30.11.2012 Views

Download Complete Issue (4740kb) - Academic Journals

Download Complete Issue (4740kb) - Academic Journals

Download Complete Issue (4740kb) - Academic Journals

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Journal of Medicinal Plants Research Vol. 6(27), pp. 4443-4449, 18 July, 2012<br />

Available online at http://www.academicjournals.org/JMPR<br />

DOI: 10.5897/JMPR12.792<br />

ISSN 1996-0875 ©2012 <strong>Academic</strong> <strong>Journals</strong><br />

Full Length Research Paper<br />

Effects of Moringa oleifera methanolic leaf extract on<br />

the morbidity and mortality of chickens experimentally<br />

infected with Newcastle disease virus (Kudu 113) strain<br />

Didacus Chukwuemeka Eze 1 *, Emmanuel Chukwudi Okwor 1 , Okoye John Osita A. 1 , Onah<br />

Denis Nnabuike 2 and Shoyinka S. Vincent Olu 1<br />

1 Department of Veterinary Pathology and Microbiology, University of Nigeria, Nsukka, Enugu State, Nigeria.<br />

2 Department of Veterinary Parasitology and Entomology, University of Nigeria, Nsukka, Enugu State, Nigeria.<br />

Accepted 19 June, 2012<br />

Newcastle Disease (ND) is an important disease of poultry worldwide. Its economic impact is high<br />

because mortality may reach 100% in affected poultry farms. This study was aimed at evaluating the<br />

protective properties of crude methanolic extract of Moringa oleifera in chickens. Forty two-day old<br />

chicks were randomly divided into four groups: I, II, III and IV. Groups I and II were given daily oral<br />

treatment of methanolic extract of M. oleifera at 200 mg/kg body weight until day 56 of age. Groups II<br />

and III at 42 days of age were vaccinated with the La Sota strain of ND vaccine. Group I was not<br />

vaccinated, while IV was left as untreated/unvaccinated control. All the groups were challenged with the<br />

velogenic strain of ND virus on day 56 of age. Feed intake and weight gain were evaluated. Following<br />

challenge, the birds were monitored for clinical signs, morbidity and mortality. Results of feed intake<br />

and weight gain were analysed using the statistical package for social sciences (SPSS). Survival was 0,<br />

32, 88 and 100% in groups IV, I, II and III animals, respectively. Therefore, M. oleifera can protect birds<br />

from ND and can be used prophylactically against ND.<br />

Key words: Velogenic Newcastle disease, chickens, Moringa oleifera, morbidity, mortality.<br />

INTRODUCTION<br />

Newcastle disease (ND) is a serious threat to the<br />

aviculturists and the commercial poultry industry<br />

worldwide. According to the Office International des<br />

Epizooties/World Organization for Animal Health (OIE),<br />

ND belongs to List A Group of diseases which have the<br />

following characteristics: “a transmissible disease that<br />

has the potential for very serious and rapid spread<br />

irrespective of national borders, that is of serious socioeconomic<br />

or public health consequence, and that is of<br />

major importance in the international trade of animals and<br />

animal products (OIE, 2005)”. The economic impact of<br />

ND outbreaks is characterized by high mortality in<br />

commercial flocks, condemnation of other infected flocks<br />

*Corresponding author. E-mail: didacus.eze@unn.edu.ng. Tel:<br />

+2348037292020.<br />

and trade restrictions associated with quarantine and<br />

surveillance of affected areas within individual states<br />

where outbreaks have been detected (Pandey, 1992).<br />

ND virus (NDV) is an Avian Paramyxovirus serotype 1<br />

(APMV-1) that belongs to the genus Avulavirus in the<br />

family Paramyxoviridae (Alexander, 2003). The most<br />

effective means of controlling NDV has been through<br />

vaccination and biosecurity. The most common routes of<br />

inoculation of the vaccine are oral, ocular, and intranasal<br />

(Spradbrow, 1994).<br />

Moringa oleifera is the most widely cultivated species of<br />

a monogeneric family, the Moringaceae that is native to<br />

the sub-Himalayan tracts of India, Pakistan, Bangladesh<br />

and Afghanistan. This rapidly growing tree (also known<br />

as the horseradish tree, drumstick tree, benzolive tree, or<br />

Ben oil tree), was utilized by the ancient Romans, Greeks<br />

and Egyptians. It is now widely cultivated and has<br />

become naturalized in many locations in the tropics. It is

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!