Pok, Samkol
(2018).
Groundnut foliage as feed for Cambodian cattle.
Diss. (sammanfattning/summary)
Uppsala :
Sveriges lantbruksuniv.,
Acta Universitatis Agriculturae Sueciae, 1652-6880
; 2018:26
ISBN 978-91-7760-192-0
eISBN 978-91-7760-193-7
[Doctoral thesis]
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Abstract
This thesis explored smallholder cattle production in Cambodia and investigated the nutritive value of groundnut (Arachis hypogaea L.) foliage and/or cassava (Manihot esculenta, Crantz) tops as protein supplementation for cattle production.
The majority of households surveyed kept 1-3 cattle and the most common cattle management system was grazing with supplementation. There was shortages in feed resources particularly during the dry season, when mainly rice straw and low quality natural pasture were available. The major constraint to cattle production in the agro-ecological zones of the Great Lake floodplain, Mekong floodplain and Coastal zone was found to be low breed quality, while diseases were identified as the main constraint in the Plateau/Mountainous zone.
Foliage from groundnut, left as crop residues, was examined for its potential as a protein supplement to a basal diet of rice straw and para grass for growing cattle. Increased levels of sun-dried groundnut foliage (DGF) improved total dry matter intake, crude protein digestibility and nitrogen retention in cattle. Daily weight gain was higher on the supplemented diets than on the control diet, but did not differ among levels of supplementation. Supplementation of DGF at levels of 2 or 3 g crude protein per kg body weight increased microbial protein production and the efficiency in microbial crude protein production in cattle.
Responses in rumen fermentation characteristics were investigated in adult cattle using dried cassava tops (DCT) alone or in combination with DGF as a protein supplement to a basal diet of rice straw and para grass. Total dry matter intake increased when animals received diets containing DGF or DGF combined with DCT. However, the diet containing DCT had the lowest digestibility of crude protein and neutral detergent fibre. The ruminal ammonia nitrogen and total volatile fatty acid response increased with all diets containing supplements.
Keywords: apparent digestibility, ammonia nitrogen, daily weight gain, feed intake, microbial crude protein, smallholder cattle production, volatile fatty acids.
Author’s address: Pok Samkol, Centre for Livestock and Agriculture Development (CelAgrid), Phnom Penh, Cambodia,
P.O. Box 2423, Phnom Penh 3, Cambodia.
Authors/Creators: | Pok, Samkol | ||||||||
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Title: | Groundnut foliage as feed for Cambodian cattle | ||||||||
Series Name/Journal: | Acta Universitatis Agriculturae Sueciae | ||||||||
Year of publishing : | 2018 | ||||||||
Depositing date: | 23 April 2018 | ||||||||
Number: | 2018:26 | ||||||||
Number of Pages: | 50 | ||||||||
Papers/manuscripts: |
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Place of Publication: | Uppsala | ||||||||
Publisher: | Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences | ||||||||
ISBN for printed version: | 978-91-7760-192-0 | ||||||||
ISBN for electronic version: | 978-91-7760-193-7 | ||||||||
ISSN: | 1652-6880 | ||||||||
Language: | English | ||||||||
Additional Information: | LW180425 | ||||||||
Publication Type: | Doctoral thesis | ||||||||
Full Text Status: | Public | ||||||||
Agris subject categories.: | L Animal production > L01 Animal husbandry L Animal production > L02 Animal feeding L Animal production > L51 Animal physiology - Nutrition | ||||||||
Subjects: | (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 402 Animal and Dairy Science > Animal and Dairy Science. | ||||||||
Agrovoc terms: | small farms, animal production, nutrient intake, animal feeding, Arachis hypogaea, Manihot esculenta, ammonia nitrogen, weight gain, fatty acids, Cambodja | ||||||||
Keywords: | apparent digestibility, ammonia nitrogen, daily weight gain, feed intake, microbial crude protein, smallholder cattle production, volatile fatty acids | ||||||||
URN:NBN: | urn:nbn:se:slu:epsilon-e-4839 | ||||||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4839 | ||||||||
ID Code: | 15435 | ||||||||
Faculty: | VH - Faculty of Veterinary Medicine and Animal Science | ||||||||
Department: | (VH) > Institutionen för husdjurens utfodring och vård | ||||||||
External funders: | Swedish International Development Cooperation Agency | ||||||||
Deposited By: | Mr. Samkol Pok | ||||||||
Deposited On: | 25 Apr 2018 13:59 | ||||||||
Metadata Last Modified: | 09 Sep 2020 14:17 |
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