PROTEIN AND GLUCOSE VARIATIONS IN ENDOCRINE FLUIDS IN RELATION TO TESTICULAR OUTPUT IN POST PUBERTAL MALE GOATS IN THE TROPICS ⃰
DOI:
https://doi.org/10.33003/jaat.2025.1101.04Keywords:
west african dwarf, sokoto red, brain regions, testes, genotype, bucks.Abstract
The biochemical characteristics of cells and tissues are crucial for comprehending metabolic processes in animal organisms. This study evaluated sperm reserves and cerebral fluids in twelve bucks; six each from the West African Dwarf (WAD) and Sokoto Red (SR) breeds, weighing 7.5±0.61kg and 11.00±1.22kg, respectively. At 8weeks of observatory feeding, their reproductive tracts and brains were excised, homogenization, and biochemical assay conducted via standard procedures. Data was subjected to t-test analysis. There were no variation (p<0.05) in paired testis weight, daily sperm production, and sperm production efficiency between both breeds. Paired testis weight ranged from 6.83±0.51g to 7.53±0.45g, daily sperm production from 0.48±0.05 x 107 to 0.48±0.02 x 107 spermatozoa, and sperm production efficiency from 0.21±0.04 x 107 to 0.18±0.03 x 107 spermatozoa in post-pubertal WAD and SR bucks respectively. However, significant differences (p<0.05) were evident in epididymal regions between the two breeds, particularly in caput, corpus, and cauda reserves. Protein concentration in cerebral fluids varied significantly (p<0.05) across cerebral cortex, medulla oblongata, amygdala, pons varolli, midbrain, and hippocampus regions for both breeds. Total glucose exhibited similarities (p>0.05) within most brain regions, except in the hypothalamus. Interestingly, the hypothalamus region demonstrated analogous protein and glucose values in both breeds, implying a notable correlation (p<0.05) between in-situ hormonal activity in the brain and reproductive tract. In conclusion, this study evaluated the biochemical assay in reproductive tract and brain regions of WAD and SR bucks, emphasizing the significance of understanding these variances in the context of reproductive physiology.
References
Adeloye A. A (1998). The Nigerian Small Ruminant Species. Corporate Office Max. Ilorin, Nigeria. pp. 7-8.
Adeloye A.A and Daramola J. (2004). Effect of by pass protein on water utilization on west African
Dwarf goats. Journal of Agricultural Research and Development. Vol. 3 2004: pp. 75-82
Adejumo, D. O and Egbunike, G. N (2005). Age dependent changes in the total protein concentrations in
the brain regions and hypophyses of the pig. Int. J. Agric.Rural.Dev. 5:19-26.
Amann, R.P.(1970). Sperm production rates. In the testes, vol, pp 443-482 .Eds A.D Johnson, W.R Gomez &n.L Van Demard Academic press. New York.
Amann, R.P and Almquist, J.O. (1962). Reproductive capacity of dairy bulls IV. Effect of unilateral vasectomy and ejaculation frequency on sperm reserves, aspects of epididymal physiology.J.Reprod.Fert.3:206-268.
Bitto, I.I., (2000). Changes in visceral organ weight, endocrine gland weights and some biochemical characteristics of serum in Caprine fetuses during gestation. Proceedings of the 5th Annual Conference of Animal Science Association of Nigeria (Sept. 19-22) Port Harcourt, Nigeria. pp 141-143.
Bitto I.I. and Agam,T. (2012a) Sperm Production Rate, Gonadal and Extragonadal Sperm Reserves In The Sokoto Red (Maradi) Buck in a tropical environment. Proceedings of the International Conference on Animal and Veterinary Sciences (Amsterdam2012). July 25-26, 2012.
Bitto I.I. and Agam,T. (2012b). Changes in Protein concentration of testicular Spermatozoa and fluids during maturation in Sokoto Red bucks in a humid environment. The 15th Asian, Australasian Animal Production (AAAP) Animal Science Congress.26th-30th November, 2012, Thailand.
Bitto, I.I. and S.E.A. Ochogwu (2007). Testicular morphometry, sperm production rate, gonadal and extragonadal sperm reserves in the indigenous West African boar in a lowland tropical environment. Global J. of Pure and Appl. Sci.13 (3): 329-333
Bitto, I and U. D Osayande (2013). Gonadal and extragonadal sperm reserves of Post Pubertal West
African Dwarf and Sokoto red bucks in their native tropical environment. Proceedings of 4th International Conference on Sustainable Animal Agriculture for Developing Countries (SAAD), Lanzhou, China.27th -31st July 2013.pp 87-88.
Bitto, I.I and Adesina, F.A (2012).Comparative characterization of testicular morphometry in the post pubertal West African dwarf and Sokoto red bucks in Ibadan. Proc. of 37th annual conf. of Nig.Soc.Anim.prod. College of animal Sci. University of Makurdi.pp:102-105.
Bitto, I. I (2008). Total protein and cholesterol content in brain regions of rabbits fed pawpaw peel meal. Afri. J. Biomed. Res. Pp 11:73-78.
Bitto I.I. and Shahwan, K. (2008) Semen characteristics and sperm production rate of the West African Dwarf Buck in a lowland Tropica Environment. Trop J.Anim.Sci.10 ( Suppl. ):1-4.
Bitto I I; Egbunike, G.N; Nduka E .U.O and Akusu, M. O (2000).The effect of season on the circulating
testosterone level in the post pubertal West African dwarf buck in its native environment. Tropical Journal of Animal Sciences.3 (1):157-161.
Bitto I.I., A.A.Gumel and J.A.Arubi (2007).Performance carcass yield and total protein concentrations in tubal fluids of female rabbits fed pawpaw peel meal. Ibadan Journal of Agric Research 3(1):37-
Bitto, I.I. and S.O. Ityav (2009). Protein and cholesterol concentrations in brain regions of cockerels fed cassava peel meal. Proceedings, 34th Annual Conference of the Nigerian Society for Animal
Production (March 21-25) at University of Uyo, Uyo, Nigeria. Pp 53-55
Castro, A. C. S, Cardoso, F. M and Franca, L. R (1991). Effect of puberty and sextual development on daily sperm production and epididymal sperm reserves of Piau boars. Animal Reproduction
Science. 25(1):83-90
Devendra, C. and Burns, M. (1983) Goat Production in the Tropics. Common Wealth Agricultural Bureau, Farnham, Royal, England.
Ewuola EO, Egbunike GN (2010). Gonadal, extra-gonadal and sperm production of pubertal rabbits fed dietary fumonisin B1. Anim Reprod Sci; 119:2826
Gall, C.H; steir, C.H and Younan, M (1992). Small ruminants in developing countries. Target for biotechnology symposium of potentials and limitations of biotech for technology for livestock breeding and production in developing countries. Merlense Germany. pp 99-130.
Gomendio M, Malo AF, Garde J, Roldan ER. (2007). Sperm traits and male fertility in natural populations. Reproduction. Jul;134(1):19-29. doi: 10.1530/REP-07-0143. PMID: 17641085.
Ito K, Sawada Y, Ishikuza H, Sugiyama Y, Suzuki H, Iga T and Hanano M (1990). Measurement of
cerebral glucose utilization from brain uptake of [14C] 2-deoxyglucose and [3H] 3-methylglucose in mouse. J Pharmacol Methods. 23(2):129-40.
Jimoh O.A, W. A Oyeyemi, H.O Okin-Aminu and B. F Oyeyemi (2021). Reproductive characteristics, semen quality, seminal oxidative status, steroid hormones, sperm production efficiency of rabbits fed herbal supplements. Theriogenology. Pp 168 (2021) 41-49
Kvidera, S.K, E.A. Horst, M. Abuajamieh, E.J. Mayorga, M.V.S. Fernandez, L.H. Baumgard (2017).
Glucose requirements of an activated immune system in lactating Holstein cows. J. Dairy Sci., 100: 2360-2374.
Magistretti PJ, Pellerin L, Rothman DL, Shulman RG (1999). Energy on demand. Science. 283(5401):496–497.
Ngere, L.O., Adu, I.F. and Mam, L. (1979) Report of Small Ruminant Breeding Subcommittee. NAPRI Bulletin 1, Ahmadu Bello University, Shika-Zaria.
Osayande U. D., Bitto I. I., Okewale, S.A & Idahor, K. O. (2017). Sperm Storage Capacity and Total
Protein Concentration in the Testes of Bucks in the Native Tropical Environment. Journal of Veterinary Medicine and Animal health. Vol. 9(7), pp. 154-158. http://:10.5897/JVMAH2017.0582.
Raju Bharathi and Philip E Cryer (2005). Maintenance of the postabsorptive plasma glucose concentration:insulin or insulin plus glucagon? Am J Physiol Endocrinol Metab. 289(2):E181-6
RamukhithiI F.V., K.A. NephaweII; K.C. Lehloenya; M.M. Seshoka; T. Jonker; A. Kotze; T.C. Chokoe; T.L. Nedambale. (2018). Characterization of seminal plasma constituents of unimproved indigenous and Tankwa goats. South African Journal of Animal Science 2018, 48 (5):943-953
Statistical Analysis System Institute. (2012). SAS User’s Guide. SAS Institute Cary, N.C
Taylor, R. E (1998). Scientific Farm animal production. An Introduction to Animal science. 6th edition, upper saddle river (prentice Hall).
Statistical Analysis System Institute. (2012). SAS User’s Guide. SAS Institute Cary, N.C
Tucek, S., Ricn, Y., and Dotezal, V (1990) Advances in cholinergic research relevant to problems of aging. Neurology and neurobiology. Aging brain and dementia. New trends in Diagnosis and therapy. Battistine and Gerstenbrand (eds) 54: 203-214.
Weichselbaum JE (1946). An accurate and rapid method for the determination of proteins in small amounts of blood or plasma. Am. J. Clin. Pathol. 16: 40.
Zamuner, F, A.W.N. Cameron , E.K. Carpenter , B.J. Leury , K. DiGiacomo (2020). Endocrine and metabolic responses to glucose, insulin, and adrenocorticotropin infusions in early-lactation dairy goats of high and low milk yield. Journal of Dairy Science. Volume 103, Issue 12:12045-12058
Zhao, F. Q., Glimm, D. R. & Kennelly, J. J. (1993). Distribution of mammalian facilitative glucose transporter messenger RNA in bovine tissues. International Journal of Biochemistry. 25:18971903.
Ziel, F. H., Venkatesan, N. & Davidson, M. B. (1988). Glucose transport is rate limiting for skeletal muscle glucose metabolism in normal and STZ-induced diabetic rats. Diabetes 37, 885-890.
Ugwu, S.O.C (2009). Relationship between scrotal circumference and in situ testicular measurements and sperm reserves in the West African bucks. African Journal of Biotechnology.Vol 8 (7),pp 13541357.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 FUDMA Journal of Agriculture and Agricultural Technology

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.