فهرس المقالات soybean meal

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  1 - The Effect of Partial Replacing Solvent Soybean Meal with Poultry Blood Meal on Performance and Metabolic Status of Fresh Holstein Dairy Cows
  I. Rahnama T. Amirabadi Farahani S. Karimi-Dehkordi
  The objective of this study was to investigate the effect of replacing solvent soybean meal (SSBM) with poultryblood meal (PBM) on performance, metabolic status, and apparent digestibility of nutrients in Holstein fresh cows. Twenty-four Holstein cows (body weight (BW)& أکثر

  The objective of this study was to investigate the effect of replacing solvent soybean meal (SSBM) with poultryblood meal (PBM) on performance, metabolic status, and apparent digestibility of nutrients in Holstein fresh cows. Twenty-four Holstein cows (body weight (BW)±SD; 669.5±42.59 kg) were blocked by body condition score (BCS) at calving and previous lactation milk yield and randomly assigned to 1 of 3 experimental diets from calving until 21 days in milk (DIM): diet without PBM (0PBM), replacing 2.5% DMSSBM with PBM (2.5PBM), and replacing 5% DMSSBM with PBM (5PBM). There were no significant effects (P>0.10) of treatments on dry matter intake (DMI), milk yield, and milk composition, but cows fed the 2.5PBM diets had significantlyhigher milk urea nitrogen (MUN) levels than cows fed the 0PBM and 5PBM diets (P<0.01). Cows fed the 5PBM diet had significantly higher serum globulin, non-esterified fatty acids (NEFA), and β-hydroxybutyrate (BHB) and lower serum cholesterol concentrations than cows fed the 0PBM and 2.5PBM diets (P<0.05). Blood urea nitrogen (BUN) concentration in cows fed the 2.5PBM diet was significantly(P=0.01) higher than cows fed the 0PBM and 5PBM diets. The apparent digestibility of dry matter in the 5PBM diet was significantly(P=0.03) lower compared to the 0PBM diet. However, there was no significant difference between the 5PBM and 2.5PBM diets. Overall,the lack of significant differences in performance, apparent digestibility of nutrients and serum metabolites between the 0PBM and 2.5PBM shows that the SSBM could replace up to 2.5% of DM with the PBM. However, levels higher than 2.5% of DM are not recommended due to low palatability and negative effects on the metabolic status of cows. تفاصيل المقالة
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  2 - Effects of Supplementing Xylose‐Treated Soybean Meal or Untreated Corn Gluten Meal to Lactating Dairy Cows
  M. Jahani-Moghadam E. Mahjoubi H. Amanlou S. Mohammadi
  This experiment was performed to investigate whether feeding xylose-treated soybean meal (XSBM) or corn gluten meal (CGM) is economically better under field conditions. Ninety-four multiparous early lactating Holstein cows (55±5 days in milk and 2.82±0.41 أکثر

  This experiment was performed to investigate whether feeding xylose-treated soybean meal (XSBM) or corn gluten meal (CGM) is economically better under field conditions. Ninety-four multiparous early lactating Holstein cows (55±5 days in milk and 2.82±0.41 body condition score) were used in a completely randomized design. Cows were randomly assigned to one of two treatments: XSBM or CGM as the main rumen undegradable protein source in the diet. Dry matter intake (DMI), milk yield and fat corrected milk (FCM) were not affected by treatments. A tendency was detected for higher FCM: DMI (1.57 vs. 1.47) and income:cost (1.97 vs. 1.83) in CGM treatment. Milk urea nitrogen was greater (15.89 vs. 15.16 mg/dL) in the XSBM group. Plasma glucose, non-esterified fatty acid, beta-hydroxy butyric acid and albumin were not different between treatments. The results showed that under field conditions and feed ingredients used in this experiment, using CGM was economically beneficial during early lactation, which is in contrast with traditional beliefs. تفاصيل المقالة
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  3 - Effect of Feeding of Various Types of Soybean Meal and Differently Processed Barley Grain on Performance of High Producing Lactating Holstein Dairy Cows
  ا. خطیبی شهری م. دانش مسگران د. زحمتکش
  Twenty-four lactating Holstein dairy cows were used in a completely randomized design to investigate the effect of soybean meal (SM) and xylose protected soybean meal (XSM) in combination with ground (GB) or steam flaked (FB) barley on dry matter intake, milk production أکثر

  Twenty-four lactating Holstein dairy cows were used in a completely randomized design to investigate the effect of soybean meal (SM) and xylose protected soybean meal (XSM) in combination with ground (GB) or steam flaked (FB) barley on dry matter intake, milk production, rumen fermentation and blood responses. The experimental period lasted for 30 days. The diets consisted of the provision of 19.85% corn silage, 12.02% alfalfa hay, 0.72% wheat straw and 67.41% concentrate that averaged 17% crude proteins (DM basis) were offered two times daily. Dry matter intake (DMI) (P=0.051) and milk yield (P<0.0001) decreased by XSM in diets with GB or FB (P<0.05). The animals fed diets containing XSM had lower fat corrected milk (FCM 3.5%) and energy corrected milk (ECM) than diets containing SM (P<0.05). The milk fat and solids not fat percentage in XSM were significantly higher than SM (P<0.05) but milk protein percentage was lower (P<0.05). A comparison of GB versus FB and SM versus XSM diets indicated that the milk protein yield was higher for diets containing FB (P<0.05) and containing SM (P<0.001). Blood metabolites were significantly different between treatments (P<0.05). The diets containing XSM had lower levels of non-esterified fatty acids and higher levels blood urine nitrogen than those containing SM (P<0.05). The Acetate, propionate, valerate and butyrate concentrations differed significantly between the diets (P<0.05). In according to the results of our experiment, soybean meal in combination with ground barely may alter the performance of Holstein dairy cows. تفاصيل المقالة
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  4 - Effect of Guanidino Acetic Acid Supplementation in Soybean Meal and Canola Meal-Based Diets on Broiler Performance, Carcass Characteristics, Liver Enzymes, and Intestinal Morphology
  F.S.  Mirsalehi B. Dastar O.  Ashayerizadeh R.  Mirshekar
  A total of 288 Ross 308 broiler chickens (mixed sex) were used to investigate the effect of supplemental guanidino acetic acid (GAA) to soybean meal (SBM) and canola meal (CM) based diets on growth per-formance, carcass characteristics, liver enzymes, and morphometric i أکثر

  A total of 288 Ross 308 broiler chickens (mixed sex) were used to investigate the effect of supplemental guanidino acetic acid (GAA) to soybean meal (SBM) and canola meal (CM) based diets on growth per-formance, carcass characteristics, liver enzymes, and morphometric indexes. Birds were randomly assigned to four treatments in a completely randomized design with a 2 × 2 factorial arrangement consisting of 2 types of oil seed meal (SBM and CM) and 2 levels of GAA (0 and 0.6 g/kg) with six replicates in each. The results indicated that birds fed with CM diet had significantly lower feed intake and body weight gain and a worse feed conversion ratio than those fed with SBM diet (P<0.05). Supplementing GAA to the CM diet but not to the SBM diet led to increased feed intake so that the value was similar to those birds receiving the SBM diet as a statistical point (P<0.05), while the improvement of body weight gain was not achieved completely. Carcass, breast, and thigh yields were statistically lower in birds fed the CM diet than those fed the SBM diet, while the abdominal fat and liver weight were higher (P<0.05). Neither type of oil seed meal nor GAA significantly affected the liver enzymes and nitric oxide concentrations, as well as gut mor-phometric indexes (P<0.05). It can be concluded that supplementing 0.6 g/kg GAA to the CM-based diet to some extent improves the growth performance of broiler chickens, and more content may be needed for complete improvement. تفاصيل المقالة