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Feeding Value (feeding + value)
Selected AbstractsFeeding value of enset (Ensete ventricosum), Desmodium intortum hay and untreated or urea and calcium oxide treated wheat straw for sheepJOURNAL OF ANIMAL PHYSIOLOGY AND NUTRITION, Issue 1 2009A. Nurfeta Summary Feed intake, in vivo nutrient digestibility and nitrogen utilization were evaluated in male sheep fed different fractions (leaf, pseudostem, corm, whole plant) of enset, untreated or 2% urea- and 3% calcium oxide- (CaO or lime) treated wheat straw and Desmodium intortum hay as sole diets. All feeds, except D. intortum hay and enset leaf had low crude protein (CP) content. Non-fiber carbohydrate contents were higher in enset fractions, especially in pseudostem and corm relative to other feeds. Enset leaf and pseudostem had high calcium, phosphorus and manganese contents. Corm, whole enset and D. intortum hay were rich sources of zinc. Daily dry matter and CP intakes were higher (p < 0.05) in sheep fed D. intortum hay (830 and 133 g, respectively) than those fed pseudostem (92 and 7.8 g, respectively). Organic matter digestibilities were highest for corm (0.780) and whole enset (0.776) and lowest for D. intortum hay (0.534) and untreated wheat straw (0.522). The CP digestibility ranged from 0.636 in D. intortum hay to 0.408 in corm. Nitrogen (N) balance was highest (p < 0.05) in D. intortum hay (10.4 g/day) and lowest in corm (,1.3 g/day). Enset leaf could be a useful protein supplement whereas the pseudostem and corm could be good sources of energy. [source] Feeding value of total mixed ration silage with spent mushroom substrateANIMAL SCIENCE JOURNAL, Issue 2 2010Chuncheng XU ABSTRACT Six wethers were used in a digestibility experiment arranged as replicated 3 × 3 Latin square to evaluate the nutritive value of total mixed ration (TMR) silages that were made from ensiling of TMR containing 0, 6.5 and 13.0% (dry matter basis) of spent mushroom substrate (SMS) for 45 days (treatments denoted as CSMS, LSMS and HSMS, respectively). The amount of SMS replaced the same amount of timothy hay in the respective TMR. All TMR were well preserved as indicated by their low pH, low ammonia-N and high lactic acid contents. Increasing levels of SMS in the TMR silage quadratically reduced (P < 0.05) nutrient digestibility with the exception of ether extract. The difference of total digestible nutrients and digestible energy contents between LSMS and CSMS TMR silage were less than those between LSMS and HSMS. Increasing concentration of SMS in the ration tended to decrease content of total volatile fatty acids in rumen fluid but increased the ratio of acetate to propionate and pH. The study suggests that a SMS level of 6.5% in the diet DM can be recommended for silage based TMR. [source] The effect of harvest date and inoculation on the yield, fermentation characteristics and feeding value of forage pea and field bean silagesGRASS & FORAGE SCIENCE, Issue 3 2001M. D. Fraser Two experiments describe the ensiling potential of whole-crop forage peas (Pisum sativum) and field beans (Vicia faba). In Experiment 1, forage peas (cv. Magnus) and field beans (cv. Mayo) were harvested at 10, 12 and 14 weeks after sowing, and ensiled in 10 kg mini-silos either untreated or treated with an inoculant (Lactobacillus plantarum). In terms of yield and ensiling potential, the optimum growth stage for harvesting forage peas occurred at 12 weeks of growth. In contrast, delaying the harvest of field beans until 14 weeks gave the highest yields of dry matter (DM) and crude protein (CP). Changes in crop maturity had little effect on the chemical composition of the fresh forages, but between-harvest date differences were observed in the DM, ammonia-N, CP, water-soluble carbohydrates (WSC), acid-detergent fibre (ADF), neutral-detergent fibre (NDF), lactic acid and volatile fatty acids (VFA) concentrations and pH of the corresponding silages. Fermentation was improved by applying an inoculant. In Experiment 2, forage peas and field beans were harvested at 14 weeks after sowing and ensiled as round-bale silage, either untreated or treated with an inoculant. The yields of the crops were similar, and the only difference in the chemical composition of the wilted forages was a higher CP concentration in the field beans. However, after the ensiling process was complete, the forage pea silages were found to have significantly higher DM, WSC, starch and butyric acid concentrations compared with the field bean silages, and lower ammonia-N, CP, ADF, acetic acid and lactic acid concentrations. Inoculation was found to increase the lactic acid concentration and reduce the pH and ammonia-N and acetic acid concentrations of the silages. Each of the silages produced in Experiment 2 was offered to six Suffolk crossbred wether lambs, aged 10 months. Voluntary DM intakes were similar on all treatments, despite the apparent digestibility of the forage pea silages being significantly higher than that of the field bean silages. Nitrogen retention was higher for lambs offered forage pea silage. Application of an inoculant was found to have a negative effect on the amount of N retained, indicating the necessity for more detailed investigations into proteolytic activity within these crops during the fermentation process. [source] Untersuchungen an wachsenden Schweinen zum Futterwert einer neuen Ackerbohnensorte (Vicia faba L.) bei Ergänzung mit DL -Methionin oder DL -Methionin-HydroxyanalogJOURNAL OF ANIMAL PHYSIOLOGY AND NUTRITION, Issue 1-2 2002HJ. ABEL Investigations in growing pigs on the feeding value of a new cultivar of field beans (Vicia faba L.) supplemented with DL -methionine or DL -methionine-hydroxyanalogue A basal control mixture of barley, soy bean meal and soy bean oil was replaced by 25% of the new field bean-cultivar `Divine' and the resulting two mixtures were supplemented with minerals, trace elements, vitamins and amino acids according to the ideal protein concept. The control diet was adjusted with DL -methionine (DL -Met), the field bean mixture either with DL -Met or DL -methionine-hydroxyanalogue (DL -MHA) assuming biological equivalence on a molar basis for both supplements. The three experimental diets were fed to growing pigs (35,40 kg bwt.). Spontaneous urine samples were analysed separately for determining parameters that characterize the acid-base status of the pigs. There were no significant differences between experimental groups in nutrient digestibilities. The level of bacterially fermentable substances was increased in the diets containing field beans. The field beans contained 14 mg ME/kg DM. There were no significant (p < 0,05) differences in N- and mineral-retentions (Ca, P, Na, K) between the treatments. The stronger alkalinity found in urine after feeding the field bean mixtures resulted from a higher electrolyte balance of the diet. Eine Kontrollration aus Gerste, Sojaschrot und Sojaöl wurde zu 25% durch Ackerbohnen der neugezüchteten Sorte `Divine' ersetzt und beide Mischungen mit Mineral- und Wirkstoffen sowie Aminosäuren ergänzt. Die Ergänzung mit Methionin erfolgte in der Kontrollmischung mit DL -Methionin, in der Ackerbohnenmischung mit DL -Methionin (DL -Met) oder DL -Methionin-Hydroxyanalog (DL -MHA) unter Zugrundelegung der molaren Wirkungsäquivalenz der beiden Supplemente. Die resultierenden drei Futtermischungen wurden in Stoffwechselversuchen an Schweine (35,40 kg LM) gefüttert. Separate Spontanharnproben wurden auf Parameter des Säure-Basen-Haushalts der Tiere untersucht. Zwischen den Versuchsgruppen traten keine signifikanten Unterschiede in den Nährstoffverdaulichkeiten auf. Die Gehalte an bakteriell fermentierbarer Substanz wurden durch Ackerbohnen erhöht. Der Gehalt der Ackerbohnen an umsetzbarer Energie lag bei 14 MJ ME/kg T. Die N- und Mineralstoffretentionen (Ca, P, Na, K) der Schweine unterschieden sich zwischen den Fütterungsgruppen nicht signifikant (p < 0,05). Die bei Ackerbohnenfütterung gesteigerte Harn-Alkalität ließ sich auf erhöhte kaliumbedingte Elektrolytbilanzen des Futters zurückführen. [source] | ||||||||||