Browsing by Author "Dunham, J.R."

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Browsing by Author "Dunham, J.R."

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  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1985)
    A comparison was made of the AM-PM production testing program with the traditional DHI program during 13 test periods of 1984 in the KSU Dairy Teaching and Research Center herd. Although there were slight variations in ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1987)
    Cows and heifers in milk for fewer than 50 days, as shown on the DHIA Somatic Cell Count report, should have a lower average Somatic Cell Count than cows in milk for more than 300 days, if the dry cow mastitis treatment ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1984)
    The March 1984 DHI summary of Kansas Holstein herds shows some interesting correlations of various feeding, breeding, and management factors to production (Table 1). The Rolling Herd Average (RBA) is an excellent evaluation ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1989)
    A computer program was developed for analyzing DHI records to evaluate potential losses from 1) reproduction, 2) nutrition, 3) milk quality, and 4) genetics. Production-tested Kansas Holstein herds were grouped according ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1986)
    Feed additives are ration ingredients used in relatively small amounts to fortify certain nutrients or to affect a specific physiological function. The decision to include any additive should be based upon the economic ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1987)
    Feeding and managing dairy cows during the prepartum and early lactation periods have more effect on total lactation yields than all other factors. It is during this time that the pattern of milk production is established ...
  • Stokka, G.L; Smith, J.F.; Dunham, J.R.; Van Anne, T. (Kansas Agricultural Experiment Station, 1996)
    Foot problems are major concerns for dairies, and care should be taken to avoid promoting them. Preventive measures, with the aid of a veterinarian, must be followed if the problem is expected to be controlled. ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1995)
    Reduced milk prices and greater feed costs dictate that dairy farmers carefully manage their nutrition program in order to maintain profitable milk production. Reducing feed cost by feeding less will result in lower ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1996)
    Milk urea nitrogen (MUN) analyses can be used to evaluate the nutritional status of dairy herds and for fine tuning the feeding program. MUN values >18 mg/100 ml indicate that dietary protein is being wasted and feed ...
  • Dunham, J.R.; Call, Edward P. (Kansas Agricultural Experiment Station, 1988)
    Thirty Milking Management Clinics have been conducted at various on-farm locations. The clinics have demonstrated that good milking techniques can result in an additional 1891 lb milk yield/cow in a 10-mo lactation and ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1988)
    The 1988 National Research Council's (NRC) Nutrient Requirements of Dairy Cattle have been revised. Adjustments have been made in the recommended requirements for net energy for lactation (NEL); crude protein (CP); calcium ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1995)
    The first 305-2×-ME lactation record (after 45 days in milk) projected by the DHI program in 28 cows was not different from their first projected lactation record in a previous lactation in which recombinant bovine ...
  • Stokka, G.L.; Smith, J.F.; Dunham, J.R.; Van Anne, T. (Kansas Agricultural Experiment Station, 1996)
    Always consult your veterinarian when making vaccination decisions. The most common errors are failing to give booster immunizations and doing so at the incorrect time. Animal comfort is a greater determinant of production ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1985)
    The rate of spontaneous recovery from subclinical mastitis was evaluated in 56 Kansas. DHI herds participating in the Somatic Cell Count (SCC) program. Herds were classified as low (>300,000) or high (>600,000) based on ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1986)
    Recent developments in dairy cattle nutrition have resulted in the marketing of a calcium salt of isobutyric and mixed 5-carbon volatile fatty acids (IsoPlus®). The FDA approved product has been neutralized with calcium ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1992)
    Somatic Cell Count (SCC) affects productivity of a dairy herd and, thus, potential profit. Almost all SCC problems can be solved by management. The DHIA SCC program is very useful for evaluating the situation in a ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1994)
    The Stage of Lactation Profile (SOLP) is a good estimate of the shape of the lactation curve for dairy herds. The SOLPs for herds with various milk production levels are somewhat similar. The rates of decline of ...
  • Dunham, J.R. (Kansas Agricultural Experiment Station, 1996)
    High-producing dairy herds can consistently average a somatic cell count (SCC) <200,000. Herds with consistently higher averages can decrease SCC and realize higher profits. The SCC report discloses the pitfalls that ...