• 제목/요약/키워드: Rooster semen

검색결과 17건 처리시간 0.022초

Potential of watermelon (Citrullus lanatus) to maintain oxidative stability of rooster semen for artificial insemination

  • Jimoh, Olatunji Abubakar;Akinola, Micheal Olawale;Oyeyemi, Bolaji Fatai;Oyeyemi, Wahab Adekunle;Ayodele, Simeon Olugbenga;Omoniyi, Idowu Samuel;Okin-Aminu, Hafsat Ololade
    • Journal of Animal Science and Technology
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    • 제63권1호
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    • pp.46-57
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    • 2021
  • Fruits with antioxidant enrichment can be an economically affordable supplement for mitigating oxidative damage prone spermatozoa membrane pathologies. Computer-assisted sperm analyzer and oxidative status were utilized to evaluate the impact of watermelon (Citrullus lanatus) fortification of dextrose saline as diluent for rooster semen and fertility response of hens inseminated. Watermelon juice and dextrose saline were used to formulate diluent of 7 treatments consisting of unextended semen (positive control), 10%, 20%, 30%, 40%, 50% and only dextrose saline (negative control) designated as Treatments 1-7. Pooled semen was obtained from fertile roosters and equilibrated with diluents at ratio 1:2 in the various treatments and were evaluated using computer software coupled microscope and seminal oxidative status assay. 168 laying hens randomly divided into 7 treatment of 8 replicates and 3 hen per replicate. Hen were everted, and semen (2 × 108 Spermatozoa) deposited intra-vagina and eggs collected over 8 weeks to assess fertility and hatchability of eggs laid. The result obtained revealed that watermelon-dextrose saline rooster semen diluent enhanced progressive motility, sperm kinetics and lowered non-progressive motility in T2-T6 compared to T7 over the 3 hours of evaluation. Watermelon addition to rooster semen diluent enhance the antioxidant capacity of rooster semen and lowered lipid peroxide generation. The percentage fertility was highest in T3 (81.01%) and T4 (81.24%) with lowest value obtained in T7 (73.46%). The hatchability of eggs set of hens inseminated with undiluted semen (71.46%) was lower than values for hens inseminated with watermelon inclusive extended semen (75.71%-80.39%). The optimal inclusion of 30%-40% watermelon in dextrose saline diluent enhance rooster semen kinetics, seminal oxidative stability and egg fertility.

Increasing sperm production and improving cryosurvival of semen in aged Thai native roosters as affected by selenium supplementation

  • Supakorn Authaida;Ruthaiporn Ratchamak;Wuttigrai Boonkum;Vibuntita Chankitisakul
    • Animal Bioscience
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    • 제36권11호
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    • pp.1647-1654
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    • 2023
  • Objective: Aging roosters typically exhibit subfertility with decreasing semen quality, furthermore Thai native roosters reared in rural areas are raised for a longer duration than their usual lifespan. The present study therefore aimed to assess the effect of selenium supplementation as an antioxidative substance in diets to improve the semen cryopreservation of aged roosters. Methods: Semen samples were collected from young (n = 20) and aged (n = 20) Thai native roosters (Pradu Hang Dum) at 36 and 105 weeks of age when starting the experiment, respectively. They were fed diets either non-supplemented or supplemented with selenium (0.75 ppm). Fresh semen quality and lipid peroxidation of fresh semen was evaluated before cryopreservation using the traditional liquid nitrogen vapor method. Post-thaw sperm quality and fertility potential were determined. Results: Advancing age is unrelated to decreasing fresh semen quality (p>0.05). However, lipid peroxidation in rooster semen depended on age, and the malondialdehyde (MDA) concentration increased in aged roosters (p<0.05). Selenium supplementation in diets significantly decreased the MDA concentration and increased the sperm concentration (p<0.05). In contrast, cryopreserved semen was affected by advancing rooster age, and selenium influenced sperm quality (p<0.05). Younger roosters had higher post-thaw sperm quality and fertility potential than aged roosters (p<0.05). Likewise, diet selenium supplements improved post-thaw sperm quality and fertility compared with the non-supplement group. Conclusion: Rooster's age does not influence the rooster sperm quality of fresh semen, while sperm cryotolerance and fertility were greater in young roosters than in aged roosters. However, sperm of aged roosters could be improved by dietary selenium supplementation.

Evaluation of rooster semen quality using CBB dye based staining method

  • Kim, Sung Woo;Lee, Jae-Yeong;Kim, Chan-Lan;Ko, Yeong Gyu;Kim, Bongki
    • 한국동물생명공학회지
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    • 제37권1호
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    • pp.55-61
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    • 2022
  • The acrosome cap allows sperm to penetrate the egg membrane and produce male pronuclei within female chicken eggs, facilitating successful fertilization. Given this, it is important to establish practical methods for evaluating the integrity of the acrosome cap and thus the quality of the rooster's sperm. There are several established methods for evaluating the acrosomes of mammalian sperm, but none of these methods are suitable for evaluating the acrosome status of rooster spermatozoa. Therefore, a simplified method for evaluating the rooster acrosome is needed. Here we evaluated the usefulness of CBB (coomassie brilliant blue) staining of the acrosome at concentrations of 0.04%, 0.08%, and 0.3% CBB solutions. Our data revealed a clear staining pattern for intact acrosome caps at 0.04% and 0.08% CBB but not at 0.3% CBB. This protocol revealed differences in acrosome integrity between fresh and frozen rooster sperm smears suggesting that CBB staining may facilitate easier semen evaluation in roosters. This protocol allows for the accurate differential staining of acrosome cap in rooster spermatozoa.

정액의 액상보존이 닭의 정액성상 및 수정율에 미치는 영향 (Effects of Liquid Rooster Sperm on Reproductive Ability in Chicken)

  • 김학규;나재천;최철환;장병귀;상병돈;이상진;한만희;박창식;이규승
    • 한국가금학회지
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    • 제30권2호
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    • pp.129-134
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    • 2003
  • 정액의 액상보존이 닭의 번식능력에 미치는 영향을 구명하기 위하여 계통이 분명한 재래닭을 정액 채취용 수탉으로 사용하였으며 인공수정용 암닭으로는 백색산란계를 사용하였다. 닭 정액을 채취 희석하여 5$^{\circ}C$ 냉장온도에서 6, 30, 54 시간보존하며 정액성상 검사와 함께 인공수정을 하였을 때, 원정액과 skim milk glucose액, egg yolk glucose액 및 saline에 희석된 정액의 정자운동성은 냉장보관 6 시간에는 처리간에 유의적인 차이가 없었으나, 냉장보관 30 및 54 시간에는 저하되는 경향이었다 그러나 skim milk glucose액과 egg yolk glucose액의 정자운동성과 정상정자율은 30 및 54 시간 냉장 보존을 하여도 원정액이나 saline액보다 현저히 높았으며 (P<0.05), 수정율에 있어서는 6, 30 및 54 시 간 냉장보존된 skim milk glucose희석정액에서 90.77, 87.70 및 59.46% 를 나타내어 다른 시험구보다 현저하게 우수한 결과를 보였다 .(P<0.05). 따라서 본 연구결과 skim milk glucose액은 닭의 액상정액 인공수정시 산업적 이용이 가능하다고 판단된다.

Improvement of rooster semen freezability and fertility rate after sericin supplementation in freezing semen extender

  • Ruthaiporn Ratchamak;Supakorn Authaida;Wuttigrai Boonkum;Vibuntita Chankitisakul
    • Animal Bioscience
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    • 제36권10호
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    • pp.1530-1535
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    • 2023
  • Objective: Semen cryopreservation result in decreased sperm parameters and fertilization ability. Sericin exhibits antioxidant activity by reducing lipid peroxidation resulting from free radicals, which can potentially improve cryopreservation outcomes. The present study aimed to examine the efficacy of various sericin concentrations supplemented with a rooster semen-freezing extender on post-thaw semen quality and fertilizing ability of sperm after cryopreservation. Methods: Semen samples were collected from 40 roosters (5 reps), then were pooled, and divided into four groups by the levels of sericin supplementation (0%, 0.25%, 0.50%, and 0.75%) in a freezing extender. Semen suspensions were loaded in medium straw (0.5 mL) and cryopreserved with the traditional liquid nitrogen vapor method. Post-thawed semen was evaluated for sperm motility, sperm viability, and lipid peroxidation. Also, the fertility test was determined. Results: The results showed that supplementation of the freezing extender with 0.50% to 0.75% sericin resulted in greater total motility and progressive motility and lower malondialdehyde levels than the other groups after cryopreservation (p<0.05). However, the viability of 0.75% decreased compared with the value of 0.50% sericin supplementation (p<0.05). Moreover, the fertility and hatchability of total eggs were significantly higher in the 0.50% sericin group than in the other groups (p<0.05). Conclusion: In conclusion, 0.50% sericin is recommended as an alternative component of the freezing extender to improve cryopreserved rooster semen.

닭 동결정액 융해방법이 정자 운동성에 미치는 영향 (Motility of Rooster Spermatozoa under Different Thawing Conditions)

  • 김성우;최승례;고응규;전익수
    • 한국가금학회지
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    • 제45권4호
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    • pp.237-244
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    • 2018
  • 본 연구에서는 닭 동결 정액의 융해 방법에 따라 정자 운동성의 변화도를 분석하였고, 적절한 융해방법에 대한 자료를 확보하였다. 동결정액을 융해하는 방법은 축종에 따라 서로 다른 열전달 효율을 제시하기도 하나, 닭 동결 정액에 대한 연구는 미진한 상태이다. 특히 닭 정액은 고 농도의 정액을 필요하기 때문에 이러한 요인에 대한 정자 운동성은 변이가 많은 것으로 알려져 있다. 그러므로, 닭 정액 융해에 필요한 온도는 $5^{\circ}C$임을 알 수 있었으며, 닭 농장에서 동결정액의 융해를 실시할 때, 알코올이 함유된 냉각수를 이용하게 되면 냉각수의 과냉각 생태를 방지할 수 있음을 관찰하였다. 또한, 동결정액을 이용한 인공수정을 실시할 때, 현장에서 직접 닭 정액을 융해하여 시간을 절약할 수 있으며, 인공 수정 작업시간이 30분을 넘기게 되면 정자의 운동성은 감소하여 수정율에 영향을 미치는 것으로 판단된다. 그러므로, 농가에서 동결정액을 활용할 경우, 융해에 신경을 써야 하며 정확한 방법을 적용하여야 수정란의 부화율 감소현상을 막을 수 있을 것으로 보인다. 이와 같이 본 연구에서 제시된 방법으로 동결정액을 이용할 때, 동결정액의 수정율이나 부화율의 변이를 막을 수 있고, 동결 정액을 활용한 가금종축생산 효율이 높아질 것으로 판단된다.

닭 신선 정자 운동성과 첨체안정성에 보존 온도, 희석제 및 용기가 미치는 영향 (Effects of Temperature, Diluents, and Plastic Tubes on the Motility and Acrosome Intactness of Fresh Rooster Semen)

  • 김성우;이재영;김찬란;고응규;이성수
    • 한국가금학회지
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    • 제48권4호
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    • pp.185-191
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    • 2021
  • 닭 정자는 저온 환경에서 생존하는 능력을 보유하고 있으나 정자의 운동성과 첨체 손상에 대한 연구는 상세히 알려져 있지 않다고 판단된다. 본 연구에서는 닭 정자를 BPSE 및 Lake 희석액으로 희석하고 보존 용기를 1.5 mL e-tube와 0.5 mL 스트로에 보존하여 정자 장수성을 조사하였다. 밀봉된 0.5 mL 스트로에 보존된 정자의 운동성이 3일동안 저온보존 시 더 높은 것으로 관찰되었다(68.6±3.1% vs. 22.1±5.7%). BPSE로 희석하여 0.5 mL 스트로에 보존된 닭 정자의 운동성 또한 Lake 희석액보다 더 높게 관찰되었다(57.7±5.6% vs. 37.7±5.4%). 첨체 온전성도 0.5 mL 스트로에 보존하는 것이 우수하였고 냉장보존일이 증가함에 따라 손상된 첨체 비율이 증가하였다. 본 연구에서 0.5 mL에 밀봉된 닭 정자는 저온 보존에 이용될 수 있으며 정자의 운동성을 높여주며 첨체 온전성을 증가시키는 것으로 관찰되었다.

BSA 또는 Fatty Acid Free BSA 첨가가 닭 희석 정자와 동결 정자의 생존성에 미치는 영향 (The Effects of Supplementation of BSA or Fatty Acid Free BAS on the Motility of Fresh or Cryopreserved Rooster Spermatozoa)

  • 김성우;김민수;유연희;김찬란;전익수;김종대
    • 한국가금학회지
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    • 제44권1호
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    • pp.59-65
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    • 2017
  • 본 연구에서는 닭 정액의 운동성 분석에 미치는 요인을 분석하기 위하여 희석배율에 따른 생존성을 조사하고, 신선정액의 희석 시에 필요한 조건을 확보하기 위하여 희석제에 단백질원으로서 BSA와 FAF-BSA의 첨가가 닭정자의 생존성에 미치는 영향을 관찰하였다. 최종 희석율이 1/4이 되도록 닭 정액을 희석하여 생존성을 조사하면 신선정액에서 희석율이 1/8, 1/16 및 1/32로 낮아질수록 89.9%, 69.9% 및 53.2%로 생존율이 낮아지는 것을 관찰하였으며, 단백질원으로 BSA나 FAF-BSA를 이용하면 생존율을 유의적으로 증진시킬 수 있음을 증명하였다. 또한 이러한 현상은 동결정액의 희석에도 중요한 요인으로 관찰되었는데, FAF-BSA를 이용하여 희석할 때 단백질이 없는 경우보다 양호한 생존율이 나타난다는 것을 관찰하였다(17.6% 대 34.0%). 그러나 단백질원을 활용하더라도 닭정액의 희석율이 낮아질수록 생존율이 저하하는 현상은 지속적으로 나타나고 있으며, 신선정액에 비하여 동결정액은 장수성이 낮은 것으로 추정되었다. 그러므로 본 연구에서 사용된 정자의 분석방법은 닭 정액동결을 실시하여 운동성을 분석할 때 필요한 기본 정보를 제공할 수 있을 것으로 판단되며, 닭 희석배율을 낮추어 동결정액의 효율성을 높이는 연구에 기여할 것으로 추정된다.

N-Methylacetamide 동결 보호제의 농도가 오계 동결 정액의 수정 및 부화율에 미치는 영향 (Effect of N-Methylacetamide Concentration on the Fertility and Hatchability of Cryopreserved Ogye Rooster Semen)

  • 김성우;최진석;고응규;도윤정;변미정;박수봉;성환후;김종대
    • 한국가금학회지
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    • 제41권1호
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    • pp.21-27
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    • 2014
  • 본 연구는 닭 정액의 동결 보존을 위하여 비 글리세롤성 동결 보호제 중 MA 농도가 정자의 생존율과 융해된 동결 정자를 인공수정을 실시하여 생산된 수정란의 수정율, 부화율을 조사하고자 실시하였다. 동결 보조제로써 MA의 효율성은 7%, 9% 및 11% 범위에서 동결을 실시하였을 때, 정자의 생존율은 $35.16{\pm}6.12%$, $67.83{\pm}15.3%$$66.2{\pm}16.3%$로 관찰되었으며, 융해된 정자를 인공수정을 실시하여 생산된 수정란의 수정율은 21.5%, 34.7% 및 25%로 관찰되었으며, 수정된 수정란의 부화율은 100%, 89.5% 및 87.5%로 관찰되었다. 대조군으로써 신선 정액은 수정율이 96.0%로 관찰되었고, 부화율은 92.2%로 관찰되었다. 9% MA를 이용한 간이 동결법으로 생산된 동결 정자를 이용하여 3주간 수정란을 검사하였을 때, 수정율은 비록 35.3%로 관찰되었으나, 부화율은 90.3%로 관찰되었다. 이러한 결과에 따르면, 9% 농도로 MA 동결 보호제를 이용할 경우, 동결 및 융해된 정자를 이용하여 생산된 수정란에서 수정율을 감소시킬 수 있음을 보여주고 있으며, 부화율에는 영향을 주지 않음을 추정할 수 있다. 그러므로 수정율과 부화율에 나쁜 영향을 미치지 않고 가금 유전자원의 보존에 중요한 요인이 될 수 있는 적절한 농도의 MA 동결 보호제 범위는 7~9% 농도로 추정된다.

Enhancement of cryopreserved rooster semen and fertility potential after oral administration of Thai ginger (Kaempferia parviflora) extract in Thai native chickens

  • Vibuntita Chankitisakul;Supakorn Authaida;Wuttigrai Boonkum;Sarunya Tuntiyasawasdikul
    • Animal Bioscience
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    • 제37권7호
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    • pp.1177-1184
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    • 2024
  • Objective: Semen cryopreservation is an effective method of preserving genetic material, particularly in native chicken breeds facing a substantial decline. In this study, we evaluated the quality of frozen/thawed rooster semen treated with different concentrations of oral administrations of black ginger (Kaempferia parviflora: KP) extract and determined its fertility. Methods: Thirty-two Thai native roosters (Pradu Hang Dum, 42 weeks old) were used in this study. The treatments were classified into four groups according to the concentration of KP extract administered to the roosters: 0, 100, 150, and 200 mg/kg body weight. The quality of fresh semen was analyzed before cryopreservation. Post-thaw sperm quality and fertility potential were determined. Also, lipid peroxidation was determined. Results: The results showed that sperm concentration and movement increased in roosters treated with 200 mg/kg of KP extract (p<0.05). The malondialdehyde (MDA) in the roosters receiving 200 mg/kg KP extract was lower than that in the other but had an insignificant difference within the KP treatment groups (p>0.05). The highest MDA levels were observed in the control group (p<0.05). The percentage of motile sperm (total motility and progressive motility) after semen thawing was higher in roosters that received 150 and 200 mg/kg KP extract than in those that received 100 mg/kg KP extract and the control (p<0.05). MDA levels decreased significantly in roosters that received 150 and 200 mg/kg KP extract than in those that received 100 mg/kg KP extract and the control (p<0.05). Fertility and hatchability were greater in the KP150 and KP200 groups than in the KP100 and control groups (p<0.05). Conclusion: The optimal amount of KP extract influencing initial sperm quality was determined to be 200 mg/kg. However, 150 mg/kg was the optimal low dosage of KP extract administration that maintained sperm quality and fertility following semen cryopreservation.