Search Results - "Gutierrez, C. G."

In vitro ruminal fermentation of glycerol, propylene glycol and molasses combined with forages and their effect on glucose and insulin blood plasma concentrations after an oral drench in sheep by Ferraro, S.M., Mendoza, G.D., Miranda, L.A., Gutiérrez, C.G.

“…•The longer time to begin fermentation of glycerol allows for its absorption and its direct use for glucose production in the liver.•Propylene glycol and…”
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Healthy ageing of cloned sheep by Sinclair, K. D., Corr, S. A., Gutierrez, C. G., Fisher, P. A., Lee, J.-H., Rathbone, A. J., Choi, I., Campbell, K. H. S., Gardner, D. S.

“…The health of cloned animals generated by somatic-cell nuclear transfer (SCNT) has been of concern since its inception; however, there are no detailed…”
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In vitro gas production and ruminal fermentation of glycerol, propylene glycol and molasses by Ferraro, S.M., Mendoza, G.D., Miranda, L.A., Gutiérrez, C.G.

“…Ruminal fermentation pattern and in vitro gas production was determined for three energy sources for ruminants, glycerol, propylene glycol and molasses with…”
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Linear and nonlinear analysis of airflow recordings to help in sleep apnoea-hypopnoea syndrome diagnosis by Gutiérrez-Tobal, G C, Hornero, R, Alvarez, D, Marcos, J V, del Campo, F

“…This paper focuses on the analysis of single-channel airflow (AF) signal to help in sleep apnoea-hypopnoea syndrome (SAHS) diagnosis. The respiratory rate…”
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Pregnancy rate in dairy cows treated with progesterone for six days during estrus synchronization with PGF2α by Orozco, M., Gutiérrez, C.G., López, R., Aguilar, C., Roque, C., Hernández-Cerón, J.

“…The present study evaluated the effect of progesterone supplementation during a double PGF2α injection synchronization protocol on pregnancy per artificial…”
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The corpora lutea proangiogenic state of VEGF system components is turned to antiangiogenic at the later phase of the oestrous cycle in cows by Guzmán, A., Macías-Valencia, R., Fierro-Fierro, F., Gutiérrez, C. G., Rosales-Torres, A. M.

“…Blood vessel expansion and reduction in the corpus luteum (CL) is regulated by the vascular endothelial growth factor (VEGF) system and linked to the…”
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Testosterone stimulates progesterone production and STAR, P450 cholesterol side-chain cleavage and LH receptor mRNAs expression in hen (Gallus domesticus) granulosa cells by Rangel, P L, Rodríguez, A, Rojas, S, Sharp, P J, Gutierrez, C G

“…The chicken ovary is organized into a hierarchy of yellow yolky follicles that ovulate on successive days. Active or passive immunization of laying hens…”
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Direct in vivo effects of leptin on ovarian steroidogenesis in sheep by Kendall, N R, Gutierrez, C G, Scaramuzzi, R J, Baird, D T, Webb, R, Campbell, B K

“…Leptin, the metabolic fat hormone, has been shown to have effects on reproduction in mice and to modulate steroid production by cultured ovarian somatic cells…”
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Identification of Soluble Forms of Vascular Endothelial Growth Factor receptors, sVEGFR‐1 and sVEGFR‐2, in Bovine Dominant Follicles by Macias, VR, Pinzón, C, Fierro, F, Vergara, M, Martínez, D, Rosado, A, Gutiérrez, CG, Rosales‐Torres, AM

“…The development of dominant follicles requires the parallel growth of a vascular network, regulated by VEGF and its receptors VEGFR‐1 and VEGFR‐2. Here, we…”
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Testosterone antagonist (flutamide) blocks ovulation and preovulatory surges of progesterone, luteinizing hormone and oestradiol in laying hens by Rangel, P L, Sharp, P J, Gutierrez, C G

“…The preovulatory release of luteinizing hormone (LH) in the domestic hen occurs after the initiation of a preovulatory surge of testosterone. The objective of…”
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Plasma concentrations of leptin, insulin-like growth factor-I, and insulin in relation to changes in body condition score in heifers by Leon, H.V, Hernandez-Ceron, J, Keisler, D.H, Gutierrez, C.G

“…The objective of this study was to determine the relationships among plasma concentrations of leptin, insulin, and IGF-I with dynamic changes in body condition…”
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Increased cleavage and blastocyst rate in ewes treated with bovine somatotropin 5 days before the end of progestin-based estrous synchronization by Montero-Pardo, A, Hernández-Cerón, J, Rojas-Maya, S, Valencia, J, Rodríguez-Cortez, A, Gutiérrez, C.G

“…Treatment with bovine somatotropin (bST) during estrous synchronization increased fertility and prolificacy in sheep. In the present study, a single dose of…”
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Expression of mRNA encoding IGF-I, IGF-II and type 1 IGF receptor in bovine ovarian follicles by Armstrong, DG, Gutierrez, CG, Baxter, G, Glazyrin, AL, Mann, GE, Woad, KJ, Hogg, CO, Webb, R

“…IGFs regulate gonadotrophin-stimulated proliferation and differentiation of granulosa and theca cells in vitro. However, the detailed pattern of mRNA…”
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Reduced response to an estrous induction program in postpartum beef cows treated with zilpaterol and gaining body weight by Guzmán, A, Gonzalez-Padilla, E, Garcés-Yépez, P, Rosete-Fernandez, J.V, Calderón-Robles, R.C, Murcia, C, Gutiérrez, C.G

“…In beef cows, reduced energy intake delays first ovulation postpartum and is associated with lesser insulin, IGF-I and leptin concentrations. However, the…”
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Mechanisms regulating follicular development and selection of the dominant follicle by Webb, R, Nicholas, B, Gong, J G, Campbell, B K, Gutierrez, C G, Garverick, H A, Armstrong, D G

“…Reproductive function is an integrated process encompassing both extra-ovarian signals, such as gonadotrophins, and intrafollicular factors, such as locally…”
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Development of a long-term bovine granulosa cell culture system: induction and maintenance of estradiol production, response to follicle-stimulating hormone, and morphological characteristics by Gutierrez, C.G. (Roslin Institute, Edinburgh, Roslin, Midlothian (United Kingdom)), Campbell, B.K, Webb, R

“…The objectives of this study were to develop a serum-free bovine granulosa cell culture system in which FSH-responsive estradiol production could be induced…”
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Suppression in the secretion of follicle-stimulating hormone and luteinizing hormone, and ovarian follicle development in heifers continuously infused with a gonadotropin-releasing hormone agonist by Gong, J.G. (Roslin Institute, Edinburgh, Roslin, Midlothian, UK.), Campbell, B.K, Bramley, T.A, Gutierrez, C.G, Peters, A.R, Webb, R

“…A novel experimental model was developed in cattle to investigate the requirement for FSH and LH during ovarian follicle growth and development. On Day 5 of…”
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Progesterone and the distribution of pituitary gonadotropin isoforms in cattle by Perera-Marín, G., Gutiérrez, C.G., Murcia, C., León, H., González-Padilla, E.

“…The objective of the present study was to determine the relative proportion of gonadotropin isoforms in bovine pituitary glands affected by progesterone…”
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Regulation of expression of ovarian mRNA encoding steroidogenic enzymes and gonadotrophin receptors by FSH and GH in hypogonadotrophic cattle by Garverick, HA, Baxter, G, Gong, J, Armstrong, DG, Campbell, BK, Gutierrez, CG, Webb, R

“…A study was conducted to determine the effects of FSH and bovine somatotrophin on the expression of mRNA encoding the gonadotrophin receptors and steroidogenic…”
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A single dose of bovine somatotropin 5 days before the end of progestin-based estrous synchronization increases prolificacy in sheep by Carrillo, F., Hernández-Cerón, J., Orozco, V., Hernández, J.A., Gutiérrez, C.G.

“…Bovine somatotropin (bST) enhances ovarian follicular and embryonic development in sheep and cattle. In the present study, the objective was to assess whether…”
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