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Sweet potato (Ipomoea batatas) vine silage: A cost-effective supplement for milk production in smallholder dairy-farming systems of East Africa?

Gakige, J. K.; Gachuri, C.; Butterbach-Bahl, K.; Goopy, J. P.

Abstract:
Context: Dairy production in East Africa is dominated by smallholder production systems, but is dogged by suboptimal milk production mediated by poor nutrition. Grain-based concentrates can be used to make the energy and protein deficits in rain-fed systems, but this strategy faces several hurdles. For livestock production systems to be sustainable, it is important that less human-edible food is fed to animals and sweet potato can serve both as a source of human food (tuber) and animal feed (vines). Smallholder scale-appropriate technology has been used to allow feed preservation of the perishable sweet potato vines for use throughout the year.
Aims: We assessed the efficacy of sweet potato vine silage plus wheat bran (SPVSWB) as a supplement to maintain milk production at a lower cost than that of grain-based commercial dairy concentrate (CDC).
Methods: Multiparous Holstein–Friesian cattle (n = 12) were given a basal diet of Napier grass (Pennisetum purpureum cv. South Africa), ad libitum, plus a fixed amount of either SPVSWB or CDC, (designed to be both isonitrogenous and iso-caloric) during late (LL) and early (EL) lactations.
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Verlagsausgabe §
DOI: 10.5445/IR/1000118229
Veröffentlicht am 05.06.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 02.03.2020
Sprache Englisch
Identifikator ISSN: 0816-1089, 1446-5574, 1836-0939, 1836-5787
KITopen-ID: 1000118229
HGF-Programm 12.02.01 (POF III, LK 01)
Effects of land use and climate change
Erschienen in Animal production science
Band 60
Heft 8
Seiten 1087-1094
Schlagwörter economic, evaluation, feed preservation, non-conventional feed, rain-fed system, tropical agriculture
Nachgewiesen in Scopus
Web of Science
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