Liveweight estimation of cattle by scale and by tape, a method comparison study

Otte, M. J.; Woods, Anthony; Abuabara, Yesid

doi:10.1007/bf02356954

Cited by 15 publications

(11 citation statements)

References 3 publications

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“…The LBM of the sheep increased with age (Table 3). These results are in line with the conclusion made by Otte et al (1992) and Benyi (1997) that the HG, WH and LW are measurements that can be used to evaluate growth in ruminants. The LBM of the sheep with three pairs and those with four pairs of incisors were found to be similar (Table 3).…”

Section: Methodssupporting

confidence: 92%

Charaterisation of Zulu (Nguni) sheep using linear body measurements and some environmental factors affecting these measurements

Kunene¹,

Nesamvuni²,

Fossey³

2008

SA J. An. Sci.

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Data on linear body measurements (LBM) of ca. 100 Zulu sheep raised under extensive management systems at four sites in northern KwaZulu-Natal were collected over a period of 2.5 years (October 2000 to May 2003. Data were used to quantify the live weight (LW), heart girth (HG), wither height (WH) and scrotum circumference (SC) of sheep in different age groups as well as the effects of some environmental factors on their LBM. Teeth numbers were used to estimate the age of sheep. The variation in LBM was influenced significantly by the location where an animal was raised and by its age. Mature rams that have three and four pairs of incisors had LWs of 37 and 38 kg, HG of 79 and 80 cm and WH of 65 and 64 cm, respectively. Mature ewes had LWs of 30 and 32 kg, HG of 76 cm and WH of 62 and 61 cm. Differences of 15 kg, 18 kg and 22 kg in LW among sheep with full sets of milk teeth and 28 kg, 35 kg and 40 kg among mature sheep were found between populations. The SC increased with age in mature rams (three and four pairs of incisors) and was 27 cm as compared to 18 cm for younger rams. Ear size ranged from ear buds to large ears of 9 -14 cm. However, type of ear-length was found not to have any particular influence on the variation in LBM of Zulu sheep. It was concluded that an investigation of genetic variation between the populations would be necessary to develop effective conservation and utilization programmes and strategies for the breed. _______________________________________________________________________________________

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Section: Methodssupporting

confidence: 92%

Charaterisation of Zulu (Nguni) sheep using linear body measurements and some environmental factors affecting these measurements

Kunene¹,

Nesamvuni²,

Fossey³

2008

SA J. An. Sci.

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“…BCS was scored according to the methods used in a previous report [7], and body weight was measured by estimation tape as previously reported [14]. Weight change rate (WCR) was calculated using the following equation: WCR (%) = (body weight of current month -body weight of the preceding month) / body weight of current month × 100.…”

Section: Herds and Animalsmentioning

confidence: 99%

Evaluation by Weight Change Rate of Dairy Herd Condition

Kohiruimaki

Ohtsuka

Hayashi

et al. 2006

The Journal of Veterinary Medical Science

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ABSTRACT. The purpose of this study was to clarify whether weight change rate (WCR) is useful in evaluating herd health. Five herds (A, B, C, D, and E) were examined monthly for approximately 1 year to measure both WCR and BCS. WCR was calculated using the following equation: WCR (%) = (body weight of current month-body weight of the preceding month)/body weight of current month × 100. In addition, blood profiles were performed in each herd before and after calving. The incidence of periparturient diseases was higher in Herds A, B, and C compared with Herds D and E. Reproductive performance in Herds A and B was rather poor compared with Herds C, D, and E. There were significantly lower WCRs in Herd A compared with Herd C during the period of day -30 to day 30 after calving. According to the blood profiles, high levels of non-essential fatty acids (NEFA) were observed during the period of day -30 to -1 and high β-hidroxybutyricacid (BHB) and low levels of glucose were observed at day 30 after calving in Herd A. A marked poor condition in Herd A during the peripaturient period was clearly expressed by low WCR in this experiment. WCR can express body condition of herds and is suggested to be a useful parameter in the determination of herd performance in field experiments. KEY WORDS: dairy herd management, periparturient diseases, reproductive performance, weight change rate.

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“…Haemoglobin saturation, measured as oxygenation, was measured by a battery‐powered hand‐held pulse oximeter (Newtech, Guangdong, China), placed on the tongue. Body weight was estimated from morphometric measurements of recumbent animals, using the ‘weigh tape’ approach …”

Section: Methodsmentioning

confidence: 99%