02864naa a2200469 a 450000100080000000500110000800800410001902400350006010000210009524501000011626000090021652015490022565000220177465000240179665000160182065000110183665000160184765000260186365000170188965000120190665000200191865000190193865000120195765000190196965000250198865000210201365000170203465000240205165300110207565300220208665300180210865300140212665300240214065300210216470000230218570000210220870000220222970000220225170000220227370000200229577300790231521102642019-11-07       2019    bl uuuu     u00u1 u    #d7 a10.1007/s11250-018-1696-22DOI1 aBALARO, M. F. A.  aReproductive seasonality in Saanen goats kept under tropical conditions.h[electronic resource]  c2019  aAbstract: This study aimed to verify the reproductive seasonality in Saanen goats from distinct parity orders (nulliparous, primiparous, and pluriparous) throughout an entire year in the Southeast Region of Brazil. In addition, it was also verified the influence of environmental indexes, metabolic profile, body weight, and social interactions on the reproductive seasonality of these animals. Forty Saanen goats kept under intensive system at latitude 22° 52' 30? s and tropical photoperiod (11-13 h of light per day) were used. Every 15 days, blood from 24 animals (8 animals per group) was collected for assessment of serum progesterone levels. Monthly, environmental data (rainfall index, maximum and minimum temperature, and time of natural daylight) and blood were collected to evaluate the metabolic profile. Weighting and body condition score measurement were also carried out every 2 months. There was no difference in body weight and body condition score in primiparous and pluriparous goats. Nulliparous goats showed natural breeding season in the winter season while the primiparous and pluriparous goats remained cyclical in autumn and winter season. Regardless of the parity order, all goats showed a seasonal anestrus in the spring season. From December, social interactions were able to reestablish, in distinct degrees, the cyclical state in the goats. Likewise, environmental and weight indexes had low and moderate influence, respectively, on the reproductive seasonality in the Saanen goats kept under tropical conditions.  aAnimal physiology  aAnimal reproduction  aBody weight  aBrazil  aDairy goats  aParity (reproduction)  aProgesterone  aSeasons  aSexual behavior  aCabra Leiteira  aCaprino  aClima Tropical  aComportamento Sexual  aEstação do Ano  aProgesterona  aReprodução Animal  aBrasil  aMetabolic profile  aPeso corporal  aPeso vivo  aSocial interactions  aTropical climate1 aMELLO, S. G. V. de1 aSANTOS, A. da S.1 aCAVALCANTI, L. M.1 aALMOSNY, N. R. P.1 aFONSECA, J. F. da1 aBRANDÃO, F. Z.  tTropical Animal Health and Productiongv. 51, n. 2, p. 345-353, Feb. 2019.