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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: Livestock Production and Management × Author: Dhangar, Mahesh R. × End date: 1999 × Start date: 1990 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    INVESTIGATIONS ON DRAFT PERFORMANCE AND CERTAIN RELATED ASPECTS IN KANKREJ AND CROSSBRED BULLOCKS
    (AAU, Anand, 1998) Dhangar, Mahesh R.; Patel, Ashok M.
    An investigation was undertaken at the Department of Livestock Production, Veterinary College, Anand to study draft performance of Kankrej and Jersey x Kankrej bullocks. A total of 6 bullocks of each breed were subjected to carting loads equivalent to (pay load) 150% (340 kg), 200% (620 kg), 250% (900 kg) and 300% (1180 kg) of body weight, and to agricultural operations. The work trials were conducted for 3 hours in both, morning and afternoon sessions of stressful (standard weeks 19 to 23; THI 88.15 ± 0.70) and comfort (standard weeks 49 to 52 and 1 to 3; THI 74.04 ± 0.41) seasons. The carting trials were carried out using single animal pneumatic tyred bullock cart on the kutcha farm roads. The single plough operation of 3 hours duration at vapsa condition of sandy loam soil was followed by double planking for 1 1/2 hrs in each session. The strain gauge type load cell (fit to telescopic beam of cart and plough) along with digital indicator was used to record pull exerted by the bullocks while different work. The body weight and body length of crossbred bullocks were significantly greater by 37.86 kg and 1.65 cm while the height at withers being lesser by 1.96 cm than those of Kankrej (539.70 kg; BL 165.14; H Th!s 142.67 cm), This resulted into greater angle of pull at A carting and agricultural operations in Kankrej as compared to crossbreds. The bullocks of both the breeds aged 8.33 yrs and were healthy (Hb, 11.40 ± 0.08 gm%) . The pulling force, speed of travel and hp production at carting were higher (P<0.01) respectively by 2.47, 8.09 and 10.71 % in crossbreds than in Kankrej (40.50 ± 0.62 kg, 3.83 ± 0.03 km/hr, 0.56 ±0.01 hp). The hp output by a pair of bullocks averaged 1.07 and 0.52 at ploughing and planking respectively.The draft generation and work output while carting different load units indicated a curvilinear relationship between load intensity and draft production. Breed x load and season x load did affect draft performance favouring crossbreds at heavy loads, and higher work production during winter than in summer, whereas breed x season, breed x time (session) of the day and breed x period interactions did not exert significant effect on draft generation and hp production The stride length of Kankrej bullocks was 2.60% shorter (P>0.05) than that of crossbred bullocks (1.54± 0.01 m). It was affected only by period / duration of work. Overall area ploughed in 3 hrs session was 0.371 ± 0.04 hac. The efficiency (area covered per hour) of agricultural operations was significantly affected by breed, type of work, season, time of the day and season x agril. operation interaction. Kankrej bullocks ploughed slightly (P>0.05) deeper (0.04 cm) and yielded wider furrow than crossbreds. The respiration rate increased by 66.13, 32.70 and 0.81% and rectal temperature by 0.61, 0.42 and 0.26% during 1st, 2nd and 3rd hour of work. The interactions indicated a greater rise in the physiological responses of crossbreds than of Kankrej, during summer, afternoon session, as well as at heavier work. The heart rate of working bullocks was 7.33% more (P< 0.05) during summer more. than in winter (73.23/min), similarly 4.65% more during afternoon over morning (74.19/min.). The 30 min of rest following 3 hours of work led the physiological responses to near to prework level. The rate of normalization was greater in crossbreds. Of the crossbred bullocks subjected to different works during summer,33.3% showed profuse salivation or full mouth frothing. Both time taken (post onset of work) for initiation as well as intensification were by affected by intensity of work, being earlier for heavy work load. Distress signs reflecting a slight excitement were observed at 900 and 1180 kg pay loads. Similar distress score of 17-18 (on 40 point scale) after 3 hours of carting of 1180 kg pay load during stressful period (THI, 88.2) was worked out for both the breeds. A 3-hours of work caused significant decline in blood glucose and elevation in blood lactic acid. asma creatinine and haemoglobin levels of the llocks. The alterations were more marked during mmer than in winter and at carting 1180 kg load. Body weight and body length showed positive lationship (r = 0.13 to 0.24) with draft performance aits of the bullocks. e Ambient temperature adversely affected the speed d stride length (r,-0.24 to -0.43; P<0.05).