The B Vitamin Requirements of the Horse

1944 ◽  
Vol 3 (2) ◽  
pp. 166-174 ◽  
Author(s):  
P. B. Pearson ◽  
M. K. Sheybani ◽  
H. Schmidt
1970 ◽  
Vol 36 (11) ◽  
pp. 1140-1146 ◽  
Author(s):  
Chinkichi OGINO ◽  
Nagahisa UKI ◽  
Takeshi WATANABE ◽  
Zenzo IIDA ◽  
Kazuo ANDO

1970 ◽  
Vol 36 (7) ◽  
pp. 734-740 ◽  
Author(s):  
Chinkichi OGINO ◽  
Takeshi WATANABE ◽  
Jun KAKINO ◽  
Noriyuki IWANAGA ◽  
Masanori MIZUNO

1964 ◽  
Vol 57 (4) ◽  
pp. 427-430 ◽  
Author(s):  
Milton T. Ouye ◽  
Erma S. Vanderzant

1961 ◽  
Vol 39 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Claude Ritchot ◽  
J. E. McFarlane

The importance of 10 B vitamins for growth and survival of the nymphs of Acheta domesticus (L.) was tested by single omission. Thiamine, pyridoxine, nicotinic acid, pantothenic acid, choline, and biotin were found to be essential, the omission of any one of them resulting in very poor growth and in little or no survival to the adult stage. The absence of riboflavin or inositol retarded growth significantly, but a large percentage of the nymphs still reached the adult stage. The lack of folic acid resulted in a significantly longer nymphal stage and in greater mortality towards the end of that period. Only the omission of p-aminobenzoic acid had no significant effect on the nymphs.


1968 ◽  
Vol 14 (5) ◽  
pp. 537-543 ◽  
Author(s):  
Paul R. Burkholder ◽  
Seymour Lewis

Twenty-four different patterns of single and multiple requirements for various B vitamins were demonstrated for 665 cultures of marine bacteria grown in a basal synthetic seawater medium enriched with phosphate, vitamin-free casamino acids, dextrose, and succinate. Among 114 thiamine-requiring isolates, 55 were unable to make the pyrimidine moiety, 19 required thiazole, 13 needed both thiazole and the pyrimidine moiety, while 27 organisms required thiamine or thiamine pyrophosphate for growth. Among 142 biotin requirers, 22 had to be supplied with biotin, 60 could use either biotin or biocytin, 54 were able to respond to either biotin, biocytin, or desthiobiotin. Only six cultures could not use biocytin, and required either biotin or desthiobiotin. Various responses of vitamin B12 requiring cultures indicated special types of specificity for cyanocobalamin and analogues of this vitamin. Computer-sorting at the 0.66 similarity coefficient breaking point arranged a group of 104 isolates into eight clusters. The isolates having biotin or thiamine requirements, single or in combination with other vitamin needs, appeared to be randomly scattered through the eight clusters.


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