Sex influence on muscle yield and physiochemical characteristics of common eland (Taurotragus oryx) meat.

The biodiversity economy provides an important boost to socio-economic development in many developing countries. Yet access and participation by previously disadvantaged individuals (PDIs) has been...

Potential benefits associated with implementation of the national biodiversity economy strategy in the Eastern Cape Province, South Africa

Genetic variation among different springbok (Antidorcas marsupialis) colour variants

Much of the economic value of wildlife can be attributed to horn size, which is an important trait for trophy hunters The main objective of the study was to estimate genetic parameters for the economically important horn traits of sable antelope that are currently being measured in the South African industry To date, no quantitative genetic analysis has been done for any traits in sable antelope The total number of records included in the evaluation were n = 1713 for horn length (SHL), n = 1503 for circumference (SHC), n = 1486 for tip to tip (SHTT), n = 1505 for tip length (SHT), and n = 1447 for rings (SHR) Males and females were considered separately in six-month age clusters A Markov chain Monte Carlo (MCMC) multi-trait analysis was used to estimate (co)variance parameters for the horn traits The results indicate a sex effect for all the traits and suggest that it is not economically viable to measure horn length of either sex after 54 months old The horns of females are on average 40% shorter compared with bulls at maturity Continuous horn growth throughout the lifetime of sable is suggested by the formation of ring posts, but is often masked by horn attrition and inadequate measuring techniques An inbreeding coefficient of 00043 suggests adequate genetic diversity in the studied population Heritability estimates of horn traits varied from 0085 to 052, while genetic correlations ranged from 01 to 06 with the highest correlation being found between horn length and tip to tip Further studies are recommended to confirm these results Keywords: Game, genetic evaluation, heritability

/pdf/evaluating-horn-traits-of-economic-importance-in-sable-1g2qlwosv7.pdf

Evaluating horn traits of economic importance in sable antelope ( Hippotragus niger niger )

In contrast to other game species and domestic livestock, there is a paucity of evidence concerning yields and thus meat obtained from the African savanna buffalo (Syncerus caffer caffer ). The aim of our study was to investigate the effects of age (categorized) and sex on buffalo carcass yields. Towards this goal, male (n = 17) and female (n = 13), and adult (n = 23) and subadult (n = 7) buffaloes were slaughtered, and the weight of the carcass and various organs/offal and six major muscles [(biceps femoris (BF), semimembranosus (SM), semitendinosus (ST), longissimus thoracis et lumborum (LTL), infraspinatus (IS) and supraspinatus (SS)] determined. Buffaloes had a high dressing percentage, calculated from the warm carcass weight, and with the heaviest muscle weights measured for the BF, SM and LTL muscles. Adults had heavier muscle weights than subadults, and all parameters except the heart and IS muscle weight differed significantly between these age groups. In addition, the skin and head weight differed significantly between males and females. In summary, African savanna buffalo yields (∼58%) compared favourably to other domestic animals, with the heavy weight of valuable muscles suggesting their commercial potential as a high-end value-added product.

Carcass yields of African savanna buffalo (Syncerus caffer caffer)

Book Title: The New Game Rancher Book Authors:  Pamela & Peter Oberem (compiling editors) 2016, Briza Publications, P.O. Box 11050, Queenswood 0121, South Africa 373 pages, hardcover ISBN 978-1-920217-62-4. Price R450.00

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