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http://ri.uaemex.mx/handle20.500.11799/66273| Title: | Diet inclusion of devil fish (Plecostomus spp.) silage and its impacts on ruminal fermentation and growth performance of growing lambs in hot regions of Mexico | Keywords: | Average daily gain;Devil fish;Rumen fermentation;Silage;info:eu-repo/classification/cti/6 | Publisher: | Springer | Project: | Vol.;47 No.;5 |
Description: | The aim of this study was to evaluate the inclusion of devil fish (Plecostomus spp.—DF) silage in Criollo× Blackbelly lamb diets in hot region of Guerrero state of Mexico. Rumen fermentation including pH, volatile fatty acids (VFA) and ammonia-N (NH3-N) and productive variables including feed intake (FI), average daily gain (ADG), and feed conversion were determined. Twenty lambs with 18±1.2 kg body weight in a completely randomized design were fed a total mixed ration (TMR) of concentrate (based on soybean meal, whole oat hay, ground corn cob, vitamins-minerals supplement) with DF silage at 0 % (DF0), 9 % (DF9), 18 % (DF18), and 27 % (DF27) of the TMR for 75 days. The ruminal pH showed no difference (P>0.05) between treatments: ranging between 6.21 and 6.36. Propionic acid molar proportions showed an irregular pattern between experimental groups, which only differed (P<0.05) between DF9 and DF27, without differences between the other treatments. A greater molar proportion of butyric acid was noted (P<0.05) in DF27 when compared to the other treatments. The ruminal concentration of NH3-N showed some insignificant differences (P>0.05) among treatments. The daily FI was increased (P<0.01) in DF27 (1.131 g) when compared with DF0, while DF9 and DF18 showed intermediate consumption with no differences (P>0.05) among them. The ADG showed only difference (cubic effect, P=0.02) between DF9 and DF18. The highest feed conversion was observed (cubic effect, P<0.01) with DF18, with a value of 4.7 kg of feed to gain 1 kg of body weight. It could be concluded that the inclusion of up to 18 % of DF silage in the TMR of growing lamb diets, in hot regions of Mexico, may improve productive performance an | URI: | http://ri.uaemex.mx/handle20.500.11799/66273 | Other Identifiers: | http://hdl.handle.net/20.500.11799/66273 | Rights: | info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0 |
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