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Full-Text Articles in Life Sciences
Effect Of Duration Of Performance Test On Variance Component Estimates For Lamb Growth Rate, G. D. Snowder, L. Dale Van Vleck
Effect Of Duration Of Performance Test On Variance Component Estimates For Lamb Growth Rate, G. D. Snowder, L. Dale Van Vleck
Department of Animal Science: Faculty Publications
The objective was to determine the effect of periods of adjustment and duration of performance test on estimating genetic variance parameters for ADG. Variance components were estimated from ADG data collected from 1978 to 1984 on a total of 1,047 Targhee ewe and ram lambs at the U.S. Sheep Experiment Station (Dubois, ID). Across all years, lambs averaged 84 ± 9 d of age and 25 ± 5.4 kg of weight when placed on test. Lambs were provided ad libitum access to a commercial pellet of barley grain and ground alfalfa for 14 wk. Every 2 wk, ADG was recorded. …
Heritability And Repeatability Of Sexual Performance Scores Of Rams, G. D. Snowder, J. N. Stellflug, L. Dale Van Vleck
Heritability And Repeatability Of Sexual Performance Scores Of Rams, G. D. Snowder, J. N. Stellflug, L. Dale Van Vleck
Department of Animal Science: Faculty Publications
Sexual performance has been subjectively measured with a libido test during screening of rams before public sale and breeding at the U.S. Sheep Experiment Station from 1990 to 2000. The objective of this study was to determine whether sexual performance was genetically influenced. Sexual performance scores ranged from 1 to 6 with scores increasing from sexually inactive to highly sexually active in the presence of estrous ewes. The overall average score was 3.5 ± 0.02. Records from four breeds (Columbia, n = 807; Polypay, n = 1,668; Rambouillet, n = 1,208; and Targhee, n = 1,002) were combined into one …
Ec02-1550 Nebraska Management Guide For Arthropod Pests Of Livestock And Horses, John B. Campbell
Ec02-1550 Nebraska Management Guide For Arthropod Pests Of Livestock And Horses, John B. Campbell
University of Nebraska-Lincoln Extension: Historical Materials
Understanding the differences in insecticide formulations is important to selecting the right one for the job. This publication discusses the different insecticides and ways of treating your animals. They include: dusts, emulsifiable concentrates, emulsifiable livestock insecticides, flowables (thick fluids mixed with water), soluble powders, wettable powders, and water dispersible liquids. Insecticides listed in this publication are considered safe when used according to label directions.