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关于马来西亚吉打-吉兰丹牛的表型和形态特征的首次研究以及估计其体重的方法。

First study on phenotypic and morphological characteristics of Malaysian Kedah-Kelantan cattle () and method of estimating their body weight.

作者信息

Islam Mohammed Sirajul, Yimer Nurhusien, Haron Abd Wahid, Abdullah Faez Firdaus Jesse, Han Mark Hiew Wen, Mamat-Hamidi Kamalludin, Zawawi Hafizah Binti Mohamad

机构信息

Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.

Animal Production Research Division , Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh.

出版信息

Vet World. 2022 Mar;15(3):728-736. doi: 10.14202/vetworld.2022.728-736. Epub 2022 Mar 26.

Abstract

BACKGROUND AND AIM

Indigenous Kedah-Kelantan (KK) cattle are well adapted with distinguished reproductive capabilities; they account for more than 70% of the domestic beef production in Malaysia. The published literature on the phenotypic and morphometric characteristics of KK cattle are sparse and require further improvement. Therefore, this study was aimed to determine the phenotypic and morphometric characteristics of Malaysian KK cattle and method of estimating live body weight (BW).

MATERIALS AND METHODS

Morphometric and phenotypic measurements were taken from 184 KK cattle (102 males and 82 females) sourced from three regions. Each animal's color pattern was recorded for their coat, muzzle, face, eyelashes, horns, tail switch, hoof, and legs through visual observation. Length measurements were taken of the body, face, ear, horn, tail, and rump. Several morphological features such as length, width, and girth were measured using a measuring tape, while wither height and hip height were assessed with a measuring scale.

RESULTS

Brown is the predominant coat color in KK cattle (>82%). The overall means of head length, face width (FW), ear length, horn length, wither height, heart girth (HG), body length (BL), and rump length were 42.5±4.5, 17.3±2.9, 19.8±3.1, 9.9±4.4, 104.3±7.1, 127.4±13.2, 98.3±12.3, and 32.4±4.1 cm, respectively. Different morphometric parameters of length, width, and circumference were significantly ( p<0.01) larger in males than females, except for tail length and TG. Correlation coefficient and multiple regression analysis clearly revealed that BL is the best parameter for estimating live BW in KK cattle.

CONCLUSION

Phenotypic and morphometric measurements in this study showed that Malaysian KK cattle generally possess a brown coat pattern with smaller body size, while BL revealed to be the best parameter to predict BW. The data generated from this study would be useful as baseline data for the identification and selection of KK cattle based on their phenotypical- and morphological-features for further improvement of this breed.

摘要

背景与目的

吉打 - 吉兰丹(KK)本土牛适应性良好,具有卓越的繁殖能力;它们占马来西亚国内牛肉产量的70%以上。关于KK牛的表型和形态特征的已发表文献稀少,需要进一步完善。因此,本研究旨在确定马来西亚KK牛的表型和形态特征以及估计活体体重(BW)的方法。

材料与方法

对来自三个地区的184头KK牛(102头雄性和82头雌性)进行形态和表型测量。通过视觉观察记录每头牛的毛色图案,包括被毛、口鼻部、面部、睫毛、角、尾梢、蹄和腿部。测量身体、面部、耳朵、角、尾巴和臀部的长度。使用卷尺测量长度、宽度和周长等几个形态特征,同时用测量尺评估肩高和臀高。

结果

棕色是KK牛的主要毛色(>82%)。头部长度、面部宽度(FW)、耳朵长度、角长度、肩高、胸围(HG)、体长(BL)和臀长的总体均值分别为42.5±4.5、17.3±2.9、19.8±3.1、9.9±4.4、104.3±7.1、127.4±13.2、98.3±12.3和32.4±4.1厘米。除了尾巴长度和TG外,雄性的长度、宽度和周长等不同形态参数显著(p<0.01)大于雌性。相关系数和多元回归分析清楚地表明,BL是估计KK牛活体BW的最佳参数。

结论

本研究中的表型和形态测量表明,马来西亚KK牛通常具有棕色毛色图案,体型较小,而BL被证明是预测BW的最佳参数。本研究产生的数据将作为基于KK牛的表型和形态特征进行识别和选择的基线数据,以进一步改良该品种。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b812/9047116/a5206b7b8f62/Vetworld-15-728-g001.jpg

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