUACULTURE PROJECT TOPICS AND MATERIALS

Project Material on ROWTH PERFORMANCE AND BLOOD PARAMETERS OF CLARIAS GARIPENUS FED GRADED LEVEL OF MELON SHELL AS REPLACEMENT FOR MAIZE

ROWTH PERFORMANCE AND BLOOD PARAMETERS OF CLARIAS GARIPENUS FED GRADED LEVEL OF MELON SHELL AS REPLACEMENT FOR MAIZE ABSTRACT In this research work the important of appropriate institutional arrangements for the development of in-land fisheries enhancement strategies in Anambra state is emhasined . Chapter one contains a general discussion based on the general trend of fish production in most intend water bodies in Nigeria and high lighted some factors which where though to be responsible for the drastic decline . furthermore this chapter highlighted the activities of some of various institutional that are responsible for coordinating the activities of in-land water bodies in Nigeria can the view of some individual contributor. It went further to state the problem and limitation of the study and finally the definition of terms. In addition a number of case studies of traditional fisheries management techniques operated at the village level example construction if fish shelters in seasonal pools as well as some other related materials are outlined and reviewed in chapter two as part of literature review. Chapter three deal of literature review the method used in collecting data of the study the way the questionnaire were constructed distributed and the treatment of data. Chapter four deal with data presentation and analysis. This paper finished in chapter five with an identification of the opportunities and constraints for future fisheries enhancement strategies in Nigeria. It also contains the conclusion drawn from all the analysis and findings of the research work can the recommendation made. CHAPTER ONE INTRODUCTION 1.1 BACKGROUND TO THE STUDY In recent years there has been a growing concern that the fisheries in most water bodies in Nigeria a have been increasingly over exploited leading to reduction in socio- economic benefits far local communities and they regional economy in general. It has been estimated that most of the world’s major inland fisheries are now at their maximum level of exploitation (FAO1995) for example before now the formal East central state now consist of (Anambra Imo Enugu and Abuja) were know for their richness in terms of natural resources particularly in the area of fish production. For instance during 1980’s about 40% of the total fish supplied in Nigeria were produced form these region. But as time goes on there become a drastic decline in fish production from these region. This became a matter of specially concern to the people of these region. However it is on record that recently specifically in March 2005 that president Obasanjo in his official visit to Delta State was asked why the present government is hesitating in signing into law a bill that would pave way for the draining of River Niger in the region in order to allow for confluence of Rivers so as to increased fish spawning. His answer was” there are more it takes to attaining full production in fisheries production than only to draining Rivers” Meanwhile, combinations of factors were though to be responsible. Firstly environmental changes caused by drought and dam construction has resulted on lower fish production. Secondly an intensification of fishing effort has been brought about increased communalization the introduction of modern gears restriction (such as gears net mesh net etc) which are used in capturing fish. Furthermore welcome and Barthey discovered that catches from in-land fisheries are Indic line state due to deteriorating quality of aquatic environment and poor management. Similarly Nigeria and Biosphere (an association responsible for the studying of intercalation ship between man and living organism) in 1990 organized an educative seminar on Nigerian water bodies which in broad sense includes flood plain lake reservoir and swamp Despite all these protective effort capture fisheries remains highly vulnerable to over exploitation and degradation. It follows therefore that if fisheries enhancement are to be successful the problems of overexploitations and degradation must be address in parallel from the out-set. In response to the need for better understanding of in-land fisheries management and to investigate the possibilities for designing a more effective approach to fisheries management the researcher takes Osimiri Dudu flood pond in Anambra State as a case study. A particular focus of the project is to investigate whether traditional management system which were perceive to be successful and well adopted to local condition could be use as a basis for community based approach to fisheries management in the future in in-land fisheries management. 1.2 STATEMENT OF PROBLEM There have been a concerted effort by Anambra State River basin authority (ASEBA) and some organized private sector individuals to improve productivity of fish in here various water bodies recently for instance federal government and state government recently conducted a research work which was assisted by food and agriculture organizaiton (FAO) to find out the rate at which fishes propagate in in-land water bodies in Nigeria Similarly there have been also series of seminars and work-shop geared towards educating fishermen for the need for the conservation of Nigerian water bodies. Inspite of all these effort most water bodies in Nigeria are still in declining trend. This left the researcher with no other option than only to ponder: what really are the cause of the low productivity? Is it possible that an accurate assessment of the status of these in in-land fisheries have not been conducted? Or could it be a lack of detailed information to the stake- holders? Or is the management techniques in use are not suitable? These are what the researcher want to find out in this research work and suggest a possible solutions to the problems. The challenge to this research work is to therefore to find some management system that would best support fisheries management in the state in finding and implanting its approach by specifying institutional arrangement that would prevent degradation and over exploitation occurring in the first place rather than trying to find way to repair the damages ones it has occurred. Such strategy make clear economic sense. It is also ecologically desirable in line with precautionary principle in that there is no guarantee that renewable natural resources degradation is reversible. 1.3 OBJECTIVE OF THE STUDY From all that has been written it is the objective of this study: 1. To find out why productivity in most in-land water bodies in Nigeria especially that of Osimiri Dude is very low 2. To find a means of minimizing over- exploitation in Nigeria water bodies 3. To determine the cause of the deteriorating quality of aquatic environment in Nigeria. 4. To degraded status of our water bodies. 1.4 RESEARCH QUESTIONS As a guide to finding solution to the research problem the research posed the following research questions. 1. What are the effect of using toxic substance in fishing activities? 2. Does environment changes have any impact on in-land fisheries management? 3. What type of management system does local fishermen proffered most? 4. How does drought and dam construction effect fish stocking? 5. What time of the year does over concentration of fishermen occurs in water bodies? 6. Is there any policy or programme regulating fishing activities? 7. Why does over-exploitation occur in Nigerian fishery industries? 1.5 HYPOTHESIS FORMULAITON The following hypothesis forms the frame work for carrying out the study. H0: Using toxic substance during fishing does not effect fish propagation H1: Using toxic substance during fishing effect fish propagation H0: Traditional management of system is not the best and general acceptable management system in local community in fisheries management H1: Traditional management of system is the best and general acceptable management system in local community in fisheries management 1.6 SIGNIFICANCE OF THE STUDY It should be recognized that the fundamental issue as regards to fisheries management in most cases is the allocation of scarce (natural) resource to alternate ends. For example in the case of water bodies which contains major in-land fisheries as population pressure and other stress increase the natural resources become increasingly scare and become valuable. However because in many cases invitational management do not exist (or inadequate ) for the allocation of resource free and open access to increasingly valuable resources result inevitably in the degradation. As a result of this, this study become very important especially today that all hands are on deck to develop Nigerian economy. this study will be of immense benefit to both public sector organization and organized private sector in the fishery industries in addition the study will determine the factor limiting fish production in this sector of economy (fishing industries). It is expected that the findings will help to rediscover the past abundant fish production in in-land water bodies in Nigeria. 1.7 SCOPE OF THE STUDY The scope of this study is very wide if it has to be carried out in all inland fisheries resource of Nigeria. The study is limited based on the fact that there is no tome and material resources to see to the whole nation

GROWTH PERFORMANCE AND BLOOD PARAMETERS OF CLARIAS GARIPENUS FED GRADED LEVEL OF MELON SHELL AS REPLACEMENT FOR MAIZE

 

CHAPTER ONE

INTRODUCTION

1.1.  Background of the Study

Fish is the primary source of protein for about 950 million people worldwide and represents an important part of the diet of many people, provide about 10% of the animal protein consumed by humans and is a valuable source of minerals and essential fatty acids (Food and Agriculture Organization, 1997). The production of fish for direct human consumption doubled between 1950 and 1970 and has stabilized since then at an average of 9.0kg to 10kg of fish per capita (FAO, 2003). The implication is that Fish consumption per person is on the increase and supply will probably be limited by factors like high cost of feed materials (Obi, Kolo and Oriere 2011). Currently there is a global increase in consumption of food fish will take place largely in the developing countries, where population is growing and higher incomes are allowing purchase of high value fisheries products. However, fish production in the developing nations where fish protein is needed to prevent malnutrition is a key element for food security. A critical area where innovative programmes are needed to increase production is in feed production (FAO, 1997).

Production of fish in homestead fish ponds have been adopted by families as a means of improving family protein intake and income (Eyo, 1995). Yet availability of high quality fish feed is one of the greatest problems that is affecting the expansion of the small scale fish industry in Nigeria. Local production of high quality fish feed using local ingredients has to be encouraged especially extruded (floating) feed to replace the present dependence on imported ones. Floating feed is very suitable for pelagic or surface feeders in the sense that the fish quickly access the feed and do not expend much energy in going to the bottom to source for food ( Orire and Ricketts., 2013). The actual machine for producing floating feed known as extruders (insta PRO 2000) is very expensive and cannot be afforded by our local farmers. Nigeria therefore is a permanent buyer of expanded floating feed at high cost from United State of America and other Western and Asian countries (Falaye, 2009). The Nigerian economic policy should not support such outrageous wastage of our scarce foreign exchange. It is therefore imperative that emphasis should be geared towards the technology of developing floating fish feeds using local non-conventional feed ingredients which are cheap, affordable and do not compromise the quality of compounded diets.

Floating feed is a management tool that farmers can use to observe how much and how actively the fish feed. Physically seeing the fish is almost a necessity before the ponds are harvested and restocked periodically without draining and the farmer have precise knowledge about the mass of fish in the pond ( Falayi, Balogun, Adeboye., 2004). Mellon (Collocynthis citrulus L.) is a widely cultivated and consumed oil seed crop in West Africa. Melon is a cucurbit crop that belongs to the Cucurbitaceae family with fibrous and shallow root system. It is a tendril climber or crawling annual crop mostly grown as a subsidiary crop intercropped with early maize and yam in the savannah belt of Nigeria. (Abiodun and Adeleke, 2010). They are consumed in “egusi soup”, melon ball snacks and ogiri (fermented condiment) (Odunfa, 1981). Eugene and Gloria, (2002) in their study concluded that melon seed contains 50% and 30% oil and protein, respectively. Melon seed contains a fairly high amount of unsaturated fatty acid, and linoleic acid suggesting a possible hypocholesterolic effect of lowering blood cholesterol ( Obi, Kolo and Orire., 2011). The oil extracted from the seed is for edible purpose (Ajibola et al.1990). The shell of melon is usually considered an agricultural waste. The shell is light brown in colour and light in weight like flakes hence usually floats when scattered in water. Obi, Kolo and Oriere (2011) have reported that melon shell contains crude protain value of as high as 13.83%. However, large quantities of the melon shell are discarded and burnt, which pollute the environment yet the fish industry is threatened with acute shortage of conventional feed ingredients leading to low productivity. It may be possible to utilize melon shell as non-conventional source of fish feed ingredient for aquaculture. However, there is little or no Information on the nutritional composition of melon shell and its potential as a feed ingredient for Clarias gariepinus.

1.2      JUSTIFICATION OF THE STUDY

Feed is a critical factor in fish production because it accounts for 50-60% of the total cost of production (Ogunlade 2007). Feed used by fish farmers to ensure good yield are the extruded feed which are capable of floating in water. These feed are expensive and can’t be afforded by all fish farmers. To reduce cost of production, farmers therefore resort to formulating their own feed. These feed produced locally do not float. Their use, result in water pollution which compromise productivity. This study therefore is being conducted to compound feed that can float, and determine its acceptability to fish using melon shell (unconventional feed ingredient) which is cheap, thereby reducing cost of production and ensure sustainable production at a high level. 

1.3 AIMS AND OBJECTIVE

General aim is to compound a feed that float using melon shell as floating device.

1.3.1   Objectives

The objectives of this Study are to determine the

. Potential of melon shell as feed ingredient to aid floatation.

. Optimum replacement level of maize with melon shell as energy source that will give the best growth, and survival, in Clarias gariepinus fingerlings

. Nutrient utilization in Clarias gariepinus fingerlings.

. Heamatological profile of Clarias garipenus fed the experimental diets.

. Carcass quality of Clarias garipenus fed the experimental diets.


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