1/31/2024 0 Comments What is dredging sheep![]() ![]() ![]() For flocks in colder climates with mid-to late-fall breeding schedules, ram shearing should be timed such that 2-4 cm of fleece has grown by the time breeding begins. Careful shearing of the scrotal wool should be performed for breeds and individuals with greater scrotal wool cover. Shearing rams at this time should be considered to limit heat stress. Rams that are excessively conditioned are prone to heat stress, as are rams in full fleece. Late summer heat can significantly impair ram fertility because spermatogenesis (the creation of sperm) occurs in the testes at a temperature that is slightly below core body temperature. In other words, on the first day of the breeding season, the ram will be utilizing semen that was produced 7 or more weeks previously. During this period of time, the sheep producer can conduct a few fairly simple management practices to ensure that the ram and ewe flock are in optimal physical condition for breeding.Ĭreation of sperm in rams requires approximately 7 weeks to complete sperm is then stored in the epididymis, an organ adjacent to the testis. Although it is traditionally a relatively quiet period for the sheep producer, the pre-breeding period involves multiple physiologic processes in the ram and ewe that can significantly impact fertility during breeding season, and therefore can subsequently impact the size and uniformity of the lamb flock. The pre-breeding period is defined as the 8-10 week period prior to the first day that rams are turned out with the ewes. Important notes for both spring and fall breeding! (Previously published online with Veterinary Extension through Colorado State University) Van Metre, DVM, DACVIM Extension Veterinarian, Colorado State University ![]()
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