Beef Heifer Development [0.03%]
肉牛育成母牛的培育
Robert L Larson,Brad J White,Shelie Laflin
Robert L Larson
Jeffrey S Stevenson
Jeffrey S Stevenson
Timed artificial insemination (AI) programs are commonly used in the dairy industry for lactating cows, but less so in replacement heifers. Excellent programs using combinations of prostaglandin F2α and gonadotropin-releasing hormone in pr...
Jeff D Ondrak
Jeff D Ondrak
Bovine trichomoniasis has been recognized as a pathogen of the bovine reproductive tract for nearly 100 years. Although characteristics of the causative organism, Tritrichomonas foetus lend to control and there are examples of disease eradi...
Colin W Palmer
Colin W Palmer
Mature bulls must be fed a balanced ration, vaccinated appropriately, and undergo a breeding soundness evaluation to ensure they meet what is required of a short, but intense breeding season. To be classified as a satisfactory potential bre...
Evaluating Information Obtained from Diagnosis of Pregnancy Status of Beef Herds [0.03%]
牛群妊娠状态诊断信息获取的评估
Robert L Larson,Brad J White
Robert L Larson
Good reproductive efficiency is critical for economic sustainability of beef herds. Standard measurements of reproductive success are the percentage of cows exposed to bulls at the start of the breeding season that are pregnant at midgestat...
Richard M Hopper
Richard M Hopper
Medical and surgical management can be used to restore a bull that has suffered a reproductive tract malady. The economic cost of treatment weighed against the bull's replacement value as well as prognosis for recovery is of prime considera...
Ultrasound Use for Body Composition and Carcass Quality Assessment in Cattle and Lambs [0.03%]
用于评价肉牛和羔羊体组成及胴体质量的超声波技术
Richard Gregory Tait Jr
Richard Gregory Tait Jr
Genetic evaluation for carcass quality traits has evolved over time, in large part because of introduction of new technology, such as ultrasound measures of body composition. Ultrasound-measured body composition traits emulate important car...
Practical Use of Ultrasound Scan in Small Ruminant Medicine and Surgery [0.03%]
小型反刍动物医学和外科手术中超声检查的实用价值
Phil Scott
Phil Scott
Modern portable ultrasound scan machines provide the veterinary clinician with an inexpensive and noninvasive method to further examine sheep on farms, which should take no more than 5 minutes with the results available immediately. Repeat ...
Paul M Fricke,Alessandro Ricci,Julio O Giordano et al.
Paul M Fricke et al.
The first part of this article defines the attributes of the ideal pregnancy test and describes the direct and indirect methods for pregnancy diagnosis in dairy cows that are currently available that have the potential to replace transrecta...