Effect Of Various Growth Promoting Antibiotics On The Immune And Digestive Systems Of Broiler Chickens
Material type: Book ; Format:
Publisher: 2002 Dissertation note: This project was designed to study the effects of growth promoting antibiotics on immune and digestive systems of broiler chickens. This study indicated that un-medicated un-vaccinated chickens had the higher body weights than the vaccinated un-medicated or medicated chickens.
Flavomycin, Lincomycin and Zinc bacitracin did not adversely affect the mean weights of spleen, thymus and livers of experimental chickens. However, the use of lincomycin, adversely affected the weight of bursa of' Fabricius. Furthermore, the use of Flavoinycin, Lincomycin and Zinc bacitracin did not have any adverse effects on the development of antibody titers against NDV and AIV. The total viable microflora counts of different treatment groups were not different from each other.
Evaluation of the economics of flocks at the end of the experiment indicated that un-medicated, un-vaccinated groups had higher profit returns and the Lincomycin medicated, vaccinated groups demonstrated lowest profit.
Availability: Items available for loan: UVAS Library [ Call number: 0738,T] (1).
Comparative Efficacy Of Intravesical Mucosal And Extravesical Apposition Techniques For Ureteroneocystostomy in Dogs
Material type: Book ; Format:
; Literary form:
Publisher: 2011 Dissertation note: This project was designed to evaluate the comparative efficacy of two different techniques of Ureteroneocystostomy for ureteral reimplantation in dogs. Sixteen stray dogs were selected and were divided into two groups i.e. group A & B, comprising eight animals each. The efficacy of the procedures was evaluated on the basis of physical examination, serum evaluation for creatinine & urea, contrast radiography and post mortem findings.
The surgery was conducted through ventral midline celiotomy from umbilicus to a variable distance caudally under general anesthesia in both the groups and urinary bladder was exteriorized in both the groups. In group A, longitudinal incision was made near the bladder dome, a mosquito hemostat was passed from the surface of the bladder through the bladder wall at an oblique angle then the ureter was brought to the level of the bladder mucosa incision. A 6-0 Polyglactin 910 (Vicyrl,Jhonsons & Jhonsons Pharma) suture with double needles was then placed at each apex of the spatulated ureter and the full-thickness of ureter anastomosed to the bladder mucosa in one layer with a continuous, nonlocking stitch. In group B, two small incisions were made at the outer part of the bladder wall until the mucosa was seen through the cuts. Then a submucosal tunnel was dissected between them and the graft's ureter was introduced. Once the ureteral end has been spatulated, a reabsorbable 4-0 suture thread with independent needles at each end was passed (each needle goes from the outer to the inner side of the ureteral wall. Afterward, both needles were advanced into the bladder by the creation of a mucosal incision at the distal hole; these two needles then transfixed the bladder wall
from inside about 2 cm distally. During knotting of the suture (outside the bladder) the distal ureter was pushed to the bladder wall that it anchored against the mucosa.
The results of this study clearly indicated that both techniques are equally effective for the reimplantation of the ureter to bladder but an extravesical ureteroneocystostomy (Modified Lich Gregoir) has an edge over in intravesical mucosal apposition technique (Modified Lead better-Politano) in terms of effectiveness , safety and minimum postoperative complications.
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Comparative Efficacy Of Suturing Techniques And Suture Materials For End-To-End Anastomosis Of Small Intestine in Dogs
Material type: Book ; Format:
Publisher: 2010 Dissertation note: The small intestine is a tube-like structure, which extends between the stomach and largeintestine. It starts at the pylorus and terminates at the cecocolic junction. Small intestine plays an important role in the absorption of amino acids, carbohydrates, fats and electrolytes like sodium, potassium, chloride and bicarbonate ions. Any disease condition of jejunum like neoplasia or devitalization due to foreign body necessitates the resection of it. This project was designed to evaluate the comparative efficacy of different suturing techniques and suture material applied during end-to-end anastomosis of small intestine. The study was designed on eighteen stray dogs. The dogs were divided into 3 groups i.e group A, B, and C comprising 6 animals each. Each group was further subdivided into the subgroups as, Al, A2, Bi, B2 and Cl, C2. The dogs of group A was numbered from 1-6, group B from 7-12, and group C from 13-18 for the identification purpose. The surgery was conducted through ventral midline celiotomy from umbilicus to a variable distance caudally under general anesthesia. In group A, Simple interrupted, group B modified Gambee and in group C interrupted Lembert suturing technique for end-to-end anastomosis of small intestine was used. In subgroup Al, B, C! chromic catgut and in subgroup A2, B2 an C3 polyglyconate suture materials was used.
In group Cl, operated dog No.2 died on day 16 post operatively. The versatility and comparison of the techniques were evaluated on the basis of health status including vomiting, diarrhea, and weight gain or weight loss, wound healing, radiographic assessment, decrease in lumen diameter, alignment of tissue plane and quality of wound healing of the anastomotic site in all three group A, B and C. The leakage was checked at 2, 4, 6 and 12 week post surgery using contrast radiographs. During the study period the dogs were housed in the kennels available at Surgery Section, Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore.
The present project is clearly indicated that modified Gambee suturing technique was found to be more suitable and compatible anastomotic technique with excellent clinical superiority. It resulted in the batter wound healing, minimal lekage, minimal reduction in lumen diameter at the anastomotic site, excellent in its alignment of tissue plane, satisfactory clinical layer to layer healing , is simple to duplicate under field conditions and minimal abdominal complication.
Availability: Items available for loan: UVAS Library [ Call number: 1218,T] (1).