Foetal Wastage at the Oja-tuntun Slaughterhouse in Ogbomoso Town, South Western Nigeria: A Three Year Retrospective Study

Aim: This survey was carried out to determine the prevalence of foetal wastage amongst cattle and goat; and its associated economic loss. Study Design: A retrospective survey was carried out using the abattoir records of Owode Veterinary Hospital, Ogbomoso, were relevant data relating to foetal wastage was retrieved. Place and Duration: The study was conducted in Ogbomoso, Oyo State, South-Western Nigeria from January 2014 to December 2016. Methodology: A three year retrospective survey (January 2014 to December 2016) based on the Veterinary Hospital records were used to determine the extent of foetal wastage as well as associated economic loss. Results: A total of 11,903 cattle comprising 8,482 (71.3%) males and 3,421 (28.7%) females; 1,269 goats comprising of 791 (62.3%) males and 78 (37.7%) females were slaughtered over the study period. A total of 244 foetuses (cows) and 55 foetuses (does) were recovered during the period of study with a calculated prevalence rate of 7.1 and 11.5% respectively. Analysis of the economic loss over the study period was estimated at approximately N25,254,000 ($69,762) and N440,000 ($1,215) for cattle and goats respectively. With a calculated average annual loss of N8,418,000 to foetal wastage which is too huge for any developing country. Conclusion: Reoccurring slaughter of gravid females and its resultant high foetal wastage must be discouraged; so as to meet demand for meat and meat-related products as well as boost the nation’s economy. Hence the need for all hands to be on deck to develop as well as implement local strategies aimed at reducing future economic losses.

Parasitic infections as major cause of abattoir condemnations in cattle slaughtered at an Ethiopian abattoir: 10-year retrospective study

Abattoirs are vital for gathering information on animal diseases and protecting the public from consuming infected or unhygienic meat. To assess the major reasons for organ and carcass condemnations and their financial implications, we reviewed 10-year abattoir records of slaughtered bovines between January 2005 and December 2014 at Kombolcha ELFORA abattoir, north-east Ethiopia. Of the 46,913 cattle slaughtered during that period, 17,963 (38.3%) had at least one disease condition. Lungs (10.67%) and liver (25%) were the most affected and condemned organs, followed by heart (1.53%), head (0.56%), tongue (0.17%) and kidney (0.32%). The major conditions responsible for condemnation were fasciolosis (49.89%), hydatid cyst (55.55%), pericarditis (78.2%), hydronephrosis (35.8%), abscess (71.7%) and abscess (43.9%), in liver, lung, heart, kidneys, head and tongue, respectively. The direct financial losses incurred from organ and carcass condemnation over the 10-year period amounted to ETB 1,219,399 (USD 61,946.9), with parasitic diseases such as fascioliasis and hydatidosis accounting for ETB 256,837.5 (USD 13,047.64) and ETB 170,827.5 (USD 8678.23) in losses, respectively. This study describes a significant loss of cheap and reliable sources of protein due to non-utilization of infected organs or carcasses, emphasizing the need to implement integrated approaches in disease surveillance and control programmes.

Seasonal prevalence of Bovine Tuberculous lesions in cattle slaughtered in Yola abattoirs

Bovine tuberculosis is endemic in Nigeria. There is paucity of information on the prevalence of bovine tuberculous lesions in cattle slaughtered in Yola, Adamawa state. The annual prevalence and seasonal variation of bovine tuberculous lesions were assessed based on abattoir records of tuberculosis lesions from 2008 to 2012. The overall prevalence of bovine tuberculosis lesions from 2008 to 2012 ranges from 8.68% (6.03 – 11.33) in 2008 to 10.33% (8.63 – 12.03%) in 2012 with peak prevalence of 12.73% in 2011. Types of lesions were not recorded systematically, however, lesions that were observed ranges from TB granuloma, TB abscesses with yellowish pus, caseous necrotic tubercles, multiple necrosis to focal granulomas. Annual prevalence of bovine tuberculosis lesions recorded in Yola abattoirs differ significantly (p ? 0.05). Prevalence of tuberculous lesions in Yola abattoirs was significantly influenced by season (p < 0.05). Tuberculosis is endemic in cattle slaughtered in abattoirs meant for human consumption in Yola, therefore humans are at risk of acquiring zoonotic tuberculosis through consumption of contaminated meat.DOI: http://dx.doi.org/10.3329/bjvm.v11i2.19125 Bangl. J. Vet. Med. (2013). 11 (2): 113-120

Prevalence and Direct Economic Losses from Bovine Tuberculosis in Makurdi, Nigeria

A retrospective study was conducted to investigate the prevalence of bovine tuberculosis and direct economic losses (DEL) from tuberculosis in cattle slaughtered in Makurdi abattoirs from 2008 to 2012, using abattoir records obtained from the Ministry of Agriculture and Natural Resources. Out of 61654 cattle slaughtered during the study period 1172 (1.90%) were positive for tuberculosis lesions. The annual prevalence of bovine tuberculosis ranges from 0.90% in 2008 to 4.04% in 2012. There was significant (P<0.05) difference in annual prevalence of bovine tuberculosis. It was also observed that there was no seasonal difference in the prevalence of bovine tuberculosis. A total of 1935 affected organs by BTB weighing 3046.50 kg, amounting to 2.91 × 106 Naira (1.82 × 104 USD), were condemned within the study period. Seasonal variation in organ condemnation due to bovine tuberculosis was significantly different (Mann-WhitneyUstatistics = 774 × 103,P=0.034). It was concluded that bovine tuberculosis is prevalent in Makurdi and accounts for heavy economic losses due to condemnation of edible organs.

An abattoir-based study of hydatidosis in the dromedary (Camelus dromedarius) in Mashhad, Iran

A 6-year retrospective study based on abattoir records was carried out to determine the prevalence of hydatidosis in dromedaries in Khorasan province in north–eastern Iran. Between 20 March 2004 and 19 March 2010, 25,255 dromedaries were slaughtered in the study area and the livers of 2791 (11.1%) and the lungs of 3289 dromedaries (13.2%) were discarded due to hydatidosis. The annual prevalence of liver condemnations due to hydatidosis decreased from 24.1% in 2004–2005 to 13.3% in 2009, and finally to 6.8% in 2010. The corresponding features for lung condemnation due to hydatidosis were relatively higher than liver, declining from 28.7% in 2004–2005 to 14.9% in 2009, and finally to 7.1% in 2010. Liver and lung condemnations due to hydatidosis were significantly higher in the spring. This could be attributed to various factors such as sources of slaughtered animals, changes in management practice and ecological factors. The present survey provides baseline data for the future monitoring of this potentially important parasitic disease in the region.

Taeniasis, cysticercosis and echinococcosis/hydatidosis in Nigeria: II — prevalence of bovine and porcine cysticercosis, and hydatid disease in slaughtered food animals based on retrospective analysis of abattoir records

A retrospective analysis of slaughterhouse records during the pre-veterinary-organized meat inspection era (before 1970) for cysticercosis and hydatidosis in food animals showed that parasitic cysts were documented but not identified and that the numbers of slaughtered animal species harbouring various parasitic cysts were not recorded. Since the various parasites which the meat inspectors observed were not identified, the prevalence of species encountered could not be determined.An analysis of abattoir records during the veterinary meat inspection era showed that Cysticercus bovis and C. cellulosae infections were documented in cattle and pigs respectively. Moreover, hydatid cysts were detected in cattle, pigs, sheep, goats and camels.The data obtained from this survey cannot be wholly relied upon as accurate, but it can be used as a baseline for the proper evaluation of the status of these zoonotic parasitic diseases in future co-ordinated researches.

Taeniasis, cysticercosis and echinococcosis/hydatidosis in Nigeria: III — prevalence of bovine and porcine cysticercosis, and hydatid cyst infection based on joint examination of slaughtered food animals

A survey was carried out in the abattoirs in Kano (Sudan zone), Kaduna and Zaria (Northern Guinea zone) and Jos (Bauchi plateau zone) to assess the actual prevalence of bovine and porcine cysticercosis, and of hydatid cyst infections in slaughtered food animals.Hydatid cysts were detected in all species of animals slaughtered at the abattoir in the Sudan zone where the prevalence was: camels (55.5%), cattle (14.70%), sheep (11.4%), goats (26.4%). In the Northern Guinea zone, the prevalence was: camels (50%), cattle (0%), pigs (0%), sheep (0.21%) and goats (0.79%). In the Bauchi plateau zone, sheep were found to harbour hydatid cysts, with a prevalence of 1.4%. In the various animal species, hydatid cysts were detected in the lungs, liver and spleen. Fertility rates of the hydatid cysts from various hosts were as follows: camels 94.5%, cattle 7.4%, goats 81.3%, and sheep 59.7%.Cysticercus bovis was detected in slaughtered cattle from the three zones surveyed. Northern Guinea zone had the highest prevalence (4%), followed by Bauchi plateau zone (2.1%) and Sudan (1.9%). C. bovis was detected in the tongue, masseter muscle, heart, diaphragm and the quarters of infected cattle.C. cellulosae was detected in 18.4% and 1.76% of slaughtered pigs examined in Northern Guinea and Bauchi plateau zones respectively. The cysts were found in the tongue, masseter muscle, heart, diaphragm, thigh and fore-limbs. No pigs were available for examination in the Sudan zone.The data obtained in this survey are believed to be a better indication of the rate of infection in the various animal species than data obtained from previous abattoir records.