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Articles by H. Kioumarsi
Total Records ( 6 ) for H. Kioumarsi
  H. Kioumarsi , K. Jafari Khorshidi , M. Zahedifar , A.R. Seidavi , S.Z. Mirhosseini and M.R. Taherzadeh
  In this study, two levels of Metabolizable Energy (ME) (2.3 and 2.5 Mcal kg-1 DM) and three levels of Crude Protein (CP) (12, 14 and 16%) and their interactions were studied to identify the optimum levels of dietary energy and protein for lambs of the Taleshi breed. The growth performance variables measured included Average Daily Gain (ADG), final weight, Daily Dry Matter Intake (DDMI, kg day-1) and Feed Conversion Ratio (FCR) whilst other commercially important factors were assessed during specific periods. The urea dilution method was used for predicting the body composition of live lambs. At the end of the experiment, all animals were slaughtered, the carcasses were cut and the chemical composition of the area around the 9th, 10th and 11th rib was measured. The study comprised a completely randomized design with a 2x3 factorial arrangement with four replications per diet. The results showed that the energy and protein levels had a significant effect (p<0.05) on growth. The diet with 2.5 Mcal ME kg-1 and 14% CP was associated with the best final weight, ADG, FCR, feed cost kg-1 gain, un-variable profit kg-1 live weight, un-variable profit/total gain, carcass weight, shoulder weight, thigh weight and ribeye area (REA). A high dietary energy level helps to produce more ME and fermentable products for paunch microorganisms resulting in an increase in the synthesis of microbial protein and therefore the amount of protein available to the animal. Increasing the dietary protein level causes a change in the process of fermentation in the paunch whilst increasing fatty acid production and the ratio of propionate to fatty acids. These changes in the paunch improve the lamb`s energy balance allowing more nitrogen to be stored and increasing the body weight.
  H. Kioumarsi , K. Jafari Khorshidi , M. Zahedifar , A.R. Seidavi , Z.S. Yahaya , W.A. Rahman and S.Z. Mirhosseini
  This study estimated the relationship between Urea Space (US) and carcass attributes in lambs to derive coefficients for these relationships and functional equations for components of carcass quality and quantity. Twenty-four male Taleshi lambs with an average age of 8 months were used. Lamb live weight was determined using the urea dilution method and two or three days before slaughter, the urea dilution procedure was again used to estimate the chemical composition of the carcass. Subsequently, plasma urea nitrogen was determined and the percentage of urea space to lamb live weight was calculated. After slaughter, the carcasses were butchered and the parts measured. The results showed that the average amount of urea injected was 20.09 cm2 and the Blood Urea Nitrogen (BUN) averaged 17.16 and 27.72 mg before and after injection respectively. The average percentage of US to lamb live weight was 18.78%. Correlation coefficients between live weight, empty body weight, hot carcass weight and the weight of different parts of the carcass were high and statistically significant (p < 0.01). The urea space was significantly related to the percentage of protein and ash in the region of the 9th, 10th and 11th ribs (p < 0.05). Using this rib area and US, the development of functional equations between live weight and empty body weight for different parts of the carcass showed that the urea dilution test is a useful tool for predicting the chemical composition of Taleshi lamb carcasses.
  H. Kioumarsi , Z.S. Yahaya , W.A. Rahman and P. Chandrawathani
  This research was conducted in order to investigate the effects of mineral feed blocks along with the use of medicated blocks on growth, control of gastro-intestinal nematode infection and subsequently commercial productivity of Boer goats. In Malaysia, the gastro-intestinal nematode is a common problem in grazing animals, particularly in sheep and goats. This parasitic infection can damage the intestinal epithelium and cause leakage into the gastrointestinal tract of ruminants. These parasites can also cause a high mortality rate and production loss. Molasses, urea and other components are used for producing molasses/urea feeds (blocks, pastes or licks). These preparations are a suitable way of preparing degradable proteins and fermentable energy to ruminant animals as they help to increase the protein supply to the ruminant animals. Furthermore, medicated feed-supplement blocks have been used in an effort to deliver anthelmintic medication. There has been a vast amount of research by scientists to control gastrointestinal nematode infections and to improve the nutrition in goats; however, to date, the data has been inconclusive. This research was carried out to examine a new strategy that can improve performance and productivity of raising Boer goats in Malaysia. The results revealed that using the block has been quite successful and commercially recommendable in this area.
  H. Kioumarsi , Z.S. Yahaya and A.W. Rahman
  Inadequate nutrition and the gastro-intestinal nematode are amongst the commonest problems associated with grazing goats. The aim of this study was to assess the effects on blood metabolites by introducing molasses/mineral feed blocks in addition to the use of medicated blocks, to the diet of grazing goats in Malaysia. Twenty-four male Boer goats with an average age of age average of 7-8 months were used. Goats were divided into four groups: (1) a control group; (2) an experimental group fed with a ratio of molasses/mineral feed blocks (UMB); (3) an experimental group fed with a ratio of medicated blocks (MUMB) and (4) an experimental group fed with a ratio of UMB+MUMB. At the end of the experiment, the blood was taken and analyzed to measure pathological and biochemical parameters. All the blood analysis was conducted at the Veterinary Research Institute (VRI), Ipoh, Malaysia. However, results shows that a combination of molasses/mineral feed blocks and medicated blocks has significant effects (p<0.05) on blood factors includes calcium, creatinine, urea nitrogen and Packed Cell Volume (PCV) and has no negative effects on body function. The results for PCV (%) shows that goats fed with the ratio contain UMB+MUMB have highest percentages which are 94.90±14.70 and 27.25±2.50, respectively. The goats fed with MUMB have highest amount of calcium in their blood which is 3.70±0.37. The highest amount of urea nitrogen is 5.48±2.15a which belongs to the goats fed with UMB. According to the results, it can be concluded that the molasses were uses in the ratios of the goats had positive effects on body function. Thus, the use of urea molasses mineral blocks and medicated urea molasses mineral blocks is recommended.
  K.J. Khorshidi , A. Karimnia , S. Gharaveisi and H. Kioumarsi
  This research was conducted in order to investigate the effects of supplemental fat and monensin on the level of Dry Matter Intake (DMI), Average Daily Gain (ADG), final weight, Feed Conversion Ratio (FCR), blood glucose level, Blood Urea Nitrogen (BUN), calcium, phosphor, triglyceride, cholesterol and crude protein of the Zel lambs; as well as commercial effects of monensin and supplemental fat on the lambs fattening. Most of the time, ordinary food does not suffice the animals needs. Thus, using high-energy materials like fats are important in programming the diets. Moreover, adding some materials to the animal diets could increase the animal efficiency and the products quality. Hormones, antibiotics, ionophores are amongst the most important additives affecting income in the lamb fattening industry. Monensin is the first ionophore component proven to be effective in increasing efficiency of ruminant animals. Twenty-four male Zel lambs were used with an age average of 3-4 months and an initial live weight of 21.94 ± 0.642 kg. A period of eleven days was considered as the adaptation time and the experiment was carried on during three 21-day phases (totally 63 days). The variables for this study were supplemental fat on two levels of 0 and 4% and monensin on tree levels of 0, 20 and 40 mg kg-1 on adrymatterbasis. There were four repetitions for each treatment. The results of this research reveal that different levels of fat and monensin do not have significant effect on DMI, ADG, FCR and level of glucose. The food treatment had significant effect on final weight, calcium level, BUN, phosphor, triglyceride, cholesterol and CP (p<0.05). Also, they affect commercial productivity.
  K. Jafari Khorshidi , S. Abedi Chemazkoti , H. Kioumarsi and Z. Shariman Yahya
  This research was conducted in order to investigate rumen degradability of some factors includes; Dray Matter (DM), Organic Matter (OM), Crude Protein (CP), Acid Detergent Fiber (ADF) in three different plant protein supplements includes; soybean, canola and cottonseed meal. The experiment was carried out using in three castrated and fistulated male Zel sheep. Each feedstuff was weighed into duplicate nylon bags and incubated in each of the three rumen fistulated sheep for 0, 2, 4, 8, 16, 24 and 48 h. Results revealed that effective degradability of DM of soybean, canola and cottonseed meal were 55.8, 73.8 and 48.5%, respectively. Effective degradabilities of the CP in feedstuffs were 55.8, 62 and 48.3% for the respective feedstuffs. Effective degradabilities of the OM were 55.7, 56.4 and 47.4%, respectively. Results also showed that effective degradabilities of the ADF were 55, 56.4 and 37.6, respectively. According to the results the researchers concluded that canola and soybean were more degradable in the rumen of the sheep while cottonseed meal were less degradable and, hence resulted in higher rumen undegradable protein.
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