The results of the superovulation of dairy and beef cows using porcine pituitary FSH characterized by defined LH content are reported. A total amount of FSH equivalent to 31 mg of Armour Standard and containing LH equivalent to 500 i.u. (HMG Standard), administered in 10 decreasing doses over a period of five days, induced 7.33 ± 4.67 (mean ± SD) ovulations in six lactating Friesian cows (group 1), and 2 ± 1.41 transferable embryos were collected nonsurgically. Furthermore, the treatment with FSH equivalent to 62 mg of Armour Standard and containing 1000 i.u. LH induced 19.43 ± 9.25 ovulations in 16 lactating Friesian cows (group 2). Similar results were obtained in seven Marchigiana and Chianina cows (group 3) using a total amount of FSH equivalent to 46.5 mg Armour Standard and containing 750 i.u. LH. At the higher dose, 10.56 ± 6.39 transferable embryos were collected, their percentage was 73.47%, and none of the donors produced fewer than four transferable embryos.
Superovulation of dairy and beef cows using porcine FSH with defined LH content / A. Lauria, O. Oliva, A.R. Genazzani, F. Cremonesi, F. Gandolfi, M. Barbetti. - In: THERIOGENOLOGY. - ISSN 0093-691X. - 20:6(1983 Dec), pp. 675-682. [10.1016/0093-691X(83)90187-5]
Superovulation of dairy and beef cows using porcine FSH with defined LH content
A. LauriaPrimo
;F. Cremonesi;F. GandolfiUltimo
;
1983
Abstract
The results of the superovulation of dairy and beef cows using porcine pituitary FSH characterized by defined LH content are reported. A total amount of FSH equivalent to 31 mg of Armour Standard and containing LH equivalent to 500 i.u. (HMG Standard), administered in 10 decreasing doses over a period of five days, induced 7.33 ± 4.67 (mean ± SD) ovulations in six lactating Friesian cows (group 1), and 2 ± 1.41 transferable embryos were collected nonsurgically. Furthermore, the treatment with FSH equivalent to 62 mg of Armour Standard and containing 1000 i.u. LH induced 19.43 ± 9.25 ovulations in 16 lactating Friesian cows (group 2). Similar results were obtained in seven Marchigiana and Chianina cows (group 3) using a total amount of FSH equivalent to 46.5 mg Armour Standard and containing 750 i.u. LH. At the higher dose, 10.56 ± 6.39 transferable embryos were collected, their percentage was 73.47%, and none of the donors produced fewer than four transferable embryos.File | Dimensione | Formato | |
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