Field-cured and Field-baled Alfalfa Hay versus Artificially Dried and Chopped and Pelleted Alfalfa Hays as a Source of Carotene and Roughage for Guernsey and Holstein Calves
Open Access
- 1 February 1952
- journal article
- research article
- Published by American Dairy Science Association in Journal of Dairy Science
- Vol. 35 (2), 98-105
- https://doi.org/10.3168/jds.s0022-0302(52)93681-3
Abstract
A continuation of similiar study reported previously (Jour. Dairy Sci. 34: 124-135. 1951). 9 Guernsey and 9 Holstein calves were used. Both types of artificially dried hay were eaten in greater quantities accompanied by greater increases in liveweight and heart girth, higher levels of blood plasma carotene and Vit. A, and greater Vit. A stores than the field cured alfalfa hay. The dehydrated hays, used in these studies on unlimited feeding, provided adequate carotene to meet the calf''s requirements from 7 to 105 days of age. The field-cured hays did not.This publication has 5 references indexed in Scilit:
- A Comparison of U.S. NO. 2 Field-Cured Field-Baled Alfalfa Hay with Artificially Dried and ground and Pelleted Alfalfa Hays as a source of Carotene and Roughage for Holstein CalvesJournal of Dairy Science, 1951
- Effects of Vitamin A and Carotene Intake on Depletion Time of Young Dairy CalvesJournal of Dairy Science, 1949
- Carotene Requirements for Guernsey and Jersey Calves as Determined by Spinal Fluid PressureJournal of Dairy Science, 1948
- Effects of High Vitamin A Intake on Milk and Fat Yields and on Vitamin A Constituents in Milk, Blood, and Livers of Dairy CowsJournal of Dairy Science, 1947
- Vitamin A Requirements in CalvesJournal of Nutrition, 1945