Results 121 to 130 of about 329,940 (300)
Trinta e nove touros provenientes de propriedades de pecuária leiteira (n=9) e de pecuária de corte (n=30), situadas na região do Médio Paraíba, Rio de Janeiro (RJ), foram investigados para a presença de Campylobacter fetus e Tritrichomonas foetus.
Flávio Soares da Rocha+7 more
doaj
Standardized indicators of α- and β-diversity (𝒚′𝒌𝒎) calculated by DNA microsatellites (STR) in samples of bulls of Red Scandinavian (RED, n = 29) and Holstein (HOL, n = 45) breeds (each with three sub-samples) were analyzed using one-two- and ...
V. M. Kuznetsov
doaj +1 more source
Miscellaneous front pages, Bull. Amer. Math. Soc., Volume 46, Number 2 (1940) [PDF]
openalex +1 more source
Animal breeding in organic farming:Discussion paper [PDF]
It is uncertain whether animals which have been bred for conventional production are capable of optimum performance in organic conditions. In conventional agriculture there is a movement towards maximum control of production conditions in order to ...
Baars, Nauta+4 more
core
FEED ADDITIVE FROM WASTE BREWING PRODUCTION WITH PROBIOTIC FOR FATTENING STEERS
The article presents the results of the use of the drug "Synbiotic" for feed additives produced using the waste of the brewing industry and intended for fattening bulls.
M. . Velyamov+8 more
doaj
The objectives of this experiment with Hereford (Hf) and Charolais (Ch) bulls offered grass silage-based diets were to determine the effects on performance, carcass traits and meat quality of the proportion of concentrate in the diet, and the inclusion ...
M. Pesonen+6 more
semanticscholar +1 more source
A New Method for counting Live and Dead Bull Spermatozoa [PDF]
A. D. Bangham, J. L. Hancock
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Estimating the Economic Value of Specific Characteristics Associated with Angus Bulls Sold at Auction [PDF]
The genetic traits of a purebred bull convey the reproductive and economic value to buyers. This study examines and compares the value of actual production weights (birth, weaning, and yearling weight), production expected progeny differences (EPDs ...
Dhuyvetter, Kevin C.+3 more
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Quantification of channel planform change on the lower Rangitikei River, New Zealand, 1949-2007: response to management? [PDF]
The Rangitikei River, a large gravel‐bed wandering river located in the North Island of New Zealand, has outstanding scenic characteristics, recreational, fisheries and wildlife habitat features.
Fuller, Ian C, Richardson, Jane M.
core
Serum vitamin E as a potential biomarker of sperm velocity in crossbred beef bulls
Sperm motility is a key determinant of fertility in bulls, with velocity parameters serving as primary indicators of reproductive potential. However, the influence of systemic micronutrients on semen quality remains unclear.
Alberto Benito Diaz+6 more
doaj +1 more source