Results 11 to 20 of about 6,503,587 (307)
Greenhouse Gas Emissions from Calf- and Yearling-Fed Beef Production Systems, With and Without the Use of Growth Promotants [PDF]
Animals, 2012 A spring calving herd consisting of about 350 beef cows, 14–16 breeding bulls, 60 replacement heifers and 112 steers were used to compare the whole-farm GHG emissions among calf-fed vs.
Erasmus Okine +5 more
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Veterinary Clinics of North America: Food Animal Practice, 2003 Cow-calf production occurs in all 50 states over varied resource bases and under vastly different environmental conditions. Multiple breeds exist and management styles and objectives are as numerous as the number of cow-calf producers. There is not one area of the country, one breed of cattle, or one management style that is most profitable for ...
Feuz, D., Umberger, W.
openaire +4 more sources
Influences on calf productivity during five decades of cow-calf grazing of northern prairie
AnimalUnderstanding calf weight gains from grazing rangeland ecosystems requires long-term data to disentangle influences of biophysical and animal factors, and management.
J.G.N. Irisarri +4 more
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Can a snow structure model estimate snow characteristics relevant to reindeer husbandry?
Rangifer, 2014 Snow affects foraging conditions of reindeer e.g. by increasing the energy expenditures for moving and digging work or, in contrast, by making access of arboreal lichen easier.
Sirpa Rasmus +2 more
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Toxins, 2021 Grazing endophyte-infected, toxic tall fescue reduces cow/calf production; therefore, this study examines alternate strategies such as use of novel endophyte fescue varieties during late gestation and early lactation or genetic selection of resistant ...
Sarah A. Wilbanks +5 more
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Rangifer, 2003 Barren ground caribou (Rangifer tarandus) were reintroduced to the Nushagak Peninsula, Alaska in February of 1988 after an absence of more than 100 years. Since reintroduction, herd growth and population dynamics have been monitored closely. At this time,
Gail H. Collins +3 more
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Phenotypic effects of calving ease on the subsequent fertility and milk production of dam and calf in UK Holstein-Friesian heifers [PDF]
, 2011 The effect of calving ease on the fertility and production performance of both dam and calf was studied in approximately 50,000 and 10,000 UK Holstein-Friesian heifers and heifer calves, respectively. The first objective of this study was to estimate the
Coffey, M.P. +14 more
core +1 more source
Acta Scientiarum: Animal Sciences, 2018 This study was developed to evaluate productive efficiency during the lactation period of cows with predominant Nellore genetic composition based on their body size. Cows were divided into the following categories: light (≤ 316 kg), moderate (≥ 317 and ≤
Gustavo Duarte Farias +6 more
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Rangifer, 1998 The muskox colony at the Large Animal Research Station, started in 1979, totaled 22 individuals before calving in 1988. Between 1988 -1994 cows of breeding age have been maintained on either a high plane (HP) or low plane (LP) of nutrition, and as far as
R. G. White +3 more
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Age-specific fecundity of the Beverly herd of barren-ground caribou
Rangifer, 1990 The age-specific fecundity of the Beverly herd of barren-ground caribou (Rangifer tarandus groenlandicus) was monitored each winter from 1979-80 through 1986-87.
Donald C. Thomas, Samuel J. Barry
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