Zobrazeno 1 - 10
of 22
pro vyhledávání: '"E.R. Rader"'
Publikováno v:
Animal Blood Groups and Biochemical Genetics. 1:247-252
Summary Polymorphisms of Holstein heifers from ten state-owned dairy herds were compared with their birth weights and four measures of body size taken at 3, 6, and 12 months of age, and three months after first calving. The eleven polymorphic systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b1414451e230ddaa13df25d491acbd0
https://doi.org/10.1111/j.1365-2052.1970.tb01168.x
https://doi.org/10.1111/j.1365-2052.1970.tb01168.x
Publikováno v:
Journal of Dairy Science. 62:613-620
Six inbred lines of Holstein cattle were developed and reciprocally crossed to assess the importance of heterotic effects for yield and reproductive traits. Overall both yield and reproductive performance declined with inbreeding, but effects varied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31ddce8a00472780cd3f3f23ea3a986f
https://doi.org/10.3168/jds.s0022-0302(79)83297-x
https://doi.org/10.3168/jds.s0022-0302(79)83297-x
Publikováno v:
Journal of Dairy Science. 53:1779-1782
Influences of additive and heterosis effects upon body weight estimated from forechest girth and several other body measurements of linebred and linecross Holstein heifers were investigated. The numbers of heifers measured at various ages ranged from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa6ecdceb02724df3ce5640c13c71ef5
https://doi.org/10.3168/jds.s0022-0302(70)86478-5
https://doi.org/10.3168/jds.s0022-0302(70)86478-5
Publikováno v:
Journal of Dairy Science. 56:805-811
Average indexes describing selection for productive merit were estimated from 7,079 records in six herds cooperating with The Ohio North Central-2 project. The average indexes included various combinations of yield information and first lactation typ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9137d2bb9146d016e7c152a90d25f234
https://doi.org/10.3168/jds.s0022-0302(73)85253-1
https://doi.org/10.3168/jds.s0022-0302(73)85253-1
Autor:
T.M. Ludwick, E.R. Rader
Publikováno v:
Journal of Dairy Science. 51:74-77
For a group of cows which did not return in estrus by approximately 25 days following service, sizes of ovaries, corpora lutea, and follicles were evaluated, on a scale of 1-5, by rectal palpation at 8-18 and again at 23-30 days post-service. Changes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7170c55bd35ccdea78120ecd1bd180c5
https://doi.org/10.3168/jds.s0022-0302(68)86923-1
https://doi.org/10.3168/jds.s0022-0302(68)86923-1
Publikováno v:
Theriogenology. 13(1)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4151a2c9b789b6b5966946ce2e95ccb1
https://pubmed.ncbi.nlm.nih.gov/16725466
https://pubmed.ncbi.nlm.nih.gov/16725466
Publikováno v:
Journal of dairy science. 55(4)
Ages at which connection of the mammary glands (front and rear) occurred were obtained for approximately 1,800 Holstein-Friesian calves. Three evaluations of udder type were made for each animal at 3 months after first calving and 3 months after matu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99e5edb13fc4e544d0b4b2a5538f1284
https://pubmed.ncbi.nlm.nih.gov/5063020
https://pubmed.ncbi.nlm.nih.gov/5063020
Publikováno v:
Journal of dairy science. 53(11)
Glutamic-oxaloacetic and glutamic-pyruvic transaminase activities and protein-bound iodine were measured in 748 jugular vein plasma samples taken monthly from 69 Holstein cows throughout one lactation and the corresponding gestation period A negative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fb0d1010ea3045c719dbffc088dbdbe
https://pubmed.ncbi.nlm.nih.gov/4098628
https://pubmed.ncbi.nlm.nih.gov/4098628
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