Steroid hormone profile of Markhoz does (Iranian Angora) throughout estrous cycle and gestation period

Talebi, J.; Moghaddam, Aliasghar; Souri, M.; Mirmahmoudi, R.

doi:10.1007/s11250-011-0029-5

Cited by 7 publications

(6 citation statements)

References 22 publications

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“…Estrogen is the main hormone that acts in the appearance of behavioral heat in female mammalians. And also, all trends of change in estrogen in this study are in harmony with the findings from other studies on Angora and other goat breeds (Bono et al, 1983;Alaçam et al, 1999;Blaszczyk et al, 2004;Khanum et al, 2008;Talebi et al, 2012).…”

Section: Discussionsupporting

confidence: 92%

“…When Figure 1 is examined, the progesterone concentrations in female goats increase until the first half of pregnancy and then its concentration was decreased rapidly and has reached basal level after kidding. Similar results were obtained in other studies conducted to determine the progesterone concentration in goats during pregnancy (Bono et al, 1983;Kadzere et al, 1997;Gaafar et al, 2005;Khanum et al, 2008;Sogerescu et al, 2012;Talebi et al, 2012).…”

Section: Discussionsupporting

confidence: 89%

“…Changes in the reproductive hormones concentrations in different physiological periods are among of the most important physiological parameters to determine the fertility status of female goats (Talebi et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Annual Change of Reproductive Hormones in Female Angora Goats

Pehlivan

Polat

Dellal

2017

Turkish JAF Sci.Tech.

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In this research, annual changes of melatonin, gonadotropin-releasing hormone, follicle stimulating hormone, luteinizing hormone, estrogen, testosterone and progesterone were studied on 6 heads of 1.5 years old female Angora goat. To determine hormones concentrations, blood samples were taken from jugular vein of each goat in every month for a year. The blood samples were centrifuged at 4000xg for 5 min. and serum was stored at -20°C until analyses time. Hormones analyses in the serum were performed by enzyme immunoassay (EIA) method. Monthly climatic values and photoperiod were obtained from the Turkish State Meteorological Service and temperature-humidity index was calculated with climatic values. In the study, in order to determine any possible differences in the observed hormones concentrations with respect to months, repeated measures ANOVA analysis was performed. As a result of statistical analysis, there were no significant differences among the months for gonadotropin-releasing hormone, follicle stimulating hormone and testosterone concentration, while significant differences were found among the months for melatonin, luteinizing hormone and progesterone, and estrogen concentration in female Angora goats. According the results of this study, could be concluded that the releases of reproductive hormones examined in female Angora goats was seasonally dependent.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 89%

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Annual Change of Reproductive Hormones in Female Angora Goats

Pehlivan

Polat

Dellal

2017

Turkish JAF Sci.Tech.

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“…Moreover, the emergence of estrous behaviour accompanied by a decrease in progesterone hormone levels may reflect ovarian activity described by several researchers (Budi, 2022; Chemineau et al, 1986; Eiamvitayakorn & Rigor, 1988; Khanum et al, 2007; Panjaitan et al, 2020; Simões et al, 2006, 2007; Talebi et al, 2012; Thibier et al, 1981). Therefore, returning natural estrous behaviours or cycles in refed Kacang goats might indicate that the refeeding induced ovarian follicular development.…”

Section: Resultsmentioning

confidence: 91%

Influence of refeeding on production, blood biochemistry parameters, and reproduction in underfed Kacang goat does

Widiyono

Yanuartono

Purnamaningsih

et al. 2022

Animal Physiology Nutrition

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This research aimed to investigate the effect of refeeding on production, blood biochemical parameters, and reproduction in underfed Kacang goat does. Twelve 2-3year-old Kacang goats scored (body condition score [BCS]: 1-1.5) with poor body condition but appeared healthy, gave normal births 3-4 months before but no longer nursing their youngs, and anestrus were used in this study. The experiment consisted of 110 days with 14 days of adaptation period and 96 days of feeding treatment and data collection. After the adaptation period, the animals were divided into two groups (A and B), with six animals each. During the first 40 days (underfeeding period), they were fed with kangkong (Ipomoea reptans) straw at a level of 2% of body weight (BW).For the following 56 days (refeeding period), each animal in group A was fed at the level of 4% BW per day while group B was fed at the level of 5% BW per day consisting of 50% kangkong straw and 50% concentrate. Feed intake, average daily gain, body condition, and estrus were assessed in the period of underfeeding and refeeding. Blood samples were collected at the end of the underfeeding and refeeding period for blood biochemical parameter analyses. During the underfeeding period, the animals were anestrous and had poor body condition (BCS: 1.17-1.33) and high serum levels of cortisol, progesterone, and estradiol. Refeeding resulted in a significant increase in BCS (2.75-3.0), restoring estrous cycle, and reduced serum cortisol and progesterone level (p < 0.05). The Kacang goats had good compensatory growth.It could be concluded that refeeding at the level of 4-5% BW would restore undernourished goats' clinical condition, productivity, and reproductive performance after 8 weeks of refeeding.

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“…O estradiol além de induzir a onda de LH no pré-ovulatório (KARSH, 1983) provocando assim o estro, também influencia a síntese de progesterona e a duração do pulso de LH através do mecanismo estradiol-dependente (HARRIS, 1999;SKINNER, 2000). Esse mecanismo é ativado pela sustentação do aumento de estradiol de > 2 -4 pg/mL para 24 pg/mL em 48 horas (FOSTER, 1984), logo após a concentração plasmática de estradiol diminui para 12 -14 pg/mL (KAWATE, 2000;TALEBI et. al, 2012).…”

Section: Estradiol -17β (E 2 )unclassified

Desempenho de cabritas Saanen submetidas a diferentes níveis de energia na dieta: perfil metabólico e hormonal

Bomfim¹

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pela agradável convivência e ajuda no experimento. A adorável e carismática Carolina Tobias, pelos ensinamentos, almoços, pela ajuda na estatística, pelas caminhadas, risadas, pela amizade, pelos conselhos, ensinamentos e pela paciência. Ao meu amigo, ou melhor, irmão de alma que ganhei de presente em Pirassununga, Diogo de Lucca Sartori, obrigada por me aturar, pela amizade, pelos conselhos, pelas risadas e pelo ombro que tanto chorei. A Karina Ribeiro, pela acolhida logo que cheguei para fazer o mestrado, pelos almoços, risadas, choros e pela amizade. Aos tantos outros companheiros e amigos que encontrei em Pirassununga, que me aturaram e que me deram afago, amizade, felicidade e força para que esse trabalho fosse concluído com sucesso. Ao casal Magali e Beto e sua filha Sara que sempre foram muito gentis e amados comigo. Aos meus amigos de infância de Barra do Garças-MT, que sempre estiveram ao meu lado me dando apoio, amizade e conforto, principalmente aos amados Diego Cedro e Laís Lima, mesmo longe sei que estão por perto de alguma forma. Aos meus amigos de Campo Grande-MS, que sempre fazem parte da vida com muita alegria, companheirismo, afeto, definitivamente minha segunda família. A querida república Gaiola das Loucas em Jaboticabal, na qual pude ter o prazer de morar e compartilhar momentos tão adorados com todos. Aos queridos amigos de Jaboticabal-SP, que me acolheram e sempre me trataram com muito carinho, respeito e amor, em especial a Carla Harter e Bruno Biagioli, obrigada pela paciência, ensinamentos, apoio, risadas e conselhos. As queridas Simone Sartoretto e Rénne Oliveira que fazem minhas idas em São Paulo-SP, serem mais divertidas e adoráveis. A minha mãe branca Karla Santiago, gauchinha linda, obrigada pela amizade de hoje e sempre, pela parceria, paciência, conselhos e risadas. Aos meus irmãos lindos, queridos, inteligentes e amados, Ibrahim Cortada, Ricardo Galbiatti e Evellize Morara, obrigada por sempre se lembrarem de mim, por estarem sempre prontos para atender o celular quando eu ligo mesmo que de madrugada, pelas vezes que me ouviram chorar, pelos conselhos, pelas risadas, pelas festas, enfim, obrigada por estarem sempre comigo. As minhas crianças ou cabritas que sem elas não haveria experimento. Por último e não menos importante a Deus por sempre me guiar, dar força, paciência, fé e sabedoria.

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Steroid hormone profile of Markhoz does (Iranian Angora) throughout estrous cycle and gestation period

Cited by 7 publications

References 22 publications

Annual Change of Reproductive Hormones in Female Angora Goats

Annual Change of Reproductive Hormones in Female Angora Goats

Influence of refeeding on production, blood biochemistry parameters, and reproduction in underfed Kacang goat does

Desempenho de cabritas Saanen submetidas a diferentes níveis de energia na dieta: perfil metabólico e hormonal

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