Feeding Value of Dry Corn, Ensiled High Moisture Corn, and Propionic Acid Treated High Moisture Corn Fed with Hay or Haylage for Lactating Dairy Cows

Two trials with growing-finishing steers and one trial with lactating dairy cows were conducted to evaluate the feeding value of high moisture (HM) corn preserved with 1.5% propionic acid on a wet weight basis. Combining all treatments, acid-treated HM corn was 9% more efficient (P < 0.05) for weight gains than dry corn. Ensiled HM corn also tended to be utilized more efficiently by steers than dry corn when no fat was included in the ration. However, in the second steer trial, acid-treated reconstituted HM corn was comparable in performance with dry corn. Addition of 4% tallow tended to improve feed efficiency by 5–6% with dry or acid-treated HM corn, but to decrease feed efficiency with ensiled HM corn. No significant differences were observed in forage dry matter intake, milk production, or milk composition with cows fed treated HM corn compared with dry corn. However, a trend for a slight reduction in milk fat percent occurred with the treated corn ration.

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Milk production and ruminal digestion in lactating dairy cows grazing temperate pastures and supplemented with dry cracked corn or high moisture corn

Animal Feed Science and Technology ◽

10.1016/s0377-8401(01)00206-1 ◽

2001 ◽

Vol 91 (3-4) ◽

pp. 183-195 ◽

Cited By ~ 6

Author(s):

H.J Alvarez ◽

F.J Santini ◽

D.H Rearte ◽

J.C Elizalde

Keyword(s):

Dairy Cows ◽

Milk Production ◽

High Moisture ◽

Lactating Dairy Cows ◽

Temperate Pastures ◽

Ruminal Digestion ◽

High Moisture Corn

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FEEDING VALUE FOR DAIRY CATTLE AND PIGS OF HIGH MOISTURE CORN PRESERVED WITH PROPIONIC ACID

Canadian Journal of Animal Science ◽

10.4141/cjas70-067 ◽

1970 ◽

Vol 50 (3) ◽

pp. 483-489 ◽

Cited By ~ 20

Author(s):

G. M. JONES ◽

E. DONEFER ◽

J. I. ELLIOT

Keyword(s):

Propionic Acid ◽

Feed Efficiency ◽

Milk Fat ◽

Animal Health ◽

Finishing Pigs ◽

High Moisture ◽

Dairy Heifers ◽

Lactating Dairy Cows ◽

Feeding Value ◽

The Relationship

High moisture (HM) shelled corn (66.7% dry matter), preserved with 1.5% propionic acid, was fed as a part of the ration to 12 lactating dairy cows, seven growing dairy heifers, and 20 growing-finishing pigs. HM ensiled, shelled corn was fed to similar groups as a comparison. In addition, a third group of 12 cows received a commercial dairy supplement. Fat-corrected milk yield, persistency of milk production, milk fat and protein percentage, and rate of gain by dairy heifers were not significantly different between rations when HM corn was fed at 4.5 kg/animal/day. Average daily gains by pigs whose ration comprised 70% treated grain corn versus 70% ensiled grain corn were 0.70 and 0.63 kg (P < 0.01). A nonsignificant improvement in feed efficiency was observed by heifers and pigs fed treated grain corn. Mold counts were 0 and 1200 colonies/g for treated and ensiled grain corn. There was no adverse effect of propionic acid treatment upon animal health or performance. The relationship between dietary propionic acid and synthesis of milk fat, milk protein and tissue protein are discussed.

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