M cKENZIE and Berliner (i937) have shown that under Missouri conditions rams decline in semen production during summer months, or when exposed to high environmental temperatures during other seasons. The deleterious effects of the summer season upon semen quality and pro. duction of rams has been found by Green (I94o), Phillips et al. {I943) and upon that of dairy bulls by Erb, Andrews, and Hil...

Most of FPGAs have Configurable Logic Blocks (CLBs) to implement combinational and sequential circuits and block RAMs to implement Random Access Memories (RAMs) and Read Only Memories (ROMs). Circuit design that minimizes the number of clock cycles is easy if we use asynchronous read operations. However, most of FPGAs support synchronous read operations, but do not support asynchronous read ope...

Ewe sexual preference depends on several factors; ram attractiveness is important. This work was carried out in the first week of September 2020 and repeated November 2021. For trial two rams were treated with 0.5 mg naloxone im for 15 days, control saline injections. Sexual studied synchronized ewes (n 0 12) displaying estrus at end treatment rams. Ewe’s proceptive receptive behavior noted. Pl...

We evaluated the efficiency of selection for body weight in a cooperative village breeding program for Menz sheep of Ethiopia under smallholder farming system. The design of the program involved organizing villagers in a cooperative breeding group to implement selective breeding of their sheep. The program was jump-started through a one-time provision of elite rams from a central nucleus flock,...

Melatonin (MEL) was evaluated for effects on LH, prolactin (PRL) and fertility in spring (Exp. 1, 2) and summer (Exp. 3 to 5). In Exp. 1, 17 ovariectomized ewes bearing estradiol implants were fed 3 mg MEL or vehicle for 44 d beginning May 1. Melatonin decreased (P less than .001) PRL levels but had no effect on LH secretion and response to GnRH. In Exp. 2, 12 ewes each received a 40-d MEL ear ...

The effects of feeding different levels of dried layer litter as a protein source on live weight, testicular weight, gonadal and epididymal sperm reserves of Yankasa rams was investigated in a 98day study. Twenty healthy Yankasa rams with clinically normal genitalia were divided randomly into 4 groups (A, B, C and D) of 5 rams each. Diets containing 12.11% CP, 14.96% CP and 17.94% CP were formu...

Aberrant DNA methylation plays important roles in tumorigenesis, and the nongenotoxic rodent tumor promoter phenobarbital (PB) alters methylation patterns to a greater extent in liver tumor susceptible as compared to resistant mice (Watson and Goodman, 2002). Unique hepatic regions of altered DNA methylation (RAMs) were identified in sensitive B6C3F1, as compared to resistant C57BL/6, mice at 2...

Aim This study was conducted to determine the effect of seasonal variations on testosterone serum concentration, body weight, scrotal circumference, and some sperm parameters in rams living in a semi-arid region of eastern part of Algeria. Materials and Methods Blood samples were taken monthly from eight Ouled Djellal rams, aged between 3 and 4 years, in the Technical Institute of Breeding "I...

Formalised risk assessment models (RAMs) for venous thromboembolism (VTE) using weighted and scored variables have only recently been widely incorporated into international antithrombotic guidelines. Scored and weighted VTE RAMs have advantages over a simplified group-specific VTE risk approach, with the potential to allow more tailored strategies for thromboprophylaxis and an improved estimati...

Two glucose clamp techniques were performed for 6 h starting 2 h before the initiation of feeding to investigate the effect of dietary propionate supplementation on insulin responsiveness to glucose and tissue responsiveness to insulin in relation to feeding in rams. The rams were fed alfalfa hay without (Cont diet) and with 10 mmol.kg BW-1.d-1 of calcium propionate (Prop diet) for 4 weeks in r...