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Taurine in semen extender modulates post–thaw semen quality,sperm kinematics and oxidative stress status in mithun(Bos frontalis)spermatozoa

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Asian pacific Journal of Reproduction 2022年第1期11卷 35-43页

作者： Perumal Ponraj Kobu Khate Kezhavituo Vupru ICAR-National Research Centre on mithun MedziphemaNagaland–797106India ICAR-Central Island Agricultural Research Institute Port Blair744105Andaman and Nicobar IslandsIndia

Objective:To assess the effect of taurine on post-thaw semen quality parameters,sperm kinematics,antioxidant and oxidative stress profiles and sperm cholesterol efflux in mithun(Bos frontalis).Methods:A total of 50 ejaculates(n=25 samples)were selected based on biophysical parameters.Each sample was split into four equal aliquots after dilution with the Tris-citrate-glycerol extender.GroupⅠ,Ⅱ,ⅢandⅣcontained 0 mM(the control),25 mM,50 mM and 100 mM of taurine,respectively.Frozen-thawed samples were analysed for motility parameters(progressive forward and in bovine cervical mucus penetration test),kinetic and velocity parameters by computer-assisted sperm analyzer,viability,sperm and nuclear abnormalities,acrosome integrity,plasma membrane and nuclear integrities,sperm enzymatic leakage and biochemical(sperm cholesterol and oxidative stress)profiles.Results:The extender containing 50 mM taurine led to a significant enhancement in viability,acrosomal integrity,plasma membrane integrity,motility(progressive and in cervical mucus),and sperm cholesterol content and notably reduced sperm morphological and nuclear abnormalities,and leakage of intracellular enzymes compared to other taurine treated and untreated control groups(Pmithun semen.Conclusions:Taurine(50 mM)supplementation in semen extender can be effectively utilized to reduce oxidative stress and improve post-thaw semen quality in mithun.

关键词： Antioxidants Cryopreservation Kinematic profiles mithun Oxidative stress Spermatozoa Taurine Semen quality Post-thaw

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Nutrient value of wild fodder species and the implications for improving the diet of mithun (Bos frontalis) in Dulongjiang area, Yunnan Province, China

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Plant Diversity 2020年第6期42卷 455-463页

作者： Yanfei Geng Sailesh Ranjitkar Qiaoshun Yan Zhijun He Baqi Su Shengtao Gao Junli Niu Dengpan Bu Jianchu Xu College of Tea Science Guizhou UniversityGuiyang 550025China Key Laboratory of Economic Plants and Biotechnology Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China CAAS-ICRAF Joint Lab on Agroforestry and Sustainable Animal Husbandry World AgroforestryEast and Central AsiaBeijing 100193China NGene Solutions of Natural InnovationKathmanduGPO 44614Nepal Mid-Western University Faculty of Humanities and Social ScienceNaya BatoLalitpur 44600Nepal Agriculture Bureau of Gongshan Derung and Nu Autonomous County Nujiang 673500China State Key Laboratory of Animal Nutrition Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing 100193China College of Animal Science and Technology Shihezi UniversityShihezi 832003China Hunan Co-Innovation Center of Animal Production Safety CICAPSChangsha 410128China World Agroforestry East and Central AsiaKunming 650201China

Wild fodder plants are valuable because they provide an important livestock feed resource globally,especially for smallholder farmers,and have important roles in natural resource management.In-depth knowledge of wild forage plants can motivate local people for feed resource and habitat conservation of threatened herbivores such as mithun(Bos frontalis).mithun occur in small patches in the mountains of Dulongjiang,nearby villagers domesticated this animal but left animal to freely graze in the mountains.Many fodder plants occur in these mountains,however,little is known about their nutritional value.We conducted an ethnobotanical survey to document important wild fodder plants consumed by mithun in the Dulongjiang Township.The nutritional content of 21 highly mentioned wild fodder plants in an ethnobotanical survey was examined.Laboratory analysis showed that Fagopyrum dibotrys were the fodder species with the highest crude protein(CP)content(26.89%),followed by Polygonum molle(21.88%)and Hydrangea longipes(21.12%).Synthesis of relative feed value index and grey relational grade,P.molle,H.longipes and Tetrastigma obtectum were ranked the top three nutritional fodders.There was a significant difference between 21 species on their in vitro digestibility and the most highly digestible fodder species was Elatostema hookerianum.Linear model analysis on relationship between frequency of citation of 21 wild forage plants by local farmers and their nutrient composition showed that the frequency was significantly positively correlated with the nutritional value of the feed(R2?0.28,Pmithun production in integrated crop-livestock systems.Fodder species or mixtures of species with useful nutritional characters could be cultivated to improve livestock productivity,habitat conservation including that of mithun and wild forage resource management.

关键词： Wild fodder species Nutritional value mithun Nature conservation

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Effect of foot and mouth disease vaccination on seminal antioxidant profiles of mithun (Bos frontalis)

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Asian pacific Journal of Reproduction 2018年第4期7卷 178-184页

作者： P.Perumal Animal Reproduction Laboratory ICAR-National Research Centre on MithunMedziphemaNagaland-797 106India

Objective: To assess the deleterious effects of foot and mouth disease vaccination on antioxidant profiles as well as oxidative stress in the semen of breeding mithun bulls. Methods: A total of 160 semen samples were collected from 8 adult healthy mithun bulls with good body condition score (5-6), which were maintained at semen collection centre, ICAR-National Research Centre on mithun, Medziphema, Nagaland, India, twice a week, 4 weeks before vaccination (pre-vaccination stage) and 12 weeks after vaccination (post-vaccination stage) to understand and know the influence of vaccine stress on seminal antioxidant as well as oxidative stress profiles in mithun. Vaccine was injected at the end of week 4 and semen samples were collected & analysed up to week 16 of the investigation period. Results: Data analysis showed that foot and mouth disease vaccination has significantly (Pmithun species.

关键词： Antioxidants profiles Foot and mouth disease vaccination mithun Oxidative profile

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Seasonal effect on physiological, reproductive and fertility profiles in breeding mithun bulls

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Asian pacific Journal of Reproduction 2017年第6期6卷 268-278页

作者： Perumal P Savino N Sangma CTR Khan MH Ezung E Chang S Sangtam TZT ICAR-National Research Centre on mithun MedziphemaNagaland-797106India NU-School of Agricultural Science and Rural Development MedziphemaNagaland-797106India

Objective:To analyse the seasonal effect on physiological parameters, reproductive profiles andin vitro fertility in breeding mithun bulls.Methods: A total of ten adult mithun bulls age of 5 to 6 years old with good body condition (score 5-6) were selected from ICAR-NRC on mithun, Jharnapani, Nagaland, India. The seasons were categorised into winter, spring, summer and autumn seasons based on the meteorological data and sunshine hours. The physiological parameters, reproductive profiles andin vitro fertility parameters were assessed during different seasons in mithun under the semi-intensive system of management.Results:The statistical analysis revealed that these experimental parameters were differed significantly (Pmithun breeding programme, although, the breeding in mithun occurred throughout the year with variation.Conclusions:It is concluded that collection & preservation of mithun semen and artificial insemination in mithun species during the season of spring and winter has significant beneficial effect in terms of semen production, freezability and fertility for artificial breeding programme in mithun under the semi-intensive system.

关键词： mithun Seasonal effect Physiological parameters Reproductive and fertility parameters

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