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| Moraes,Gentil Vanini de; Macedo,Francisco de Assis Fonseca de; Lourenço,Fábio José; Macedo,Filipe Gomes de; Rigolon,Luiz Paulo; Nogueira,Guilherme de Paula; Santello,Graziela Aparecida. |
| The incidence of estrus in nulliparous Santa Inês (n = 16), Texel (n = 16) and Ile de France (n = 15) ewes fed two levels of crude protein (CP, 12 or 16%) was monitored from July 2005 to December 2006, and seasonality in the Santa Inês breed in the south of Brazil was characterized. The solar radiation data were recorded daily, and samples of blood were collected biweekly for determination of the plasma concentration of progesterone in Santa Inês lambs at, on average, 11±1 months of age. The female Santa Inês lambs, in the experimental period, stayed among teaser rams with a powdered-dye-ink mixture placed on their chest to mark the females that accepted to be mounted. Santa Inês ewes did not manifest estrus in the first fortnight of November and in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Photoperiodic; Progesterone; Reproduction; Seasonality. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001000003 |
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| Nogueira,Guilherme de Paula; Barnabe,Renato Campanarut; Bedran-de-Castro,João César; Moreira,Alankardison Ferreira; Fernandes,Wilson Roberto; Mirandola,Regina Mieko Sakata; Howard,Denise Louise. |
| Exercise can be defined as "normal stress" stimulating body functions. Some reports suggest lactate as a stimulator of cortisol levels, while creatinine varies according to the amount of muscle tissue. In the present study we investigated the relationship between creatinine, serum lactate concentration and cortisol levels in training horses. Twenty-three Thoroughbred fillies were used, divided into 3 groups according to age and training protocol: G1, 1-2 years of age (N=7) on pasture, G2, 2-3 years (N=9) starting to be mounted, and G3, 3-4 years (N=7) racing at the Jockey Club. Blood samples were collected weekly during a six-month period at about 1:00 p.m. while the animals were resting. Cortisol was quantified with a commercial kit (Coat-a Count®) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hydrocortisone; Horses; Lactates; Creatinine; Exercise. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000100010 |
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