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Animal Health Lab (AHL)

Photo of Dr. Bobwealth Omontese
Dr. Bobwealth Omontese
Assistant Professor
Carver Complex Thomas Wing Office A-109
Phone: (256) 372-4173
Email: bobwealth.omontese@aamu.edu

Research

Research in the AHL (Omontese) Lab focuses on how routine management practices and environmental factors affect livestock welfare, health and performance. Specifically, our team seeks to understand the impact of stressful events (weaning, summer heat, transportation, improper handling and poor housing conditions, etc) and nutritional strategies on livestock performance. Also, we investigate the effects of targeted treatments/mitigation efforts including changes in management practices and nutritional strategies on stress response and animal behavior. Our Lab combines the application of modern animal health, behavioral monitoring, diagnostic imaging and next-generation sequencing (NGS) technology to further elucidate these complex relationships. Information from our research may be used by livestock producers to make informed decisions that could improve performance and profitability of their herds. The Omontese Lab continues to collaborate with the livestock industry and other researchers within and outside the United States. If you’re interested in joining the lab, collaborating with us, or would like to support our research, please contact Dr Bobwealth Omontese at bobwealth.omontese@aamu.edu.

Personnel

Principal Investigator Dr. Omontese is an Assistant Professor in the Department of Food and Animal Sciences. He received a Doctor of Veterinary Medicine (DVM) degree, a Master of Science (MSc.) degree and a Doctorate (PhD) in Theriogenology/Animal Reproduction from the Ahmadu Bello University, Nigeria. Dr Omontese completed a post doctoral fellowship at the College of Veterinary Medicine and The College of Agriculture, Life and Natural Sciences, University of Minnesota, USA. His interest is welfare, health and fertility of livestock especially cattle, sheep and goats. During his time postdoctoral work in Minnesota, Dr Omontese conducted research investigating the relationships between hoof lesions and fertility in lactating dairy cows, and the effects of backgrounding diets on performance of beef cattle. Also, Dr Omontese also bagged a Master of Public Affairs (MPA) degree from the prestigious Humphrey School of Citizenship and Public Affairs, University of Minnesota. Since joining Alabama A&M, Dr Omontese seeks to investigate strategies to minimize stress due to weaning, transportation and summer heat in beef cattle. He is a member of several professional organizations including the American Dairy Science Association (ADSA), American Association of Bovine Practitioners (AABP), Dairy Cattle Research Council (DCRC), North American Colleges and Teachers of Agriculture (NACTA), etc. He has published over 30 peer reviewed articles, refereed abstracts/presentations and two book chapters. For detailed publications, please visit https://scholar.google.com/citations?user=a2UnfJ4AAAAJ&hl=en&oi=ao

Publications

PUBLICATIONS: In preparation/submitted

  1. Omontese, B.O. J. A. Langlie, E. M. Mousel, D. M. Braaten, A. Gomez, A. DiCostanzo, and M. Webb. Influence of backgrounding systems on beef cattle growth and performance. 
  2. Omontese, B.O. A. K. Sharma, A. DiCostanzo, M. J. Webb, and A. Gomez. Influence of backgrounding systems on rumen microbiome dynamics of beef cattle. 
  3. Omontese, B.O., R. S. Bisinotto, G. Cramer. Relationship between hoof lesions and culling of lactating Jersey cows. 

PUBLICATIONS: Peer reviewed

  1. Omontese, B.O., R. S. Bisinotto, G. Cramer. (2020). Relationship between activity and hoof lesions of lactating Jersey cows. J. Dairy Sci., 103(11):10494-10505
  2. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2020). Association between hoof lesions and fertility of lactating Jersey cows. J. Dairy Sci., 103(4):3401 – 3413.
  3. Omontese, B.O., G.C. Gomes, A.R. Santos, L.G. Silva, V.R. Merenda, R.S. Bisinotto. (2020). Use of milk progesterone information to predict fertility outcomes in dairy cows subjected to the 5-d timed AI program. Dairy Sci., 103(7):6600-6011.
  4. Omontese, B.O. A.B. Adewuyi, P.I. Rekwot, A.I. Nwannenna and J.S. Rwuaan. (2017). The effect of ascorbic acid on conception rate of Yankasa ewes after oestrus synchronization. Revue d’élevage et de médecine vétérinaire des pays tropicaux. 70 (1): 9-12.
  5. Samuel, F.U., Chiezey, N.P., Bello, T.K., Maikaji, F.S., Ibrahim, M., Ereke, S.O., Omontese, B.O., Ahmed, H.A., Salisu, M.D., Alao, R., and Umar, M.S. (2017). Changes in hematological parameters following oestrus synchronization using Fluorogestone Acetate (FGA) intravaginal sponge in Red Sokoto does. J. of Anim. Prod. Res. 29(1): 83-87.
  6. Omontese, B.O. P.I. Rekwot, J.O. Ayo, A.I. Nwannenna, I.U. Ate. (2016). Serum progesterone profiles of Sahel does treated with progestagens with or without exposure to buck effect. J. of Anim. Prod. Res., 28 (2): 118-125.
  7. Omontese, B.O. Rekwot, P.I., Ate, I.U., Ayo, J.O., Kawu, M.U., Rwuaan, J.S., Nwannenna, A.I., Mustapha, R.A. and Bello, A.A. (2016). An update on oestrus synchronisation of goats in Nigeria. Asian Pacific J. of Reprod., 5(2): 96–101.
  8. Omontese, B.O. Adewuyi, Rekwot, P.I., Nwannenna, A.I. and Echekwu, W.O. (2015). Effects of oxytocin on fertility of Red Sokoto goats treated with prostaglandin F2α. West Afr. J. Pharmacological Drug Res. 30: 28-31.
  9. Egbodo, B., Ate, I.U., Omontese, B.O., Oke, P.O., Samuel, F.U., Bello, T.K. and Hassan, R. (2015). Ovarian activities in Bunaji cows slaughtered during the dry season at the Zaria abattoir, Kaduna state. of Anim. Prod. Res., 27(1): 36-42.
  10. Omontese, B.O., Rekwot P.I., Rwuaan J.S., Ate, I.U. and Makun, H.J. (2014). Induction of oestrus in Nigerian Ouda ewes with different oestrus synchrony protocols. Revue Méd. Vét., 165 (7-8): 240-244.
  11. Omontese B.O., Rekwot P., Rwuaan J. and Nwannenna A. (2014). Comparison of short-term vs. long-term progestin treatments for synchronisation of oestrus in Red Sokoto does during the rainy season. Basic Clin. Pharm. and Toxicology, 115 (1): 370.
  12. Omontese, B.O., Rekwot, P.I., Ate, I.U., Makun, H.J. and Rwuaan, J.S. (2013). Oestrus behaviour and conception rates of Red Sokoto goats following treatment with equine chorionic gonadotrophin and prostaglandin F2 . Nigerian Vet. J., 34(4): 906-911.
  13. Yusuf, A., Omontese, B.O. and Rekwot, P.I. (2013). Fetal hydrocephalus associated with dystocia in a Yankasa ewe: A case report. Nigerian Vet. J., 34(3): 805-807.
  14. Omontese, B.O., Rekwot, P.I., Rwuaan, J.S., Ate, I.U. and Makun, H.J. (2013). Comparative estrus induction in indigenous Sahel goats using two progestagens (CIDR and FGA) and eCG. Livestock Res. for Rural Dev., 25 (04): Article #066. Retrieved from http://www.lrrd.org/lrrd25/4/omon25066.htm
  15. Omontese, B.O., Rekwot, P.I., Makun, H.J., Ate, I.U., Rwuaan, J.S. and Kawu, M.U. (2013). Oestrus induction using fluorogestone acetate sponges and equine chorionic gonadotrophin in Red Sokoto goats. South Afr. J. of Anim. Sci., 43 (1): 68-73.
  16. Omontese, B.O., Rekwot, P.I., Ate, I.U., Rwuaan, J.S. and Makun, H.J. (2013). Oestrus synchronization using two intravaginal progestagens (FGA and CIDR) for eCG-estrus induction in indigenous Red Sokoto goats during the cold dry season. Albanian J. Agric. Sci., 12 (2): 209-213.
  17. Omontese, B.O., Rekwot, P.I., Rwuaan, J.S., Ate, I.U. and Makun, H.J. (2013). Effect of prostaglandin and equine chorionic gonadotrophin on estrus behaviour of Sahel goats during the harmattan season. Livestock Res. for Rural Dev., 25 (2): Article #031. Retrieved from http://www.lrrd.org/lrrd25/2/omon25031.htm
  18. Omontese, B.O., Rekwot, P.I., Makun, H.J., Ate, I.U. and Rwuaan, J.S. (2012). Induction of estrus in Sahel goats using Fluorogestone acetate (FGA) sponges and equine chorionic gonadotrophin (eCG). J. of Vet. Sci., 10 (2): 21-25.
  19. Rwuaan, J.S., Rekwot, P.I., Omontese, B.O. (2012). Effect of a velogenic Newcastle disease virus on body and organ weights of vaccinated Shika brown cocks. Sokoto J. of Vet. Sci., 10(2): 7-12.
  20. Dare, A., Rekwot, P., Aliu, Y., Mamman, M., Obidi, J., Omontese, B.O, and Rwuaan, J. (2010). Effect of season and progesterone releasing intravaginal device alone or with Pregnant Mare’s Serum Gonadotropin of fertility rates of Bunaji cows. Res. J. of Dairy Sci., 4(1): 1-5.
  21. Omontese, B.O., Rekwot, P.I., Makun, H.J., Obidi, J.A., Rwuaan, J.S. and Chiezey, N.P. (2010). Evaluation of EAZI Breed TM CIDR and FGA-30. Intra vaginal sponge as Estrus Synchronizing Agents in Pre-Partum Red Sokoto does, Res., 3(3): 64-69.
  22. Omontese, B.O., Rekwot, P.I., Makun, H.J., Obidi, J.A., Rwuaan, J.S. and Chiezey, N.P. (2010). Synchronization of estrus using EAZI-Breed CIDR and F7A-30. Intravaginal sponge in prepartum Yankasa ewes. J. of Anim. Sci., 4(1): 53-57.

CONFERENCE PRESENTATIONS: Peer reviewed

  1. Omontese, B.O. A.K. Sharma, E. Jacobson, S. Davidson, J. Langlie, J. Armstrong, A. DiCostanzo, M. Webb and A. Gomez. Rumen microbiome of beef cattle is modulated by backgrounding systems. A paper accepted for presentation at the 2020 ADSA ASAS Midwest meeting to be held on March 2-4 2020, Omaha-Nebraska.
  2. OmonteseB.O. J. Langlie, J. Armstrong, E. Mousel, D. Braaten, A. Gomez, A. Dicostanzo, and J. Webb. Influence of backgrounding systems on cattle growth and performance. A paper accepted for presentation at the 2020 ADSA ASAS Midwest meeting to be held on March 2-4 2020, Omaha-Nebraska.
  3. Langlie, Omontese, B.O. A. DiCostanzo, R. Cox, and M. Webb. Effects of Alternative Beef Backgrounding Systems on Cattle Performance and Carcass Characteristics. A paper presented at the 80th Minnesota Nutrition Conference held on September 18-19, 2019 at Mankato Civic Center in Mankato, MN.
  4. Omontese, B.O., M. L. Celestino, P. Menta, D. Paiva, A. Garcia-Muñoz, A. Masic, V. S. Machado, L. S. Caixeta. 2019. Effects of the administration of a bovine non-specific immune stimulant around transportation on health and performance of Jersey and Jersey-cross heifer calves in the first 60 days of life. A paper to be presented at the 14th Annual Conference of the Western Organic Dairy Producers Alliance in Spark, Nevada 19th – 21th November, 2019.
  1. Omontese, B.O., M. L. Celestino, P. Menta, D. Paiva, A. Garcia-Muñoz, A. Masic, V. S. Machado, L. S. Caixeta. 2019. Effects of the administration of a bovine non-specific immune stimulant around transportation on health and performance of Jersey and Jersey-cross heifer calves in the first 60 days of life. A paper to be presented at the 2019 American Association of Bovine Practitioners (AABP) in St Louis, Missouri from 11th - 13th September, 2019.
  2. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2019). Association between lying behavior and hoof lesions in lactating dairy cows. A paper presented at the 2019 American Dairy Science Association Conference (ADSA) held in Cincinnati, Ohio from 23th to 26th June, 2019.
  3. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2019). Association between hoof lesions and milk production in lactating dairy cows. A paper presented at the 2019 American Dairy Science Association Conference (ADSA) held in Cincinnati, Ohio from 23th to 26th June, 2019.
  4. Omontese, B.O., M. Celestino, D. Paiva, A. Munoz, V. Machado., L. Caixeta. (2019). Effects of a bovine non-specific immune stimulant on health of Jersey and Jersey-cross heifer calves in the first month of life. A paper presented at the 2019 American Dairy Science Association Conference (ADSA) held in Cincinnati, Ohio from 23th to 26th June, 2019.
  5. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2019). Association between hoof lesions and fertility of lactating dairy cows. A paper presented at the 2019 20th International Symposium and 12th International Conference on Lameness in Ruminants held on March 10th to 14th 2019 in Tokyo, Japan.
  6. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2019). Association between lying behavior and hoof lesions in lactating dairy cows. A paper presented at the 2019 20th International Symposium and 12th International Conference on Lameness in Ruminants held on March 10th to 14th 2019 in Tokyo, Japan.
  7. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2019). Association between hoof lesions and milk production in lactating dairy cows. A paper presented at the 2019 20th International Symposium and 12th International Conference on Lameness in Ruminants held on March 10th to 14th 2019 in Tokyo, Japan.
  8. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2018). Association between hoof lesions and fertility of lactating dairy cows. A paper presented at the 2018 American Association of Bovine Practitioners (AABP) held in Phoenix Arizona from 13th to 15th September, 2018.
  9. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2018). Association between hoof lesions and fertility of lactating dairy cows. A paper presented at the Minnesota Diary Health Conference, Continuing Education Centre, Saint Paul, MN, April, 2018.
  10. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2018). Association between hoof lesions and fertility of lactating dairy cows. A paper presented at the 2018 American Dairy Science Association Conference (ADSA) held in Knoxville, Tennessee from 25th to 28th June, 2018.
  11. Omontese, B.O., R. Bellet-Elias, A. Molinero, G. D. Catandi, R. Casagrande, Z. Rodriguez, R. Bisinotto, G. Cramer. (2018). Association between hoof lesions and culling of lactating dairy cows. A paper presented at the 2018 American Dairy Science Association Conference (ADSA) held in Knoxville, Tennessee from 25th to 28th June, 2018.
  12. Omontese, B.O., Santos, A.R., Silva, L.G., Merenda, V.R., and Bisinotto, R.S. (2017). Use of milk progesterone (P4) data to predict non-pregnancy in dairy. A paper presented at the 2017 American Dairy Science Association Conference (ADSA) held in Pittsburgh, Pennsylvania from 25th to 28th June, 2017.
  13. Omontese, B.O., J. Hammes, A.R. Santos, L.G. Silva, and R.S. Bisinotto (2017). Reproductive performance in first lactation Holstein cows according to genetic merit for daughter pregnancy rate. A paper presented at the Minnesota Diary Health Conference, Continuing Education Centre, Saint Paul, MN.
  14. Jordan Sanford, Bobwealth Omontese, Roger Bellet, Grant Stoddard, Rafael Bisinotto and Gerard Cramer. Prevalence of early lactation hoof lesions and its association with reproductive performance of dairy cows. (2017). A paper presented at the 2016 DVM summer research seminar series.
  15. Hammes, J., Omontese, B.O., Silva, L.G., Vilela A. and Bisinotto, R.S. (2016). Reproductive performance according to genetic merit for fertility and strategies to improve insemination rates in anovular dairy cows. A paper presented at the 2016 DVM summer research seminar series.
  16. Omontese, B.O., Adewuyi, A.B., Haruna, M.J., Abubakar, Y.U., Rekwot, P.I. and Voh (Jr), A.A. (2015). Oestrus response of Bunaji (Bos indicus) and Friesian x Bunaji (Bos taurus x Bos indicus) cows treated with cloprostenol. A paper presented at the 52nd Annual Congress of the Nigerian Veterinary Medical Association titled “Providing Holistic Solutions to the Staggering Nigerian Economy: Challenges and Opportunities for Veterinarians” held at the Dr. Obi Wali International Centre, Port Harcourt, from the 16th – 20th November, 2015.
  17. Omontese, B.O., Rekwot, P.I., Ayo, J.O., Nwannenna, A.I., Ate, I.U., Adewuyi, A.B., Haruna, H.J. and Abubakar, Y.U. (2015). Effect of buck stimulus and season on oestrus response and fertility of progesterone treated Sahel goats. A paper presented at the 52nd Annual Congress of the Nigerian Veterinary Medical Association titled “Providing Holistic Solutions to the Staggering Nigerian Economy: Challenges and Opportunities for Veterinarians” held at the Dr. Obi Wali International Centre, Port Harcourt, from the 16th – 20th November, 2015.
  18. Omontese, B.O., Mosimabale, P.M., Rwuaan, J.S., Adewuyi, A.B., Haruna, M.J., Abubakar, Y.U., Rekwot, P.I. and Voh, A.A. (2015). Seasonal changes in ejaculate characteristics of bulls in an AI center in Nigeria. A paper presented at the 52nd Annual Congress of the Nigerian Veterinary Medical Association titled “Providing Holistic Solutions to the Staggering Nigerian Economy: Challenges and Opportunities for Veterinarians” held at the Dr. Obi Wali International Centre, Port Harcourt, from the 16th – 20th November, 2015.
  19. Adeyeye, A.A., Ate, I.U, Lawal, A.I., Adamu, S. and Omontese, B.O. (2015). Attempted termination of pregnancy in a Nigerian breed of sheep: Report of 3 cases. A paper presented at the 6th Pan Commonwealth Veterinary Conference of the CVA and the 27th Congress of the Veterinary Association of Malaysia (PCVC6 and 27VAM) titled “Providing Holistic Solutions to Changing Global Challenges: Threats and Opportunities for Veterinarians” held at Hotel Royale Chulan, Kuala Lumpur, Malaysia, from 23rd – 27th March, 2015.
  20. Omontese, B.O., Adewuyi, A.B., Rekwot, P.I., Ayo, J.O., Ate, I.U., Nwannenna, A.I. (2014). Influence of continuous buck exposure during progestagen treatment and season on oestrus behaviour and fertility of goats in the tropics. A paper presented at the 51TH Annual Congress of the Nigerian Veterinary Medical Association (NVMA); KADA 2014 titled “The Veterinarian in National Development”, held at the Umaru Musa Yaradua Indoor Sports Centre, Murtala Mohammed Square, from the 24th – 28th of November in Kaduna

Class Number

Class Name

Level

FAS 112

Introduction to Animal Bio-Health Science

Undergraduate

FAS 259

Companion Animal Management

Undergraduate

FAS 351

Nutrition and Metabolism

Undergraduate

FAS 424

Animal Models in Biomedical Research

Undergraduate

 

USDA NiFA logo

Active: Principal Investigator

  • Strategies for minimizing stress and improving performance of beef cattle. A USDA funded

proposal.

Submitted: Principal Investigator or Co-PI

  • Student Engagement in Global Food and Nutritional Security (SEGFNS). An 1890 CEIED Global Food and Nutritional Security Initiative – July 2020
  • Strategies for minimizing stress and improving reproductive performance of grass-fed beef cattle- 2020. An Evans Allen Grant proposal.

Previous Support: Principal Investigator or Co-I

  • Effect of different backgrounding systems on fecal microbiome changes and rumination behaviorof beef calves by Megan Webb (PI), Andres Gomez (PI) and Bobwealth Omontese (Co-I).
  • Early microbiome establishment in beef production systems and Host - Microbe Interactions in dairy cattle systems by Andres Gomez (PI), Bobwealth O. Omontese (Co-I) and Megan Webb (Co-I).
  • Effect of different backgrounding systems on growth, carcass characteristics and rumen

microbiome changes of beef calves by Megan Webb (PI), Andres Gomez (PI) and Bobwealth Omontese (Co-I).

  • Effects of the administration of a bovine non-specific immune stimulant around transportation on health and performance of Jersey and Jersey-cross heifer calves in the first 60 days of life by V. S. Machado (CO-PI), L. S. Caixeta (PI) and Omontese, B.O (Co-I).

Grants not awarded: Principal Investigator or Co-I

  • Use of Super SmartFeed system to reduce weaning stress of grass-fed Angus calves

supplemented with Hemp (Cannabis sativa) - 2020. A C.Lock Equipment Grant proposal.

  • Livestock readiness planner Phase II: Addition of individual cattle management record keeping with preventative animal disease methods using a mobile biosecurity planner in Iowa, by Megan Webb (PI), Danielle Bickett-Weddle (PI), Marie Culhane (Co-I), Timothy Goldsmith (Co-I), Shaun Kennedy (Co-I) and Bobwealth Omontese (Co-I). Iowa Beef Industry Council (IBIC) research proposal, Submitted 02/2019. 09/2019 – 08/2020; $160, 147.
  • Use of milk progesterone information to identify anovular cows and predict reproductive

performance in lactating Holstein cows subjected to timed AI by Bobwealth O. Omontese (Co-I) and Rafael S. Bisinotto (PI). Select Sires competitive research grants program – $9,946.

  • Application of milk progesterone information to optimize fertility of lactating cows subjected to first postpartum timed AI. by Bobwealth O. Omontese (PI) and Rafael S. Bisinotto (Co-I). American Association of Bovine Practitioners foundation competitive research grants program 2018 – Submitted. 07/2018 – 06/2019; $15,098.

Grants awarded: Principal Investigator or Co-I

  • Use of milk progesterone information to improve reproductive performance in dairy cows

subjected to timed-AI programs by Rafael S. Bisinotto (PI) and Bobwealth O. Omontese (Co-I). $5,508. Completed.

  • Relationship between early lactation hoof lesions and behavior, inflammatory mediators, and reproductive performance in dairy cows by Rafael Bisinotto (PI), Gerard Cramer (Co-PI), Bobwealth Omontese (Co-I) and Erin Wynands (Co-I). 12/2016 – 12/2019; $179, 761.

 

Omontese-CV

Contact Us

Dr. Bobwealth Omontese at AAMU
Carver Complex Thomas Wing Office A-109
Dr. Bobwealth Omontese
Assistant Professor & Pre-Vet Club Coordinator
bobwealth.omontese@aamu.edu
256-372-4173

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