Five-month-old Angus x Hereford reciprocal crossbred nursing steer calves on fescue pasture were used to determine the effects of 1) limiting supplemental feed intake and 2) soyhulls and corn as sources of supplemental (creep) feed in an 84-d study. The treatments were 1) control (no creep feed), 2) limited intake of corn (1 kg/d), 3) unlimited intake of corn, 4) limited intake of soyhulls (1 kg/d), and 5) unlimited intake of soyhulls. Before weaning, there were no differences in supplemental feed efficiency ([supplemented gain--control gain]/supplement intake) or calf gain between corn or soyhulls. Calf gain before weaning increased linearly (P < .05) as intake of creep feed increased, but supplemental feed efficiency did not differ between limited and unlimited supplements. Feedlot performance by the calves was not affected by any of the previous treatments. Calves that consumed an unlimited level of creep feed had greater (P < .05) quality grades than the control group that did not consume creep feed, but no other carcass traits were influenced by treatment. In a metabolism study, fescue DM intake decreased linearly (P < .001) with increasing levels of creep feed, whereas milk DM intake was not affected by level of creep feed. Digestible DM intake increased linearly (P < .001) with increasing intake of creep feed. No differences (P < .18) were observed in digestible DM intake as a result of creep feed source. Apparent total tract DM digestibility increased (P < .05) with increasing level of creep feed intake but did not differ between sources.(ABSTRACT TRUNCATED AT 250 WORDS)

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Objective: To describe modifications to the lateral orbitotomy for surgical excision of tumors affecting the frontal, parietal, palatine, or temporal bones. Study design: Case report. Animal: A 5-year-old female spayed American pit bull terrier. Methods: The dog presented for excision of a bone tumor affecting the right frontal and parietal bones. A modified lateral orbitotomy was performed with combined partial zygomatic arch and vertical ramus ostectomies to increase working space and allow drilling of the calvarium ventral to the mass. Results: The dog tolerated the procedure well, and there were no complications from either the ostectomies or the craniectomy. Histopathological examination was consistent with complete excision of an osteoma. The dog survived 2 years with no recurrence and was euthanized due to an intestinal mass. Conclusion: The lateral orbitotomy approach can be modified with combined partial zygomatic arch and vertical ramus ostectomies to increase exposure and working space for resection of tumors affecting the frontal, parietal, palatine, or temporal bones.

Cementless total hip implants are relatively new to the veterinary market and therefore complication rates and prognostic indicators associated with the procedure have not been thoroughly documented. The objective of this study was to determine the prevalence of complications and identify prognostic indicators of success or failure for the Zurich cementless total hip replacement (THR). Medical records of 163 dogs that underwent Zurich cementless-THR were reviewed; continuous and categorical variables, clinical outcomes and complications were recorded. Complications were separated into intra-operative (IOC), short-term (STC), and long-term (LTC). Bivariate and multivariate statistical analysis was used to compare complications. The clinical significance of this study was to provide surgeons with prognostic indicators of success or failure when evaluating prospective Zurich cementless-THR patients, and to report the complication rate of Zurich cementless-THR. The complication rates of Zurich cementless-THR were then compared to previously-reported complication rates of cemented-THR and other cementless-THR systems. Short-term complications, LTC, and IOC rates of Zurich cementless-THR were found to be 6.75%, 10.4%, and 11.0% respectively. The most common complications were intra-operative femoral fracture, luxation of the implant, and septic loosening of the implant. Increased body weight and prior cemented-THR or femoral head and neck ostectomy of the contra-lateral hip were identified as negative prognostic indicators. The overall complication rate identified was greater than those previously reported for other cementless- and cemented-THR systems.

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