Vatsalya Vatsalya
Department of Veterinary Science, Fort Valley State University, Fort Valley, Georgia, 31030-4313, USA
Kashmiri L. Arora
Department of Veterinary Science, Fort Valley State University, Fort Valley, Georgia, 31030-4313, USA
ABSTRACT
The Japanese quail is very a valuable animal model for research in a variety of biological disciplines. The purpose of this study was to characterize and interrelate age-dependent testicular parameters with various blood constituents: blood glucose, plasma proteins and packed cell volume that are developing concurrently in the growing bird. Another objective of the study was to identify selective physio-anatomical markers for predicting the testicular growth and the onset of sexual maturity. Male Japanese quail hatchlings were raised in temperature controlled brooders for up to 3 weeks of age under a constant light and then shifted to hanging cages in an air conditioned room set at ~73° F under a 14L: 10D lighting system and ad libitum access to feed and water. Starting d8, a group of 8-10 birds of uniform size and weight were selected randomly at 4-day intervals up to d52 of age for the project. The birds were weighed and blood sampled using the brachial vein and Blood Glucose (BGL), Total Plasma Proteins (PP) and Packed Cell Volume (PCV) levels were measured prior to euthanization. The testes were removed and measured for weight, length, width and Volume (VOL). All the testicular measurements were then correlated with age and body weight. The left testes were larger than the right testes and their differences were evident at d36 of age. Testicular measurements also reflected two distinct growth surges at d28, d32 and d36 of age. Combined Testes Weight (CTW) and Combined Testes Volume (CTV) revealed a strong positive correlation with PCV and PP and a negative correlation with Blood Glucose Level (BGL). Accordingly, these measurements could serve as reliable markers of growth rate and sexual maturation in male Japanese quail.
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How to cite this article
Vatsalya Vatsalya and Kashmiri L. Arora, 2012. Allometric Growth of Testes in Relation to Age, Body Weight and
Selected Blood Parameters in Male Japanese Quail (Coturnix japonica). International Journal of Poultry Science, 11: 251-258.
DOI: 10.3923/ijps.2012.251.258
URL: https://scialert.net/abstract/?doi=ijps.2012.251.258
DOI: 10.3923/ijps.2012.251.258
URL: https://scialert.net/abstract/?doi=ijps.2012.251.258
REFERENCES
- Bennett, C.H., 1947. Relation between size and age of the gonads in the fowl from hatching date to sexual maturity. Poult. Sci., 26: 99-104.
CrossRefDirect Link - Bhardwaj, S.K. and N. Anushi, 2006. Effect of photoperiod length on body mass and testicular growth in the house sparrow (Passer domesticus) and brahminy myna (Sturnus pagodarum). Reprod. Nutr. Dev., 46: 69-76.
CrossRefPubMedDirect Link - Biswas, A., O.S. Ranganatha, J. Mohan and K.V.H. Sastry, 2007. Relationship of cloacal gland with testes, testosterone and fertility in different lines of male Japanese quail. Anim. Reprod. Sci., 97: 94-102.
CrossRefPubMedDirect Link - Burke, W.H., 1973. Testicular asymmetry in the Turkey. Poult. Sci., 52: 1652-1654.
CrossRefDirect Link - Cecil, H.C. and M.R. Bakst, 1991. Correlations of organ weights, hematocrit and testosterone with sexual maturity of the male Turkey. Poult. Sci., 70: 1252-1257.
CrossRefDirect Link - Chaturvedi, C.M., R. Bhatt and D. Phillips, 1993. Photoperiodism in Japanese quail (Coturnix coturnix japonica) with special reference to relative refractoriness. Indian J. Exp. Biol., 31: 417-421.
PubMedDirect Link - Cornblath, M., R. Schwartz, A. Aynsley-Green and J.K. Loyd, 1990. Hypoglycemia in infancy: The need for a rational definition. Pediatrics, 85: 834-837.
Direct Link - Denk, A.G. and B. Kampenaers, 2006. Testosterone and testes size in mallards (Anas platyrhynchos). J. Orinthol., 147: 436-440.
CrossRef - Deviche, P., C. Breuner and M. Orchinik, 2001. Testosterone, corticosterone and photoperiod interact to regulate plasma levels of binding globulin and free steroid hormone in dark-eyed juncos, Junco hyemalis. Gen. Comp. Endocrinol., 122: 67-77.
CrossRef - Farner, D.S. and A.C. Wilson, 1957. A quantitative examination of testicular growth in the white-crowned sparrow. Biol. Bull., 113: 254-267.
Direct Link - Follett, B.K. and S.L. Maung, 1978. Rate of testicular maturation, in relation to gonadotrophin and testosterone levels, in quail exposed to various artificial photoperiods and to natural daylengths. J. Endocrinol., 78: 276-289.
CrossRefDirect Link - Garamszegi, L.Z., M. Eens, S. Hurtrez-Bousses and A.P. Moller, 2005. Testosterone, testes size and mating success in birds: A comparative study. Hormones Behav., 47: 389-409.
CrossRef - Gavin, A., M. Konarzewski, I. Wallis and R. McDevitt, 1998. Relationship between metabolic rate and organ size in two strains of chicken. Br. Poult. Sci., 39: S51-S52.
PubMed - Gebhardt-Henrich, S.G., P. Heeb, H. Richner and F. Tripet, 1998. Does loss of mass during breeding correlate with reproductive success? A study on Blue Tits Parus caeruleus. Ibis, 140: 210-213.
CrossRef - Huss, D., G. Poynter and R. Lansford, 2008. Japanese quail (Coturnix japonica) as a laboratory animal model. Lab. Anim., 37: 513-519.
PubMed - Hocking, P.M., 1992. Bilateral testicular asymmetry and supernumerary testes in the domestic fowl (Gallus domesticus). Br. Poult. Sci., 33: 455-460.
CrossRef - Lamosova, D., M. Macajova, M. Zeman, S. Mozes and D. Jezova, 2003. Effect of in ovo leptin administration on the development of Japanese quail. Physiol. Res., 52: 201-209.
PubMed - Marin, R.H. and D.G. Satterlee, 2004. Cloacal gland and testes development in male Japanese quail selected for divergent adrenocortical responsiveness. Poult. Sci., 83: 1028-1034.
Direct Link - Mather, F.B. and W.O. Wilson, 1964. Post-natal testicular development in Japanese quail (Coturnix coturnix japonica). Poult. Sci., 43: 860-864.
CrossRefDirect Link - McFarland, L.Z., R.L. Warner, W.O. Wilson and F.B. Mather, 1968. The cloacal gland complex of the Japanese quail. Cell. Mol. Life Sci., 24: 941-943.
CrossRef - Mirand, E.A., A.S. Gordon and J. Wenig, 1965. Mechanism of testosterone action in erythropoiesis. Nat., 296: 270-272.
CrossRefDirect Link - Mohri, M., K. Sharifi and S. Eidi, 2007. Hematology and serum biochemistry of Holstein dairy calves: Age-related changes and comparison with blood composition in adults. Res. Vet. Sci., 83: 30-39.
PubMed - Moller, A.P., 1994. Directional selection on directional asymmetry: Testes size and secondary sexual characters in birds. Proc. R. Soc. London B, 258: 147-151.
CrossRefDirect Link - Noirault, J., J.P. Brillard and M.R. Bakst, 2006. Effect of various photoperiods on testicular weight, weekly sperm output and plasma levels of LH and testosterone over the reproductive season in male turkeys. Theriogenology, 66: 851-859.
CrossRef - Oishi, T. and T. Konishi, 1983. Variations in the photoperiodic cloacal response of Japanese quail: Association with testes weight and feather color. Gen. Comp. Endocrinol., 50: 1-10.
CrossRef - Ottinger, M.A. and H.J. Brinkley, 1979. Testosterone and sex related physical characteristics during the maturation of the male Japanese quail (Coturnix coturnix japonica). Biol. Reprod., 20: 905-909.
PubMedDirect Link - Poulin, R. and S. Morand, 2000. Testes size, body size and male-male competition in acanthocephalan parasites. J. Zool., 250: 551-558.
CrossRef - Roark, A.M., K.A. Bjorndal, A.B. Bolten and C. Leeuwenburgh, 2009. Biochemical indices as correlates of recent growth in juvenile green turtles (Chelonia mydas). J. Exp. Mar. Biol. Ecol., 376: 59-67.
CrossRef - Sachs, B.D., 1969. Photoperiodic control of reproductive behavior and physiology of the male Japanese quail (Coturnix coturnix japonica). Hormones Behav., 1: 7-24.
CrossRef - Sedqyar, M., Q. Weng, G. Watanabe, M.M.M. Kandiel and S. Takahashi et al., 2008. Secretion of inhibin in male Japanese quail (Coturnix japonica) from one week of age to sexual maturity. J. Reprod. Dev., 54: 100-106.
CrossRefDirect Link - Siopes, T.D. and W.O. Wilson, 1975. The cloacal gland an external indicator of testicular development in coturnix. Poult. Sci., 54: 1225-1229.
PubMed - Smedley, J.V., S.A. Bailey, R.W. Perry and C.M. Rourke, 2002. Methods for predicting sexual maturity in male cynomolgus macaques on the basis of age, body weight and histologic evaluation of the testes. Contemp. Top. Lab. Anim. Sci., 41: 18-20.
PubMedDirect Link - Spencer, R.P., S.S. Sagel and S.M. Garn, 1968. Age changes in five parameters of metacarpal growth. Invest. Radiol., 3: 27-34.
PubMed - Tilgar, V., P. Kilgas, A. Viitak and S.J. Reynolds, 2008. The rate of bone mineralization in birds is directly related to alkaline phosphatase activity. Physiol. Biochem. Zool., 81: 106-111.
PubMed - Vatsalya, V. and K.L. Arora, 2011. Association between body weight growth and selected physiological parameters in male Japanese quail (Coturnrix japonica). Int. J. Poult. Sci., 10: 680-684.
CrossRefDirect Link - Tyler, N.C. and R.M. Gous, 2009. The effect of age at photo-stimulation of male broiler breeders on testes growth and the attainment of sexual maturity. South Afr. J. Anim. Sci., 39: 169-175.
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