Factors affecting semen characteristics and scrotal circumference in Damascus bucks

Al-Ghalban, Ahmed M; Tabbaa, M. J.; Kridli, Rami T.

doi:10.1016/j.smallrumres.2003.10.003

Cited by 71 publications

(28 citation statements)

References 16 publications

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“…In addition, fertility improved when using horned rather than polled bucks during the breeding season (Al-Ghalban et al, 2004;Rekik et al, 2012). However, the findings of the present study showed that the presence of horn did not significantly affect body weight, scrotal circumference, and TC (Table 1).…”

Section: Discussioncontrasting

confidence: 55%

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Relationships between physiological and behavioral responses of goat bucks in mating season

et al. 2016

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-The objective of this study was to determine the sexual parameters in young bucks with different sexual activity and the effect of experience (age) on sexual parameters in bucks. Fifteen young, sexually inexperienced (SI) and five adult, sexually experienced (SE) Saanen × Hair goat crossbred bucks were used in this study. Bucks were individually exposed to three estrus does for 15-min periods during four sexual performance tests, which were carried out every other day to determine some sexual behavior traits such as flehmen response, reaction time, and ejaculation efficiency. Sexually inexperienced young bucks were evaluated based on their sexual activity (active (AC) vs inactive (IA)) and presence of horn. It was found that AC bucks had significantly higher serum testosterone concentrations (31.5 vs 21.5 ng/mL) and weight loss (114.2 vs 51.2 g/day) than IA bucks. In addition, weight loss was significantly correlated with ejaculation efficiency in young bucks. On the other hand, horned bucks tended to have higher ejaculation efficiency with significantly longer reaction time than polled bucks. For experience (age) classes, SE bucks had higher testosterone concentration (76.0 vs 31.5 ng/mL) and weight loss (16.7 vs 8.6%) than SI active young bucks. However, the effect of experience on other sexual performance traits was found to be limited. Overall, these results indicate that testosterone concentration may affect sexual performance of young bucks in the mating season. Age-related sexual experience is not a determining factor for sexual performance in bucks. However, sexual performance data alone may not reflect reproductive outcomes without semen data.

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Section: Discussioncontrasting

confidence: 55%

“…A positive relationship between presence of horn and semen characteristics has been reported (Al-Ghalban et al, 2004). Better fertility results were observed when horned bucks were used (Rekik et al, 2012).…”

Section: Introductionmentioning

confidence: 88%

Relationships between physiological and behavioral responses of goat bucks in mating season

et al. 2016

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“…Selection of young rams for fertility can be accomplished through selecting some important reproductive traits such as age at puberty, body condition score, body growth rate, scrotal circumference, scrotal growth rate and semen quality [5]. There was a positive relationship between body weight, scrotal circumference and testicular weight [6] and in general increased testicular weight lead to produce good quality semen [7].…”

Section: Introductionmentioning

confidence: 99%

Baseline Study of Reproductive Performances of Indigenous Rams in Bangladesh

nesa¹,

Zohara²,

Bari³

et al. 2014

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10.0±0.4(kg), 3.2±0.1, 18.6±0.7(cm), respectively. The volume, density, mass motility, concentration were 1.2±0.0ml, 2.9±0.0, 4.3±0.0 and 4.1±0.7x10 9 , respectively. The rate of motility: 89. 0±0.2, 72.4±0.2, 62.0±0.6, viability: 91.8±0.1, 75.6±0.2, 64.8±0.6, functional integrity: 87.3±0.2, 69.1±0.2, 50.2±0.5 and normal spermatozoa were 94.0±0.1, 77.3±0.1 and 75.0±0.2 in fresh, chilled and frozen semen, respectively.

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“…Estos cambios incrementarían la libido de los machos y por consiguiente el número de montas efectivas durante la estación reproductiva. Los resultados obtenidos en este trabajo en la raza Criollo-Neuquina son coincidentes con lo observado en otras razas, sistemas de producción y latitudes (Al-Ghalban et al, 2004;Todini et al, 2007;Zarazaga et al, 2009;Carrillo et al, 2010;Hammoudi et al, 2010), evidenciando una variación estacional en los parámetros analizados.…”

Section: Ctunclassified

Estacionalidad reproductiva en machos caprinos Criollo-Neuquinos de la Patagonia Argentina

et al. 2012

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ADDITIONAL KEYWORDSSexual behavior. Buck semen. Libido. PALABRAS CLAVE ADICIONALESCapacidad de servicio. Semen caprino. Libido. RESUMENDebido a la gran población caprina y a la identidad genética del caprino Criollo de la provincia de Neuquén, en la Patagonia Argentina, se consideró la necesidad de profundizar el conocimiento sobre los aspectos reproductivos del macho. Durante un año, diez machos adultos mantenidos bajo condiciones extensivas de manejo y fotoperíodo natural (41º S) fueron evaluados en sus parámetros reproductivos. Se determinaron mensualmente las siguientes variables: peso vivo (PV), circunferencia testicular (CT), total de espermatozoides en el eyaculado (TEE), porcentaje de machos con capacidad de servicio (PMCS) y media de montas efectivas (MME). El PV y la CT presentaron un marcado incremento durante el período primavero-estival, alcanzando sus valores máximos en febrero, a los dos meses después del solsticio de verano (68,1 kg y 34 cm, respectivamente). En el período otoño-invernal, dos meses después que la circunferencia testicular alcanzara su máximo desarrollo, se evidenció el máximo valor del TEE en abril (5213 millones). El PMCS y la MME variaron a lo largo del año, alcanzando los valores medios más altos en el trimestre abril-junio (100% y 3 montas efectivas, respectivamente). Los valores medios más bajos para estas variables se presentaron en el trimestre septiembre-noviembre (53% y 1,7 montas, respectivamente). Las variables PV, CT, TEE, PMCS y MME se correlacionaron en forma positiva entre sí. La actividad reproductiva del caprino CriolloNeuquino presentó una variación estacional, evidenciando su máxima expresión en el trimestre abril-junio (otoño) y manifestando un período de baja actividad reproductiva en el trimestre septiembre-noviembre (primavera).

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Factors affecting semen characteristics and scrotal circumference in Damascus bucks

Cited by 71 publications

References 16 publications

Relationships between physiological and behavioral responses of goat bucks in mating season

Relationships between physiological and behavioral responses of goat bucks in mating season

Baseline Study of Reproductive Performances of Indigenous Rams in Bangladesh

Estacionalidad reproductiva en machos caprinos Criollo-Neuquinos de la Patagonia Argentina

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