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Effects Of Melengestrol Acetat (Mga) And Prostaglandin On Blood Serum Progesterone, Luteinizing Hormone, And Reproductive Performance In Beef Cows, I. A. Sohaili, H. L. Miller, D. D. Zalesky, M. B. Long
Effects Of Melengestrol Acetat (Mga) And Prostaglandin On Blood Serum Progesterone, Luteinizing Hormone, And Reproductive Performance In Beef Cows, I. A. Sohaili, H. L. Miller, D. D. Zalesky, M. B. Long
South Dakota Beef Report, 1995
A study utilizing 64 Angus and Simmental multiparous beef cows was conducted to evaluate the administration of MGA-PGF on the onset of estrus, conception rate, and to determine blood serum hormone profiles (P, & LH). Cows utilized were at least 30 days postpartum and stratified by age, breed, and days postpartum into two groups: a treatment group (n=32) which received MGA orally for 14 days and a control group (n = 32) which did not receive MGA. Cows in the study were bled weekly for 9 weeks to monitor serum P, levels. Cows with serum P4 ≥ 1 ng/mL were …
Effects Of Mga On Prepubertal Crossbred Beef Heifers, L. B. Butler, H. L. Miller, M. B. Long, D. D. Zalesky, D.M. Marshall
Effects Of Mga On Prepubertal Crossbred Beef Heifers, L. B. Butler, H. L. Miller, M. B. Long, D. D. Zalesky, D.M. Marshall
South Dakota Beef Report, 1995
A study was conducted using 55 prepubertal replacement crossbred beef heifers to determine the effect of feeding MGA to prepubertal heifers on age at puberty. No difference (P= .65) was detected between MGA treated heifers versus control heifers for age at puberty. There was no difference (P= .80) in age at conception to A1 for the two groups.