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. 2015 Dec 15;82(1):1010.
doi: 10.4102/ojvr.v82i1.1010.

Time-series analysis of ruminant foetal wastage at a slaughterhouse in North Central Nigeria between 2001 and 2012

Nma B Alhaji, Ismail A Odetokun, Aminu Shittu, Joshua Onyango, Umar M Chafe, Muhammed S Abubakar, Issa A Muraina, Folorunso O Fasina, Hu Suk Lee  1
Affiliations

Time-series analysis of ruminant foetal wastage at a slaughterhouse in North Central Nigeria between 2001 and 2012

Nma B Alhaji et al. Onderstepoort J Vet Res. .

Abstract

In developing countries, foetal wastage from slaughtered ruminants and the associated economic losses appear to be substantial. However, only a limited number of studies have comprehensively evaluated these trends. In the current study, secondary (retrospective) and primary data were collected and evaluated to estimate the prevalence of foetal wastage from cattle, sheep and goats slaughtered at an abattoir in Minna, Nigeria, over a 12-year period (January 2001-December 2012). Time-series modelling revealed substantial differences in the rate of foetal wastage amongst the slaughtered species, with more lambs having been wasted than calves or kids. Seasonal effects seem to influence rates of foetal wastage and certain months in the year appear to be associated with higher odds of foetal wastage. Improved management systems are suggested to reduce the risk of foetal losses.

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Figures

FIGURE 1
FIGURE 1
Map of Nigeria, with the location of Minna in the northern central region of Nigeria indicated.
FIGURE 2
FIGURE 2
Monthly and seasonal rates of throughput, pregnant animals slaughtered and foetal wastages observed for the period 2001–2012 at the Minna Metropolitan Abattoir, Nigeria. (a) Monthly throughput (all species), (b) seasonal throughput (all species), (c) monthly slaughter (all pregnant animals), (d) seasonal slaughter (all pregnant animals), (e) monthly rate of foetal wastages (all species) and (f) seasonal rate of foetal wastages (all species).
FIGURE 3
FIGURE 3
Seasonal-trend decomposition of monthly rates of slaughter and foetal wastage at the Minna Metropolitan Abattoir, Nigeria, for the period 2001–2012. (a) Cattle, (b) Sheep and (c) Goats.
FIGURE 4
FIGURE 4
Cycle subseries plot from data of (a) cattle, (b) sheep and (c) goats slaughtered at Minna Metropolitan Abattoir, Nigeria, during the period 2001–2012.
FIGURE 1-A2
FIGURE 1-A2
Monthly and seasonal rate of throughput, slaughter of pregnant animals and foetal wastage for cattle, Minna Metropolitan Abattoir, Nigeria, during 2001–2012. (a) Monthly throughput for cattle, (b) seasonal throughput for cattle, (c) monthly slaughter of pregnant cattle, (d) seasonal slaughter of pregnant cattle, (e) monthly rate of foetal wastages in cattle and (f) seasonal rate of foetal wastages in cattle.
FIGURE 1-A2
FIGURE 1-A2
Monthly and seasonal rate of throughput, slaughter of pregnant animals and foetal wastage for cattle, Minna Metropolitan Abattoir, Nigeria, during 2001–2012. (a) Monthly throughput for cattle, (b) seasonal throughput for cattle, (c) monthly slaughter of pregnant cattle, (d) seasonal slaughter of pregnant cattle, (e) monthly rate of foetal wastages in cattle and (f) seasonal rate of foetal wastages in cattle.
FIGURE 2-A2
FIGURE 2-A2
Monthly and seasonal rate of throughput, slaughter of pregnant animals and foetal wastage for sheep, Minna Metropolitan Abattoir, Nigeria, during 2001–2012. (a) Monthly throughput for sheep, (b) seasonal throughput for sheep, (c) monthly slaughter of pregnant sheep, (d) seasonal slaughter of pregnant sheep, (e) monthly rate of foetal wastages in sheep and (f) seasonal rate of foetal wastages in sheep.
FIGURE 2-A2
FIGURE 2-A2
Monthly and seasonal rate of throughput, slaughter of pregnant animals and foetal wastage for sheep, Minna Metropolitan Abattoir, Nigeria, during 2001–2012. (a) Monthly throughput for sheep, (b) seasonal throughput for sheep, (c) monthly slaughter of pregnant sheep, (d) seasonal slaughter of pregnant sheep, (e) monthly rate of foetal wastages in sheep and (f) seasonal rate of foetal wastages in sheep.
FIGURE 3-A2
FIGURE 3-A2
Monthly and seasonal rate of throughput, slaughter of pregnant animals and foetal wastage for goats, Minna Metropolitan Abattoir, Nigeria, during 2001–2012. (a) Monthly throughput for goat, (b) seasonal throughput for goat, (c) monthly slaughter of pregnant goat, (d) seasonal slaughter of pregnant goat, (e) monthly rate of foetal wastages in goat and (f) seasonal rate of foetal wastages in goat.
FIGURE 3-A2
FIGURE 3-A2
Monthly and seasonal rate of throughput, slaughter of pregnant animals and foetal wastage for goats, Minna Metropolitan Abattoir, Nigeria, during 2001–2012. (a) Monthly throughput for goat, (b) seasonal throughput for goat, (c) monthly slaughter of pregnant goat, (d) seasonal slaughter of pregnant goat, (e) monthly rate of foetal wastages in goat and (f) seasonal rate of foetal wastages in goat.
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