The leptin gene's polymorphism and how it relates to the Awassi sheep's physical characteristics

The study was conducted at the sheep and goat research station, at Al-Shatrah District, Thi-Qar Agriculture Directorate, Thi-Qar Governorate, from 1/11/2021 to 30/6/2022 for one production season. A total of 100 animals were used, consisting of 50 parents and 50 lambs, males and females; the ages of the ewes ranged from 3 to 5 years old. The sheep data used in the experiment were collected from the station records. The genetic part was also completed in the Marshes Research Laboratory at the University of Thi-Qar. The study aimed at the genetic polymorphism of the leptin gene and its relationship to the body dimensions of the Awassi sheep. The nitrogenous base sequence analysis of the leptin gene indicated a size of 260 base pairs, with a change in location 119 in the studied area. The homozygous CC genotype was more significant than the number of animals; the frequency of the C and T alleles was 0.65 and 0.35, respectively. There was no significant effect between the three genetic polymorphisms resulting from the mutation at site 119 of the studied plot on the body dimensions of the newborns as well as at weaning. Keywords: Polymorphism, leptin gene, body dimensions, Awassi sheep.

The impact of a fermented diet including Iraqi probiotics on a few productive characteristics in Chinese ducks

This study was conducted in a private field for duck breeding in Al-Muthanna Governorate from 12/14/2021 to 02/14/2022. A total of 125 one-day-old chicks were reared from Pekingese ducks, with an average weight of 42 g; ducklings were prepared from local markets in Al-Diwaniah Governorate, and chicks were reared at a semi-enclosed hall with dimensions of 25 × 10 m. Chicks were randomly distributed into five treatments; each treatment was three replicates (10 chicks/replicate), placed in 15 Pens, and the area of one pen was 1.5 × 1 m. The experiment treatments were as follows: the control treatment (T1) and other treatments used feed fermentation with Iraqi probiotics Vs. dry feed 25%+75%, 50%+50%, 75%+25% and 100%+0%, for treatments T2, T3, T4 and T5 respectively. The results indicated a significant improvement in the average live body weight, weight gain, feed consumption and feed conversion factor for ducks fed by fermentation with the Iraqi probiotics compared to the control treatment at 4 and 8 weeks of the bird's age. Keywords: feed fermentation, Iraqi probiotics on, productive traits, Chinese ducks

Impact of varying amounts of Moringa oleifera seed powder in the diet on a few aspects of common carp growth L. Cyprinus carpio

The current study was conducted in experimental cages in a mud pond, First Agricultural Research and Experiment Station, Agriculture College, Al-Muthanna University, to determine the effect of different levels of Moringa oleifera seed powder on the diets of common carp. A total of 75 common carp fish with an average weight of 65.08±0.42 g were used; it was randomly distributed to 5 treatments with three replicates (5 fish for each replicate). The fish that were fed on experimental diets was divided into five equal therapies in terms of protein percentages, different in the proportions of adding Moringa seed powder; the rate of seeds added to the treatments was 0, 0.5, 1, 1.5 and 2%, respectively, the fish were fed on the experimental diets at 5% of the live weight, divided into four meals a day. The results showed a significant superiority of T2 and T3 treatments compared with other therapies on growth parameters (final weight, weight gain, daily growth rate, specific and relative), and give the best feed conversion ratio, the highest food conversion and protein efficiency ratio. Indicates that adding Moringa seed powder to diets at rates of 0.5 and 1% led to fish growth promotion and increased utilization of feed intake. Keywords: Moringa oleifera, growth parameters, common carp Cyprinus carpio L.

Effect of adding and in ovo injecting hatching eggs produced with omega-3 on some hatching traits and body weight of Japanese quail

This study was conducted at a private hatchery in Thi-Qar Governorate to determine the effect of adding omega-3 fatty acid to quail's diet with the outcome of ovo injecting the resulting hatching eggs with omega-3 on some hatching traits and body weight of Japanese quail. A total of 540 eggs were used. The experiment treatments were as follows: T1: Negative control (without adding oil); T2: Positive control (adding 0.01% sunflower oil); T3: Feed the parent with 0.01% omega-3 oil; T4: Feed the parent with 0.01% omega-3 oil, and the resulting eggs were in ovo injected with 0.01 ml omega-3; T5: Feed the parent by 0.01% omega-3 oil, and the resultant eggs were in ovo injected with 0.01 ml sunflower; T6: Feed the parent by 0.01% sunflower oil, and the resulting eggs were in ovo injected with 0.01 ml sunflower; T7: Feed the parent by 0.01% sunflower oil, and the resultant eggs were in ovo injected with 0.01 ml omega-3; T8: Feed the parent by free diet, and the resulting eggs were in ovo injected with 0.01 ml omega-3; T9: Feed the parent by free diet, and the resultant eggs were in ovo injected with 0.01 ml sunflower. The results showed a significant improvement in T4 (the treatment whose parents were fed omega-3 and in ovo injected with omega-3 oil) compared to the control treatment on hatching rate and fertility rate of whole eggs, with a significant decrease in the percentage of embryonic mortality and pipped eggs for the hatched chicks. Feeding Japanese quail mothers with omega-3 hatching egg injections led to a substantial increase in the average weekly body weight. Keywords: in ovo injecting, hatching eggs, with omega-3, hatching traits, body weight, Japanese quail.