Zobrazeno 1 - 10
of 81
pro vyhledávání: '"R.W. Touchberry"'
Autor:
R.W. Touchberry
Publikováno v:
Journal of dairy science. 75(2)
A crossbreeding project involving the Holstein and Guernsey breeds was conducted at the Illinois Agricultural Experiment Station from 1949 to 1969. All surviving male calves, 989 of the 1061 born, were sold within 2 or 3 d following birth. All surviv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10484743fd8f94b2ad31c08c5dfefb44
https://pubmed.ncbi.nlm.nih.gov/1560149
https://pubmed.ncbi.nlm.nih.gov/1560149
Autor:
J.M. White, G.A. Muck, C.F. Foreman, D.L. Bath, F.W. Bodyfeld, W.F. Collins, G.H. Schmidt, D.B. Emmons, E.W. Custer, R.W. Touchberry
Publikováno v:
Journal of Dairy Science. 61:516-520
The Nominating Committees of the American Dairy Science Association have selected the following slate for national officers: for Vice President of ADSA from the Production Division, D. L. Bath, California, and C. F. Foreman, Iowa; for Director of ADS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91be5ba0ddb39d7134f6028b104ffdd9
https://doi.org/10.3168/jds.s0022-0302(78)83629-7
https://doi.org/10.3168/jds.s0022-0302(78)83629-7
Autor:
T.R. Batra, R.W. Touchberry
Publikováno v:
Journal of Dairy Science. 57:323-327
Data consisted of birth weights and gestation periods of 478 live, single-birth calves born in generations 4 and 5 of the Illinois crossbreeding experiment. The mathematical model included effects of breed groups, sires within breed groups, parity, s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60f8257f44e4c22661d89a6314e72907
https://doi.org/10.3168/jds.s0022-0302(74)84885-x
https://doi.org/10.3168/jds.s0022-0302(74)84885-x
Publikováno v:
Journal of Dairy Science. 62:1922-1931
To measure direct response to single trait selection for milk yield and correlated response in health problems, two homologous base populations were formed by pairing 66 Holstein females by sire. Base populations and descendants were managed identica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::250f3335e54000f97c404b4ed357b06f
https://doi.org/10.3168/jds.s0022-0302(79)83524-9
https://doi.org/10.3168/jds.s0022-0302(79)83524-9
Publikováno v:
Journal of Dairy Science. 62:1932-1940
Health data were compiled for 293 Holstein cows by 80 sires over 9 yr. Supplemental labor and veterinary expense were recorded specific to a cow on a daily basis. Each entry was assigned to one of six health functions: mammary, locomotion, respiratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8e609e266a84b9cfab932de78249f0a
https://doi.org/10.3168/jds.s0022-0302(79)83525-0
https://doi.org/10.3168/jds.s0022-0302(79)83525-0
Autor:
R.W. Touchberry, T.R. Batra
Publikováno v:
Journal of Dairy Science. 57:842-848
Body weights and five linear body measurements of purebred Holstein and Guernsey females and their crossbreds in generation 3 were analyzed and compared. The two crossbred groups in generation 3 were 5 8 Holstein- 3 8 Guernsey and 3 8 Holstein-5/8 Gu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83feca02fbb56b8218381b7185b0b7c1
https://doi.org/10.3168/jds.s0022-0302(74)84973-8
https://doi.org/10.3168/jds.s0022-0302(74)84973-8
Autor:
Ben Bereskin, R.W. Touchberry
Publikováno v:
Journal of Dairy Science. 49:659-667
The actual first-lactation yields of milk, milk fat, FCM, and per cent milk fat of 379 cows in the Illinois crossbreeding experiment were analyzed. Holstein and Guernsey bulls were bred to foundation cows of both breeds to produce Generation 1 crossb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4df08feeb38ab420622d4b184911ec31
https://doi.org/10.3168/jds.s0022-0302(66)87926-2
https://doi.org/10.3168/jds.s0022-0302(66)87926-2
Autor:
K.A. Tabler, R.W. Touchberry
Publikováno v:
Journal of Dairy Science. 42:123-126
Summary Estimates of heritability, phenotypic and genetic correlations for milk and fat yield and fat per cent were obtained from the single lactation records of 20,024 daughterdam pairs of the Holstein-Friesian breed. The estimates of these paramete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e37958d2228646bfd1542c04e6712506
https://doi.org/10.3168/jds.s0022-0302(59)90534-x
https://doi.org/10.3168/jds.s0022-0302(59)90534-x
Autor:
C.R. Legault, R.W. Touchberry
Publikováno v:
Journal of Dairy Science. 45:1226-1233
Summary The data included in this study were taken from the University of Illinois dairy herd and consisted of 1,234 birth weights representing the five major breeds of dairy cattle. A comparison of the confidence intervals demonstrates significant b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76e75d7963137de141a676de6d25c432
https://doi.org/10.3168/jds.s0022-0302(62)89600-3
https://doi.org/10.3168/jds.s0022-0302(62)89600-3
Publikováno v:
Journal of Dairy Science. 42:598-606
Summary The data for this study consisted of 2,063 gestations representing the five major breeds of dairy cattle in the University of Illinois herd. These data were analyzed to determine the heritability and the variance of the length of the gestatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b63c73997e7e86f78cef7b9f58a4ceaf
https://doi.org/10.3168/jds.s0022-0302(59)90625-3
https://doi.org/10.3168/jds.s0022-0302(59)90625-3