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Article

Effect of Barley Variety on Feed Intake, Digestibility, Body Weight Gain and Carcass Characteristics in Fattening Lambs

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College of Agriculture and Veterinary Medicine, Jimma University, P.O. Box 378 Jimma, Ethiopia
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Department of Nutrition, Genetics, and Ethology, Faculty of Veterinary Medicine, Ghent University, Heidestraat 19, 9820 Merelbeke, Belgium
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International Centre for Agricultural Research in Dry Areas, P.O. Box 5689 Addis Ababa, Ethiopia
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School of Animal, Rural and Environmental Sciences, Brackenhurst Campus, Nottingham Trent University, Southwell NG25 0QF, Nottinghamshire, UK
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Author to whom correspondence should be addressed.
Academic Editor: Adriana Bonanno
Animals 2021, 11(6), 1773; https://doi.org/10.3390/ani11061773
Received: 7 May 2021 / Revised: 9 June 2021 / Accepted: 10 June 2021 / Published: 14 June 2021
(This article belongs to the Section Small Ruminants)
Using a native barley straw as reference, the barley straw from four improved varieties were tested on digestibility and performance in lambs. Differences were observed on feed intake, digestibility, body weight gain and feed-to-gain ratio among lambs fed straws from different barley varieties, pointing to the importance of genetic variation in the feeding value of barley straw.
Twenty lambs (18 ± 0.22 kg initial weight) were blocked by weight and individually assigned into pens to evaluate the effects of barley straw variety on digestibility, growth performance and carcass characteristics. The following four treatments were tested: (1) a local barley straw (as control), (2) HB1963 (high grain and straw yields), (3) Traveller (high straw yielder), and (4) IBON174/03 (high grain yielder). A concentrate (50:50 wheat bran and noug seed cake) was offered constantly (300 DM g), whereas the straw was offered ad libitum. The digestibility trial lasted 22 days (15 days to adapt to dietary treatments and 7 days for sampling). The growth performance trial lasted 90 days. At the end, all of the lambs were slaughtered, and their carcasses were evaluated. The IBON174/03 variety had a higher (p < 0.05) intake of organic matter and crude protein, a higher dry matter and organic matter digestibility than the control, and a faster growth than the control. The feed-to-gain ratio was similar among treatments. The slaughter and empty body weights of lambs in the IBON174/03 group were higher than the control variety (p < 0.05). The present study showed that the feeding value of barley straw can differ substantially between varieties and therefore must be considered in the choice of a barley variety. View Full-Text
Keywords: crop residue; variety; fattening performance; food; feed crop residue; variety; fattening performance; food; feed
MDPI and ACS Style

Keno, M.T.; Tolemariam, T.; Demeke, S.; Wamatu, J.; Alkhtib, A.; Janssens, G.P.J. Effect of Barley Variety on Feed Intake, Digestibility, Body Weight Gain and Carcass Characteristics in Fattening Lambs. Animals 2021, 11, 1773. https://doi.org/10.3390/ani11061773

AMA Style

Keno MT, Tolemariam T, Demeke S, Wamatu J, Alkhtib A, Janssens GPJ. Effect of Barley Variety on Feed Intake, Digestibility, Body Weight Gain and Carcass Characteristics in Fattening Lambs. Animals. 2021; 11(6):1773. https://doi.org/10.3390/ani11061773

Chicago/Turabian Style

Keno, Mulugeta T., Taye Tolemariam, Solomon Demeke, Jane Wamatu, Ashraf Alkhtib, and Geert P.J. Janssens 2021. "Effect of Barley Variety on Feed Intake, Digestibility, Body Weight Gain and Carcass Characteristics in Fattening Lambs" Animals 11, no. 6: 1773. https://doi.org/10.3390/ani11061773

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