Composition of Milk Produced on Pelleted Hay and Heated Corn
Open Access
- 1 November 1962
- journal article
- research article
- Published by American Dairy Science Association in Journal of Dairy Science
- Vol. 45 (11) , 1336-1342
- https://doi.org/10.3168/jds.s0022-0302(62)89622-2
Abstract
Eight lactating cows were fed rations of (A) long hay plus heated (flaked) corn, (B) long hay plus ground corn, (C) ground pelleted hay plus heated corn, and (D) ground, pelleted hay plus ground corn in a 4 x 4 Latin square with 5 wk periods. Pelleted hay resulted in an average decrease in milk fat of 33% and an increase in protein of 5%. Milk composition was generally erratic on Rations C and D. Milk production was not influenced by changes in milk fat synthesis. Milk fat depression was accompanied by a relative decrease in rumen acetic and an increase in rumen pro-pionic acid. Milk fat composition was altered by a decrease in saturated acids and an increase in unsaturated acids resulting in iodine values > 60. Increased unsaturation did not influence susceptibility to oxidized flavor.This publication has 20 references indexed in Scilit:
- Fatty Acid Composition of Milk. I. Effect of Roughage and Dietary FatJournal of Dairy Science, 1962
- Structure and Synthesis of Milk Fat. II. Fatty Acid Distribution in the Triglycerides of Milk and Other Animal FatsJournal of Dairy Science, 1960
- Relation of Natural Copper in Milk to Incidence of Spontaneous Oxidized FlavorJournal of Dairy Science, 1959
- Studies of the secretion of milk of low fat content by cows on diets low in hay and high in concentrates: VII. The effect of administration of volatile fatty acids to cows giving normal milk and milk of low fat contentJournal of Dairy Research, 1959
- Special Diets for the Production of Low Fat Milk and More Efficient Gains in Body WeightJournal of Dairy Science, 1959
- 592. Studies of the secretion of milk of low fat content by cows on diets low in hay and high in concentrates: VI. The effect on the physical and biochemical processes of the reticulo-rumenJournal of Dairy Research, 1955
- 566. Studies of the secretion of milk of low fat content by cows on diets low in hay and high in concentrates: V. The importance of the type of starch in the concentratesJournal of Dairy Research, 1955
- 557. Studies of the secretion of milk of low fat content by cows on diets low in hay and high in concentrates: IV. The effect of variations in the intake of digestible nutrientsJournal of Dairy Research, 1954
- 545. Studies of the secretion of milk of low fat content by cows on diets low in hay and high in concentrates: II. The effect of the protein content of concentratesJournal of Dairy Research, 1954
- 460. Studies of the secretion of milk of low fat content by cows on diets low in hay and high in concentrates: I. The effect of variations in the amount of hayJournal of Dairy Research, 1952