Pankaj Jha

Pankaj Jha
Nepal Agricultural Research Council | NARC · National Buffalo Research Program

D.V.M; M.S (Theriogenology); Ph.D
Buffalo reproduction research focusing on estrus detection and estrus synchronization for increasing pregnancy rates.

About

33
Publications
16,288
Reads
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100
Citations
Citations since 2017
29 Research Items
98 Citations
2017201820192020202120222023051015202530
2017201820192020202120222023051015202530
2017201820192020202120222023051015202530
2017201820192020202120222023051015202530

Publications

Publications (33)
Article
Two different gonadotropins on superovulatory response and embryo yield in indigenous ewes were stud�ied. Donor ewes (n=33) were synchronized for oestrus using vaginal sponges containing 45 mg fluroge�stone acetate (FGA) for 12 days. For the superovulation, different types of gonadotropins were used in ewes randomly allocated into group I [n=16; o...
Article
Full-text available
Pre-freeze semen quality is a prediction for an efficient and successful freezing in cryopreservation. This study was designed to assess the semen quality of two ram breeds at pre-freeze stage of cryopreservation. A total of 30 ejaculates (5 ejaculates per ram) were collected using artificial vagina twice a week for a period of two months from two...
Article
Full-text available
The study aimed to determine the more performance sheep between Jamuna basin indigenous and Muzaffarnagri cross breeds with respect to their morphometric, reproductive and productive traits for farmers' choice of Bangladesh. Farm visit, routine monitoring, spot observation and semi-structure questionnaire were used for field data collection. Morpho...
Article
Full-text available
The effects with two different types of diluent (commercial Triladyl ® and home-made tris based) and number of frozen-thawed ram sperm (100 × 10 6 and 50 × 10 6 sperm dose) on pregnancy and lambing rate following laparoscopic artificial insemination (LAP-AI) in indigenous ewes in Bangladesh were studied.
Article
Full-text available
The study was aimed to identify the effective cervical ripening treatment to increase the pregnancy rates following transcervical artificial insemination (TC-AI) in indigenous ewes of Bangladesh. Three treatments schedules were compared, G1 (n = 6, control), G2 *n = 6, prostaglandin E1 (PGE1) as Misoprostol-Cytomis®+ and G3 (n = 6, estrogen as Oest...
Article
The effect of freezing methods and diluents types on post-thaw sperm quality of Bangladeshi ram semen was studied. Two freezing methods and three diluents was tested as pooling effects (freezing methods or diluents) on post-thaw sperm parameters; sperm motility (SM), viability (SV), plasma membrane integrity (SPMI) and acrosome integrity (SAI), res...
Article
Full-text available
Diluents Freezing methods Cryopreservation Ram semen The effect of freezing methods and diluents types on post-thaw sperm quality of Bangladeshi ram semen was studied. Two freezing methods and three diluents was tested as pooling effects (freezing methods or diluents) on post-thaw sperm parameters; sperm motility (SM), viability (SV), plasma membra...
Article
Full-text available
The effects of the number of frozen-thawed ram sperm per single and double intra-cervical artificial insemination (AI) on fertility in ewes were studied. A total of 89 non-pregnant ewes were synchronized for oestrus with two doses of 100 μg PGF2α (Cloprostenol) 9 days apart. The ewes were randomly assigned to one of four groups; D200 (n = 23; doubl...
Article
Full-text available
The study was conducted to evaluate the seminal attributes and cryo-banking of Achhami (Bos indicus) bull semen. Of two Achhami bulls, 8 ejaculates from each bull were evaluated for seminal attributes. For semen freezing and cryo-banking, 4 ejaculates (having ≥2 mL semen volume, ≥75% of sperm motility and ≥1,000 × 106 cells/mL of sperm concentratio...
Poster
Full-text available
The study was performed on 48 ejaculates obtained from two boars (one Hampshire and other Berkshire) with objective to evaluate two boar semen production performances in the year 2075 BS at Pig Research Unit of Regional Agriculture Research Station (RARS), Tarahara, Sunsari. The ejaculates were collected once every week for a year with the aid of d...
Article
A study was conducted to establish a sustainable and effective manual freezing technique for cryopreservation of Bangladeshi ram semen. Three diluents and freezing techniques were tested, both as treatment combinations (diluent × freezing technique) and fixed effects (diluent or freezing technique) on post-thaw sperm motility (SM), viability (SV),...
Article
Full-text available
An attempt was taken to study the growth performance of lemongrass oil (Cymbopogon citraturs) as a growth promoter on the broiler production. A total of 180day-old broiler chicks were procured from private hatchery (Shivam Hatchery Birgung, Parsa, Nepal) and were allocated following Completely Randomized Design (CRD) into four treatment groups (eac...
Article
Full-text available
Bypass protein is known to stimulate the voluntary feed intake, increase quality milk production and thereby improve economic status from dairy cows farming. This study was conducted to compare the responses of additional bypass protein as feed supplement on milk production performance in Jersey dairy cows, and its cost benefits per L of milk produ...
Article
Full-text available
This study was carried out to investigate the occurrence of various surgical affections often encountered in carnivorous zoo animals of National Zoological Garden, Dhaka, Bangladesh. The study was based on the surgical cases reported in the day record book maintained by the zoo authority during the period of January - December 2012 to January - Dec...
Article
Full-text available
p>Ram semen was assessed for quality and presence of bacteria. Four ejaculates were collected from each of four rams twice a week using artificial vagina. The volume varied from 0.4 - 1.3 mL, colour from 2 - 4 (creamy to creamy-grey), mass activity from 3 - 5, sperm motility from 75 - 85%, viability from 80 - 95%, and concentration from, 2500 - 500...
Article
p>The effects of PMSG on superovulation, quality of embryos, and pregnancy rate were studied following transfer of vitrified embryos into indigenous ewes. Three donor and nine recipient ewes were synchronized using two intramuscular doses of Cloprostenol (PGF2α) equivalent to 125 μg Prostaglandin F2α (Ovoprost® Bayer, New Zealand) at an interval of...
Article
Full-text available
The objective of the study was to understand the seminal attributes, effectiveness of cooling process and post thawed semen quality of a Nepalese indigenous Khari buck. Two Khari bucks were used for the study. Thirty-two ejaculates (16 ejaculates from each buck) were evaluated for seminal attributes of fresh semen. The mean semen volume, semen colo...
Article
Full-text available
p>This study was undertaken to assess the reproductive performances of sheep at field level of Rajshahi and Mymensingh district of Bangladesh during January to December, 2016. A total of 52 farms (26 each in Rajshahi and Mymensingh) were selected for determining the reproductive parameters of ewes. Ewe lambs in Mymensingh reached puberty at signifi...
Article
Full-text available
p>This study was undertaken to study the AI conception rate using frozen semen at field level. Five farms in Mymensingh, Bangladesh were selected for AI Trial in field ewes. Four rams were selected for semen collection, evaluation, and frozen semen production and further to study conception rate followed by intra-cervical AI in both natural and syn...
Article
p>Study was conducted to observe the influence of different factors on pregnancy rate in 24 indigenous ewes following artificial insemination (AI) with frozen semen. The ewes were synchronized by intra-muscular injection of Prostaglandin F2α (Ovuprost<sup>®</sup> Bayer, New Zealand). The onset and intensity of oestrus were determined by oestrus beh...
Article
Full-text available
The best Bangladeshi indigenous breeding rams (Wera breed) were selected by evaluating semen characteristics for using in future semen production and artificial insemination (AI) program. Of total rams (n=16), 12.5% (2/16) failed to show better performance and 87.5% (14/16) trained for semen collection. A total of 172 ejaculates were collected and...
Conference Paper
Full-text available
A field study was conducted during October, 2016 at Kosaha-2, Shreepur-7 and Laukahi-5 of Sunsari district to understand the productive performance, morphometric measurements and qualitative traits of 20 adult buffaloes in Eastern Terai of Nepal. Productive performance of buffaloes was recorded based on direct observation in the field. Qualitative...
Article
Full-text available
Indigenous animals are valuable genetic property of a country. The Nepali indigenous Lulu cattle breed is in endanger state. Cryopreservation is a simple and potent technology to preserve the gam-etes and could be used for genetic dissemination. Therefore, the study was conducted to evaluate the seminal attributes of fresh semen with a final goal o...
Article
Full-text available
The effects of PMSG on superovulation, quality of embryos, and pregnancy rate were studied following transfer of vitrified embryos into indigenous ewes. Three donor and nine recipient ewes were synchronized using two intramuscular doses of Cloprostenol (PGF 2 α) equivalent to 125 µg Prostaglandin F 2 α (Ovoprost ® Bayer, New Zealand) at an interval...
Article
Full-text available
p>The experiment was carried out to detect the blood serum testosterone concentration after orchiectomy in Black Bengal bucks ( Capra hircus ). Twelve apparently healthy bucks of 8 - 10 months old were randomly divided into two groups. Group A were castrated surgically through open uncover method and group B remained intact. Local analgesia (2% lid...
Article
Full-text available
Study was conducted to observe the influence of different factors on pregnancy rate in 24 indigenous ewes following artificial insemination (AI) with frozen semen. The ewes were synchronized by intra-muscular injection of Prostaglandin F2α (Ovuprost ® Bayer, New Zealand). The onset and intensity of oestrus were determined by oestrus behaviour of ew...
Data
This study was conducted among 120 different breed cows at selected areas of Sirajgonj district from March to July 2010 to compare the reproductive performance of crossbred and Desi cows at farmer's level. The results showed that the average daily milk yield of Desi, Shahiwal × Desi, Friesian × Desi and Jersey × Desi cows was 2.3 ± 0.2, 4.9 ± 0.9,...
Article
Full-text available
Alpha-tocopherol as an antioxidant acts in preservation of chilled semen by preserving cell membrane damage from lipid peroxidation. Optimum concentrations of α-tocopherol in egg yolk-citrate (EYC) extender need to be studied in crossbred bull’s semen. Different concentrations of α-tocopherol viz. 0, 1, 2, 4 and 6mg per ml of extender were used. Se...

Questions

Questions (9)
Question
here in nepal, currently it is a matter of confusion about full blood, 100%, pure breed, upgraded breed. please make us clear in easy way.
Question
How to produce buffalo broiler for meat purpose?
Question
Actually I have some images of sperm that I have preserved during my work. I wish it will be helpful for others if it may be published or reported in any technical sites. I don't have an idea. If anyone knows about this please help me.
Question
I have already published my research work in a journal. Now can I present the same work in conference?
Question
Recently PL-6800P Veterinary Sperm Analyzer (Brand PALMARY, Chinese) have been bought in our laboratory. But we are facing problem to run smoothly. please help us if someone already used this analyzer. thanking u
Question
This value i got from excel sheet from two groups of progesterone values of sheep at standing oestrous.
Question
Can we use human progesterone kit for sheep progesterone assay?
Question
I need some hormone for our research work related to animal reproduction. Mainly I am looking for Folligon (pregnant mere serum gonadotropin). Here in Bangladesh, now a days the supplying is stopped. My friend is in Kolkotta, who will buy for me. But he from different disciple.
thanks
Question
I have worked with 4 semen freezing techniques and 3 diluents on 4 responses. like freezing tech. 1 diluent 1, freezing tech.2 diluent 2........so I have 12 groups. There is wide variation among response variables (dependent) in my data set. Please suggest me what are the statistical tool i use to conclude which freezing tech. and which diluent or which group is best?

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Projects

Projects (3)
Project
To evaluate different productive and reproductive performance of Giriraj, NH, Turkey, Quails and other poultry breeds
Project
Increase rate of post thaw sperm quality and validate followed by pregnancy rate. Establishment of MOET program with oFSH and pFSH.