Tackling the future challenges of Organic Animal Husbandry - vTI

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! Agriculture and Forestry Research, Special Issue No 362 (Braunschweig, 2012) ISSN 0376-0723 Download: www.vti.bund.de/en/startseite/vti-publications/landbauforschung-special-issues.html and found to be relatively rich in crude protein and condensed tannins (Wanapat et al. 1997). Feeding cassava foliage in the form of sun-dried hay has been reported to reduce faecal egg count in grazing buffaloes (Granum et al. 2003). However, wilting cassava foliage promises to be a simpler and more reliable procedure compared to sun-drying in livestock feeding (Chhay Ty et al. 2007). This project was conducted to determine the effect of wilted cassava foliage supplementation on growth and parasitic infestation in goats under the village system of management in Nigeria. Materials and method The experiment was carried out at Idera Araromi community in Odeda Local Government area of Ogun State, south-west, Nigeria. Twelve goats of the West African dwarf breed with age ranging from 6-8months, managed on free grazing were randomly selected from the farmers herd. Records from goat’s owners confirmed that these animals have not been subjected to any anthelmintic treatment in the last six months. The goats were randomly allocated to two treatments of six replicates each namely: wilted cassava foliage (T1) and albendazole (T2) administered at the onset and 30 days of the experiment. The animals were tagged individually for identification throughout the 56 days duration of the experiment. Cassava foliage variety (TMS 30572) was collected fresh and wilted for 24hrs before been offered to the animals’ ad-libitum, albendazole were administered at 2 ml/10 kg body weight to each animal, dozed by mouth orally using the barrel of syringe on day zero according to body weight as recommended by the manufacturers. Individual weights of goats were taken at the onset of the experiment and weekly thereafter with the aid of a spring balance. Faecal samples were collected directly from the rectum of each goat on weekly basis post treatment and analyzed using the Modified McMaster counting technique for the faecal egg count to determine the efficacy of the anthelmintic used. The chemical composition of the wilted cassava foliage was determined (AOAC, 1995), tannin content (Makkar, 1993) and hydrocyanic content (HCN) content (Bradbury, 1999). Data collected were subjected to analysis of variance using completely randomized design (SAS, 1999) and means compared using t-test. Results and discussion The chemical composition of wilted cassava foliage (WCF) used as a supplement to village goats are shown in Table 1. The values were within the range reported (Preston et al. 2001). The crude protein (CP) content of WCF in this study which is lower than some values reported in literature (Chhay Ty et al. 2007) might be due to the exposure of cassava foliage to the sun which has been found to affect the protein content of dried cassava foliage when compared to the fresh foliage. The HCN content of WCF is lower than that reported by Chhay Ty et al. (2007) while the tannin content agreed with earlier studies (Wanapat et al. 1997), confirming that cassava foliage is relatively rich in condensed tannins. Table 1. Chemical composition of wilted cassava foliage supplemented to goats 114 Constituents Composition Dry matter (%) 40.32 Crude protein (%) 22.64 Crude fibre (%) 11.51 Hydrocyanic acid (mg/kg) 18.62 Tannin (%) 2.11 Table 2 shows the values for weight changes in village managed goats supplemented with WCF and albendazole. Weight gain (g/day) of goats differed significantly (P < 0.05) among treatments. Goats supplemented with WCF however, had a better (P
RAHMANN G & GODINHO D (Ed.) (2012): Tackling the Future Challenges of Organic Animal Husbandry. Proceedings of the 2 nd OAHC, Hamburg/Trenthorst, Germany, Sep 12-14, 2012 performance of goats on T1 could be attributed to the effect of supplemental WCF that contain good quality protein with condensed tannins. Cassava foliage fed in different forms have been reported to provide good source of protein, improve digestibility and reduce intestinal parasites in goats (Phengvichith and Ledin, 2006). Table 2. Mean weight changes of goats supplemented with wilted cassava foliage Parameters T1 T2 SEM Initial weight (kg) 8.17 8.07 0.09 Final weight (kg) 10.93 9.84 0.11 Weight gain (kg) 2.76a 1.77b 0.02 Weight gain (g/day) 48.29a 31.61b 4.87 Mean across rows with different superscripts are significantly different (P
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Sonderheft 362 Special Issue Tackli
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Landbauforschung vTI Agriculture an
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Foreword Organic animal husbandry s
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Content RAHMANN G & GODINHO D (Ed.)
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Introduction RAHMANN G & GODINHO D
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Abstract RAHMANN G & GODINHO D (Ed.
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Discussion RAHMANN G & GODINHO D (E
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Results RAHMANN G & GODINHO D (Ed.)
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FEC adjusted for dry matter 12000 1
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Conclusions RAHMANN G & GODINHO D (
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Introduction RAHMANN G & GODINHO D
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Kg liveweight (mean) RAHMANN G & GO
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348 Herwart Böhm (Hrsg.) (2011) Op
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