Effect of pre-pubertal growth rate of Sohagi ram lambs on some physiological parameters and sexual behavioral patterns at puberty
Andrade AKG, Soares AT, Freitas FF, Silva SV, Peña-Alfaro CE, Batista AM, Guerra MMP. Testicular and epididymal ultrasonography in Santa Inês lambs raised in Brazil. Anim Reprod. 2018;11(2):110-8.
Clemente N, Orihuela A, Flores-Pérez I, Aguirre V, Valencia J. Reproductive behaviour of Saint Croix and Suffolk rams at medium latitudes (19ºN) during long days while being exposed to Suffolk ewes in seasonal anestrus. Arch Med Vet. 2013;45(1):67-70.
Eissa MM, El-Wakeel A, Ahmed MH, Zahran SM, EL-Rewany AM. Effect of breed of ram on reproductive performance of Barki ewes and their lambs. Alex Sci Exch J. 2013;34(2):222-7.
Elaref MY, Solouma GM, Abdel-latef DA. Investigating the influence of non-genetic factors on birth weight and growth performance, pre and post weaning, of Sohagi lambs under intensive production system. Egypt J. Sheep Goat Sci. 2020;15(2):1-11.
Elhammali NSA, Alqurashi AM, Tajedin Ibrahim M, Elsheikh AS. Puberty of crossbred male goat kids. J Am Sci. 2013;9(4):95-9.
Elmaz Ö, Cirit Ü, Demir H. Relationship of testicular development with age, body weight, semen characteristics and testosterone in Kivircik ram lambs. S Afr J Anim Sci. 2007;37(4):269-74.
El-Shahat KH, Khaled NF, El-Far FI. Influence of growth hormone on growth and onset of puberty of Rahmani ewe lamb. Asian Pac J Reprod. 2014;3(3):224-30.
El-Zelaky OA, Khalifa EI, Mohamed AH, Bahera KM, Hussein AM. Productive and reproductive performance of Rahmani male lambs fed rations containing Jatropha cake. Egypt J Sheep Goats Sci. 2011;6(2):1-10.
Galal S, Abdel-Rasoul F, Anous MR, Shaat I. On-station characterization of small ruminant breeds in Egypt. Characterization of small ruminant breeds in West Asia and North Africa. Aleppo, Syria: International Center for Agricultural Research in the Dry Areas; 2002. 78 p.
Hafez ESE, Hafez B. Reproduction in farm animals. Philadelphia: Lippincott Williams & Wilkins; 2013. Chapter 19, Reproductive behavior; p. 291-306.
Ibarra D, Laborde D, Van Lier E. Repeatability and relationship with field mating performance of a serving capacity pen test in rams. Small Rumin Res. 2000;37(1-2):165-9.
Khalifa EI, Ahmed ME, Hafez YH, El-Zolaky OA, Bahera KM, Abido AA. Age at puberty and fertility of Rahmani sheep fed on biological inoculated corn silage. Ann Agric Sci. 2013;58(2):163-72.
Koyuncu M, Kara Uzun S, Ozis S, Duru S. Development of testicular dimensions and size, and their relationship to age and body weight in growing Kivircik (Western Thrace) ram lambs. Czech J Anim Sci. 2011;50(6):243-8.
Kridli RT, Abdullah AY, Obeidat BS, Qudsieh RI, Titi HH, Awawdeh MS. Seasonal variation in sexual performance of Awassi rams. Anim Reprod. 2007;4(1-2):38-41.
Kridli RT, Abdullah AY, Shaker MM, Al-Momani A. Age at puberty and some biological parameters of awassi and its first crosses with charollais and romanov rams. Ital J Anim Sci. 2006;5(2):193-202.
Maksimović N, Hristov S, Stankovic B, Petrovic MP, Mekic C, Ruzic-Muslic D, Caro-Petrović V. Investigation of serum testosterone level, scrotal circumference, body mass, semen characteristics, and their correlations in developing MIS lambs. Turk J Vet Anim Sci. 2016;40(1):53-9.
Martinez JM, Dominguez B, Barrientos M, Canseco R, Ortega E, Lamothe C. Biometry and testicular growth influenced nutrition on prepubertal pelibuey lambs. J. Anim. Feed Res. 2012;2:314-21.
Mohamed MY, Gomaa AA, Saba FE, Ibrahim EM, El Badawy AA, Giziry AA. Growth performance of Ossimi lambs fed rice straw treated with ZAD enzymesor effective microorganisms. Egypt J Sheep Goats Sci. 2016;11(3):100-15.
Mostafa AS, Farghal MM. A study on the effect of age, breed and season on sexual behaviour, testosterone concentrations and scrotal circumference in Egyptian rams. J Vet Med Res. 2019;26(1):91-100.
Moulla F, El-Bouyahiaoui R, Nazih R, Abdelaziz N, Zerrouki N, Iguer-Ouada M. Characterization of the onset of puberty in Tazegzawt lambs, an endangered Algerian sheep: body weight, thoracic perimeter, testicular growth, and seminal parameters. Vet World. 2018;11(7):889-94.
Mukasa-Mugerwa E, Ezaz Z. Relationship of testicular growth and size to age, body weight and onset of puberty in Menz ram lambs. Theriogenology. 1992;38(5):979-88.
National Research Council. Nutrient requirements of small ruminants. Washington: National Academy of Sciences; 2007.
Othman OEM, Payet-Duprat N, Harkat S, Laoun A, Maftah A, Lafri M, Da Silva A. Sheep diversity of five Egyptian breeds: genetic proximity revealed between desert breeds. Small Rumin Res. 2016;144:346-52.
Simitzis PE, Deligeorgis SG, Bizelis JA. Effect of breed and age on sexual behaviour of rams. Theriogenology. 2006;65(8):1480-91.
Yılmaz A. Change in age testis characteristics and serume testosterone concentration based on in Norduz male lambs. Tarim Bilim Derg. 2006;12(3):277-84.
Zarkawi M, Al-Daker AB. Body weight and reproductive parameters in fast and weak growing Awassi ram lambs during different age stage. Trop Anim Health Prod. 2016;48(1):223-7.
Zohry AH, Ouda SAH. Upper Egypt: management of high water consumption crops by intensification. In: Ouda SAH, Zohry AE, editors. Management of climate induced drought and water scarcity in Egypt. Cham: Springer Publishing; 2016. p. 63-76.