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Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur

Himachal Pradesh Krishi Vishvavidyalaya (renamed as Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya in June, 2001) was established on 1st November, 1978.The College of Agriculture (established in May, 1966) formed the nucleus of the new farm University. It is ICAR accredited and ISO 9001:2015 certified institution. The Indian Council of Agricultural Research has ranked this University at eleventh place among all farm universities of the country. The University has been given the mandate for making provision for imparting education in agriculture and other allied branches of learning, furthering the advancement of learning and prosecution of research and undertaking extension of such sciences, especially to the rural people of Himachal Pradesh. Over the years, this University has contributed significantly in transforming the farm scenario of Himachal Pradesh. It has developed human resources, varieties and technologies and transferred these to farming community enabling the State to receive the “Krishikarman award” of Govt. of India four times in row for food grain production among small states of the country. Today, the State has earned its name for hill agricultural diversification and the farming community has imposed its faith in the University.

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20211
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Subject: Animal Reproduction and Gynecology × Author: Jamwal, Kirti × Start date: 2014 × Type: Thesis ×
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    ThesisItemOpen Access
    Studies on the estrus synchronization protocols and sonographic evaluation of early embryonic development in Gaddi sheep.
    (palampur, 2021-09-01) Jamwal, Kirti; Sharma, Amit Kumar
    The present study was conducted in Gaddi sheep to compare different estrus synchronization protocols during conventional non-breeding (April to June 2020; NB) and breeding (November-January 2021; B) season at Livestock Farm Complex, CSKHPKV, Palampur at 32.6° N, 76.3° E, altitude of 1290.8 m. Gaddi ewes were assigned to three different groups viz. progesterone-based protocol (ProEP), ovulation synchronization protocol (GPG) and control (Con) including six ewes in each group during both the seasons. Different estrus behavior signs were observed and compared during B and NB season along with vaginal electrical resistance, temperature, pH and vaginal cytology. Significantly higher (p<0.05) frequency of tail wagging (3.0±0.6) was observed at <24 hr in ProEP treated Gaddi ewes than other groups. ProEP treated ewes exhibited earlier onset (28.8±1.8 hr) along with extended estrus duration (40.2±5.5 hr) irrespective of season. Performance of ProEP treated Gaddi ewes was better in terms of higher rates of estrus response (83.3%), conception (90.0%), pregnancy (75.0%), fecundity (83.3%) and prolificacy (1.0±0.0). Vaginal electrical resistance and cytological examinations could also be used for diagnosing standing estrus in Gaddi ewes. Serum progesterone estimation were also carried out in ProEP treated Gaddi ewes at different interval. Significantly higher serum progesterone concentration in ProEP treated pregnant Gaddi ewes was observed on Day 0 (2.72± 1.71 ng/ml) as well as on Day 17 (3.94±0.4 ng/ml) after mating. Sequential transrectal ultrasonography (TRUS) examinations with linear rectal probe (5.5–7.5 MHz) were carried out to study embryonic biometry parameters, accuracy, sensitivity, specificity, positive and negative predictive value. TRUS was efficiently used for studying the embryonic development as well as losses between Days 14-35. Day 28 was regarded as best time to perform TRUS with maximum precision, higher accuracy, sensitivity, specificity and increased proportion of ewes having positive and negative predictive values. Predictive equations for calculation of gestation age during embryonic phase in Gaddi ewes were also established.