Zobrazeno 1 - 10
of 32
pro vyhledávání: '"J.W. Wilbur"'
Publikováno v:
Journal of Dairy Science. 33:16-23
Summary The feeding value of similar baled alfalfa hays cured either in the mow or field was studied over a period of 3 yr. Without the aid of heated air the carotene content of the mow-cured hays was variable, depending on the prevailing weather con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20e0da9aedf1d932621c8f16fcf77819
https://doi.org/10.3168/jds.s0022-0302(50)91859-5
https://doi.org/10.3168/jds.s0022-0302(50)91859-5
Publikováno v:
Journal of Dairy Science. 18:795-800
Summary 1. Comparisons were made of the vitamin A value of artificially dried and field cured alfalfa and soybean hay, cut at two different stages of maturity. Studies were also made of the relationship between the vitamin A activity of the hays and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60c14e3bbc684aa418de2666a739cc94
https://doi.org/10.3168/jds.s0022-0302(35)93204-0
https://doi.org/10.3168/jds.s0022-0302(35)93204-0
Publikováno v:
Journal of Dairy Science. 26:921-928
Summary 1. Alfalfa-brome grass silage and corn silage were found to be very similar in feeding value for milk production. 2. The alfalfa-brome grass silage was higher in carotene than the corn silage. This higher carotene content was reflected in hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98e257b3168c75dd48af1a9cb3973e1b
https://doi.org/10.3168/jds.s0022-0302(43)92787-0
https://doi.org/10.3168/jds.s0022-0302(43)92787-0
Publikováno v:
Journal of Dairy Science. 23:765-769
Summary 1.Two feeding experiments have been completed to determine the minimum vitamin A requirements of dairy cows for the production of butter with maximum vitamin A value. 2.Artificially dried alfalfa hay was used as the source of vitamin A (carot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36416195d47c494c9ba48e8a1423cefe
https://doi.org/10.3168/jds.s0022-0302(40)95565-5
https://doi.org/10.3168/jds.s0022-0302(40)95565-5
Publikováno v:
Journal of Dairy Science. 7:421-439
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1b10283197c43a6c343b7ccf3a021d0
https://doi.org/10.3168/jds.s0022-0302(24)94040-9
https://doi.org/10.3168/jds.s0022-0302(24)94040-9
Publikováno v:
Journal of Dairy Science. 16:153-156
Summary 1.Comparisons were made of the vitamin A activity of butters from one group of Ayrshire cows and two groups of Guernsey cows, fed under identical nutritive conditions. 2.The wide variation in color of these butter samples was shown by their c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34652e20974b10d21f044fe02fe75426
https://doi.org/10.3168/jds.s0022-0302(33)93327-5
https://doi.org/10.3168/jds.s0022-0302(33)93327-5
Publikováno v:
Journal of Dairy Science. 27:57-62
Summary 1.Feeding experiments have been completed to determine the minimum vitamin A requirements of dairy cows for the production of butter of maximum vitamin A value. 2.When the source of vitamin A in the ration was vitamin A per se (fish liver oil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::223ddd91c24023b65a15158f73738e6b
https://doi.org/10.3168/jds.s0022-0302(44)92565-8
https://doi.org/10.3168/jds.s0022-0302(44)92565-8
Publikováno v:
Journal of Dairy Science. 20:87-91
Summary 1.Further studies have been made of the vitamin A suppressing factor in soybeans which interferes with the transference of the vitamin A activity of the feed to the butterfat secreted by dairy cows. 2.This factor was found to be distributed i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e08bac5822564b8b4ecac2f3207e3d8
https://doi.org/10.3168/jds.s0022-0302(37)95666-2
https://doi.org/10.3168/jds.s0022-0302(37)95666-2
Publikováno v:
Journal of Dairy Science. 16:355-361
Summary 1. Experiments have been conducted to determine the relative efficiency of various feeds in maintaining the high vitamin A value of summer produced butters. 2. Using samples of pasture produced butter of high vitamin A value as checks, it was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fcca5487caf3562428200049b29c2f4
https://doi.org/10.3168/jds.s0022-0302(33)93349-4
https://doi.org/10.3168/jds.s0022-0302(33)93349-4
Publikováno v:
Journal of Dairy Science. 18:661-665
Summary 1.Dairy cows with a constant level of vitamin A intake, produced butter of lower vitamin A value when soybeans were fed in the grain ration than when linseed oil meal was used. 2.Soybeans apparently suppress the transference of vitamin A from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24eb5d7b61b8b4248f2ae8de0a19a8ee
https://doi.org/10.3168/jds.s0022-0302(35)93188-5
https://doi.org/10.3168/jds.s0022-0302(35)93188-5