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Journal of Veterinary Advances<br />

Survey of Tick Infestation in Cattle in Zaria Abattoir,<br />

Nigeria<br />

Obadiah H. I. and Shekaro A<br />

J Vet Adv 2012, 2(2): 81-87<br />

Online version is available on: www.grjournals.com


ISSN: 2251-7685<br />

Abstract<br />

81 J. Vet. Adv., 2012, 2(2):81-87<br />

OBADIAH AND SHEKARO<br />

Survey of Tick Infestation in Cattle in Zaria<br />

Abattoir, Nigeria<br />

*1 Obadiah H. I. and 2 Shekaro A<br />

1 Department of Biological Sciences, Faculty of Science, Ahmadu Bello University, Zaria, Kaduna State<br />

2 National Veterinary Research Institute, Vom, Jos, Plateau State, Nigeria<br />

Nigeria has a high herd of cattle population, majority of which are in the hands of pastoralists. Apart from<br />

the direct effect of tick infestation on animal production and productivity, ticks are inevitably efficient vectors<br />

of many pathogens, like protozoa, viruses, bacteria, and rickettsiae to man and domestic animals. A survey on<br />

ticks (arthropods) was carried out in Zaria abattoir in December 2009. 120 animals were samples, out of which<br />

66 (55 %) were males and 54 (45 %) females. Four species of ticks were collected from three breeds of cattle<br />

and their prevalence showed; Amblyomma variegatum 27 (22.5%) as the commonest, followed by Boophilus<br />

decoloratus, 21 (17. 5%), Hyalomma sp 8 (6.7 %) and Rhipicephalus sanguineus 4(3.3 %). We also noted that<br />

19(15.8%) of the animals examined had skin lesions in addition to ticks infestation. We therefore recommend<br />

in strong term a control of ticks in our environment to prevent spread of diseases and improve animal<br />

production in this region.<br />

Key words: Cattle, ticks, abattoir<br />

* Corresponding author: hagbike@yahoo.com<br />

Received on: 18 Jan 2012<br />

Accepted on: 28 Jan 2012<br />

Online Published on: 01 Feb 2012<br />

Original Article


SURVEY OF TICK INFESTATION IN CATTLE IN ZARIA …<br />

Introduction<br />

Nigeria had a mean cattle population of<br />

13.9million in 1990, of which 11.5million of this<br />

population were kept under pastoral system (Okoli<br />

et al., 2012) and 2.4 million in the villages (Roger,<br />

1999). Furthermore, these cattle were<br />

predominantly zebu, such as, Bunaji (White Fulani),<br />

Rahaji (Red Bororo), Sokoto gudali and others. The<br />

author reported a seasonal change in the relative<br />

proportion of these animals in various ecological<br />

zones of the country.<br />

Apart from trypanosomosis and other disease<br />

agents, ticks also affect the production of animals.<br />

Ticks are obligatory blood-sucking arachnid<br />

arthropods infecting mammals, birds, reptiles and<br />

amphibians. They are vectors of disease agents<br />

(such as babesiosis, cowdriosis, anaplasmosis),<br />

causing anaemia, dermatitis, paralysis, otocariasis,<br />

as well as loss of production (Schmidt and Roberts<br />

1989). Three families of ticks have been identified,<br />

but two of them are well known and of veterinary<br />

importance, Ixodidae (hard ticks) and Argasidae<br />

(soft ticks) (Sonenshine 1991; Luqman et al., 2007).<br />

Once they attach to a host for a blood meal,<br />

they can cause skin irritation and anemia.<br />

According to Radunz (2003), cattle ticks transmit<br />

the organisms that cause tick fever, which is a<br />

serious blood parasite disease of cattle. This disease<br />

can be lethal to susceptible animals, and others may<br />

suffer severe loss of condition. They are vectors of<br />

pathogens, such as Babesia, Theileria, and<br />

Anaplasma spp. to animals in the world (Soulsby,<br />

1982).<br />

Because of the diseases they transmit in<br />

addition to induce paralysis or toxicosis and cause<br />

physical damage to livestock, animals in poor<br />

condition are especially vulnerable (Radunz, 2003).<br />

Previously unexposed cattle become heavily<br />

infested until they build up a degree of resistance.<br />

Bos indicus cattle (tropical breeds) and their crosses<br />

develop a greater degree of resistance than do Bos<br />

taurus (British and European breeds) (Radunz,<br />

2003).<br />

According to Robert et al. (2009), the winter<br />

tick is a one-host species that feeds primarily on<br />

large hoofed animals. The larvae attack host<br />

animals from early October through April, molt to<br />

nymphs on the host, feed and then molt to the adult<br />

stage while still on the host. Both males and females<br />

take a blood meal, mate, and then the engorged<br />

female drop to the ground and lays eggs. Tick<br />

populations on the host get to a peak between late<br />

October and mid-February.<br />

The economic impact of tick infestations is<br />

enormous worldwide. In 1984, the United Nation<br />

Food and Agriculture Organization (FAO)<br />

estimated the global cost of Ixodidae tick infestation<br />

to be US$7.0 billion annually. The one-host tick<br />

Boophilus microplus is reported to have caused<br />

losses of more than US$1.0 billion and US$1.0<br />

million annually in South America and Australia,<br />

respectively (Radostits et al. 2000).<br />

Zaria and it’s environ has a special climate<br />

(Guinea Savannah), with its rainy (range from April<br />

to October) and dry (from November to March)<br />

seasons favorable to agriculture and animal<br />

husbandry (Mortimore, 1970). Many cattle graze in<br />

the pastures and forests, and the probability for<br />

them to be exposed to tick infestation is very high.<br />

However, so far, only few studies have been done<br />

on ticks, particularly encountered at the slaughter<br />

house which is the true picture of those in the field.<br />

The aim of this study was to determine the<br />

frequency of tick infestation in cattle observed in<br />

Zaria abattoir.<br />

Materials and Methods<br />

Study Area<br />

A study of ticks was carried out in Zaria<br />

abattoir. Zaria (11° 3' N; 7° 42' E) is located about<br />

83km North of Kaduna, along the Kaduna-Kano<br />

highway (Mortimore, 1970). Zaria comprises of two<br />

Local Government Areas namely; Zaria and Sabon<br />

Gari. By the existing pattern of settlement, Zaria<br />

urban is composed mainly of four districts namely;<br />

Zaria City, Tudun Wada, Sabon Gari and Samaru.<br />

Zaria is made up of a natural and stable<br />

ecosystem in the Northern Guinea Savannah zone,<br />

with a discontinuous layer of sparsely distributed<br />

short trees followed by relatively continuous layers<br />

of tall, medium and short grasses; rainfall is below<br />

125mm (Mortimore, 1970). Zaria is an old<br />

commercial, administrative and academic town in<br />

Northern Nigeria, but most parts have poor<br />

environmental hygiene as evident by heaps of<br />

refuse dumps coupled with indiscriminate disposal<br />

82 J. Vet. Adv., 2012, 2(2):81-87


of human and animal wastes, even by the side of<br />

streets (Aina, 2002, Unpublished B.Sc. project of<br />

Department of Geography, A.B.U. Zaria).<br />

Sample Collection<br />

120 cattle were randomly selected and<br />

ectoparasites specimen were collected from them.<br />

All parts of the body of cattle were carefully<br />

examined. Using hand gloves, the ticks were<br />

removed from the body of the host with all<br />

necessary precautions to avoid damage to the<br />

mouthparts of the ticks and skin of host. Specimens<br />

collected were put in folded white paper (each<br />

sample/ animal) with little space to allow the ticks<br />

have access to air. The specimen containers were<br />

carefully labeled to indicate: breed of cattle, site of<br />

tick location in the body of the animal and sex of<br />

the animal. The samples collected were then<br />

transported to the Veterinary Entomology<br />

Laboratory, ABU, Zaria and directly preserved in<br />

70 % alcohol before examination.<br />

Morphological identification<br />

The live ticks were placed in petri dish<br />

containing 70% alcohol using forceps and the<br />

samples were examined with low power dissecting<br />

microscope (Nikon, made in Japan) and identified<br />

by using the key of morphological characters as<br />

described by Service (1979).<br />

Statistical Analysis<br />

The data collected were tabulated according to<br />

the number of visits to the abattoir. The students ttest<br />

were used to compare the means, correlation<br />

analysis was also used to compare between types of<br />

ticks and the lesions, the sex and breed of cattle;<br />

using the SPSS version 16.<br />

Results and Discussion<br />

Presented in Tables 1, 2, 3, 4 and 5, about 120<br />

heads of cattle were sampled, out of which 66 (55<br />

%) were males and 54 (45 %) females. Among the<br />

breed in the same population, the White Fulani<br />

breed was the most frequent breed with 90 (75 %),<br />

followed by Red Bororo, 20 (16.7 %) and Sokoto<br />

Gudali 10 (8.3 %). The result showed that inguinal<br />

region was the most common predilection site for<br />

83 J. Vet. Adv., 2012, 2(2):81-87<br />

OBADIAH AND SHEKARO<br />

the ticks, with 53 (44. 2 %) and the chest had the<br />

least with 5 (4.2 %).<br />

Table 1: Sex variation in with tick infestation<br />

Sex Frequency Prevalence (%)<br />

Male 66 55.0<br />

Female 54 45.0<br />

Total 120 100<br />

Table 2: Breed associated with tick infestation<br />

Breed Frequency Prevalence (%)<br />

White Fulani 90 75.0<br />

Sokoto Gudali 10 8.3<br />

Red Bororo 20 16.7<br />

Total 120 100<br />

Table 3: Predilection site associated with tick infestation<br />

Predilection site Frequency Prevalence (%)<br />

Inguinal 53 44.2<br />

Chest 5 4.2<br />

General body surface 62 51.7<br />

Total 120 100<br />

Table 4: Types of ticks observed in the animals<br />

Type of tick Frequency Prevalence (%)<br />

Amblyoma sp. 27 22.5<br />

Boophilus sp. 21 17.5<br />

Rhipicephalus sp.<br />

Hyalomma sp.<br />

Others<br />

4<br />

8<br />

60<br />

3.3<br />

6.7<br />

50<br />

Total 120 100<br />

Table 5: Lesions observed associated with tick<br />

infestation<br />

Lesion Frequency Prevalence (%)<br />

Present 19 15.8<br />

Absent 202 84.2<br />

Total 120 100<br />

Four types of ticks were identified:<br />

Amblyomma variegatum, Boophilus decoloratus,<br />

Rhipicephalus sanguineus, and Hyalomma sp. The<br />

frequency of occurrence in the study showed that<br />

Amblyomma variegatum 27 (22. 5 %) was the<br />

commonest ticks observed in cattle in Zaria abattoir<br />

followed by Boophilus decoloratus, 21 (17. 5),<br />

Hyalomma, 8 (6.7 %) and Rhipicephalus<br />

sanguineus 4 (3.3 %). In addition, 19 animals had<br />

skin lesions similar to that described for<br />

Dermatophilos infection while 101 animals had<br />

none. Some of these lesions were associated with<br />

ticks’ infestations, while some were not (Table 4).


Ticks identifications (External morphology)<br />

The external morphology of the four genuses of<br />

ticks were examined and identified based on the<br />

descriptive terminology of Service (1979) and<br />

lecture notes of Agbede (2009, Advanced<br />

Entomology course for postgraduate students,<br />

2008/09 session). The body had four pairs of legs<br />

which were segmented (coxa, trochanter, femur,<br />

genu, tibia and tarsus) and terminated in a pair of<br />

claws. The ticks were observed to have the<br />

capitulum (where the head and mouthparts are<br />

located) exposed and easily visible from the top.<br />

The upper side of their body bears a distinctly<br />

sclerotized shield or scutum. This structure covered<br />

most of the upper body surface in the male tick, but<br />

was restricted to a much smaller area (immediately<br />

behind the capitulum) in the female.<br />

The engorged female had her abdomen<br />

increased to many times its normal dimensions and<br />

the scutum appeared to be extremely small in<br />

relation to the body size. Male ticks were not so<br />

large when engorged like the female. These features<br />

were presented as documented in the text by Service<br />

(1979).<br />

Ticks and tick-borne diseases affect animals<br />

and human health worldwide and are the cause of<br />

significant economic losses in livestock. Animal<br />

ticks have been reported from all over the world and<br />

the various species in domestic ruminants have been<br />

identified to include: Amblyomma variegatum,<br />

SURVEY OF TICK INFESTATION IN CATTLE IN ZARIA …<br />

Boophilus decoloratus, Rhipicephalus sanguineus,<br />

and Hyalomma sp and Dermaginatus marginatumas<br />

(Agbede, 2009 Lecture notes for Advance<br />

Entomology course for postgraduate students,<br />

2008/09 session).<br />

In Nigeria, James and Jidayi (2004) had an<br />

investigation on ecto-parasites of livestock from<br />

Maiduguri Metropolitan and its environs and<br />

Nangere in Yobe State. They examined 1,600<br />

camels, 2,200 cattle, 500 sheep, 400 goats, 230 dogs<br />

and 250 pigs for ectoparasites. The results showed<br />

that the species of ticks found were all from the<br />

Family Ixodidae. In addition, in cattle, infestation<br />

with Boophilus decoloratus, Hyalomma tuncatum,<br />

Rhipicephalus sanguineus, Haemaphysalis leachii<br />

and Amblyomma lepidum are predominant in that<br />

order.<br />

Based on the above finding, the most widely<br />

distributed genus in our study was Boophilus<br />

decoloratus, followed by Amblyomma, Hyalomma,<br />

and Rhipicephalus sp in that order. Radunz (2003)<br />

in the same vein reported that Boophilus microplus<br />

was the most serious external parasites of cattle in<br />

the Northern Australia. This tick favors cattle, but<br />

infestations also occur in buffaloes, deer, horse, and<br />

sheep he explained. In Nigeria, Garba et al. (2011)<br />

documented the incidence of ticks like<br />

Rhipicephalus spp 20 (87%) and Boophilus spp 3<br />

(13%) to be associated with the horses.<br />

Contrary to our findings, Durrani and Shakoori<br />

(2009) studied the ecological growth conditions of<br />

cattle ticks in Punjab, Pakistan, out of 120 tick<br />

specimens, the results showed that, Hyalomma sp<br />

(12%) ticks have the highest prevalence, followed<br />

by Boophilu sp, (8.1%), Haemaphysalis sp (5%)<br />

and Rhipicephalus sp (3.1%) in that order. Also in<br />

another study, Durrani and Kamal (2008)<br />

demonstrated that Hyalomma sp, Boophilus sp,<br />

Rephicephalus sp and Haemaphysalis sp in that<br />

order were genera that infested domestic animals.<br />

Khan et al. (1993) also documented the prevalence<br />

in Hyalomma sp to be 28.2% (1269/4500) in cattle<br />

and 14.7% (662/4500) in buffaloes in Faisalabad<br />

district of Pakistan.<br />

A number of factors are said to affect the<br />

prevalence of tick infestation in animals; the tick<br />

species involved, suitability of the local<br />

environment, seasonal conditions and susceptibility<br />

of the host to tick infestation in that region. For<br />

84 J. Vet. Adv., 2012, 2(2):81-87


example, Wahid (2004) reported that high density<br />

of ticks were recorded in the month of August,<br />

September, and October, when the mean<br />

temperature was (27 0 C) and relative humidity as<br />

Skin lesions<br />

85 J. Vet. Adv., 2012, 2(2):81-87<br />

OBADIAH AND SHEKARO<br />

84%. In our study, despite the weather being cold<br />

with harmattan winds, the presence of ticks means<br />

that they have become adapted to the environmental<br />

condition of the Zaria region.<br />

A B<br />

Fig. 2: Tick infestation in cattle associated with skin lesions in the forelimb (A) and inguinal<br />

region (B).<br />

Ticks<br />

C D<br />

Fig. 4: Infestation of the ticks without corresponding skin lesions of female Sokoto Gudali and Red<br />

bororo male on the inguinal regions respectively.<br />

the host. Both males and females take a blood meal,<br />

The positive association of ticks with the mate, and then the engorged female drops to the<br />

raining season has been documented by Koney et al. ground and lays eggs. Tick population on the host<br />

(1994). Several species of ticks that attack cattle in reaches its peak between late October and mid-<br />

Oklahoma in winter is said to be a one-host species February (Robert et al., 2009). December period in<br />

that feed primarily on large hoofed animals. Larvae our study corresponded with the observation on the<br />

attack host animals from early October through life cycle of ticks in animals.<br />

April, molt to nymphs on the host, feed on blood We observed 19 (15.8 %) of ticks associated<br />

meal and then molt to the adult stage while still on with the skin lesions in this study. These lesions<br />

Tick<br />

Skin lesions<br />

Ticks


esembled the clinical picture of bovine<br />

Dermatophilosis. The distribution of the lesions of<br />

this disease according to many authors varied and<br />

could be found on the head, neck, back, sides,<br />

hindquarters, ventral abdomen, udder and legs. For<br />

example, Awad et al. (2008) described the lesions<br />

of bovine Dermatophilosis to include; thick greasy<br />

scabs with protruded hairs distributed on the neck,<br />

back, sides and ventral abdomen (Fig 2).<br />

In another study, there was an association with<br />

tick (identified as Boophilus annulatus) infestation<br />

in 13 (76.5%) out of 17 cases with dermatophilosis,<br />

but another researcher reported a negative<br />

correlation between Boophilus species and<br />

dermatophilosis and that Amblyomma variegatum<br />

was the most important tick involved in the<br />

pathogenesis of the disease (Koney et al., 1994). In<br />

Ethiopia (Berhem et al., 1999), the association of<br />

dermatophilosis with ticks was recorded as 45.2%.<br />

Infection with D. congolensis occurs when the<br />

integrity of the skin is impaired, as in long exposure<br />

to rain or traumatic injuries resulting from<br />

arthropod bites, e.g. from ticks, flies and<br />

mosquitoes (Berhem et al., 1999).<br />

It has been suggested that, the arthropods also<br />

serve as mechanical transmitters of D. congolensis<br />

into epidermal layers, where germination of<br />

zoospores takes place to form multi dimensional<br />

branching filaments (Jones et al., 1997). The<br />

isolation of the organism from the mouthparts of<br />

ticks removed from infected and-apparently noninfected<br />

skin of cattle had been reported (Kruger et<br />

al., 1998). The hard tick Amblyomma variegatum<br />

had been associated with transmission of<br />

dermatophilosis (Morrow et al., 1993) as a result of<br />

their immunosuppressive effect on the host.<br />

Nutritional deficiency also predispose to<br />

Dermatophilosis (Lloyd, 1971), so even in the<br />

absence of ticks, according to the author, clinical<br />

cases could still occur.<br />

No breed was completely resistance to ticks in<br />

our study, because all the breeds were infested.<br />

Experimental studies on the resistance of host to<br />

tick infection have been documented. For example,<br />

in Nigeria, Dipeolu and Haruna (1984) observed<br />

that rabbits which were previously unexposed to<br />

ticks acquired resistance to larval, nymphal and<br />

adult forms of Amblyomma variegatum. The degree<br />

of acquired resistance was lowest in rabbits exposed<br />

SURVEY OF TICK INFESTATION IN CATTLE IN ZARIA …<br />

to the larval form and highest in rabbits infested<br />

with the adult form.<br />

From the oral interview the author had with<br />

some of the butchers, it was noted that most of the<br />

animals brought to the abattoir were from Fulani<br />

herd, while some from farmers who kept them in<br />

their houses for fattening purpose before they sell<br />

them, particularly the males. Those who kept these<br />

cattle for the purpose of fattening are said to take<br />

care of them by application of acaricides,<br />

deworming and daily check up, unlike those from<br />

the Fulani herd.<br />

Control of tick infestation has been difficult<br />

because ticks have few natural enemies. And the<br />

use of acaricides has had limited efficacy in<br />

reducing tick infestation and is often accompanied<br />

by serious drawbacks, including acaricides resistant<br />

ticks, environmental contamination and<br />

contamination of milk and meat products with drug<br />

residues (Graf et al., 2004). Other approaches<br />

include; the use of hosts with natural resistance to<br />

ticks, pheromone-impregnated decoys for attracting<br />

and killing ticks, biological control agents and<br />

vaccines (Sonenshine et al., 2006; Willadsen, 2006).<br />

These methods are lacking in our environment, as a<br />

result ticks burden in our animals is high especially<br />

during the raining season.<br />

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