Bibliografías temáticas / Silent Estrus

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Literatura académica sobre el tema "Silent Estrus"

Autor: Grafiati
Publicado: 7 de junio de 2025
Última modificación: 2 de agosto de 2025

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Artículos de revistas sobre el tema "Silent Estrus"

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Souhayla O. Hussain and Jawad K. Taher. "Study of estrogen, progesterone and glucose level in cows during overt and silent estrus." University of Thi-Qar Journal of agricultural research 11, no. 1 (2022): 79–83. http://dx.doi.org/10.54174/utjagr.v11i1.163.

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Significant economic losses result from increased days open because of failure to detect estrus. Studies (Callahan, et al., 1971; Kesler,et al., 1977) suggest that the endocrine balances required to support normal estrus cycles and for the reestablishment of fertility are restored gradually after calving. Silent estrus, or the lack of behavioral estrus expression, is a common occurrence (50 to 80%) at the first postpartum ovulation. However, the incidence of silent estrus decreases in the second and third estrous cycles (Bulman,1980 ; Labhsetwar, et al., 1946; Morrow, et al., 1966). Expression
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Liu, Wenju, Chao Du, Liangkang Nan, et al. "Influence of Estrus on Dairy Cow Milk Exosomal miRNAs and Their Role in Hormone Secretion by Granulosa Cells." International Journal of Molecular Sciences 24, no. 11 (2023): 9608. http://dx.doi.org/10.3390/ijms24119608.

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Estrus is crucial for cow fertility in modern dairy farms, but almost 50% of cows do not show the behavioral signs of estrus due to silent estrus and lack of suitable and high-accuracy methods to detect estrus. MiRNA and exosomes play essential roles in reproductive function and may be developed as novel biomarkers in estrus detection. Thus, we analyzed the miRNA expression patterns in milk exosomes during estrus and the effect of milk exosomes on hormone secretion in cultured bovine granulosa cells in vitro. We found that the number of exosomes and the exosome protein concentration in estrous
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BALAGANUR, KRISHNAPPA, S. S. MISRA, AJIT SINGH MAHLA, et al. "Comparative assessment on the effect of long vis-à-vis short-term progesterone priming on reproductive attributes in silent estrus goats." Indian Journal of Animal Sciences 94, no. 10 (2024): 866–70. http://dx.doi.org/10.56093/ijans.v94i10.151044.

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Silent estrus results in spread-out kidding and extended inter-kidding interval in goats. Progesterone (P4) priming for 12-14 days could be one of the approaches for estrus induction with optimum fertility. The present work was carried to comparatively assess the duration of P4 priming on estrus and fertility in silent estrus goats. Sirohi does (n=18) with a history of anestrus and high basal P4 in paired samples were equally divided into three groups. Does in P-0 d group received 200 IU of equine chorionic gonadotropin by intramuscular route. Does in group second and third were subjected to p
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Kharel, C. N., B. Devkota, S. K. Sah, and R. K. Karki. "Evaluation of Ovsynch Protocol on Reproductive Performance of Anestrous Buffaloes during Breeding Season in Chitwan, Nepal." Nepalese Veterinary Journal 34 (December 21, 2017): 41–50. http://dx.doi.org/10.3126/nvj.v34i0.22902.

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This study evaluated the effectiveness of Ovsynch/FTAI protocol (day 0 fertirelin inj. 100μg I/M, day 7 cloprostenol inj. 500μg I/M, day 9 fertirelin inj. 100μg I/M, and day 10 fixed time artificial insemination 18 hours after second injection of fertirelin) in anestrous buffaloes of Chitwan, Nepal (n=14). Protocol was evaluated in terms of estrus characteristics, ovulation and pregnancy rate. Responses were analyzed by grouping the buffaloes based on type of anestrus, length of anestrus, body condition score (BCS), milking status, parity, age, management condition, follicle count on day of se
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Melia, J., R. A. Sarah, E. Rahmi, D. Dasrul, and H. Sofyan. "Gayo horse’s estrogen concentration after pospartum silent heat therapy using intramuscularly vitamin A, D, E." IOP Conference Series: Earth and Environmental Science 1356, no. 1 (2024): 012039. http://dx.doi.org/10.1088/1755-1315/1356/1/012039.

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Abstract Silent heat is a condition in which livestock does not show symptoms of heat but physiologically estrus occurs due to low concentrations of the estrogen. Vitamins are small organic compounds that are needed by horses for the process of development, reproduction, and activity. Vitamin preparations are easily obtained and economically for breeders. This research aimed to observe differences in estrogen concentrations in postpartum silent heat gayo horses before and after therapy using intramuscularly vitamins A, D, E. Four of six gayo mares suspected of postpartum silent heat after diag
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KUMAR, HARENDRA, NEERU BHOOSHAN, R. S. DASS, and S. NANDI. "Supplementation of area specific mineral mixture improves the reproductive performance in buffaloes—a field study." Indian Journal of Animal Sciences 82, no. 10 (2012): 1245–47. http://dx.doi.org/10.56093/ijans.v82i10.24320.

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In a field trial the efficacy of area specific mineral mixture (ASMM) supplementation on reproductive efficiency in buffaloes was assessed. Out of the 280 buffaloes examined, 220 had postpartum anestrus (40%) and repeat breeding (20%) followed by delayed sexual maturity (20%), silent heat (10.9%) and endometritis of mild to moderate degree (9.09%). Among the postpartum anestrus buffaloes 52.27% and 45.65% exhibited estrus and conceived, respectively, within 3 months of ASMM supplementation. Among the repeat breeders, which received the ASMM, 38.63% conceived within 3 inseminations. Onset of es
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Abulaiti, Adili, Zahid Naseer, Zulfiqar Ahmed, Dong Wang, Guohua Hua, and Liguo Yang. "Effect of Different Synchronization Regimens on Reproductive Variables of Crossbred (Swamp × Riverine) Nulliparous and Multiparous Buffaloes during Peak and Low Breeding Seasons." Animals 12, no. 4 (2022): 415. http://dx.doi.org/10.3390/ani12040415.

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The present study was conducted to examine the effect of conventional the Ovsynch protocol (OVS) and a modified Ovsynch synchronization (GPGMH) protocol on the follicular dynamics, estrus, ovulation, and pregnancy in nulliparous and multiparous crossbred (swamp × riverine) buffaloes during different seasons. GPGMH or OVS protocols were used to synchronize nulliparous (n = 128; GPGMH = 94, OVS = 34) and multiparous (n = 154; GPGMH = 122, OVS = 32) buffaloes during the peak (n = 186; GPGMH = 143, OVS = 43) and low breeding (n = 96; GPGMH = 73, OVS = 23) seasons. Buffaloes were monitored for foll
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Mishra, Rabindra Mohan, Sanjay Kumar Ravi, B. Balamurugan, et al. "Effect of Exogenous Human Kisspeptin-10 on Concentration of Estradiol, Progesterone and Its Response on Expression of Estrus Signs in Bhadawari Buffaloes." UTTAR PRADESH JOURNAL OF ZOOLOGY 46, no. 6 (2025): 156–68. https://doi.org/10.56557/upjoz/2025/v46i64853.

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Kisspeptin is identified as a neuropeptide having its response on various endocrines leading to significant impact on reproductive physiology in livestock. The aim of the research was to evaluate the effect of Human Kisspeptin-10 (hKp10) on the concentration of plasma estradiol (E2), progesterone (P4) and visual estrus signs in cyclic Bhadawari buffalo. Four cyclic Bhadawari buffaloes pre-fitted with jugular cannula were administered hKp10 @ 1.5, 2.5, 5 µg/ kg body weight (bw) and 2ml normal saline (NS) as a control on D10 of estrous cycle (D0- Day of estrus) in a fashion that none of the buff
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Efendy, Jauhari, and Frediansyah Firdaus. "Deskripsi dan fenomena yang terjadi pada perkawinan alami sapi Peranakan Ongole (PO) dengan sapi Bali di Kandang Percobaan Loka Penelitian Sapi Potong." Livestock and Animal Research 19, no. 1 (2021): 54. http://dx.doi.org/10.20961/lar.v19i1.41835.

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<p><strong>Objective:</strong> To determine the natural mating behavior pattern of PO bulls with Bali cows in the cattle breeding system using freestall housing of “Litbangtan Model”.</p><p><strong>Methods:</strong> The materials were 63 livestock; 3 PO bulls and 60 Bali cows. The study was designed with a randomized block design (RBD) with three treatments based on the physiological status of Bali cows; namely Treatment A: 20 heifers, Treatment B: 10 heifers and 10 cows, and Treatment C: 20 cows. The parameters observed were the pattern of estrous beh
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Rodrigues, Paula de Almeida, Lia de Alencar Coelho, Keico Okino Nonaka, et al. "Annual characteristics of estrous activity in wool and hair ewe lambs under subtropical conditions." Scientia Agricola 64, no. 5 (2007): 468–75. http://dx.doi.org/10.1590/s0103-90162007000500003.

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The increased emphasis placed on lamb production in Brazil points to the need for a better knowledge of the annual pattern of reproductive activity in ewe lambs. This study evaluates the annual estrous activity pattern of hair and wool ewe lambs raised in southeast Brazil. Estrous characteristics were recorded for 12 months in ten Santa Inês and 21 Romney Marsh and Suffolk ewe lambs. Santa Inês ewe lambs exhibited a greater length of the normal estrous cycle (14 to 19 days) than Romney Marsh and Suffolk ewe lambs (17.0 ± 0.1 days vs. 16.5 ± 0.2 and 15.9 ± 0.2 days). All the ewe lambs presented
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Tesis sobre el tema "Silent Estrus"

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Kulaga, Vivian. "Fatty Acid Ethyl Esters (FAEE), A Biomarker of Alcohol Exposure: Hope for a Silent Epidemic of Fetal Alcohol Affected Children." Thesis, 2008. http://hdl.handle.net/1807/17788.

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One percent of children in North America may be affected by fetal alcohol spectrum disorder (FASD). FASD remains difficult to diagnose because confirmation of maternal alcohol use is a diagnostic criterion, and women consuming alcohol during pregnancy are reluctant to divulge this information for fear of stigmatization and losing custody of the child. Consequently, using a biomarker to assess alcohol exposure would provide a tremendous advantage. Recently, the measurement of fatty acid ethyl ester (FAEE) in hair has provided a powerful tool for assessing alcohol exposure. My thesis fills a t
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Capítulos de libros sobre el tema "Silent Estrus"

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Moral Andrés, Fernando, and Elena Merino Gómez. "Memorias críticas en la ciudad pública contemporánea: tres obras de Alfredo Pirri." In Cultura (audio)visual y espacios públicos: (re)inventando la Ciudad. Université de Limoges, 2024. http://dx.doi.org/10.25965/ebooks.915.

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Alfredo Pirri es uno de los artistas de mayor relevancia en el panorama europeo actual. Su obra se ha desarrollado en forma de pintura, escultura, escenografía y arquitectura, por citar algunas de las disciplinas trabajadas en su trayectoria desde los años 80 del siglo pasado. En estos momentos más recientes ha ejecutado, parcialmente, un grupo de tres obras focalizadas en torno a la construcción de la memoria en espacios públicos claves de Roma, Turi, Tirana y Florencia. Sus proyectos Fuoco – Cenere – Silenzi, Compagni e Angeli y Prospettive con Orizzonti, parten de acontecimientos particular
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HO, TSE-LOK, and GEORGE A. OLAH. "Silane/iodine-based cleavage of esters and ethers under neutral conditions." In World Scientific Series in 20th Century Chemistry. World Scientific Publishing Company, 2003. http://dx.doi.org/10.1142/9789812791405_0169.

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Aguilar Ramirez, Johan Denis, Jhonatan Hinojosa Mamani, Alexander Aguilar Ramirez, et al. "CARACTERIZACIÓN Y MEJORA DE PROPIEDADES DE BIOCOMPUESTOS DE EPOXI REFORZADOS CON FIBRAS NATURALES." In Ciência das Plantas: desafios e potencialidades em pesquisa. Editora Científica Digital, 2023. http://dx.doi.org/10.37885/231014634.

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Objetivo: El propósito de este estudio es investigar y caracterizar materiales compuestos de epoxi reforzados con diversas fibras naturales, incluyendo henequén, abaca, banana y piña, con un enfoque en la mejora de sus propiedades mecánicas y térmicas. Métodos: Se empleo el tratamiento alcalino y el tratamiento con silano, con el fin de mejorar la adhesión entre las fibras y la matriz de epoxi. Además, se evaluaron diferentes concentraciones de fibras naturales en los compuestos de epoxi para comprender su impacto en las propiedades finales. Resultados: Se demostraron que los materiales compue
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Taber, Douglass. "Functional Group Transformations." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0004.

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Jeffrey C. Pelletier of Wyeth Research, Collegeville, PA has developed (Tetrahedron Lett. 2007, 48, 7745) a easy work-up Mitsunobu procedure for the conversion of a primary alcohol such as 1 to the corresponding primary amine 2. Shlomo Rozen of Tel-Aviv University has taken advantage (J. Org. Chem. 2007, 72, 6500) of his own method for oxidation of a primary amine to the nitro compound to effect net conversion of an amino ester 3 to the alkylated amino ester 5. Note that the free amine of 3 or 5 would react immediately with methyl iodide. Keith A. Woerpel of the University of California, Irvin
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Taber, Douglass F. "C–C Bond Construction: The Zhu Synthesis of Goniomitine." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0023.

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Non-enolizable β-keto esters such as 3 are fragile and difficult to prepare. Karl J. Hale of Queen’s University Belfast devised (Org. Lett. 2013, 15, 370) soft enolization con­ditions for methoxycarbonylation of 1 with 2. Zheng Huang of the Shanghai Institute of Organic Chemistry coupled (Org. Lett. 2013, 15, 1144) 4 with 5 under Ir catalysis to make 6. Tomoya Miura and Masahiro Murakami of Kyoto University combined (Angew. Chem. Int. Ed. 2013, 52, 3883) the diazo precursor 8 with the allylic alco­hol 7 to give 9, the product of Claisen rearrangement. Tsuyoshi Satoh of the Tokyo University of
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Taber, Douglass F. "The Herzon Synthesis of (−)-Acutumine." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0085.

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The alkaloid (−)-acutumine 3, isolated from the roots of the Chinese moonseed Sinomenium acutum, improves object and social recognition in the Wistar rat model. With four rings and three adjacent, fully-substituted stereogenic centers, 3 presents a significant synthetic challenge. Seth B. Herzon of Yale University assembled (Angew. Chem. Int. Ed. 2013, 52, 3642) 3 by the intramolecular Sakurai cyclization of 1 to 2. The convergent preparation of 1 required the alkyne 10. The literature construc­tion (Org. Lett. 2005, 7, 5075) by A. B. Smith III of the enone 7 from ribose 4 began with protectio
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Actas de conferencias sobre el tema "Silent Estrus"

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Heymans, Denis, Catherine Romanowska, and Marcelo Herszenhaut. "Novel Isocyanate-Free Resins for 1- and 2K Protective Coatings." In Coatings+ 2019. SSPC, 2019. https://doi.org/10.5006/s2019-00024.

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Abstract Environmental, market, and cost pressures have led to the development of alternatives to conventional 2K polyurethane topcoats, including isocyanate-free binders. For example, 1- and 2K coating systems based on alkoxysilane chemistry find increased use in protective coatings. Besides conventional acrylic monomers, polymer chemists have at their disposal various versatile building blocks, such as neoacid derivatives. Neoacid esters are widely used to upgrade solvent- and waterborne resins for both decorative and protective coatings. Among other benefits, these very hydrophobic monomers
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Informes sobre el tema "Silent Estrus"

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Rueda Ramos, Laura. ESTUDIO PETROGRÁFICO Y GÉNESIS DE LAS CONCRECIONES CARBONÁTICAS (SEPTARIAS) DE LA CAPA DE MARGAS DE ALCORLO (TURONIENSE MEDIO) EN EL SINCLINAL DE TORTUERO (GUADALAJARA, ESPAÑA). Ilustre Colegio Oficial de Geólogos, 2022. http://dx.doi.org/10.21028/lrr.2022.07.04.

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Las concreciones carbonáticas de tipo septaria objeto del presente estudio se localizan en las proximidades de Tortuero (Guadalajara), en el flanco noroeste (NO) de un sinclinal tumbado en el límite entre el Dominio nororiental del Sistema Central Español y la Cuenca de Madrid. Las concreciones se encuentran en facies mixtas correspondientes a la Capa de Margas de Alcorlo (Turoniense Medio, Cretácico Superior). Esta unidad pertenece a la Mesosecuencia I del Cretácico Superior y corresponde a un máximo regresivo. La metodología empleada para la caracterización mineral y textural ha permitido in
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