جستجوی مقالات مرتبط با کلیدواژه « blood parameter » در نشریات گروه « علوم دام »

Ziziphora one of aromatic and medicinal plants that have a wide distribution in Iran. This study was to investigate the effects of supplemented different levels of Ziziphora tenuior to diet on digestibility, hematological, serum biochemical indices, fecal bacteria and nematode population of Dalagh ewes.

Twelve matured Dalagh ewes averagely weighting (40 ±0.5 kg) were assigned to a completely randomized design experiment with 3 treatments: 1) basal diet without additive (control), 2) basal diet +25g Z. tenuior, and 3) basal diet +50g Z. tenuior per day for each animal. The whole period of the experiment was carried out in 44 days, consisting of 14 days for the adaptation period. Digestibility of dry matter and organic matter were calculated using Acid Insoluble Ash (AIA) method, fresh feces were taken by rectal sampling three times every day from each ewe.  In the last day of experiment, fecal samples from each animal were taken by latex gloves from the rectum then were transferred to sterile containers. The samples were directly transported on ice to the microbiology laboratory. The microbial population was assessed by microbial culture method and the number of parasite eggs in feces was conducted by corrected McMaster method. Blood samples were collected from each animal after 16 hours' starvation period, before the morning feed, at the end of the experimental period.

Addition of Z. tenuior did not significantly affect the dry matter (DM) and organic matter (OM) digestibility, serum biochemical indices and fecal bacteria. Different levels of Z. tenuior had no significant effects on glucose, cholesterol, Urea, HDL, LDL. But 25 grams Ziziphora treatment had the biggest decline in VlDL and triglyceride (P<0.05). It was found that treatment 50g Z. tenuior significantly increased the percentage of lymphocytes (P=0.007) and reduced the percentage of Neutrophils (P=0.048) compared to other treatments while the differences between other hematological parameters were not significant.

According to the results mentioned, this experiment indicates that supplementation of ewe diet with Z. tenuior could beneficially affect the fecal bacteria and immune status.

Global demand for goat milk and its products has been growing. The decreased pasture quality has led goat producers to use intensive production systems with economical fodder resources. Goat milk contains functional compounds that enhance human immune system and overall health. Goat milk is enriched with functional peptides, conjugated linoleic acid, and healthy oligosaccharides that can immensely benefit human immunity and health. Goats are usually capable in utilizing lower quality forages. In few recent studies, alfalfa hay was compared with different by-products and local feeds with no significant effects found on rumen fermentation and milk production or composition. Murciano-Granadina goats were capable to utilize low quality fiber sources towards milk production.The objective of this study was to determine effects of feeding various forage sources on milk production, nutritional behaviors, and blood parameters of Murciano-Granadina dairy goats in Iran.

  Thirty second-parity Murciano-Granadina goats (190 ± 3 days in milk; 2 ± 0.03 kg/d milk yield) were used in a completely randomized design study with three treatments (10 goats per treatment). Treatments were diets containing 1) wheat straw (WS), 2) alfalfa hay (AH), or 3) corn silage (CS). To enable sound comparisons among forage sources, treatment diets were balanced to be isoenergetic and isonitrogenous. The concentrate portion of the rations was similarly ground for all treatments. Feed and milk (from a.m. and p.m. milking) samples were collected weekly for later analytical measurements. To determine goat behavior time; eating, ruminating, and resting times were observed and recorded by technical individuals on days 30 and 50 of the experiment in two 24-h period. Blood samples were taken at 0800 h on d 1, 30, and 56. The data were analyzed using mixed models of SAS program.

 The dry matter intake (DMI) was significantly affected by treatments (P <0.001). Body weight and its changes were similar among treatments, suggesting that nutrient partitioning towards tissue accretion or depletion was not different among treatments during the study, since goats were in late lactation. However, DMI was 228 g higher for goats received diet containing corn silage than for those received AH (P < 0.05). Decreased DMI for diets with wheat straw and alfalfa hay compared with corn silage could at least partially be related to increased dietary fat and indigestible cell wall in the former diets. Ruminating, standing, and resting times were not different among treatments (P > 0.10). These data would suggest that despite the differences in forage nutritional characteristics, digestibility, and intake, ruminating time was similar among treatments.Goats fed CS had higher milk production than the other two groups (P <0.001). The percentage of milk fat in the alfalfa hay treatment was higher than in the other treatments (p> 0.05). Similar to milk volume, daily yields of milk protein, lactose, and total solids were also higher for corn silage than for other treatments. This could be a result of increased milk volume and unchanged milk contents of protein and lactose for corn silage. Milk fat content was higher (P < 0.01) for AH treatment but milk fat yield tended (P < 0.10) to be greater for CS treatments than for other treatments.Serum concentration of glucose, albumin and non-esterified fatty acids (NEFA) were not significant among experimental treatments. Glucose and NEFA values are usually interpreted as indices for energy status of experimental animals. Similar glucose and NEFE concentrations in blood for the three forage treatments could be evaluated in light of the fact that goats were in mid and late lactation and thus were not in negative energy balance. As a result, they may have not been metabolically sensitive enough to respond to treatments at this stage of lactation. Serum concentrations of total proteins were higher for AH than for other treatments (P < 0.05). Findings  of this study suggest that lactating Murciano-Granadina goats are capable to utilize different forage sources including alfalfa hay, corn silage and wheat straw. However, corn silage leads to higher raw and fat-corrected milk yields, whereas alfalfa hay increases milk fat content. For higher feed efficiency and lower feed cost and where more available, Wheat Straw may be used in Murciano-Granadina goat diets. To improve milk yield and fat content and yield simultaneously, certain combinations of alfalfa hay and corn silage may be required. Determining this will require future experimentation. Future experiments could also investigate forage choice effects on milk fatty acids profile and other functional compounds.

In this study, the effect of two sources of straw (wheat and rice) and two sources of non-protin nitrogen (urea and Nitroza) in full orange fruit silage on the quality of silage, growth performance and some blood parameters of Zell fattening male lambs were investigated. This study was carried out in a completely randomized design with 4 treatments and 6 replications on male lambs with mean age of 5.5 months and average weight of 24±2 kg for 75 days. Experimental treatments included: 1) 86.4 % orange+14.5 % wheat straw and 0.9% Nitrosa 2) 86.4 % orange+14.5 % wheat straw +0.9% urea 3) 86.4 % orange+14.5% rice straw + 0.9% urea 4) 86.4 % orange+14.5% rice straw +0.9% Nitrosa. Results showed that the addition of wheat straw to orange silage significantly increased dry matter, crude ash and NDF and decreased organic matter (P <0.05). The addition of urea significantly increased the amount of crude protein, crude fat and pH of the silage and reduced ADF and NFC (P <0.05). The results of growth performance showed that at the end weight, the highest and lowest daily gain were observed in treatments 1 and 3, respectively (P <0.05). The overall results showed that adding wheat straw with urea improved the chemical quality of silage. The growth performance of experimental lambs in dry matter intake and weight gain had the same results and no significant difference was obtained.