The objective of the present study was to estimate genetic parameters for scrotal circumference bulls beef breeds in Czech Republic. used database years 1996-2020 comprised information on measurements from 22 065 19 pure and crossbred animals Beef Simmental, Charolais, Hereford breeds. After adjustments, contained 16 404 records. To test influence systematic fixed effects, GLM/SAS procedure usi...

Mechanisms of testicular thermoregulation, the relationship of scrotal, testicular vascular cone (TVC), and testicular morphology with thermoregulatory capability, and their effects on semen quality and sperm production were studied in 20 Bos indicus, 28 crossbred, and 26 Bos taurus bulls. The ratio of testicular artery length and volume to testicular volume were larger (P<0.05) in B. indicus a...

KOYUNCU, M. and S. OZIS ALTINCEKIC, 2013. Testicular development and body growth in prepubertal ram lambs of Kivircik, Karacabey Merino and Tahirova in South Marmara region of Turkey. Bulg. J. Agric. Sci., 19: 152157 An experiment was conducted to compare testicular diameter (TD), testicular length (TL), scrotal circumference (SC), scrotal length (SL) and body weight (BW) gain of 150 ram lambs ...

Received: Revised: Accepted: April 22, 2013 July 30, 2013 July 31, 2013 The present study was aimed to investigate the association of scrotal circumference (SC) with sperm production and semen quality in Sahiwal bulls. Mature semen donor bulls (n=76), 3 to 5 years old, were divided into three groups according to SC: GI, GII, and GIII with 28-30, 31-35, and >35 cm, respectively. Semen was collec...

This study was carried out to determine the impact of type of protein supplementation to the ration on pubertal characteristics of male goat kids. Eighteen crossbred (Nubian × Saanen) weaned male goat kids were distributed to 3 ration groups. Group I (n=6) was kept on a ration supplemented with ground nut cakes, group II (n=6) on a ration supplemented with sesame cakes and group II (n=6) on a r...

We sampled 119 Nelore cattle (Bos indicus), 69 harboring B. indicus mtDNA plus 50 carrying Bos taurus mtDNA, to estimate the frequencies of putative mtDNA single nucleotide polymorphisms (SNPs) and investigate their association with Nelore weight and scrotal circumference estimated breeding values (EBVs). The PCR restriction fragment length polymorphism (PCR-RFLP) method was used to detect poly...

The objective was to determine the effects of a recombinant fusion protein anti-GnRH vaccine on testicular development, feedlot performance, and carcass quality of beef bulls. Crossbred beef bulls (n = 58, average weight 306 kg, 9 mo of age), were randomly allocated to two groups and received either an anti-GnRH vaccine (GnRH) or placebo (Control) by intramuscular injection on d 0, 56, and 112....