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Effects Of A High-Protein Corn Product On Nutrient Digestibility And Production Responses In Mid-Lactation Dairy Cows, W. E. Brown, B. J. Bradford
Effects Of A High-Protein Corn Product On Nutrient Digestibility And Production Responses In Mid-Lactation Dairy Cows, W. E. Brown, B. J. Bradford
Kansas Agricultural Experiment Station Research Reports
An experiment was conducted to assess the effects of a high-protein corn product (56% crude protein; CP) relative to other sources of protein on the lactation performance of dairy cows. Twenty-four Holstein cows (1,367 ± 105 lb of body weight, 111 ± 34 days in milk, 2.28 ± 0.46 lactations; mean ± standard deviation) were randomly assigned to treatment sequence in a replicated 4 × 4 Latin square design balanced for carryover effects. Cows were individually fed one of four diets with a different protein concentrate source during each 28-day period, including: soybean meal (SBM), high-protein corn product (HPCP), soybean …
Gestation Length And Overall Performance In The Subsequent Lactation Of Dairy Cows Conceiving To Holstein, Jersey, Or Angus Semen: An Observational Study, A. L. Scanavez, L. G. Mendonça
Gestation Length And Overall Performance In The Subsequent Lactation Of Dairy Cows Conceiving To Holstein, Jersey, Or Angus Semen: An Observational Study, A. L. Scanavez, L. G. Mendonça
Kansas Agricultural Experiment Station Research Reports
Breeding strategies adopted by commercial dairy herds have evolved in recent years by incorporating the use of several breeds, including beef sires. Results of such strategies on offspring performance have been studied but reports on the effects on dam’s overall performance after calving are still lacking. The goal of this observational study was to investigate the associations between sire breed of previous conception, gestation length, and postpartum performance of dairy cows. Records from Holstein and crossbred cows from a Kansas commercial herd were extracted. Data pertaining to cows that conceived from Holstein, Jersey, or Angus sires and initiated second lactation …