Background: Population growth led to an increase in the number of people raising pigs, resulting in increased demand for piglets/pigs for breeding and pork for consumption.

Aim: This study was carried out to determine the reproductive performance of pigs raised by the intensive management system in Abuja, Nigeria, with a view to assist farmers in ensuring improved productivity and profitability.

Materials and Methods: Using an interview-based questionnaire, data from 121 sows and 649 preweaning piglets were collected in 12 herds, from September 2017 to March 2018. Measures of reproductive and production performance assessed in this study were interfarrowing interval (IFI), number of liveborn piglets (NLB), preweaning piglet mortality (PPM), age at weaning (AAW), weaning to service interval (WSI), age at first farrowing (AFF), number of piglets weaned per litter (NPWL), and number of piglets weaned per sow per year (NPWPY).

Results: The results obtained in this study were IFI 6.2±0.84 months, NLB 7.2±1.11, PPM 31%, AAW 40.2±3.12 days, NPWL 5.3±0.73, WSI 39.4±4.59 days, AFF 9.1±0.60 months, and NPWPY 8.1±1.21. The identified causes of PPM were maternal overlay 31.34%, splay leg/hypoglycemia 22.39%, cannibalism 20.40%, starvation 14.93%, and unknown cause 10.94%.

Conclusion: The result showed that the reproductive performance of the sow (especially, NPWPY and PPM) needs to be improved on. There is a need to promote extension and herd health services by veterinarians and livestock personnel to potential and existing farmers in the area. This is more so because organized pig production in the studied area is relatively new and more people are establishing pig farms in the studied area.

Keywords: Abuja, intensive management system, reproductive performance, swine production.

1. Ate, I.U. and Oyedipe, E.O. (2011) Sow reproductive performance in institutional herds in Benue state, Nigeria. J. Reprod Infertil., 2(2): 24-31.

2. Lanada, E.B., Leeb, J.L.M., More, S.J., Taverosa, A.A. and Cotiw-Anc, B.S. (1999) The reproductive performance of sows raised by smallholder farmers in the Philippines. Prev. Vet. Med., 41(2-3): 171-186. [Crossref]

3. Rekwot, P.I., Jegede, J.O., Ehoche, O.W. and Tegbe, T.S.B. (2001) Reproductive performance in smallholder piggeries in Northern Nigeria. Trop. Agric. (Trinidad), 78(2): 1-4.

4. Nwanta, J.A., Shoyinka, S.V.O., Chah, K.F., Onunkwo, J.I., Onyenwe, I.W., Eze, J.I., Iheagwam, C.N., Njoga, E.O., Onyema, I., Ogbu, K.I., Mbegbu, E.C., Nnadozie, P.N., Ibe, E.C., Oladimeji, K.T. (2011) Production characteristics, disease prevalence, and herd-health management of pigs in Southeast Nigeria. J. Swine Health Prod., 19(6): 331-339.

5. Vega, R.S.A., Consuelo, A.S.E., Ann, M.P.V., Arturo, T.C. and Edwin, C.V. (2012) Performance of selected Philippines commercial piggery farms weaning at different ages. Philipp. J. Vet. Anim. Sci., 38(2): 127-133.

6. Lindgren, Y., Lundeheim, N., Boqvist, S. and Magnusson, U. (2013) Reproductive performance in pigs reared under organic conditions compared with conventionally reared pigs. Acta Vet. Scand., 55(1): 33. [Crossref]

7. Nevrkla, P., Vaclavkova, E., Hadas, Z. and Horky, P. (2016) Effect of farm on productive and reproductive performance in sows of prestice black-pied pig. Acta Univ. Agric. Silvicult. Mendelianae Brunensis. 64(4): 1233-1237. [Crossref]

8. Koketsu, Y. and Lida, R. (2017) Sow housing associated with reproductive performance in breeding herds. Mol. Reprod. Dev., 84(9): 979-986. [Crossref] [PubMed]

9. Kouamo, J., Tankou, W.F.T., Zoli, A.P., Bah, G.S. and Ongla, A.C.N. (2015) Assessment of reproductive and growth performances of pig breeds in the peri-urban area of Douala (equatorial zone). Open Vet. J., 5(1): 64-70. [PubMed] [PMC]

10. Abonyi, F.O., Omeh, C.V.O. and Machebe, N.S. (2012) Neonatal mortality of pigs in Nsukka, Southeast Nigeria. Afr. J. Biotechnol., 11(68): 13228-13234.

11. Abubakar, I.R. (2014) Abuja city profile. Cities, 41(1): 81-91. [Crossref]

12. Tani, S., Pineiro, C. and Koketsu, Y. (2018) 77 returned gilts and their subsequent reproductive performance on commercial farms. J. Anim. Sci., 96(2): 40. [Crossref]

13. Koketsu, Y., Tani, S. and Lida, R. (2017) Factors for improving reproductive performance of sows and herd productivity in commercial breeding herds. Porcine Health Manag., 3(1): 1. [Crossref] [PubMed] [PMC]

14. Bloemhof, S., Mathur, P.K., Knol, E.F. and van der Waaij, E.H. (2013) Effect of daily environmental temperature on farrowing rate and total born in dam line sows. J. Anim. Sci., 91(6): 2667-2679. [Crossref] [PubMed]

15. Wabacha, J.K., Maribei, J.M., Mulei, C.M., Kyule, M.N., Zessin, K.H. and Oluoch-Kosura, W. (2004) Health and production measures for smallholder pig production in Kikuyu Division, central Kenya. Prev. Vet. Med., 63(3-4): 197-210. [Crossref] [PubMed]

16. Yilma, T. (2017) Study on reproductive performance of breeding sows and ultrasound monitoring of ovarian follicle activity and ovulation of post-weaning sows in a commercial pig farm of central Ethiopia. Vet. Med. Open J., 2(3): 76-82. [Crossref]

17. Cilek, S. (2015) Effective factors on survival rate of Malya lambs (11/16 akkaraman x 5/16 deutsches merinofleischschaf). Indian J. Anim. Sci., 85(10): 1112-1116.

18. Phengsavanh, P., Ogle, B., Sturr, W., Bodil, E.F. and Lindberg, J.E. (2010) Feeding and performance of pigs in smallholder production systems in Northern Lao PDR. Trop. Anim. Health Prod., 42(8): 1627-1633. [Crossref] [PubMed]

19. Craig, J.R., Collins, C.L., Athorn, R.Z., Dunshea, F.R. and Pluske, J.R. (2017) Investigating the reproductive performance of gilt progeny entering the breeding herd. J. Swine Health Prod., 25(5): 230-237.

20. Weaver, A., Kind, K.L., Terry, R. and Van Wettere, W. (2014) Effects of lactation length and boar contact in early lactation on expression of oestrus in multiparous sows. Anim. Reprod. Sci., 149(3-4): 238-244. [Crossref] [PubMed]

21. Tani, S., Pineiro, C. and Koketsu, Y. (2018) Risk factors for culling intervals and lifetime performance on commercial breeding farms. J. Anim. Sci., 96(2): 88-89. [Crossref]