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Luis Zarazaga

Research Profile

Chemicals & Drugs

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Physiology

Procedures

Ovariectomy

Geographic Areas

Mediterranean Region

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Publications

TOP 3
I Celi; L Gallego-Calvo; M C Gatica; J L Guzmán; Luis Zarazaga
Influence of the male effect on the reproductive performance of female Payoya goats implanted with melatonin at the winter solstice.
Luis Zarazaga; Irma Celi; José L Guzmán; Benoît Malpaux
Enhancement of the male effect on reproductive performance in female Mediterranean goats with long day and/or melatonin treatment.
Luis Zarazaga; I Celi; M C Gatica; J L Guzmán
Reproductive performance is improved during seasonal anoestrus when female and male Murciano-Granadina goats receive melatonin implants and in Payoya goats when females are thus treated.

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All Publications

2013: I Celi; L Gallego-Calvo; M C Gatica; J L Guzmán; Luis Zarazaga
Influence of the male effect on the reproductive performance of female Payoya goats implanted with melatonin at the winter solstice.
Animal reproduction science 2013;137(3-4):183-8.
2012: Luis Zarazaga; Irma Celi; José L Guzmán; Benoît Malpaux
Enhancement of the male effect on reproductive performance in female Mediterranean goats with long day and/or melatonin treatment.
Veterinary journal (London, England : 1997) 2012;192(3):441-4.
2012: Luis Zarazaga; I Celi; M C Gatica; J L Guzmán
Reproductive performance is improved during seasonal anoestrus when female and male Murciano-Granadina goats receive melatonin implants and in Payoya goats when females are thus treated.
Reproduction in domestic animals = Zuchthygiene 2012;47(3):436-42.
2011: Luis Zarazaga; Irma Celi; José Luis Guzmán; Benoît Malpaux
The effect of nutrition on the neural mechanisms potentially involved in melatonin-stimulated LH secretion in female Mediterranean goats.
The Journal of endocrinology 2011;211(3):263-72.
2011: Luis Zarazaga; I Celi; M C Gatica; J L Guzmán; Benoît Malpaux
Artificial long days in addition to exogenous melatonin and daily contact with bucks stimulate the ovarian and oestrous activity in Mediterranean goat females.
Animal : an international journal of animal bioscience 2011;5(9):1414-9.
2011: Luis Zarazaga; I Celi; J L Guzmán; Benoît Malpaux
The response of luteinizing hormone secretion to photoperiod is modified by the level of nutrition in female Mediterranean goats.
Animal reproduction science 2011;126(1-2):83-90.
2011: Luis Zarazaga; I Celi; M C Gatica; J L Guzmán; Benoît Malpaux
Artificial long days and daily contact with bucks induce ovarian but not oestrous activity during the non-breeding season in Mediterranean goat females.
Animal reproduction science 2011;125(1-4):81-7.
2011: Luis Zarazaga; Irma Celi; José Luis Guzmán; Benoît Malpaux
The role of nutrition in the regulation of luteinizing hormone secretion by the opioidergic, dopaminergic, and serotonergic systems in female Mediterranean goats.
Biology of reproduction 2011;84(3):447-54.
2010: Luis Zarazaga; I Celi; J L Guzmán; B Malpaux
Melatonin concentrations in the two jugular veins, and relationship with the seasonal reproductive activity in goats.
Theriogenology 2010;74(2):221-8.
2010: Luis Zarazaga; L Todini; P Chemineau; P-G Marnet; A Locatelli; B Malpaux
Nocturnal melatonin concentrations vary dramatically between the two jugular veins in most individual sheep maintained under mimicked or natural photoperiod.
Research in veterinary science 2010;88(2):233-8.
2009: Luis Zarazaga; M C Gatica; I Celi; J L Guzmán; B Malpaux
Effect of melatonin implants on sexual activity in Mediterranean goat females without separation from males.
Theriogenology 2009;72(7):910-8.
2009: Luis Zarazaga; J L Guzmán; C Domínguez; M C Pérez; R Prieto
Effects of season and feeding level on reproductive activity and semen quality in Payoya buck goats.
Theriogenology 2009;71(8):1316-25.
2009: Luis Zarazaga; C Domínguez; J L Guzmán; M C Pérez; R Prieto; J Sánchez
Nutrition level and season of birth do not modify puberty of Payoya goat kids.
Animal : an international journal of animal bioscience 2009;3(1):79-86.
2006: Daniel Guillaume; Luis Zarazaga; Benoît Malpaux; Philippe Chemineau
Variability of plasma melatonin level in pony mares (Equus caballus), comparison with the hybrid: mules and with jennies (Equus asinus).
Reproduction, nutrition, development 2006;46(6):633-9.
2005: Luis Zarazaga; J L Guzmán; C Domínguez; M C Pérez; R Prieto
Effect of plane of nutrition on seasonality of reproduction in Spanish Payoya goats.
Animal reproduction science 2005;87(3-4):253-67.
2003: Andrés García; Tomás Landete-Castillejos; Luis Zarazaga; José J Garde; Laureano Gallego
Seasonal changes in melatonin concentrations in female Iberian red deer (Cervus elaphus hispanicus).
Journal of pineal research 2003;34(3):161-6.
2003: Luis Zarazaga; Benoît Malpaux; Philippe Chemineau
Amplitude of the plasma melatonin nycthemeral rhythms is not associated with the dates of onset and offset of the seasonal ovulatory activity in the Ile-de-France ewe.
Reproduction, nutrition, development 2003;43(2):167-77.
2002: Philippe Chemineau; Agnès Daveau; Loys Bodin; Luis Zarazaga; A Gomez-Brunet; Benoît Malpaux
Sheep as a mammalian model of genetic variability in melatonin.
Reproduction (Cambridge, England) Supplement 2002;59():181-90.
1999: Steven L Coon; Luis Zarazaga; Benoît Malpaux; J P Ravault; Loys Bodin; P Voisin; joan weller; David Klein; Philippe Chemineau
Genetic variability in plasma melatonin in sheep is due to pineal weight, not to variations in enzyme activities.
The American journal of physiology 1999;277(5 Pt 1):E792-7.
1999: Berthe Vivien-Roels; Paul Pevet; Luis Zarazaga; Benoît Malpaux; Philippe Chemineau
Daily and light-at-night induced variations of circulating 5-methoxytryptophol (5-ML) in ewes with respectively high and low nocturnal melatonin secretion.
Journal of pineal research 1999;27(4):230-6.
1998: Luis Zarazaga; Benoît Malpaux; Daniel Guillaume; Loys Bodin; Philippe Chemineau
Genetic variability in melatonin concentrations in ewes originates in its synthesis, not in its catabolism.
The American journal of physiology 1998;274(6 Pt 1):E1086-90.
1998: Luis Zarazaga; Benoît Malpaux; Loys Bodin; Philippe Chemineau
The large variability in melatonin blood levels in ewes is under strong genetic influence.
The American journal of physiology 1998;274(4 Pt 1):E607-10.
1998: JM Lozano; JOSE ALFONSO ABECIA; Fernando Forcada; Luis Zarazaga; B Alfaro
Effect of undernutrition on the distribution of progesterone in the uterus of ewes during the luteal phase of the estrous cycle.
Theriogenology 1998;49(3):539-46.
1997: JOSE ALFONSO ABECIA; JM Lozano; Fernando Forcada; Luis Zarazaga
Effect of level of dietary energy and protein on embryo survival and progesterone production on day eight of pregnancy in Rasa Aragonesa ewes.
Animal reproduction science 1997;48(2-4):209-18.
1997: Luis Zarazaga; Benoît Malpaux; Philippe Chemineau
The characteristics of the melatonin secretory rhythm are not modified by the stage of pregnancy in ewes.
Reproduction, nutrition, development 1997;37(1):105-12.
1996: Luis Zarazaga; Benoît Malpaux; Philippe Chemineau
Characteristics of the plasma melatonin rhythm are not modified by steroids during the estrous cycle in IIe-de-France ewes.
Journal of pineal research 1996;21(2):114-20.
1996: JOSE ALFONSO ABECIA; Fernando Forcada; Luis Zarazaga; JM Lozano
The incidence of luteal activity, as determined by peripheral plasma progesterone concentration, before the onset of the breeding season in the Rasa Aragonesa breed of sheep.
The British veterinary journal 1996;152(3):353-5.
1995: Fernando Forcada; Luis Zarazaga; JOSE ALFONSO ABECIA
Effect of exogenous melatonin and plane of nutrition after weaning on estrous activity, endocrine status and ovulation rate in Salz ewes lambing in the seasonal anestrus.
Theriogenology 1995;43(7):1179-93.
1993: J A Abecia; F Forcada; Luis Zarazaga; J M Lozano
Effect of plane of protein after weaning on resumption of reproductive activity in Rasa Aragonesa ewes lambing in late spring.
Theriogenology 1993;39(2):463-73.