NM 13. Determination of the apparent ileal and total digestibility of seven foliage sweet-potato (Ipomoea batatas (L.) Lam.) varieties in pigs
Two experiments were performed with the purpose of determining the digestibility of 150 day old sweetpotato foliage (Ipomoea batatas (L.) Lam.), of seven cultivars. The first one was done on 8 ileorectomized pigs weighing 35 kg on an 8 x 8 Latin square treatment In each period three days were for adaptation to the diet and two for ileal digesta sampling. In the second experiment seven intact pigs weighing 30 kg BW, having the same characteristics as those in the first experiment were used. Each phase consisted of a five day adaptation period and a five day digesta sampling period. The apparent Ileal digestibility of the protein differed among cultivars (P<.05) The ileal values were higher and more accurate than the faecal ones indicating that most of the nitrogen does not adhere to the cellular wall. The digestibility of energy was found to be higher and more accurate using faecal technique showing differences among cultivars (P<.05). These results are probably due to different ripening processes among cultivars. The NDF showed higher values of faecal and ileal digestibility (with differences among cultivars (P<.05). It is concluded, that sweet-potato foliage is a good source of protein and high quality digestibility fiber.
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Asociacion Latinoamericana de Produccion Animal
2005
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| Online Access: | https://ojs.alpa.uy/index.php/ojs_files/article/view/157 |
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