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Erythrina foliage as an alternative feed for growing goats in Lao PDR

Kongmanila, Daovy (2012). Erythrina foliage as an alternative feed for growing goats in Lao PDR. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae, 1652-6880 ; 2012:61
ISBN 978-91-576-7708-2
[Doctoral thesis]

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Abstract

Foliages from some tropical plants and from different species of the legume Erythrina were examined in five studies assessing the characteristics of these foliages as feed for goats.

Digestibility and feed preference studies showed that ad libitum feeding of foliage from Erythrina (Erythrina variegata), jackfruit (Artocarpus heterophyllus) and kapok (Ceiba pentandra) resulted in a longer time spent eating and more changes in diet selection, feed intake, crude protein (CP) digestibility and nitrogen (N) retention than foliage from jujube (Ziziphus jujube Mill), fig (Ficus racemosa) and mango (Mangifera indica). Supplementation of low quality foliage with water spinach (Ipomoea aquatica) increased intake and apparent digestibility.

In a survey study, three different Erythrina spp., E. indica, E. subumbrans and E. variegata, were found in the north, centre and south of Lao PDR. These species were in limited use as an animal feed on smallholder farms. Erythrina variegata appeared to be a better option in terms of degradability than E. indica and E. subumbrans according to in vitro gas production and in sacco degradation studies.

A cropping study showed that cow manure or mineral fertiliser significantly decreased shoot mortality and increased shoot height and fresh and CP yield of E. variegata foliage compared with no fertiliser. The nutritive value of the foliage did not differ significantly between the fertilised and unfertilised treatments.

Studies on different degrees of processing (fresh or sun-dried) of E. variegata foliage showed similar CP, neutral detergent fibre and acid detergent fibre contents, and no difference in total voluntary intake, when either fresh or dry foliage was fed ad libitum to growing goats.

Four levels of replacement (0, 20, 40 and 60%) of dietary CP with CP from E. variegata foliage resulted in similar dry matter intake, apparent CP digestibility, N retention and carcass characteristics, but total CP intake was significantly higher in goats fed the diet with 60% replacement compared with 20%. Thus CP from E. variegata foliage can replace up to 60% of CP in a mixed diet with soybean meal without any negative effects on animal growth performance.

Authors/Creators:Kongmanila, Daovy
Title:Erythrina foliage as an alternative feed for growing goats in Lao PDR
Series/Journal:Acta Universitatis agriculturae Sueciae (1652-6880)
Year of publishing :25 September 2012
Volume:2012:61
Number of Pages:58
Papers/manuscripts:
NumberReferences
I.Kongmanila, D. and Ledin, I. (2009). Chemical composition of some tropical foliage species and their intake and digestibility by goats. Asian- Australasian Journal of Animal Sciences 22 (6), 803-811.
II.Daovy, K., Preston, T.R. and Ledin, I. (2008). Selective behaviour of goats offered different tropical foliages. Livestock Research for Rural Development 20 (5), 1-7.
III.Kongmanila, D., Bertilsson, J., Ledin, I. and Wredle, E. (2012). Effect of feeding different levels of foliage from Erythrina variegata on the performance of growing goats. Tropical Animal Health and Production 44 (7), 1659-1665.
IV.Kongmanila, D., Bertilsson, J., Ledin, I. and Wredle, E. (2012). Utilisation of some Erythrina species and biomass production of Erythrina variegata. Livestock Research for Rural Development 24 (8), 1-8.
V.Kongmanila, D., Bertilsson, J., Ledin, I., Yuangklang, C. and Wredle, E. Assessment of degradability and intake of Erythrina species by goats (submitted).
Place of Publication:Uppsala
Publisher:Dept. of Animal Nutrition and Management, Swedish University of Agricultural Sciences
ISBN for printed version:978-91-576-7708-2
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:F Plant production > F62 Plant physiology - Growth and development
L Animal production > L02 Animal feeding
Q Food science > Q51 Feed technology
Q Food science > Q54 Feed composition
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 402 Animal and Dairy Science > Animal and Dairy Science.
Agrovoc terms:goats, erythrina, foliage, animal nutrition, feed intake, nutritive value, digestibility, rumen degradability, feeding preferences, meat performance, carcass composition, lao people's democratic republic
Keywords:Erythrina variegata, Erythrina subumbrans, Erythrina indica, Tropical foliage, Growth performance, Carcass characteristics, Degradability, Intake, Digestibility, Feed preference
URN:NBN:urn:nbn:se:slu:epsilon-e-624
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-624
ID Code:9093
Department:(VH) > Dept. of Animal Nutrition and Management
External funders:Swedish International Development Cooperation Agency
Deposited By: Mrs Daovy Kongmanila
Deposited On:26 Sep 2012 06:47
Metadata Last Modified:02 Dec 2014 10:52

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