Iraqi Journal of Agricultural Sciences

This study was conducted at the poultry farm, the Department of Animal Production, Shatrah Technical Institute , Southern Technical University for the period from 19/2/2021 to 1/4/2021 for (42 days), according to the results Prevous part of the study the best treatment for (WHL) powder was chosen and the replacement was level 6% instead for Wheat, and the best treatment for (WHL) powder treated with yeast (Saccharomyces cerevisiae) at level 12% instead of wheat, and the best treatment for (WHL) powder treated with Iraqi probiotics at level 12% instead of wheat. In two periods of 1-21 days and 22-42 days, the chicks were fed on a starter diets for 1-21 days of age and a finisher diets for 22-42 days of age for the purpose of determining the best rearing period and its impact on the productive performance for broilers. Seven treatments were used with Three replicates per treatment (10 bird’s for replicate) in a floor hen house divided into enclosures of 1.25 x 1 m dimensions. The treatments were as follows: T1:Control without any replacement, T2: replacement (WHL) powder at a level 6% instead of wheat and for the period from 1-21 Day, T3 : replacement (WHL) powder treated with (Sc) yeast at a level 12% instead of wheat for a period of 1-21 days, T4: replacement (WHL) powder treated with Iraqi probiotics at a level 12% instead of wheat and for a period of 1-21 days, T5: replacement (WHL) powder at a level 6% instead of wheat and for the period from 22-42 days, T6: replacement (WHL) powder treated with (Sc) yeast at a level 12% instead of wheat and for the period from 22-42 days and T7: replacement (WHL) powder treated with Iraqi probiotics at a level 12% instead of wheat and for the period of 22-42 days. The results showed an improvement in live body weight, weight gain, feed consumption and food conversion ratio for all addition treatments compared with control also treatments T5,T6 and T7 recorded the best results in productive characteristics.

This study was conducted at the poultry farm , Animal Production Department , Shatrah Technical Institute / Southern Technical University for the period from 13/11/2020 to 25/12/2020 (42 days), to find out the effect of improving the nutritional value for water hyacinth leaves (WHL) fermented with Saccharomyces cerevisiae yeast (Sc) and fermented with Iraqi probiotic at different levels and its effect on the productive performance of broilers chickens. In the experiment, 300 day old unsexed Ross 308 broiler chicks were. The chicks were fed on a starter ration for 1-21 days of age and a finisher ration form 22-42 days of age. The birds were randomly distributed in to 10 treatments, with 3 replicates for each treatment (10 birds for replicates),the treatments were as follows: T1 Control without any replacement, T2 replacement (WHL) powder at a level 6% instead of wheat, T3 Replacement (WHL) powder treated With (Sc) yeast at a level 6% instead of wheat, T4 replacement (WHL) powder treated with probiotics at a level of 6% instead of wheat, T5 replacement (WHL) powder at a level 12% instead of wheat, T6 replacement (WHL) powder treated with (Sc) yeast at a level 12% instead of wheat, T7 replacement (WHL) powder treated with probiotics at a level 12% instead of wheat, T8 replacement (WHL) powder at a level 18% instead of wheat, T9 replacement (WHL) powder treated with (Sc) yeast at a level 18% instead of wheat and T10, replacement (WHL) powder treated with probiotics at a level 18% instead of wheat, The results showed an improvement in live body weight, weight gain, feed consumption and food conversion ratio for all addition treatments compared with control. Treatments T2,T6 and T7 recorded the best results in productive characteristics.

This study was aimed to assess the impact of genetic groups (comprising three distinct lines of Kurdish quails, which are desert, brown, and white), graded levels of L-carnitine and their interaction on the performance of growth traits and blood parameters. For this purpose, the same basic diet was given to 480 Kurdish quail chicks one day old, which was then supplemented for two to seven weeks of age with 0 (control), 150, 350, or 550 mg of L-carnitine per kg of diet. The statistical analysis showed that the lines, L-carnitine supplementation, and their interaction had a significant (p≤0.01) impact on the Kurdish quail's blood parameters, feed intake, feed conversion ratio, body weight, and body weight gain. The desert lines exhibited significantly higher growth performance values in all weeks. Furthermore, supplementation with 350 and 550 mg/kg L-carnitine throughout the experimental period significantly improved these characteristics compared to the control group, with the other experimental treatment (150 mg L-carnitine/kg diet) having the highest values. As well as for the interacted groups, the desert lines with diet of 350 mg/kg L-carnitine had significant influence on body weight, and weight gain. On the other hand, the white lines with a diet of 350 mg/kg L-carnitine showed significantly (P≤0.01) better feed intake and better feed conversion ratio than all other treatments in the same period. It was concluded that L-carnitine supplementation at 350 and 550 mg/kg was sufficient to improve growth characteristics and blood parameters in Kurdish quail lines.

The aim of this study was to investigate the effect of adding glycerol at different levels (T1 = control treatment without glycerol, T2 = 75 ml and T3 = 150 ml glycerol) on daily milk yield, milk components and some blood parameters of Holstein cows during the period of 60 days. Milk yield increased significantly (P≤0.05) at 15th day of the experiment, and highly significant (P≤0.01) at 30th and 60th days of the experiment in T3 group. Percentage of milk protein and lactose increased (P≤0.01) in T2 and T3 groups and the percentage of milk fat in the T3 group decreased at day 60 of the experiment. The blood glucose concentration increased (P≤0.01) in T2 and T3 groups at 30 and 60 days of the experiment. Triglyceride concentration increased (P≤0.01) in the blood of T2 and T3 treated cows at day 60. The concentration of cholesterol, NEFA and BHBA decreased (P≤0.01) in T3 treated cows at day 60 of the experiment. The concentration of phosphorous and magnesium were also affected as a result of glycerol treatment. It can be concluded that the addition of dietary glycerol 150 ml / day enhanced milk yield, protein and lactose percentage, and improved blood parameters by increasing blood glucose and reducing NEFA and BHBA concentrations of Holstein cows.

This study was conducted to identify the genetic diversity of microsatellite markers CSSM66, ETH10 and ILSTS34 using 100 cows of several breeds distributed as follows: 30 local Iraqi cows (equally divided into Restaki, Janoubi and Sharabi) as well as 50 Holstein cows (German) and 20 Brahman bulls after amplification in PCR reaction, 16 alleles of ETH10, CSSM66 and ILSTS34 markers were detected in a sample of studied cattle and they were 7, 6 and 5 alleles, respectively. The total Shannon (I) was 1.5400, and it was found that the average value of Obs_Hom is smaller than the average value of Exp_Het, being 0.2600 and 0.7544, respectively. This indicates the presence of high genetic heterogeneity or diversity among cows. The average values of FIS, FIT and FST and genetic migration Nm -0.6257, -0.0162, 0.3749 and 0.4168, respectively. These results showed through the UPGMA tree a common ancestry between domestic cattle and Brahman.

The study was conducted us to identify the genetic features of the microsatellite markers CSSM66 and ETH10 and ILSTS34 and their relationship to genetic diversity and productive performance this study was carried out using 100 cows of five breeds presented in Iraq ; Restaki (n=10) , Janoubi (n=10) , Sharabi (n=10) , (local), Holstein (n=50) and male Brahman (n=20) (imported).The results showed the presence of a very high diversity and a highly significant difference in a sample of studied cows in the allele distribution ratios for the three markers, the results showed a significant effect (P≤0.05) superiority of the genotype LY within the ETH10 marker in the least number of inseminatons required for fertilization of Restaki cows, namely 1.16 insemination, and the genotype GP and AB within ETH10 and CSSM66 markers, respectively, recorded the highest total average milk yield with a significant value (P≤0.05) for Holstein cows, reached 1.44 . The CC genotype within markers CSSM66 had the highest mean total weight with an average of 502.75 among Brahman bulls. Therefore, microsatellites markers contributed to the mapping of quantitative traits in the studied cows

This study was conducted on 67 local doe goat, aged from 2-5 years old. The overall mean of TMY, DMY and lactation length of 1st and 2nd flocks were (130.541 ± 7.403 kg, 0.716 ± 0.033kg, and 182.432 ± 4.112 day) and (164.043 ± 8.788 kg, 0.832 ± 0.043 kg, 197.027 ± 2.650 day), respectively. The flock, age of doe, doe coat color, month of kidding and type of birth have significant effect on TMY and DMY, doe in 2nd flock production 33.502 and 0.116 kg milk/doe, respectively more than doe in 1st flock. Doe of five years old yielded (181.878 ± 10.171 kg /doe) and (0.892 ± 0.044 kg /doe/day) more milk than young doe. Doe kidding in Januarys were consistently produced high significantly (p≤0.001) more TMY (158.354 ± 7.076 kg /doe) and DMY (0.828 ± 0.033 kg /doe/day) in comparison with other groups. Doe with brown coat color produced significantly (p≤0.05) more TMY (165.205 ± 20.558 kg /doe) and DMY (0.835 ± 0.095 kg /doe/day) in comparison with other coat colors. Doe kidding twin’s kids were significantly (p≤0.05) yielded more TMY and DMY than single kids. The flock and age of doe significantly affected the lactation length, 2nd flock have higher length with 197.027 ± 2.650 day and higher lactation length recorded of doe with 5 years old with 200 ± 3.779 day. BLUP values for TMY of doe ranged from -130.65 to 224.77 kg/doe. The repeatability of DMY, fat%, protein% and lactose% in present study arrived 0.286, 0.319, 0.067 and 0.015 respectively. The MPPA value of TMY in this study ranged from 80.988 to 329.749. These results indicated the good genetic make-up of local goat for milk traits and the selection programs can play major role to increase production ability of local goat.

This study was conducted to investigate the impact of adding ajwain seeds to the rations of the growing Ossimi ram lambs on growth performance, nutrient digestibility, rumen liquor fermentation, and blood biochemical parameters. A total of 15 ram lambs, 5-6 months of age, were randomly allocated to the 3 treatments (5 lambs each). Lambs were fed a basal diet and regarded as a control group (T1), while the second (T2) and third (T3) treatments were fed on a basal diet plus 0.2 and 0.4 % of ajwain seeds respectively. At the end of the trial (150 days), three sheep from each treatment were used for a fourteen-day digestibility trial. Feed intake was similar for all groups. The treated groups exhibited higher (P<0.05) average daily gain and lesser (P<0.05) feed conversion ratio than the T1 group. All nutrients digestibility and nutritive value (TDN and DCP) were significantly higher (P<0.05) in the T2 and T3 groups than in the T1 group. The blood attributes were within the reference values of healthy lambs. Serum cholesterol, triglyceride, LDL, and MDA levels were decreased (P<0.05), whereas, albumin, HDL and TAC concentrations increased in the treated than the control groups. I