[en] The effects of tropical forage legumes on feed intake, growth performance and carcass traits were investigated in 16 groups of two Large White × Duroc pigs. The diets
consisted of a commercial corn–soybean meal diet as the basal diet and three forage-supplemented diets. Four groups of control pigs received daily 4 % of body weight of the basal diet, and 12 groups of experimental pigs were fed the basal diet at 3.2 % of body weight completed with fresh leaves of one of the three forage legumes (Psophocarpus scandens, Stylosanthes guianensis and Vigna unguiculata) ad libitum.
The study lasted 90 days. The in vitro digestion and fermentation of the forage legumes were also determined. The in vitro digestible energy content of the legumes was between
0.72 and 0.77 that of the basal diet (14.4 MJ/kg dry matter (DM)). V. unguiculata was the most digestible forage legume expected for crude protein digestibility. Feeding forage legumes lowered the dry matter intake by 4.5 to 9.6 % (P< 0.05), final body weight (P= 0.013), slaughter weight, average daily gain and hot carcass weight (P< 0.05) without
affecting the feed conversion ratio (FCR), dressing percentage and back fat thickness. In conclusion, using forage to feed pig could be interesting in pig smallholder productionwith limited access to concentrate, as FCR was not significantly affected.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Kambashi Mutiaka, Bienvenu ; Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Zootechnie
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