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Role of preputial washing in reducing microbial load and improving bovine semen quality

Asian pacific Journal of Reproduction 2018年第3期7卷 97-102页

作者： adil rasool paray Mukesh Bhakat Shabir Ahmad Lone Tushar Kumar Mohanty Ranjana Sinha Javid Ur Rahman Zahid Bashir Khanday Ziaullah Danish Artificial Breeding Research Centre ICAR-National Dairy Research InstituteKarnal132001HaryanaIndia

Quality semen production remains the main focus and objective of semen processing laboratories throughout the world. Bacterial and other microbial contaminants affect the semen quality and hence the fertility, and also lead to reproductive disorders as well as lower conception rates and increased embryonic mortality, abortion and other complications in females. Microbial contamination affects the semen adversely, by exerting direct spermicidal effect, formation of reactive oxygen species, toxin production, adherence with spermatozoa, deriving nutrients and oxygen from the medium and thus competing with spermatozoa for the factors of growth and normal functioning. Despite hygienic measures, several ubiquitous and opportunistic microbes find their ways into semen during collection, processing, and storage of semen, and survive even during freezing. Stringent sanitary precautions are therefore required at every step of collecting semen and its processing. Preputial cavity is considered as main source of semen contaminating microorganisms. Flushing the preputial cavity with normal saline or any suitable liquid combination with antimicrobial activity, prior to semen collection reduces the microbial load and thereby improves the semen quality.

关键词： Semen quality Preputial washing Microbial contamination

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Sperm dosage and site of insemination in relation to fertility in bovines

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Asian pacific Journal of Reproduction 2018年第1期7卷 1-5页

作者： Tushar Kumar Mohanty Shabir Ahmad Lone Kumaresan A Bhakat M Kumar R Rubina K Baithalu Ranjana Sinha adil rasool paray Hanuman P Yadav Sangram K Sahu Ashok K Mohanty Artificial Breeding Research Centre ICAR-National Dairy Research InstituteKarnal132001HaryanaIndia Livestock Research Center ICAR-National Dairy Research InstituteKarnal132001HaryanaIndia Animal Biotechnology Center ICAR-National Dairy Research InstituteKarnal132001HaryanaIndia

Low sperm numbers in artificial insemination (AI)-doses are being used widely to make the best use of high genetic value bulls as well as sex-sorted semen. Sperm concentration needed for AI to obtain reasonable fertility, taking genetic value of bull and numerous others components into consideration is one of the essential constituents for successful AI breeding program. However, low sperm concentrations in AI-doses lead to reducing post-thaw viability. The reduction in viability of low sperm doses may be affected by fresh semen volume, sperm number and seminal plasma level at final dilution. Reduction in quality and fertility of low sperm doses is one of the limitations for their use in successful AI programme. Sperm number per AI required to achieve optimum fertility is one of the main crucial things to AI industry, and numerous efforts have been made in this regard. Due to great variability among bulls, sperm number per AI could be a limiting factor in achieving acceptable fertility values. Fertility of low sperm doses may vary among bulls, and non-return rates (NRRs) with low sperm doses may be determined by fertility level of bull. On the basis of individual bulls, sperm numbers in AI doses needed to be adjusted to reduce the variations in NRRs among bulls. Utilizing high fertile bulls for low sperm doses with acceptable non-return rates (NRRs) may be a way to cover a large number of bovines under AI in countries like India. Deposition site within the uterine horn may alter non return rates following inseminations with low sperm doses. Following deep-uterine inseminations, acceptable pregnancies may be achieved with low sperm doses and even if ovulation side is unknown.

关键词： Sperm number Deposition site Fertility

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Preparation Physicochemical Characterization and Catalytic Applications of Polystyrene Ethylenediamine Tetra acetic Acid Cu(II) Metal Complex

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Modern Research in Catalysis 2014年第4期3卷 107-116页

作者： Imtiyaz rasool Parrey Syed Anayutullah Athar adil Hashmi Department of Chemistry Jamia Millia Islamia New Delhi India

Chloromethylated styrene-divinylbenzene copolymer beads with 8% crosslink were chemically modified by reaction with Ethylenediaminetetraaceticacid leading to the incorporation of nitrogen as ligating site on the surface of the polymer. The polymeric ligand on treatment with a solution of Copper chloride gave the corresponding metal complex. The polymer supported Cu(II) complex was characterized by elemental analyses, IR,GC-MS, scanning electron micrographs (SEM). The oxidation of various alcohols such as benzyl alcohol, 2-butanol, and 2-propanol was investigated using the supported metal complexes in presence of molecular oxygen as the oxidant. The swelling studies were done by using different solvents. Kinetic data indicate that the catalysts could be recycled without significant degradation of polymer matrix.

关键词： Synthesis Polymer Supported Metal Complexes Oxidation of Alcohols Molecular Oxygen

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Growth, Yield and Quality Performance of Pearl Millet (<i>Pennisetum americanum</i>L.)

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American Journal of Plant Sciences 2014年第15期5卷 2215-2223页

作者： Mahmood Ul Hassan Azraf-ul-Haq Ahmad Shahid Ibni Zamir Ihtishamul Haq Farhan Khalid Tassadduq rasool adil Hussain Department of Agronomy University of Agriculture Faisalabad Pakistan

Livestock industry of Pakistan is expanding day by day. To meet its growing demand high fodder yielding and nutritious varieties of fodder crops are needed. Pearl millet (Pennisetum americanum L.) is an excellent choice for this purpose. In order to explore the possibility of the better yield potential varieties of pearl millet performed in a good manner under agro ecological conditions of Faisalabad during the year 2012. A field experiment was conducted at Agronomic Research Area, University of Agriculture, Faisalabad, Pakistan. Randomized complete block design was used with three replications;the net plot size was 1.8 m × 6 m. The experiment was comprised of nine millet varieties named Cholistani Bajra, Barani Bajra, MB-87, Sargodha Bajra 2011, 18-BY, Super Bajra-1, PARC-MS-2, 86-M-52 and FB-822. All other agronomic practices were kept normal and constant. Data on yield and yield components were recorded by standard procedure. Significant results were recorded among the varieties for forage growth and yield. The variety 86-M-52 produced maximum forage and dry matter yield because of more number of leaves (14), leaf area (3540.1 cm2) followed by Sargodha Bajra-2011. All cultivars have statistically significant differences in respect of quality characteristics. However, non-significant differences were observed among cultivars regarding ash contents. The cultivar Sargodha Bajra-2011 has the highest crude protein (10.347%) and the cultivar FB-822 has the minimum crude protein percentage (6.733%). While PARC-MS-2 has the highest crude fiber percentage (34.667%) but variety MB-87 has the minimum crude fiber (24.333%). Variety 86-M-52 proved better for getting higher forage yield followed by Sargodha Bajra-2011 than all other varieties. Sargodha Bajra-2011 is the best cultivar that performed well in respect of quality parameters under irrigated conditions of Faisalabad.

关键词： Forage Fiber Varieties Quality

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