Effect of Fish Meal and Expeller-Processed Soybean Meal Fed to Dairy Cows Receiving Bovine Somatotropin (Sometribove)

S. Calsamiglia, D. D. Hongerholt, Brian A Crooker, Marshall D Stern, G. F. Hartnell, R. L. Hintz

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Forty-eight multiparous cows were blocked by calving date and milk production and assigned randomly to a TMR formulated to contain 68 or 55% of dietary CP as ruminally degradable CP. Diets contained corn silage, alfalfa haylage, and ground corn. Supplemental CP was soybean meal for the control diet or a combination of soybean meal, expeller-processed soybean meal, and fish meal for the low degradable protein diet. Two 10-wk phases began on d 31 ± 3 (phase 1) and 110 ± 7 postpartum [phase 2, all cows received subcutaneous implantations of pelleted (400 mg) bST (sometribove) every 14 d]. Dietary energy, CP, ruminally degradable CP, NDF, and ADF were similar between dietary treatments. Production of FCM increased in response to bST but was not affected by dietary treatment. Cows fed the expeller-processed soybean meal and fish meal TMR produced milk that contained less milk fat in phase 1 and less milk protein content in both phases. The DMI, BW, and body condition scores were not affected by diet. Hematocrit, plasma urea N, albumin, total protein, creatinine, glucose, and serum insulin were similar between dietary treatments. Replacing soybean meal with expeller processed soybean meal and fish meal did not affect ruminal degradation of protein or milk production but decreased milk fat and protein contents.

Original languageEnglish (US)
Pages (from-to)2454-2462
Number of pages9
JournalJournal of Dairy Science
Volume75
Issue number9
DOIs
StatePublished - Jan 1 1992

Fingerprint

fish meal
Soybeans
somatotropin
soybean meal
Meals
dairy cows
Milk Proteins
cows
milk fat
milk production
Fishes
Milk
diet
Diet
haylage
Zea mays
protein degradation
dairy protein
Fats
corn silage

Keywords

  • ES
  • FM
  • SBM
  • expeller soybean meal
  • expeller-processed soybean meal
  • fish meal
  • fish meal
  • lactation
  • somatotropin
  • soybean meal

Cite this

Effect of Fish Meal and Expeller-Processed Soybean Meal Fed to Dairy Cows Receiving Bovine Somatotropin (Sometribove). / Calsamiglia, S.; Hongerholt, D. D.; Crooker, Brian A; Stern, Marshall D; Hartnell, G. F.; Hintz, R. L.

In: Journal of Dairy Science, Vol. 75, No. 9, 01.01.1992, p. 2454-2462.

Research output: Contribution to journalArticle

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