介绍了Kirk—Othmer Encyclopedia of Chemical Technology（化工技术百科全书）（第五版）电子图书网络版数据库，并对该数据库使用方法和检索途径作出了说明，且结合实例简单地介绍了该数据库的检索方法。

Kirk-Othmer Encyclopedia of Chemical Technology数据库介绍及实例

Veterinary Clinics of North America. Food Animal Practice

Emphasizes the judgemental elements of interpretation in clinical pathology, hematology, clinical chemistry, and cytology. Features over 100 case histories covering all species. Each chapter, exclusive of those on technique, has a brief introduction followed by case discussions. Cases presented exemplify laboratory alterations associated with the disease affecting the system under review, and some cases can be used for self-evaluation.

Veterinary clinical pathology

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Tumors in Domestic Animals

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Anatomy and Physiology of Farm Animals

A survey of 7122 dromedary camels in 115 herds in Saudi Arabia was used to estimate the effects of herd size (HZ;  100 camels), herder/camels ratio (H/C; 1:  50), manager experience (ME;  10 years), male/females ratio (M/F), housing system (HS; free vs. closed vs. mixed), length of the breeding season (winter vs. winter and spring vs. fall, winter and spring), age at first mating (3 vs. > 3 years), and time of mating after parturition (≤ 3 vs. > 3 months) and their interactions on the overall pregnancy rate. Barren females of these herds (n = 886) were examined for the causes of infertility. Results showed that herds with H/C of 1:  50 (72.79%) (p = 0.003). Herds having ME of > 10 years revealed greater overall pregnancy rate (94.89%) than herds with ME of 5–10 years (80.54%) and those with ME of  3 years and in females bred within 3 months after parturition and in those bred after 3 months. The mean calving interval was shorter (p = 0.008) in camels mated within 3 months of parturition (15.25 ± 2.8 months) than in those mated after that time (24.33 ± 6.5 months). Clinical endometritis, ovarian hydrobursitis, and vaginal adhesions were the common clinical findings in barren females. Thus, efforts to reduce the age at first mating and the interval after calving, increase the number of herders/camels, and control reproductive disorders could improve the reproductive performance and quality of camel herds in Saudi Arabia.

Factors affecting reproductive performance in dromedary camel herds in Saudi Arabia.

Reference values for the genitalia of male dromedary before and after puberty using caliper and ultrasonography in subtropics.

Dystocia in dromedary camels: Prevalence, forms, risks and hematobiochemical changes.

Impotentia generandi in male dromedary camels: FSH, LH and testosterone profiles and their association with clinical findings and semen analysis data.

Article history: Received: 05 Feb 2011 Revised: 26 Apr 2011 Accepted: 07 May 2011

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Derar Derar

Papers

Factors affecting reproductive performance in dromedary camel herds in Saudi Arabia.

Reference values for the genitalia of male dromedary before and after puberty using caliper and ultrasonography in subtropics.

Dystocia in dromedary camels: Prevalence, forms, risks and hematobiochemical changes.

Impotentia generandi in male dromedary camels: FSH, LH and testosterone profiles and their association with clinical findings and semen analysis data.

Effect of Clomiphene Citrate on Follicular Recruitment, Development, and Superovulation During the First Follicular Wave in Rahmani Ewes