Hossein Gholami; sayed abdoullah hosseini; kamran rezayazdi
Abstract
This experiment carried out to determine the nutritional value of 18 sorghum forage varieties and to introduce superior cultivars using multicriteria decision-making technology. They sow in early June and harvested in mid-November. Random samples were taken from the center of each experimental ...
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This experiment carried out to determine the nutritional value of 18 sorghum forage varieties and to introduce superior cultivars using multicriteria decision-making technology. They sow in early June and harvested in mid-November. Random samples were taken from the center of each experimental plot in a way that ten plants were cut from 10 cm above soil. These samples were cut into 3 to 5 cm pieces, eachcultivar had three samples, in total 54 samples were collected. Yield and nutrient contents such as, crude protein, crude ash, ADF, NDF, water-soluble carbohydrates, starch and lignin measured in the experimental cultivars. The metabolizable energy of sorghum cultivars estimated by gas test method using the amount of gas produced in 24 hours and the amount of crude protein contained in it. Sorghumcultivars ranked based on 11 integrated traits. Among the domestic cultivars, Spidfeed ranked fifth among all varieties, followed by KFS-18 ranked seven and pegah ranked 10th and KFS-2 ranked 12th with moderate quantitative and qualitative performance. Overall, based on the results of the multi-criteria decision-making method, it was found that the top three sorghum cultivars are Siloking, FGCSI12 and PHFS-27, respectively, which are recommended for sorghum forage production and silage for dairy farmers.
Hossein Gholami
Abstract
This study was conducted to determine the metabolizable and net energy for lactation of Iranian sainfoin using chemical composition and gas production data obtained by experiments being carried out in different animal nutrition laboratories mainly Animal Science Research Institute (ASRI) (from 1987 to ...
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This study was conducted to determine the metabolizable and net energy for lactation of Iranian sainfoin using chemical composition and gas production data obtained by experiments being carried out in different animal nutrition laboratories mainly Animal Science Research Institute (ASRI) (from 1987 to 2011) in IRAN. Linear fitted equations as well as logarithmic, inverse, quadratic, cubic, power, S and exponential fitted equations for components such as crude protein, crude fat, crude ash, crude fiber, neutral detergent fiber, acid detergent fiber and NFE were estimated. The obtained equations for crude protein were very significant (P<0.001) with high coefficient of the determination (R2 = 0.731). In the above mentioned equations for estimating metabolizable energy of sainfoin hay, crude protein can be chosen as an independent variable. By selecting crude protein as an independent variable and related equations, Metabolizable energy (ME), net energy for lactation (NEL), Net energy for maintenance (NEm) and net energy for growth (NEg) of Iranian sainfoin were 2.43, 1.29, 1.55 and 0.94 Mcal/Kg DM, respectively. The result showed, with a simple chemical experiment of crude protein in the animal nutrition laboratory can be estimated available energy of Iranian sainfoin and used it in ruminant diets.
Hossein Gholami; Mohammad Reza Kianzad
Abstract
This study was carried out by using two hundred ewes (2-4 years old) as pure breeding (Zel × Zel) and crossbreeding (Chal × Zel). In each treatment, 30 male and 30 female lambs were fattened in a feedlot experiment for three periods; 75, 100 and 125 days. At the end of each period, ...
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This study was carried out by using two hundred ewes (2-4 years old) as pure breeding (Zel × Zel) and crossbreeding (Chal × Zel). In each treatment, 30 male and 30 female lambs were fattened in a feedlot experiment for three periods; 75, 100 and 125 days. At the end of each period, 10 lambs of each treatment were slaughter and carcasses analysis was down. The lean meat percentage and bone percentage in each feedlot periods was not affected by genetic composition and lamb gender (P< 0.05), but carcass fat percent in feedlot periods were significantly (P<0.05) lower in Zel male and crossbred female lambs. Weight of crossbred lambs at the weaning and finishing were 22 and 26 percent heavier than the purebred lambs, respectively. In this study, under industrial breeding conditions, ewes produced 5382 kg live weight lambs in pure breeding system (with 165 percent increase) and 6774 kg live weight lambs, under crossbreeding system (with a 234 percent increase). Consequently, breeding of purebred or crossbred Zel lambs which fattened in an intensive feedlot condition would be economically beneficial to farmers.