Thesis (Ph. D.)--University of Wisconsin--Madison, 1939. / Typescript. Includes abstract and vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 69-71).

Thesis (M.Ag.Sc.)--University of Adelaide, Dept. of Animal Physiology, 1980. / Includes bibliographical references (leaves 193-205).

Made available in DSpace on 2016-01-26T18:55:28Z (GMT). No. of bitstreams: 1 Dissertacao.pdf: 210803 bytes, checksum: 83b85718d8feaeb1014019b6a6feaea9 (MD5) Previous issue date: 2009-08-11 / The aim of study was to test the hormonal protocol for FTAI (fixed timed artificial insemination) with progesterone for 6 days applying eCG (Equine Corionic Gonadotrophin) or BE (Estradiol Benzoate) and induction of estrus using: MAP (acetato de medroxiprogesterone) for 6, 9 and 14 days or a single dose of PGF2a or male effect. Experiment 1: In D0 each ewe (n = 31) received CIDR being divided into 3 groups: GC (control) CIDR for 9 days and in withdrawal PGF2a + eCG. In G-eCG CIDR for 6 days PGF2a + eCG and in G-BE estradiol benzoate 24H after PGF2a and the FTAI 50H after the withdraw of CIDR. Experiment 2: On day 0 the sheeps (n = 48) received MAP being divided into 2 groups: G-9 and G-14 MAP by 9 or 14 days + PGF2a in withdrawal and detection of estrus. Experiment 3: divided up the sheeps (n = 151) in 3 groups: the G-6, each ewe received MAP for 6 days + PGF2a in withdrawal, the G-PGF, each ewe received PGF2a and G-EF only introducing ruffians. In exp. 1 pregnancy in the G-eCG (66%) was higher (p <0.05) in which G-BE (11.1%). In exp. 2 there were no differences (p <0.05) in estrus, pregnancy rate or design and in exp. 3 in G-6 (58%) and G-PGF (39%) the rate of estrus was greater (p <0.05) than in G-EF (11%). We concluded that is possible to reduce the time of permanence of progesterone using eCG for FTAI in sheep. / Objetivou-se testar o protocolo hormonal para IATF (inseminação artificial em tempo fixo) com progesterona por 6 dias aplicando-se eCG (gonadotrofina Coriônica Eqüina) ou BE (Benzoato de Estradiol) e indução de estros utilizando-se: esponjas vaginais impregnadas com MAP (acetato de medroxiprogesterona) por 6, 9 e 14 dias ou dose única de PGF2a ou efeito macho. Experimento 1: No D0 cada ovelha (n=31) recebeu CIDR sendo divididas aleatoriamente em 3 grupos: G-C (controle) CIDR por 9 dias e na retirada PGF2a + eCG. No G-eCG CIDR por 6 dias + PGF2a + eCG e no G-BE Benzoato de estradiol 24h após a PGF2a e a IATF 50 h após a retirada do CIDR. Experimento 2: No dia 0 as ovelhas (n=48) receberam MAP sendo divididas em 2 grupos: G-9 e G-14 MAP por 9 ou 14 dias + PGF2a na retirada e detecção de estro. Experimento 3: Dividiu-se aleatoriamente as ovelha (n=151) em 3 grupos: o G-6, cada ovelha recebeu MAP por 6 dias + PGF2a na retirada; o G-PGF, cada ovelha recebeu PGF2a e o G-EF apenas introdução de rufiões. No exp. 1 a prenhez no G-eCG (66%) foi maior (p<0,05) que no G-BE (11,1%). No exp. 2 não houve diferenças (p<0,05) no estro, taxa de prenhez ou de concepção. No exp. 3 no G-6 (58%) e G-PGF (39%) a taxa de estro foi maior (p<0,05) que no G-EF (11%). Concluímos ser possível reduzir o tempo de permanência da progesterona usando eCG para IATF em ovelhas

Made available in DSpace on 2016-07-18T17:53:06Z (GMT). No. of bitstreams: 1 Dissertacao.pdf: 210803 bytes, checksum: 83b85718d8feaeb1014019b6a6feaea9 (MD5) Previous issue date: 2009-08-11 / The aim of study was to test the hormonal protocol for FTAI (fixed timed artificial insemination) with progesterone for 6 days applying eCG (Equine Corionic Gonadotrophin) or BE (Estradiol Benzoate) and induction of estrus using: MAP (acetato de medroxiprogesterone) for 6, 9 and 14 days or a single dose of PGF2a or male effect. Experiment 1: In D0 each ewe (n = 31) received CIDR being divided into 3 groups: GC (control) CIDR for 9 days and in withdrawal PGF2a + eCG. In G-eCG CIDR for 6 days PGF2a + eCG and in G-BE estradiol benzoate 24H after PGF2a and the FTAI 50H after the withdraw of CIDR. Experiment 2: On day 0 the sheeps (n = 48) received MAP being divided into 2 groups: G-9 and G-14 MAP by 9 or 14 days + PGF2a in withdrawal and detection of estrus. Experiment 3: divided up the sheeps (n = 151) in 3 groups: the G-6, each ewe received MAP for 6 days + PGF2a in withdrawal, the G-PGF, each ewe received PGF2a and G-EF only introducing ruffians. In exp. 1 pregnancy in the G-eCG (66%) was higher (p <0.05) in which G-BE (11.1%). In exp. 2 there were no differences (p <0.05) in estrus, pregnancy rate or design and in exp. 3 in G-6 (58%) and G-PGF (39%) the rate of estrus was greater (p <0.05) than in G-EF (11%). We concluded that is possible to reduce the time of permanence of progesterone using eCG for FTAI in sheep. / Objetivou-se testar o protocolo hormonal para IATF (inseminação artificial em tempo fixo) com progesterona por 6 dias aplicando-se eCG (gonadotrofina Coriônica Eqüina) ou BE (Benzoato de Estradiol) e indução de estros utilizando-se: esponjas vaginais impregnadas com MAP (acetato de medroxiprogesterona) por 6, 9 e 14 dias ou dose única de PGF2a ou efeito macho. Experimento 1: No D0 cada ovelha (n=31) recebeu CIDR sendo divididas aleatoriamente em 3 grupos: G-C (controle) CIDR por 9 dias e na retirada PGF2a + eCG. No G-eCG CIDR por 6 dias + PGF2a + eCG e no G-BE Benzoato de estradiol 24h após a PGF2a e a IATF 50 h após a retirada do CIDR. Experimento 2: No dia 0 as ovelhas (n=48) receberam MAP sendo divididas em 2 grupos: G-9 e G-14 MAP por 9 ou 14 dias + PGF2a na retirada e detecção de estro. Experimento 3: Dividiu-se aleatoriamente as ovelha (n=151) em 3 grupos: o G-6, cada ovelha recebeu MAP por 6 dias + PGF2a na retirada; o G-PGF, cada ovelha recebeu PGF2a e o G-EF apenas introdução de rufiões. No exp. 1 a prenhez no G-eCG (66%) foi maior (p<0,05) que no G-BE (11,1%). No exp. 2 não houve diferenças (p<0,05) no estro, taxa de prenhez ou de concepção. No exp. 3 no G-6 (58%) e G-PGF (39%) a taxa de estro foi maior (p<0,05) que no G-EF (11%). Concluímos ser possível reduzir o tempo de permanência da progesterona usando eCG para IATF em ovelhas