Author : Matty, Hiyam N.


Effect of supplementation of rumen protected methionine and lysine on some physiological aspects of fattening calves

Hiyam N. Maty

Iraqi Journal of Veterinary Sciences, In Press
DOI: 10.33899/ijvs.2020.126580.1344

This study was carried out during the period from February-April 2019 at a private breeding field. A total of 82 imported calves for fattening 9-12 month of age. These calves were divided randomly into 3 groups and treated for 90 days as follows: G1 (27 calves) supplied with basal diet only and considered as the control group, Calves of G2 (27 calves) of were supplied with basal diet complemented with RPM in complete feed using 15 g/animal/day, while G3 (28 calves) was supplied with basal diet complemented with RPL with 10g/animal/day. The results showed a significant increase in growth hormone value in the G2 in comparison with G1 and G3 at 90-day post-treatment. While the mean values of body weight were (310.8±12.97) and (334.3±15.41) in G2 at 60 and 90 days respectively with significance deference in compare with G1and G3 (p≤ 0.05). The significant increase in red blood cells count (RBCs) showed in G2, while the White Blood Cells (WBCs) increased in G1 when compare between groups. In addition, the results showed a significant increase (p< 0.05) in cholesterol and triglycerides values in G2 in compare with G1 and G3. While no significant changes in total protein values revealed between groups. The results of this study confirmed that supplementation of RPM has the potential to improve body weight in fattening calves with the enhancement of the immune status of animals and enhancement of oxygen flow to the tissues by increasing of RBCs counts especially with RPM, but lasser effects with RPL.

The relationship between HSP70 and level of leptin and luteinizing hormones in female rats exposed to chronic and acute heat stress

Hiyam N. Matty; Ashwaq A. Hassan

Iraqi Journal of Veterinary Sciences, 2020, Volume 34, Issue 1, Pages 37-43
DOI: 10.33899/ijvs.2019.125565.1082

The current search experiments designed to study the effect of chronic and acute heat stress on the relationship between HSP70, leptin and luteinizing hormones level in female rats. 45 female pups were used in the age of weaning, were randomly divided into three equal groups. 1st group was a control group, 2nd group exposed to chronic heat stress at 38 ºC for 1hour a day since the age of weaning until onset of puberty and the 3rd group exposed to acute heat stress at 38 ºC for 4 hours per day for 5 consecutive days from 35 day age of rat and each group above were secondary divided into 3 age groups consisted of pre-puberty, at puberty and post-puberty. Results of study showed female rats exposed to chronic and acute stress led to significant increase in the level of luteinizing hormone at onset of the puberty. The result showed correlation coefficient between the level of HSP70 and leptin hormone significantly in the females acute stressed group at onset of puberty, as well as female exposed to chronic heat stress led to significant correlation coefficient between HSP70 and leptin hormone at post puberty. The result revealed significant correlation coefficient between HSP70 and luteinizing hormone in female control group at onset of puberty. It concluded from this study there is relationship between HSP70 and leptin hormone at onset puberty during acute heat stress and same relationship at post puberty during chronic heat stress.

Effect of supplementation of encapsulated organic acid and essential oil Gallant+® on some physiological parameters of Japanese quails

Hiyam N. Matty; Ashwaq A. Hassan

Iraqi Journal of Veterinary Sciences, 2020, Volume 34, Issue 1, Pages 181-188
DOI: 10.33899/ijvs.2019.125732.1142

The current study was conducted to investigate the effects of dietary supplements of organic acid and essential oil Gallant on the growth hormone, glutathione, performance of growth, some biochemical parameters and intestinal histomorphology in quails. Japanese quails one-day-old (n=120) were distributed randomly into four groups included 10 / 3 replicates for each group. The G1, was control group that was fed on a basal diet. Quails of G2, G3, and G4 were fed on a supplemented diet Gallant 300, 600 and 900g/ton,respectively. Administration of Gallant 600 g/ton and 900g/ton to quail led to significant decrease in triglyceride while supplementation with 600 g/ton caused decrease in cholesterol. On the other hand, 300 g/ton caused an increase in final body weight and total weight through the duration of the experiment, as well as a decrease in total feed consumption and the best feed conversion ratio in all supplementation with 300 g/ton caused a significant growth hormone elevation. All feed additives didn't affect the level of glutathione. The addition of Gallant additive groups. Interestingly, the addition of different doses of Gallant to the diet increased villus length and width, crypt depth, villus / crypt ratio, percentage of goblet cell, apparent surface area, and intestinal epithelium thickness compared to the control group. It was concluded that dietary supplementation with different doses of Gallant improved growth hormone, growth performance and intestinal histomorphology in Japanese quails, and dietary supplementation with organic acid and essential oil as alternatives to the growth promoter of antibiotics.

Effect of heat stress on sex hormones, sex organ weight and relationships with sexual puberty in male rats

hiyam matty; Ashwaq Hassan

Iraqi Journal of Veterinary Sciences, 2019, Volume 33, Issue 2, Pages 63-71
DOI: 10.33899/ijvs.2019.163089

This study was designed to investigate the effect of chronic and acute heat stress on sex hormones level and their relationship to sexual puberty in male rats. Used 45 male pups in the age of weaning, were randomly divided for 3 groups each group included 15 pups of each sex. 1st group was a control group, 2nd group exposed to chronic heat stress at 38Cº for 1hour a day since the age of weaning until onset of puberty and the 3rd group exposed to acute heat stress at 38Cº for 4 hours per day for 5 consecutive days from 35 day age of rat and each group above were secondarily divided into 3 age groups consisted of pre-puberty, at puberty and post-puberty. Results of study showed that male rats exposed chronic heat stress led to a significant increase in body weight, tail of epididymis, prostate gland weights, at onset of puberty compared with control group, with a significant decrease in body weight, testis, head and tail of epididymis, prostate and seminal vesicle weights at post-puberty compared with control group. as well as a significant decrease in the level of luteinizing hormone at post-puberty compared with acute heat stress group. Males exposed to acute heat stress cause a significant decrease in the head and tail of the epididymis, prostate, and seminal vesicle weights and significant increase in the concentration each of testosterone and luteinizing hormones at post-puberty compared with the control group. Acute exposure to heat stress caused early sexual puberty in males to show from the early appearance of first sperm compared with the control group, while the exposure to chronic heat stress led to delay of puberty associated with a delay in the appearance of first sperm compared with the control group. It concluded from this study that male rat's exposure to heat stress affects differently on sex hormone. Acute heat stress led to reach early sexual puberty and reflected the impact on puberty when chronic exposure to heat stress.