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The effects of various levels of dietary protein on high producing dairy cows in early lactation

Creator:: Pangborn, Marvin Clark
Abstract:: This project was designed to test the biological effects of three levels of dietary protein (12.7, 16.3 and 19.3% CP on a dry matter basis) on high producing Holstein-Friesian dairy cows. Forty five second lactation or older cows that showed the potential to produce over 31.75 kg (70 lbs) per...
Resource Type:: Masters Thesis
Full Text:: three (61-90 days). Milk fat % was greater (P < .01) for period one. Milk protein was not

Lactational response of Holstein cows to oral administration of a synthetic glucocorticoid

Creator:: Lind, Ronald Egnard
Abstract:: Two experiments involving 33 Holstein cows were conducted for the primary purpose of studying the effects of flumethasone (a synthetic glucocorticoid) on milk and milk constituent yields. The secondary purpose was to compare udder health, reproductive performance, and body weight changes of cows on flumethasone therapy. Nine Holstein cows were...
Resource Type:: Masters Thesis
Full Text:: ), and ME, 4% FCM were significantly less (P<. 05) for treatment III than treatment I. Cows on treatment

Inheritance of maternal antibody concentration in the bovine neonate

Creator:: Muggli, Noelle Elizabeth
Abstract:: Serum samples were collected between 24 and 48 h of age from 408 Hereford calves of a selection experiment and from 200 Angus, Hereford and Red Poll calves of another experimental population (Germ Plasm Utilization project). Concentrations of Immunoglobulin G₁ (IgG₁) were determined by single radial immunodiffusion. Breed or selection...
Resource Type:: Masters Thesis
Full Text:: line of calf and age of dam were the most important factors influencing IgGi concentrations (P < .01

Interrelationships among characteristics of body form and milk production in dairy cattle

Creator:: Ufford, Glen Raymond
Abstract:: Evaluations of body form and measures of milk production were recorded for 188 Holstein lactations and 77 Jersey lactations in the Oregon State University Dairy Herds. Components of body form included general appearance, dairy character, body capacity, and mammary system and 34 sub-components of these four traits plus body weight...
Resource Type:: Masters Thesis
Full Text:: Holsteins; six classes, scale of 4 to 9. Mean 2.79 2.80 3.41 3.28 2.69 2.60 2.74 Mitchell, Corley, and

Comparative values of corn and corn cannery waste silages for milk production in dairy cattle

Creator:: Meyers, George Henry
Abstract:: The production level of dairy cows fed corn cannery waste silage was investigated during a 305 day lactation study. Eighteen Holstein cows were paired according to their probable producing ability and field corn silage was fed to the control pairmates, Forage analyses (DM, CP, CF, and nitrates) were determined on...
Resource Type:: Masters Thesis
Full Text:: -not-fat (P>. 05) than the controls. Persistency of lactation was less for the corn cannery waste fed

Performance of dairy cattle under two feeding regimes, dry lot and irrigated pasture

Creator:: Kyeyune-Sendagi, Aloysius Lloyd
Abstract:: Four experiments were conducted (1961-1964) for the primary purpose of studying the milk and milk constituent yields of dairy cows under dry lot and pasture systems of management. The secondary purpose was to compare the health and breeding performance of cows under these two systems. Ninety-eight cows of the Holstein...
Resource Type:: Masters Thesis
Full Text:: performance between the two systems were not significant statistically (P < 0.05) for the following

Influence of maternal instinct stimulated by calf contact on the hormonal induction of lactation in the bovine

Creator:: Bel Isle, Dennis Marc
Abstract:: An experiment was conducted to determine the effect a newborn calf would have on initial success rate, lactation performance, infertility and progesterone levels during mammogenesis and lactogenesis in dairy cows undergoing hormonal inducement to lactate. Fourteen Holstein, Brown Swiss and Jersey infertile, non-lactating cows, loaned by Pacific Northwest dairymen, were...
Resource Type:: Masters Thesis
Full Text:: lactation records (McDaniel, Miller and Corley, 1965). Subsequently, these records were adjusted to an ME

Genetic differences in concentration of immunoglobulins M and G in serum and colostrum of cows and in serum of neonatal calves

Creator:: Norman, Lindsay M.
Resource Type:: Masters Thesis
Full Text:: tended to have lower IgM and IgGI levels (P=.07) than calves sired by Hereford x Angus or Tarentaise

The comparison of two methods of evaluating inheritance of milk production of dairy sires

Creator:: Srinives, Supote
Abstract:: The production records used were all converted to a comparable based, 305 day lactation period, two times a day milking, and mature equivalent (305 days-2-x-ME) of 71 cows from four Holstein bulls and 59 cows from four Jersey bulls were used for the study. The Equal Parent Index, Regression Index...
Resource Type:: Masters Thesis
Full Text:: than the heritability of the second. Johnson and Corley (1961), studying the heritability

Influence of pesticides on rumen microbial metabolism

Creator:: Kutches, Alexander Joseph
Resource Type:: Dissertation
Full Text:: between the lower (100 µg /ml) and upper (750 and 1000 Fig/m1) levels were significant (P < 05) for all

ScholarsArchive@OSU

The effects of various levels of dietary protein on high producing dairy cows in early lactation

Lactational response of Holstein cows to oral administration of a synthetic glucocorticoid

Inheritance of maternal antibody concentration in the bovine neonate

Interrelationships among characteristics of body form and milk production in dairy cattle

Comparative values of corn and corn cannery waste silages for milk production in dairy cattle

Performance of dairy cattle under two feeding regimes, dry lot and irrigated pasture

Influence of maternal instinct stimulated by calf contact on the hormonal induction of lactation in the bovine

Genetic differences in concentration of immunoglobulins M and G in serum and colostrum of cows and in serum of neonatal calves

The comparison of two methods of evaluating inheritance of milk production of dairy sires

Influence of pesticides on rumen microbial metabolism

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