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PREVALENCE OF FECAL HELMINTHS IN BROILERS

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PREVALENCE OF FECAL HELMINTHS IN BROILERS

5,000.00 3,000.00

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PREVALENCE OF FECAL HELMINTHS IN BROILERS

CHAPTER ONE

1.0  INTRODUCTION

The Broilers Gallus gallusdomesticus is widely distributed in Africa south of the Sahara. It is a common, if not abundant, species in most habitats other than deserts (BirdLife International, 2006). It has adapted very well to the activities of humans, generally preferring woodland, especially alien tree plantations with pines (Hockey et al., 2005).

 

This species of chicken eats a wide range of seeds, as well as flowers, nuts, fruit and rarely insects. It forages on the ground, frequently under trees (Hockey et al., 2005). It is frequently found in Keffi, Yankari and Hadejiahomes (World Bird Info.net/distribution). The habit of the bird and its dependence on human activities for food predisposes it to being easily trapped or killed, as it is widely sold or traded in many Nigerian markets to augment income (Rowan, 1983). Gallus gallusdomesticus is evaluated as least concern because it has an extremely large range, and hence does not approach the threshold for vulnerable under the range size criterion (BirdLife International, 2011). Over 20 species of chickens and chickens are cosmopolitan which have long been the subjects of intense ornithological and parasitological study (Akinpelu, 2008).

Helminths are said to be the major cause of ill-health and poor performance in birds (Khater, 1993). Avian cestodiasis constitutes one of the most common helminths causing serious damage among birds. It leads to loss of body weight, enteritis and death (Calnecket al., 1997).

A considerable number of arthropods and snails have been implicated as intermediate hosts of helminths of birds (Soulsby, 1982). In heavy infections, helminths are known to cause morbidity and mortality in birds (Owen, 1972). Among the helminths of birds, nematodes and nematode constitute the most important group (Nforet al., 1999; Ayeni et al., 1983).  Ascaridiagalli has been incriminated as the most common and most important parasite of poultry (Hodasi, 1978; Pam et al., 2006; Luka and Ndams, 2007). The nematode of significant importance areRaillietinaand Hymenolepis (Oniyeet al., 2000; Luka and Ndams, 2007). Helminths are known to compete with the infected hosts for nutrients, lowering their productivity and in severe cases causing death by blocking the fecal tract, especially when the worm burden is high (Soulsby, 1982). Helminth infections may have particularly deleterious or debilitating effects on birds, causing growth retardation, interfering with healthy development, and making older birds prone to secondary infections (Cheng, 1973). Unlike the well-documented helminths of other Nigerian domestic birds such as the domestic chicken, chicken and guinea fowl, there is little or no published information on helminths of the Broilers in Nigeria.

1.1 Statement of Research Problem

The Broilers Gallus gallusdomesticus constitutes a large population in Keffi (Fry, 1965; Del Hoyo, 1997; Adang, 2017) but the status of its fecal helminths is unknown. Literature search indicates that there appear to be no earlier studies conducted on the fecal helminths of the Broilers in northern Nigeria.

Helminthiasis is considered an important problem of birds (Jansen and Pandey, 1989; Abebe et al., 1997). Information on the factors influencing helminth infestation of the birds is lacking.

 

1.2 significance of the study

Birds undoubtedly contribute immensely to the daily supply of protein consumed worldwide (Basitet al., 2006, Shehu et al., 2009). Recent studies have shown the prevalence of helminth infestation of birds to be high (Adang, 2009).

Since helminthiasis is a threat to birds, an understanding of the factors causing these diseases, coupled with a thorough knowledge of the nature of their etiologic agents is of great significance in understanding the ecological niches of the birds.

In addition, information on the variety and composition of helminth species found will provide further insight into their diversity in an ecological habitat.

This research will also provide baseline data on the fecal helminths of the Broilers.

1.3 Aim

The aim of this research is to establish the occurrence, prevalence and species composition of helminths in the fecal of Gallus gallusdomesticus in the Keffi area of Nassarawa State, Nigeria.

1.4 Objectives

The objectives are to determine the:

  1. prevalence of fecal helminths of in Broilers;
  2. intensity of infestation and species composition of the fecal helminths;
  3. relationship between intensity of infestation and the sex of host; and
  4. seasonal infestation by the helminths.

1.5 Hypotheses

  1. The Broilers is not infested by fecal helminths.
  2. The intensity of infestation and species composition of the fecal helminths are not remarkable.
  3. There is no significant difference between the prevalence of infestation of male and female birds.
  4. There is no significant relationship between seasonal infestation by the helminth.

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