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Anand Agricultural University, Anand

Anand Agricultural University (AAU) was established in 2004 at Anand with the support of the Government of Gujarat, Act No.(Guj 5 of 2004) dated April 29, 2004. Caved out of the erstwhile Gujarat Agricultural University (GAU), the dream institution of Sardar Vallabhbhai Patel and Dr. K. M. Munshi, the AAU was set up to provide support to the farming community in three facets namely education, research and extension activities in Agriculture, Horticulture Engineering, product Processing and Home Science. At present there seven Colleges, seventeen Research Centers and six Extension Education Institute working in nine districts of Gujarat namely Ahmedabad, Anand, Dahod, Kheda, Panchmahal, Vadodara, Mahisagar, Botad and Chhotaudepur AAU's activities have expanded to span newer commodity sectors such as soil health card, bio-diesel, medicinal plants apart from the mandatory ones like rice, maize, tobacco, vegetable crops, fruit crops, forage crops, animal breeding, nutrition and dairy products etc. the core of AAU's operating philosophy however, continues to create the partnership between the rural people and committed academic as the basic for sustainable rural development. In pursuing its various programmes AAU's overall mission is to promote sustainable growth and economic independence in rural society. AAU aims to do this through education, research and extension education. Thus, AAU works towards the empowerment of the farmers.

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Subject: Veterinary Gynaecology and Obstetrics × Author: SUTHAR, VISHAL S. × End date: 2012 × Start date: 2010 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    EFFECT OF PROGESTERONE AND HEAT STRESS ON REPRODUCTIVE PERFORMANCE OF DAIRY COWS AND VALIDATION OF CONTINUOUS BODY TEMPERATURE MEASUREMENT IN IDENTIFYING ESTRUS
    (AAU, Anand, 2012) SUTHAR, VISHAL S.; Dhami, A. J.
    The present study with four experiments and manifold objectives were conducted on German (HF) dairy cows at or affiliated farm facilities of Clinic for Animal Reproduction, Freie Universitaet Berlin, Germany, during January 2010 to June 2012. The overall objectives of this study were to evaluate: 1) performance of temperature data logger in in vitro and in vivo conditions, 2) validity of BT to identify induced estrus, 3) effect of exogenous and endogenous P4 on BT of dairy cows and 4) and to study effect of heat stress on BT and postpartum performance of dairy cows. In first study to evaluate performance of temperature data logger (Minilog 8, Vemco Ltd., Halifax, Canada), three sub-experiments were conducted. The study began with an in vitro validation of 24 temperature loggers comparing them to a calibrated liquid-in-glass thermometer as a reference method (sub-experiment 1). The association and agreement between the 24 temperature loggers with the reference method was r = 0.996 (P < 0.001) and a negligible coefficient of variance (0.005) between the loggers. In vivo temperature loggers were tested in 11 healthy postpartum cows (sub-experiment 2) and 12 early postpartum cows with greater BT (sub-experiment 3). Temperature loggers were set to record VT and RT at 1 min intervals. To prevent rectal and vaginal straining and potential expulsion of temperature logger an epidural injection of 2.5 ml of 2% Procain was administered. Association between RT and VT was r = 0.92 (P < 0.001) in sub-experiment 2 and r = 0.94 (P < 0.001) in sub-experiment 3 with a negligible difference of -0.1 and 0.01°C, respectively. Bland-Altman plots demonstrated an agreement between RT and VT for healthy and early postpartum cows with greater BT in sub-experiment 2 and 3, respectively. Therefore, continuous VT monitoring with temperature loggers can be used as a measure for BT in dairy cows.