Quantitative Evaluation of Age-Related Anatomical Characteristics of Selected Digestive Organs of Dromedary Camel

IF 3.8 3区农林科学 Q1 VETERINARY SCIENCES

Pakistan Veterinary Journal Pub Date : 2020-04-01 DOI:10.29261/pakvetj/2019.129

Anum Qureshi, Sarmad Rehan, M. Usman, Khizar Hayat, Zaima Umar, A. Sarfraz

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引用次数: 2

Abstract

Received: Revised: Accepted: Published online: August 04, 2019 December 07, 2019 December 09, 2019 December 31, 2019 This study was undertaken to explicate the age-related anatomical variations in the digestive system of dromedaries that might be very much helpful to understand its unique ability to digest different forages very efficiently than other ruminants. Digestive system organs were collected from 14 clinically healthy dromedaries of two age groups: young (1-2 years) or adult (>5 years) animals, after slaughtering for dissection and measurements. Before measuring and weighing various gastrointestinal sections, the mesentery, adipose tissue, and lymph nodes were removed. Studied parameters of upper digestive system included length and thickness of upper and lower lip along with philtrum, esophageal length and diameter. Furthermore, measurements of compound stomach viz rumino-reticulum length, height, diagonal and pillar thickness, both curvatures (dorsal and ventral), omasal and abomasum height, length and weight were also recorded. Lengths of the small and large intestines (small and large colon) were determined while containing digesta and morphological characters of liver (height, length and weight) were also estimated. An allometric regression model; Y (Model) = β (B.wt) × α was applied for bodyweight relation with digestive tract followed by analysis of means variance to compare the young and adult camels. Statistical analysis of anatomical parameters revealed a significant (P<0.05) improvement in the adult as compared to young dromedary group except the thickness of both (upper and lower) lip and philtrum for which non-significant (P>0.05) trend was recorded. Absolute weights of each organ were proved positively related to body weight, however, the relative weights were found negatively related to body weight. The age-related changes in the digestive system are obvious but quantification of these parameters may have a pivotal role to understand camel’s unique and efficient digestive system. ©2019 PVJ. All rights reserved

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骆驼某些消化器官年龄相关解剖特征的定量评价

接收：修订：接受：在线发布：2019年8月4日2019年12月7日2019年1月9日2019年2月31日本研究旨在解释单峰兽消化系统中与年龄相关的解剖变异，这可能非常有助于了解其比其他反刍动物更有效地消化不同牧草的独特能力。屠宰后，从两个年龄组的14只临床健康综合征中采集消化系统器官：幼兽（1-2岁）或成年（>5岁），进行解剖和测量。在测量和称重各种胃肠道切片之前，切除肠系膜、脂肪组织和淋巴结。研究的上消化系统参数包括上唇和下唇的长度和厚度以及人中、食管的长度和直径。此外，还记录了复胃的测量，即瘤胃网的长度、高度、对角线和支柱厚度、两个曲率（背侧和腹侧）、胃和胃的高度、长度和重量。在含有消化物的同时，测定了小肠和大肠（小肠和大肠）的长度，并估计了肝脏的形态特征（高度、长度和重量）。异速回归模型；采用Y（Model）=β（B.wt）×。解剖参数的统计分析显示有显著的（P0.05）趋势。各器官的绝对重量与体重呈正相关，而相对重量与体重呈负相关。与年龄相关的消化系统变化是明显的，但这些参数的量化可能对了解骆驼独特而有效的消化系统具有关键作用。©2019 PVJ。保留所有权利

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来源期刊

Pakistan Veterinary Journal 兽医-兽医学

CiteScore

4.20

自引率

13.00%

发文量

审稿时长

4-8 weeks

期刊介绍： The Pakistan Veterinary Journal (Pak Vet J), a quarterly publication, is being published regularly since 1981 by the Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan. It publishes original research manuscripts and review articles on health and diseases of animals including its various aspects like pathology, microbiology, pharmacology, parasitology and its treatment. The “Pak Vet J” (www.pvj.com.pk) is included in Science Citation Index Expended and has got 1.217 impact factor in JCR 2017. Among Veterinary Science Journals of the world (136), “Pak Vet J” has been i) ranked at 75th position and ii) placed Q2 in Quartile in Category. The journal is read, abstracted and indexed internationally.