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Relevant bibliographies by topics / Androstenona

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Journal articles

Academic literature on the topic 'Androstenona'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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Journal articles on the topic "Androstenona"

1

Louveau, Isabelle, Michel Bonneau та D. B. Gower. "Biosynthesis of 16-androstene steroids and testosterone by porcine testis tissue in vitro: effect of age and relationships with fat 5α-androstenone levels in vivo". Acta Endocrinologica 125, № 5 (1991): 526–31. http://dx.doi.org/10.1530/acta.0.1250526.

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Abstract. The relationships between testicular 16-androstene and testosterone formation in young pigs and levels of 5α-androstenone in fat exhibited at older ages were investigated. Testis tissue samples were taken from Large White male pigs at 75, 100 and 125 days of age (8 pigs per age group) and incubated with a mixture of [3H]progesterone and [14C]pregnenolone. 5α-androstenone levels in fat were measured in all 24 pigs at 125, 145 and 170 days of age. Less androstadienone, more 3α-androstenol and 11-fold more 3β-androstenol + androstadienol were synthesized from pregnenolone than from prog

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2

Lukić, Boris. "PRIMJENA GENOMSKIH INFORMACIJA U SELEKCIJI NERASTA NA KONCENTRACIJE SKATOLA I ANDROSTENONA." Poljoprivreda 21, no. 2 (2015): 78–80. http://dx.doi.org/10.18047/poljo.21.2.14.

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3

BRENNAN, J. J., P. J. SHAND, M. FENTON, L. L. NICHOLLS, and F. X. AHERNE. "ANDROSTENONE, ANDROSTENOL AND ODOR INTENSITY IN BACKFAT OF 100- AND 130-KG BOARS AND GILTS." Canadian Journal of Animal Science 66, no. 3 (1986): 615–24. http://dx.doi.org/10.4141/cjas86-068.

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Forty-nine boars and 13 gilts were fed ad libitum from 20 to 100 kg body weight. Fifteen boars and four gilts were slaughtered at 100 kg and the remaining animals were fed ad libitum or at 70% of ad libitum feed intake from 100 kg liveweight until they were slaughtered at 130 kg. Backfat samples were collected from the lumbar region of all pig carcasses at both slaughter weights, vacuum packaged and stored at −20 °C. Fat samples (10 g) were saponified and extracted with hexane and ether. Extracts were evaporated under nitrogen, and androstenol (5α-androst-16-en-3α-ol; 5α-androst-16-en-3β-ol) a

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4

Martinez, B., C. Vieira, B. Rubio, et al. "Efecto del nivel de androstenona en chorizos elaborados a partir de cerdos enteros." Archivos de Zootecnia 67, Supplement (2018): 213–16. http://dx.doi.org/10.21071/az.v67isupplement.3607.

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Como consecuencia de los cambios en la normativa europea sobre bienestar animal, en un futuro próximo la industria porcina podría afrontar la prohibición de la castración de lechones machos, lo que implicaría un riesgo medio o alto de obtener carne con olor sexual. La castración física afecta a la cantidad de grasa de depósito y a la composición de ácidos grasos de los tejidos magro y graso. Por lo tanto, el uso de cerdos enteros en la industria podría afectar al procesado y a la calidad de los productos cárnicos. El objetivo de este estudio fue evaluar el efecto del nivel de androstenona (AND

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5

Bone, Christine, Heidi Laderoute, Dyanne Brewer, Jocelyn Cameron, and E. James Squires. "91 The production of sulfated 16-androstene steroids by porcine Leydig cells and their potential role in the development of boar taint." Journal of Animal Science 97, Supplement_3 (2019): 77. http://dx.doi.org/10.1093/jas/skz258.159.

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Abstract Boar taint is a meat quality issue characterized by an off-odour or off-flavour in pork caused primarily by the accumulation of androstenone in the fat, but sensory estimates of boar taint do not always correlate with fat androstenone concentrations. However, these evaluations examine the sensory qualities of both the fat and lean tissue of heated pork products. Sulfated metabolites of androstenone are polar compounds that are abundantly produced by the Leydig cells of the testes, which may accumulate in more hydrophilic lean tissue. Therefore, the purpose of this study was to investi

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6

Booth, W. D., E. Diane Williamson, and R. L. S. Patterson. "16-androstene steroids in the submaxillary salivary gland of the boar in relation to measures of boar taint in carcasses." Animal Science 42, no. 1 (1986): 145–52. http://dx.doi.org/10.1017/s0003356100017839.

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ABSTRACTFifteen Large White boars were randomly allocated to three groups of five pigs. The boars were slaughtered over a period of time at one of three live weights: group 1 (pork weight), 63 to 68 kg (mean age 141 days), group 2 (bacon weight), 90 to 97 kg (mean age 203 days) and group 3 (heavy weight), 121 to 133 kg (mean age 268 days). Testes, bulbourethral glands, submaxillary salivary glands, blood and thoracic fat were taken from each pig and the glands weighed and steroids determined in extracts of the submaxillary glands, blood plasma and fat. Testosterone and the boar taint steroid,

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7

Bone, Christine, Jocelyn Cameron, and Jim Squires. "PSVII-33 Inter-Animal Variability in Androstenone Transport and the Potential Effect on the Development of Boar Taint." Journal of Animal Science 98, Supplement_4 (2020): 465. http://dx.doi.org/10.1093/jas/skaa278.809.

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Abstract Boar taint is a meat quality issue characterized by an off-odour or off-flavour in pork caused by the accumulation of androstenone in the fat. Our previous work demonstrated that androstenone binds non-specifically to albumin in the plasma and suggested that the binding affinity of androstenone might vary between individual animals, which may affect the subsequent development of boar taint. Therefore, the purpose of this study was to characterize the binding of androstenone in the plasma of animals with high and low fat androstenone concentrations to determine the effect of androsteno

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8

Bone, Christine, and E. James Squires. "The Binding of Free and Sulfated Androstenone in the Plasma of the Boar." Animals 11, no. 5 (2021): 1464. http://dx.doi.org/10.3390/ani11051464.

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Androstenone circulates in the plasma bound to albumin before accumulating in the fat, resulting in the development of boar taint. Androstenone sulfate is more abundant in the circulation than free androstenone; however, it is unclear how androstenone sulfate is transported in the plasma and if steroid transport affects the development of boar taint. Therefore, the purpose of this study was to characterize the binding of androstenone sulfate in boar plasma and determine if variability in steroid binding affects the accumulation of androstenone in the fat. [3H]-androstenone sulfate was incubate

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9

Doran, E., J. D. McGivan, M. F. Whittington, and J. D. Wood. "The molecular mechanisms of inhibitory effect of androstenone on hepatic skatole metabolism in relation to boar taint." Proceedings of the British Society of Animal Science 2005 (2005): 36. http://dx.doi.org/10.1017/s1752756200009479.

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Boar taint is off-odours in cooked pork from uncastrated male pigs. It is caused by an excessive accumulation of skatole and androstenone in backfat. Accumulation of skatole is due to a low expression and activity of hepatic enzyme CYP2E1. The mechanism of androstenone accumulation is not clear. It could be due to low activity and expression of 3ß-hydroxysteroid dehydrogenase (HSD), an enzyme metabolising androstenone in liver. On the basis of our previous in vivo experiments with castrated animals we suggest that accumulation of skatole is regulated by androstenone. Castrated pigs manifest lo

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10

Hernández-García, F. I., M. Izquierdo, A. I. Del Rosario, et al. "Adaptación de la inmunocastración a la montanera del macho de cerdo Ibérico: efectos en órganos reproductivos y características de canal." Archivos de Zootecnia 67, Supplement (2018): 97–100. http://dx.doi.org/10.21071/az.v67isupplement.3581.

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El fin voluntario de la castración de machos porcinos se prevé próximamente en la UE. Pero los protocolos habituales de inmunocastración (IC) necesitan ser modificados para los machos Ibéricos (IB) debido a su largo ciclo vital. Nuestro grupo desarrolló un protocolo de 3 dosis que pretendemos ajustar a la cronología de la montanera, basándonos en la hipótesis de que la uniformidad de la condición corporal al inicio de la montanera intensificará y homogeneizará la atrofia testicular. Machos IB puros (n=35) fueron alimentados de forma restringida durante la pre-montanera como es habitual. De ell

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