Results 11 to 20 of about 6,197,856 (306)

Greenhouse Gas Emissions from Calf- and Yearling-Fed Beef Production Systems, With and Without the Use of Growth Promotants

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, Karen Haugen-Kozyra, Óscar López-Campos, John Basarab, Jennifer Aalhus, Vern Baron   +5 more
doaj   +2 more sources

Effects of Tall Fescue Endophyte Type and Dopamine Receptor D2 Genotype on Cow-Calf Performance during Late Gestation and Early Lactation

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, Susan Maggie Justice, Thomas West, James L. Klotz, John G. Andrae, Susan K. Duckett   +5 more
doaj   +1 more source

Calving of the experimental reindeer herd in Kaamanen during 1970 - 85

Rangifer, 1986
Calving and calf production were studied in an experimental reindeer (Rangifer tarandus L) herd in Inari, Kaamanen (69°10'N) in northern Finland. Most of the calving took place between May 10 and 29; 50% of the calves were born up to 22.5.
Eija Eloranta, Mauri Nieminen
doaj   +1 more source

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., Mrode, R; id_orcid, S.A.E. Eaglen, J.A. Woolliams, R. Mrode, Mrode, R., Wall, E; id_orcid, Wall, E., Woolliams, JA, Woolliams, J.A., Coffey, MP, E. Wall, Eaglen, SAE, M.P. Coffey, Eaglen, Sophie   +14 more
core   +1 more source

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, Jouko Kumpula, Jukka Siitari   +2 more
doaj   +1 more source

Population structure and dynamics in captive muskoxen at the Large Animal Research Station, 1988-1994

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, J. E. Rowell, J. E. Blake, W. Hauer   +3 more
doaj   +1 more source

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
doaj   +1 more source

Calf health from birth to weaning. I. General aspects of disease prevention [PDF]

, 2011
peer-reviewedCalfhood diseases have a major impact on the economic viability of cattle operations. This is the first in a three part review series on calf health from birth to weaning, focusing on preventive measures.
Mee, John F, Lorenz Ingrid, Mee John F, More Simon J, Ingrid Lorenz, John F Mee, Mee, John F., Earley Bernadette, Lorenz, Ingrid, More, Simon J, Bernadette Earley, Earley, Bernadette, Simon J More, et al.   +13 more
core   +1 more source

Population demography of high arctic caribou on Banks and Melville Islands

Rangifer, 2003
Caribou numbers, Rangifer tarandus pearyi, (excluding calves) on Banks Island were estimated (standard error of the estimate) at 1005 (SE±133) in 1992, 709 (SE±128) in 1994 and 436 (SE±71) in 1998; no paired estimates were different (Ptwo-year-old ...
Nicholas C. Larter, John A. Nagy
doaj   +1 more source

Calf health from birth to weaning. III. Housing and management of calf pneumonia [PDF]

, 2011
peer-reviewedCalfhood diseases have a major impact on the economic viability of cattle operations. A three part review series has been developed focusing on calf health from birth to weaning.
Gilmore, J. (John), Kennedy, Emer, Hogan Ian, Lorenz Ingrid, Gilmore, John, Ian Hogan, More Simon J, Ingrid Lorenz, Hogan, Ian, Earley Bernadette, Lorenz, Ingrid, Gilmore John, Kennedy Emer, More, Simon J, Bernadette Earley, John Gilmore, Earley, Bernadette, Simon J More, Emer Kennedy, et al.   +19 more
core   +1 more source