Výsledky vyhledávání - "J. P. F. Darisse"

COMPARISON OF THE HEIFER REPRODUCTION TRAITS OF THE DAUGHTERS OF SEVERAL SIRE GROUPS

Autor: J. P. Chesnais, A.J. Lee, A.J. McAllister, J.A. Vesely, G.L. Roy, J. P. F. Darisse, T.R. Batra, J. A. B. Emsley, K.A. Winter

Publikováno v: Canadian Journal of Animal Science. 63:269-278

Ages at first heat and first conception, age and weight at first calving, number of services per conception, and incidence of difficult calving and retained placenta were obtained from 853 heifers of the National Cooperative Dairy Cattle Breeding pro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db3c36d8eb54e3eec662c8c301c80c8a
https://doi.org/10.4141/cjas83-034

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DIFFERENCES BETWEEN SIRE GROUPS IN BODY MEASUREMENTS AND BODY WEIGHT CHANGES OF LACTATING COWS

Autor: T.R. Batra, J.A. Vesely, J. P. F. Darisse, C.Y. Lin, G.L. Roy, K.A. Winter, A.J. Lee, A.J. McAllister

Publikováno v: Canadian Journal of Animal Science. 63:27-37

Body weights and measurements of 694 first, 519 second and 329 third lactation cows in five Research Branch herds of the National Cooperative Dairy Cattle Breeding Project of Agriculture Canada were studied. The A line cows were daughters of U.S., Ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d22dc13be159f96de69e2ec30160667e
https://doi.org/10.4141/cjas83-004

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HEIFER GROWTH IN SEVERAL STRAINS OF HOLSTEINS AND AYRSHIRES AND IN PROGENY OF AYRSHIRE COWS MATED TO BROW SWISS AND NORWEGIAN RED BULLS

Autor: A.J. Lee, T.R. Batra, K.A. Winter, J.A. Vesely, J. P. F. Darisse, G.L. Roy, A. E. Emsley, A.J. McAllister

Publikováno v: Canadian Journal of Animal Science. 62:1063-1078

Body weights and measurements were compared among several genetic groups from the 496 Holstein-based H line heifers and 344 Ayrshire-based A line heifers. Differences among herds (Charlottetown, P.E.I., Lennoxville and Normandin, Que.; Ottawa, Ont.,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5105500cb44d5bb26e4f9f502a38b55
https://doi.org/10.4141/cjas82-126

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COMPARISON AMONG SIRE GROUPS IN CONCEPTION RATE, GESTATION LENGTH AND CALVING EASE OF THEIR MATES

Autor: A.J. McAllister, K.A. Winter, A.J. Lee, T.R. Batra, G.L. Roy, J. P. F. Darisse, J.A. Vesely

Publikováno v: Canadian Journal of Animal Science. 62:709-716

Data on conception rate, gestation length, incidence of calving difficulty and retained placenta were obtained from 269 heifers and 525 cows as mates of the pureline foundation phase sires of the National Cooperative Dairy Cattle Breeding Project. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3dc92b4790b683b387158f44d9af0129
https://doi.org/10.4141/cjas82-086

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EFFECTS OF DATES OF SEEDING AND LEVELS OF N FERTILIZATION ON YIELDS, CHEMICAL COMPOSITION AND IN VITRO DIGESTIBILITY OF FORAGE KALE

Autor: E. Donefer, G. Pelletier, J. P. F. Darisse

Publikováno v: Canadian Journal of Plant Science. 56:63-70

Forage kale (Brassica oleracea L.) was seeded on three dates and fertilized at different levels of N as NH4NO3 for 3 yr. The highest dry matter (DM) yield was obtained with the earliest date of seeding and with levels of N fertilization of 120 kg/ha.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::262335aae0cb1879d6c677997c7486a6
https://doi.org/10.4141/cjps76-011

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