Pregnancy-Associated Glycoprotein and progesterone profiles during pregnancy and postpartum in native goats from north-east of Brazil.

in Small Ruminant Research (1999), 32

Pregnancy diagnosis is a critical procedure for monitoring goat reproductive performance. In the present investigation, pregnancy-associated glycoprotein (PAG) profiles during pregnancy and first month ... [more ▼]

Pregnancy diagnosis is a critical procedure for monitoring goat reproductive performance. In the present investigation, pregnancy-associated glycoprotein (PAG) profiles during pregnancy and first month postpartum, as well as progesterone (P4) concentrations throughout pregnancy, were determined in native goats from the north-east of Brazil. A total of 30 goats (Moxoto, n = 19 and Caninde, n = 11) were used. Peripheral blood was collected on days 0 (Day 0 = AI), 11, 16, 18, 20, 24 and 30 after AI. Samples were subsequently collected every 2 weeks until day 145, and weekly during the first month postpartum. The levels of PAG and P4 were determined by radioimmunoassay (RIA). The profiles of PAG were not different between the breeds throughout pregnancy. However, a significant effect of the week of pregnancy (p < 0.01) and the number of fetuses (p < 0.05) in PAG concentrations were found. Lower concentrations of PAG were observed during weeks 1 and 3, compared to the rest of the gestation. Thereafter, there was a significant (p < 0.05) increase in PAG concentrations from week 5 to 7 and a significant decrease (p < 0.05) in week 9. The PAG concentrations remained relatively constant until week 17, and finally decreased slowly until parturition. After parturition, PAG concentrations decreased rapidly, and continued to decrease until week 4. During pregnancy, mean P4 concentrations had weekly variations among the animals (p < 0.01) and the period of pregnancy (p < 0.01), but P4 was not affected by the breed or number of fetuses. These results indicate that PAG and P4 concentrations were similar for Caninde and Moxoto goats and that, for both the breeds, the stage of pregnancy and the number of fetuses could influence PAG production. [less ▲]

Perfis sorologicos de PAG (Pregnancy-Associated Glycoprotein) e progesterona durante a gestacao e periodo pos-parto em cabras Moxoto e Caninde

Master of advanced studies dissertation (1997)

Concentrações plasmáticas de PAG (Pregnancy-Associated Glycoprotein) em cabras nativas gestantes e não-gestantes nos dias 24, 30 e 43 pós-inseminação.

Poster (1996)

Progesterone (P4) levels during gestation in Canindé and Moxotó goats.

Poster (1996)

Plasmatic profiles of Pregnancy-Associated Glycoprotein (PAG) in european goats with single and multiple gestation.

Poster (1996)

Perfis plasmáticos de progesterona (P4) durante a gestação em cabras Canindé e Moxotó.

in Anais do V Encontro de Iniciação Científica da UECE (1996)

Água de coco sob a forma de fração ativa liofilizada adicionada ou não de gema de ovo e gel como diluidores do sêmen ovino.

in Anais do XXIII Congresso Brasileiro de Medicina Veterinária (1994)

Avaliação da taxa de degradação da motilidade do sêmen de ovinos deslanados e caprinos, diluidos em água de coco e suas frações.

in Anais do XXIII Congresso Brasileiro de Medicina Veterinária (1994)