جستجوی مقالات مرتبط با کلیدواژه « تفاله چغندر قند » در نشریات گروه « علوم دام »

The aim of this study was to survey the effect of different dietary fiber source and thereonine levels on growth response, nutrients digestibility and some digesta characteristics of broiler chickens. A total of 180 day-old male Ross 308 chicks were used  in a completely randomized design with a factorial arrangement of 2×3 with 4 replicates of 6 birds each for a period of 24 days. The diets consisted of two fiber sources (pea hull and sugar beet pulp) with 5 percent and three levels of threonine (90, 100 1nd 110 percent of recommended level). According to the results, a significant interaction was found between fiber source and threonine level on feed intake (P<0.05), where the chickens on sugar beet pulp containing diet with deficient threonine consumed lower feed than those on similar diet containing pea hull. There were no significant interactions between fiber source and threonine level on birds’ weight gain and feed conversion ratio. Lower weight gain and higher feed conversion ratio were observed by sugar beet pulp than pea hull (P<0.05). Digestibility of dry matter, organic matter and crude fat, as well as apparent metabolizable energy was decreased by inclusion of sugar beet pulp in the diet (P<0.05). Deficiency of threonine in the diet decreased the digestibility of organic matter (P<0.05). The use of sugar beet pulp decreased pH value of gizzard and cecal digesta, and increased the viscosity of jejunal and ileal digesta in comparison with pea hull (P<0.05). Relative weight of gizzard was increased by pea hull compared with sugar beet pulp (P<0.05). In conclusion, compared with pea hull, sugar beet pulp by increasing digesta viscosity decreased nutrients digestibility and broiler performance, and except for feed intake, non-remarkable interaction was illustrated between fiber source and threonine level.

This research was conducted in order to evaluate the chemical composition and gas production potential of tomato pomace ensiled with sugar beet pulp (5 and 10 percent of tomato pulp weight) and bacterial inoculation (lactobacillus plantarum, 1 mg per kg of fresh forage) and its effect on performance of fattening lambs. Fattening trial was performed using 25 Moghani male lambs (29.164±3.78 kg) for 70 days. Lambs were randomly divided into 5 groups and each group received one of the treatments of control, diet without tomato pomace silage (treatment 1), diet containing tomato pomace silage ensiled with 5 percent sugar beet pulp (treatment 2), diet containing tomato pomace silage ensiled with 10 percent sugar beet pulp (treatment 3), diet containing tomato pomace silage ensiled with 5 percent sugar beet pulp and bacterial inoculation (treatment 4) and diet containing tomato pomace silage ensiled with 10 percent sugar beet pulp and bacterial inoculation (treatment 5). The amount of gas production potential, organic matter digestibility, metabolizable energy and short chain fatty acids was higher in tomato pomace silage ensiled with 10 percent sugar beet pulp and bacterial inoculation than control. Feed intake and feed conversion ratio were significantly higher in control than other treatments. Using tomato pomace ensiled with sugar beet pulp decreased feed cost and the for 1 kg gain followed by increased daily profit. Totally, the use of tomato pomace ensiled with 10 percent sugar beet pulp is suggested in fattening lamb diet.

The aim of this experiment was to study the effects of two levels of barley silage particle sizes and two levels of non-forage fiber on feed intake, nutrients digestibility, rumen parameters and feeding behaviors in sheep. Whole-plant barley was harvested at 28% moisture in 8 and 16 mm theoretical chop lengths to prepare short and long silages. Four male sheep with the weight of 46±7 kg were used and experimental diets were: 1) coarse barley silage diet without beet pulp, 2) coarse barley silage diet with 20% beet pulp, 3) fine barley silage diet without beet pulp and 4) fine barley silage diet with 20% percent beet pulp. The NDF intake was affected by beet pulp levels (P=0.05) and the highest NDF intake was in sheep fed with fine barley silage diet with 20% beet pulp (P

This study examined the effect of replacing dietary beet pulp with (BP) with barley in the diet of lactating cows on energy balance, feed intake, digestibility and feeding behavior during the transition period. 24 multi-parity Holstein cows, within 28 d relative to parturition up to day 24 of lactation were tested. Cows were assigned randomly to three dietary treatments containing before and after calving, respectively, were as follows: 1) Control (100% barley), 2) 75% barley +25% BP, and 3) 50% barley + 50% BP. During the pre and postpartum period, daily feed intake and energy intake was highest in 25% BP treatment (P < 0.0001). Dry matter intake as percentage of BW was highest in 50 and 25% beet pulp (P < 0.0001) before and after calving, respectively. Apparent digestibility of nutrients were not significantly different between treatments before and after calving. In postpartum, ruminal pH was lowest in cows fed control diets (P > 0.05). Before calving, cows sorted in favor of large particles (>19.0 mm) (P < 0.05) and against of short particles (>1.18 mm) (P < 0.01) when fed diets without BP (Control). Our results indicate that replacing 25% barley with BP in diets of transition cows improved performance and rumen health.

In this experiment the effect of adding different kinds of non-fiber carbohydrates (sucrose, starch, or equal mixture of them) on the amount of produced gas and fermentation characteristics of some feedstuffs were studied. Gas production was recorded for non-supplemented and supplemented (70 mg/g DM) pure cellulose, alfalfa hay and sugar beet pulp. The feedstuffs that were used in in vitro experiment includes: alfalfa hay, wheat bran and unmolassed sugar beet pulp. Non-supplemented or NFC supplemented (70 mg/g DM) samples incubated for 2, 4, 8, 16, 24, 48, 72 and 96 h at 39°C. The results of gas production study showed that (except for 2 h), supplementation of all kinds of non-fiber carbohydrates increased the amount of produced gas significantly (P<0.05). Sucrose supplementation increased the gas production rate of alfalfa hay significantly (P<0.05). In the case of sugar beet pulp, the adding of starch decreased the gas production rate significantly (P<0.05). Also, when the alfalfa hay or sugar beet pulp were used as a basal forage, adding of sucrose, starch or sucrose+ starch increased gas production from fermentable fraction significantly (P<0.05). The source of NFC used in the medium containing alfalfa hay caused a significant decrease in DM disappearance (P<0.01). Fractional rate constant of dry matter disappearance of unmolassed sugar beet pulp and wheat bran was significantly decreased by supplemental non-fiber carbohydrate, except when sucrose was added to wheat bran (P<0.01). The indigestible fraction of dry matter of alfalfa hay was significantly increased when it was supplemented with non-fiber carbohydrate (P<0.05).

This experiment was conducted to determine the AME، AMEn، TME and TMEn of beet pulp fed to male ostriches at their 90 d of age. Different levels of beet pulp (0، 15، 30 and 40%) were fed through replacements in the basal diet. For a determination of AME and AMEn using marker method، beet pulp was replaced in the basal diet at 40%. A number of 16 vs. 8 ostrich chicks were employed in each of the total collection vs. marker methods، respectively. A completely randomized design of 4 replicates was adopted. AME and AMEn were determined via chromic oxide marker and via total excreta collection methods. The AME and AMEn for beet pulp were recorded as 3199±238، 2902±95، 3125±214 and 2798±86 kcal/kg (at 40 % of replacement) as assessed through chromic oxide marker and total excrete collection، methods respectively. Assessment of TME and TMEn of beet pulp as based upon different levels of feedstuff were recorded 3215 and 3134 kcal/kg respectively. The results finally indicated that use of the ME data assessed via adult leghorn cockerel (in formulating the starter diet for ostrich) is not applicable، and values of ME in ration formulation regarding ostrich are to be determined

Twenty four multiparous Holstein cows in their early stage of lactation with a mean of 59±20 DIM and a mean of 615±40.5 Kg of BW were employed in a complete randomized block design to evaluate the effects of different levels of sugar beet pulp in a partial replacement for alfalfa, the only source of forage in their previous diet (treat 1, 0% beet pulp and 35% alfalfa, treat 2, 6% beet pulp and 28% alfalfa, and treat 3, 12%beet pulp and 22% alfalfa) on milk yield and composition, dry matter intake, chewing activity, rumen and fecal pH, blood metabolites and digestibility of nutrients. The experiments were based on the new effective fiber hypothesis. Diets were formulated to contain 19.3% crude protein and 32.5% neutral detergent fiber.Cows were divided in three equal groups, each group receiving one of the diets in the form of TMR. There was not any treatment effect observed on DMI, milk yield and composition, and on fat corrected milk. Time of ruminating activities were significantly different among treatments (p<0.05).Chewing activity per kilogram of DMI, and forage NDF intake also were of significant differences(p<0.05). Rumen pH was of significant difference among treatments (p<0.05). Experimental diets did not show any significant effects on fecal pH, BW and BCS during the whole experimental period. Blood metabolites and digestibility of nutrients did not also differ among treatments.