فهرست مقالات alfalfa hay

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  1 - The Effects of Indigestible Neutral Detergent Fiber (iNDF) of Alfalfa Hay and Corn Silage on Ruminal Degradability of Ration Fiber in Sheep
  س. یوسفیان ا. تیموری یانسری ی. چاشنی دل
  Two experiments were carried out to evaluate the effects of indigestible neutral detergent fiber (iNDF) of ration for estimation of rumen degradability of fiber in sheep. In experiment 1, to determine feed iNDF, four ruminal fistulated Zel ewes were used. Three grams of چکیده کامل

  Two experiments were carried out to evaluate the effects of indigestible neutral detergent fiber (iNDF) of ration for estimation of rumen degradability of fiber in sheep. In experiment 1, to determine feed iNDF, four ruminal fistulated Zel ewes were used. Three grams of alfalfa hay, corn silage, barley grain, wheat bran, ration 1 (including alfalfa hay and concentrate), and ration 2 (including corn silage and concentrate) in four replications were put in nylon bags and incubated in the rumen for 288 h. In experiment 2, the ruminal degradation of dry matter (DM), NDF, iNDF and potential digestible NDF (pdNDF) of alfalfa hay, corn silage, in both ration 1 and 2, were determined with in situ method using four ruminal fistulated Zel ewes. Rumen disappearance of DM at 0 and 2 hour incubation time and NDF at 96 hour incubation time in ration 2 were higher. The soluble, slowly degraded fractions, and rate of degradation in rations 1 and 2 were 28.93 and 25.93%; 50.40 and 46.26%; 2.36 and 3.19 %/h for DM; 11.81 and 11.74%; 61.37 and 46.32%, and 1.74 and 2.33 %/h for NDF, respectively. The iNDF content in alfalfa hay, corn silage, barley grain, wheat bran, ration 1 and 2 were 30.74 ± 3.02, 16.84 ± 2.14, 4.77 ± 1.48, 11.75 ± 2.29, 21.32 ± 0.77, and 11.42 ± 0.91% of DM, respectively. The results showed that despite the similarities in NDF content in both rations, difference in the iNDF content could affect on degradability in rumen. پرونده مقاله
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  2 - The Effects of Various Essential Oils of Medical Plant Seeds and Spices on Digestion Characteristics and Population Changes of Ruminal Anaerobic Fungi in <i>in vitro</i> Condition
  م. سجادیان م. دانش مسگران ع.ر. وکیلی
  The effect of essential oils (EO) of medical plant seeds and spices on rumen microbial fermentation of alfalfa hay, sugar beet pulp and barley grain (as substrate) were evaluated under in vitro conditions. In vitro incubations were carried out using the gas production m چکیده کامل

  The effect of essential oils (EO) of medical plant seeds and spices on rumen microbial fermentation of alfalfa hay, sugar beet pulp and barley grain (as substrate) were evaluated under in vitro conditions. In vitro incubations were carried out using the gas production method with glass syringes. Treatments were as follows; a control (no additive), monensin, EO of cinnamon, black pepper seed, cumin seed, fennel seed and garlic oil (200 and 400 &micro;L/g DM). Monensin was used as a positive control in the medium at 5 &micro;mol. Data on gas production were fitted using an exponential equation. Results showed that compared to control treatments, monensin had a significant increase on gas production (P&lt;0.05), and cumin seed EO decreased gas production of the feed samples (200 and 400 &micro;L). The effects of treatments on in vitro ruminal fermentation characteristics were tested using an in vitro culture inoculated by mixed rumen microbes. The test treatments were as follows; control (no additive), EO of cinnamon, black pepper seed, cumin seed and fennel seed. Evaluations were made for medium pH, ammonia nitrogen concentration and dry matter disappearance after a 48 h incubation period. To evaluate the effect of EO on in vitro ruminal fungi populations, a sample was taken from the medium after a 120 h incubation period and fungal population was determination by real-time polymerase chain reaction. Compared to the control treatment, cumin and cinnamon additions resulted in a significant decrease (P&lt;0.05) on disappearance of dry matter in the feed samples. In the present study, additions of all tested EO to alfalfa hay treatment showed a significant increase in the final pH of the culture (P&lt;0.05). However, cinnamon addition resulted in a significant decrease in medium ammonia nitrogen concentration for each of the feed samples (P&lt;0.05). Results of the present study also demonstrate that addition all of the tested EO to alfalfa hay had a significantly decrease on in vitro ruminal fungal population (P&lt;0.05). پرونده مقاله