Feedlot performance and carcass characteristics of ram lambs immunized against recombinant LHRH fusion proteins at 10 weeks of age

Small Ruminant Research

Volumn 50, Issue 1-2, 2003, Pages 213-218

  Ülker, Hasan ^a   Gökdal, Özdal ^a   Aygün, Turgut ^a   Karakuş, Ferda ^a   DeAvila, David M ^b   Reeves, Jerry J ^b  

^a YUZUNCU YIL UNIVERSITY   (Turkey)

^b WASHINGTON STATE UNIVERSITY   (United States)

Author keywords

Carcass traits; Feedlot performance; Immunocastration; Ram lambs; Recombinant protein

Indexed keywords

ANIMALIA; OVIS ARIES;

EID: 0043241720     PISSN: 09214488     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0921-4488(03)00181-0     Document Type: Article

References (19)

1. Adams, T.E., Daley, C.A., Adams, B.M., Sakurai, H., 1993. Testis function and feedlot performance of bulls actively immunized against gonadotropin releasing hormone: effect of implants containing progesterone and estradiol benzoate. J. Anim. Sci. 71, 811-817.
2. Adams, T.E., Daley, C.A., Adams, B.M., Sakuari, H., 1996. Testis function and feedlot performance of bulls actively immunized against GnRH: effect of age at immunization. J. Anim. Sci. 74, 950-958.
3. Aissat, D., Sosa, J.M., de Avila, D.M., Bertrand, K.P., Reeves, J.J., 2002. Endocrine, growth, and carcass characteristics of bulls immunized against luteinizing hormone-releasing hormone fusion proteins. J. Anim. Sci. 80, 2209-2213.
4. Brown, B.W., Mariner, P.E., Carroll, P.A., Holland, E.J., Paull, D.R., Hoskinson, R.M., Rigby, R.D.G., 1994. Immunization of sheep against GnRH early in life: effects on reproductive function and hormones in rams. J. Reprod. Fertil. 101, 15-21.
5. Colomer-Rocher, F., Morand-Fehr, P., Kirton, A.H., 1987. Standard methods and procedures for goat carcass evaluation, jointing and tissue separation. Livest. Prod. Sci. 17, 149-157.
6. Cook, R.B., Popp, J.D., Kastelic, J.P., Robbins, S., Harland, R.., 2000. The effects of active immunization against GnRH on testicular development, feedlot performance, and carcass characteristics of beef bulls. J. Anim. Sci. 78, 2778-2783.
7. D'Occhio, M.J., Aspden, W.J., Trigg, T.E., 2001. Sustained testicular artrophy in bulls actively immunized against GnRH: potential to carcass characteristics. Anim. Reprod. Sci. 66, 47-58.
8. Daley, D.A., Adams, T.E., Daley, C.A., Patton, W.R., Evens, J.L., 1995. Effects of immunocastration on growth, carcass characteristics and reproductive development in ram lambs. Sheep Goat Res. J. 11, 31-34.
9. Finnerty, M., Enright, W.J., Prendivelle, D.J., Spicer, L.J., Roche, J.F., 1996. The effect of different levels of gonadotropin releasing hormone antibody titers on plasma hormone concentrations, sexual and aggressive behavior, testis size and performance of bulls. Anim. Sci. 63, 51-63.
10. Kiyma, Z., Adams, T.E., Hess, B.W., Riley, M.L., Murdoch, W.J., Moss, G.E., 2000. Gonadal function, sexual behavior, feedlot performance, and carcass traits of ram lambs actively immunized against GnRH. J. Anim. Sci. 78, 2237-2243.
11. Quesnell, M.M., Zhang, Y., De Avila, D.M., Bertrand, K.P., Reeves, J.J., 2000. Immunization of male mice with luteinizing hormone-releasing hormone fusion proteins reduces testicular and accessory sex gland function. Biol. Reprod. 63, 347-353.
12. Sad, S.H., Gupta, M.H., Talwar, G.P., Raghupaty, R., 1991. Carrier-induced suppression of antibody response to a 'self' hapten. Immunology 74, 223-227.
13. SAS. 1998. PC SAS User's Guide. Statistics SAS Institute Inc., Cary, NC, USA.
14. Schanbacher, B.D., 1982. Responses of ram lambs to active immunization against testoslerone and luteinizing hormone releasing hormone. Am. J. Physiol. 242, 201-208.
15. Schanbacher, B.D., Crouse, J.D., Ferrel, C.L., 1980. Testosterone influences on growth, performance, carcass characteristics and composition of young market lambs. J. Anim. Sci. 51, 685-692.
16. Sosa, J.M., Zhang, Y., De Avila, D.M., Bertrand, K.P., Reeves, J.J., 2000. Technical note: recombinant LHRH fusion protein suppresses estrus in heifers. J. Anim. Sci. 78, 1310-1312.
17. Ülker, H., Kanter, M., Gökdal, Ö., De Avila, D.M., Reeves, J.J., 2001. The effects of recombinant LHRH fusion proteins on testicular development and histology in ram lambs. Deutsche Tierärztliche Wochenschrift 108, 459-464.
18. Ülker, H., Gökdal, Ö., Temur, C., Budaǧ, C., Oto, M., De Avila, D.M., Reeves, J.J., 2002. The effects of immunization against LHRH on body growth and carcass characteristics in Karakaş ram lambs. Small Rumin. Res. 45, 273-278.
19. Zhang, Y., Rozell, T.G., De Avila, D.M., Bertrand, K.P., Reeves, J.J., 1999. Development of recombinant ovalbumin-luteinizing hormone releasing hormone as a potential sterilization vaccine. Vaccine 17, 2185-2191.