Effect of olive leaves and twigs on intake, digestibility, growth performance and blood parameters of Shami goats

Alkhtib, A. ORCID: 0000-0002-3381-0304, Muna, M., Burton, E. ORCID: 0000-0003-2784-6922, Wamatu, J., Darag, M., Alkhalid, I., Al-asa’ad, Z., Mfeshi, H. and Zayod, R., 2020. Effect of olive leaves and twigs on intake, digestibility, growth performance and blood parameters of Shami goats. Veterinary Medicine and Science. (Forthcoming)

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Abstract

The effect of replacing wheat straw and a portion of commercial concentrate with olive twigs and leaves treated with urea and molasses on nutrient digestibility, growth performance and blood variables was determined. Forty-two Shami goat kids (20±2.47 kg live weight and 133±5.44 days of age) were randomly allotted to three dietary treatment groups, control (75% commercial concentrate and 25% wheat straw), OTU (62.3% commercial concentrate +37.7% olive twigs and leaves treated with 4% urea for 14 days), OTUM (51.5 % concentrate mixture +48.5% olive twigs and leaves treated with 4% urea for 14 days then sprayed by 10% molasses). Cost (SYP/t) of control, OUT and OTUM was 12,600, 10,066 and 10,106 respectively. The study consisted of a growth trial of 100 days and a digestibility trial of 12 days (7 days of adaptation and 5 days of urine and faeces collection). Serum urea, total protein, albumin, alanine aminotransferase activity, aspartate aminotransferase activity, glucose, cholesterol, creatinine, haemoglobin and packed cell volume were determined. Daily dry matter intake, digestibility of crude protein, ether extract and nutrient detergent fibre did not significantly differ among the dietary treatments (P>0.05). Nitrogen intake, nitrogen excretion in urine and faeces and nitrogen balance was not significantly affected (P>0.05) by the dietary treatment. The dietary treatment did not have any significant effect on average daily gain, feed conversion ratio or blood variables (P>0.05). Olive twigs treated with 4% urea and OTUM replaced 37.7% and 48.5% of conventional diets of growing Shami goat kids without negative effects on growth performance nor health and potentially reduced fattening costs for farmers in olive-livestock mixed systems by 19.8 and 20% respectively. OUT is technically simpler than OTUM, thus, it could replace the conventional fattening ration of Shami male goat.

Shami goat were fed on Olive twigs treated with 4% urea and 10% Olive twigs treated with 4% urea replaced 48.5% of the ration without negative effect on growth performance. This replacement did not affect goat health but decreased feeding cost by 20%.

Item Type: Journal article
Publication Title: Veterinary Medicine and Science
Creators: Alkhtib, A., Muna, M., Burton, E., Wamatu, J., Darag, M., Alkhalid, I., Al-asa’ad, Z., Mfeshi, H. and Zayod, R.
Publisher: Wiley Open Access
Date: 9 December 2020
Identifiers:
NumberType
1394433Other
Rights: © 2021 The Authors. Veterinary Medicine and Science published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Divisions: Schools > School of Animal, Rural and Environmental Sciences
Record created by: Linda Sullivan
Date Added: 25 Feb 2021 10:49
Last Modified: 25 Feb 2021 10:53
URI: http://irep.ntu.ac.uk/id/eprint/42382

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