Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Anthony J Seykora"'
Autor:
Amber A. Brink, Wanda J. Weber, John D. Lippolis, John B. Cole, Aaron K. Rendahl, Luciano Caixeta, Sandra M. Godden, Anthony J. Seykora, Brian A. Crooker
Publikováno v:
Veterinary Immunology and Immunopathology. 258:110573
Publikováno v:
Journal of Dairy Science. 97:2512-2525
Two-breed crossbreds of Montbéliarde and Holstein (MO × HO) as well as 3-breed crossbreds of Montbéliarde and Jersey/Holstein (MO × JH) were compared with pure Holstein (HO) cows for production, somatic cell score (SCS), fertility, survival to su
Publikováno v:
Journal of Dairy Science. 94:501-506
Jersey (JE)×Holstein (HO) crossbred cows (n=76) were compared with pure HO cows (n=73) for 305-d milk, fat, and protein production, somatic cell score (SCS), clinical mastitis, lifetime production, and body measurements during their first 3 lactatio
Publikováno v:
Journal of Dairy Science. 91:3716-3722
Jersey x Holstein crossbred (JxH) cows (n = 24) were compared with pure Holstein cows (n = 17) for body weight, body condition score, dry matter intake (DMI), and feed efficiency during the first 150 d of first lactation. Cows were housed in the Univ
Autor:
Russell F. Bey, Anthony J Seykora, Jeffrey K. Reneau, Bradley J Heins, Marcia I. Endres, Ralph J. Farnsworth
Publikováno v:
Journal of the American Veterinary Medical Association. 227:1297-1301
Objective—To develop a simple system for scoring hygiene in dairy cattle and determine whether hygiene scores were associated with individual cow somatic cell scores (SCSs). Design—Observational study. Animals—1,191 cows. Procedure—With the a
Publikováno v:
Journal of Dairy Science. 82:2017-2022
Teat end shapes were categorized for 1740 Holstein cows with 2261 lactations in nine herds. Frequencies of teat end shapes were pointed, 7%; pointed disk, 1%; round, 43%; round ring, 16%; round flat, 5%; round disk, 11%; flat, 6%; disk, 10%; and inve
Publikováno v:
Journal of Dairy Science. 82:795-801
Holstein cows were compared for direct and correlated responses to selection for large versus small body size. The divergent selection lines differed for body weight, body dimensions, and birth weight of calves but did not differ for production or ca
Characteristics of Minnesota Dairy Farms that Significantly Increased Milk Production from 1989-1993
Publikováno v:
Journal of Dairy Science. 82:45-51
This study evaluated factors that affected decision making and changes within the Minnesota dairy industry. The 50 herds selected for this study had at least 75 cows registered with the Dairy Herd Improvement Association in 1993 and were selected bas
Publikováno v:
Journal of dairy science. 96(3)
Montbeliarde (MO)-sired crossbred cows (n = 57) were compared with pure Holstein (HO) cows (n = 40) for dry matter intake (DMI), production, hip height, body condition score (BCS), and body weight (BW) during the first 150 d of first lactation. Also,
Publikováno v:
Journal of dairy science. 95(7)
Crossbred cows (n=80) resulting from the use of Jersey (JE) semen on their pure Holstein (HO) dams were compared with pure HO cows (n=77) for body weight, body condition score, fertility, and survival during their first 3 lactations. Cows were in 2 r