Growth Performance, Carcass Traits and Economic Efficiency of Barki Lambs Fed Azzawi Date

Mohammady, Mona I.; Khattab, I.M.; Shehata, M. F.; Abdel-Wahed, A. M.; Kewan, K. Z.

doi:10.21608/ejap.2013.94303

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Bodyweight gain (BwtGKg) was obtained by subtracting the initial from the final weights and average daily gain (ADG g/head/day) was determined. Feed intake (g DM/head) was recorded daily, and the feed conversion ratio (FCR Kg DM/Kg gain) was calculated to assess the rams’ performance [ 30 ].…”

Section: Methodsmentioning

confidence: 99%

Immunostimulatory effects of Nannochloropsis oculata supplementation on Barki rams growth performance, antioxidant assay, and immunological status

et al. 2022

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Background Natural feed supplements are gaining popularity in the animal production sector due to their safety and potential immunostimulatory properties, as well as the ban of some antibiotics and their negative residual effects. This study was carried out for 1 month to investigate the effect of Nannochloropsis oculata supplementation on growth performance and cell-mediated immunological status of rams assessed by leukogram assessment, lipid oxidation product malondialdehyde (MDA), total antioxidant capacity (TAC), interleukin assay after lymphocyte transformation test (LTT) including interleukin 6 (IL6), tumor necrosis factor-alpha (TNF-α), interleukin 12 (IL12), and gamma interferon (γ-IF), as well as Comet assay (% of DNA damage, tail length (px), % DNA in tail, tail moment and Olive tail moment). Methods Eighteen Barki rams (26.21 ± 0.64 kg) were divided into 3 equal treatment groups (6 sheep/each), G1: animals served as the control group that was fed the basal diet only, while the other treated groups (G2 and G3 (Nan 1.5% and Nan 3%) were fed the basal diet supplemented with 1.5% and 3% N. oculata (dry matter basis), respectively. Results The obtained results revealed that G3 showed a significant (P < 0.05) improvement in performance (body weight and body weight gain), the highest significant count (P < 0.05) in lymphocytes, and the lowest significant (P < 0.05) levels of neutrophils and neutrophils and lymphocytes ratio (N/L) ratio. Meanwhile, both levels of N. oculata significantly (P < 0.05) decreased MDA and increased TAC than control which seemed to be directly correlated with supplemented dose. There was a significant (P < 0.05) enhancement in the lymphocyte transformation assay produced significant (P < 0.05) high cytokines (IL6, γ-IF, IL12, and TNF-α) and the lowest significant (P <0.05) percent of DNA damage. The conducted principal component analysis estimated the inter-relationship between parameters and revealed that microalgae correlated strongly with cytokine assay and TAC, and negatively with Comet assay parameters; MDA, and neutrophils. Conclusions It can be noted that dietary addition of N. oculata 3% increased sheep's performance while also producing significant-high cytokines. It also enhanced sheep immunology by considerably enhancing lymphocyte transformation ability. The antioxidant activity of Nannochloropsis appears to influence these findings. It was proposed that the Barki rams’ basal diet be supplemented with 3% N. oculata.

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Section: Methodsmentioning

confidence: 99%

Immunostimulatory effects of Nannochloropsis oculata supplementation on Barki rams growth performance, antioxidant assay, and immunological status

et al. 2022

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Evaluation of Cadmium or Lead Exposure with Nannochloropsis oculata Mitigation on Productive Performance, Biochemical, and Oxidative Stress Biomarkers in Barki Rams

Hassan

Mahmoud

Elnabtiti

et al. 2022

Biol Trace Elem Res

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This study was designed to determine the lead or cadmium exposure of Barki rams and the beneficial role of Nannochlorposis oculata (N. oculata) 4% as a feed supplement, as well as its mitigating role against these elements’ impacts concerning performance, biochemical markers of liver enzymes and kidney function, thyroid hormone activity, and oxidative stress markers. Six groups of 36 Barki rams (33.63 ± 1.29 kg) were divided into G1: which served as control; G2: was given 4% dietary N. oculata; G3: was given oral 1 mg/kg cadmium chloride; G4: was given 5 mg/kg/day lead acetate; G5: was given oral 1 mg/kg cadmium chloride and 4% dietary N. oculata, and G6: was given oral 5 mg/kg/day lead acetate and 4% dietary N. oculata; and treatments were continued for 60 days. Cadmium and lead-exposed groups exhibited lower and weaker weight gain as well as feed conversion ratio, respectively, than the control and other groups. Additionally, levels of T3, T4, total proteins, albumin, and glutathione (GSH) were significantly reduced in both G3 and G4 compared to control. However, urea, creatinine, ALT, AST, total cholesterol, triglycerides, protein carbonyl content (PCC), and malondialdehyde (MDA) were significantly increased (P ≤ 0.05) in cadmium and lead-exposed groups. Dietary N. oculata (4%) improves serum proteins, creatinine, urea, T4, and oxidative stress indicators as compared to the control group. Finally, 4% dietary N. oculata greatly enhances the investigated parameters in terms of performance, thyroid hormones, serum biochemical, and antioxidant activity and may assist in reducing the endocrine disrupting effects of Pb and Cd.

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Biological and Economical Merits of Incorporating Azzawi Dates in Rations of Barki Ewes Under Desert Conditions in Egypt

Mohammady

Hammam

Kewan

2014

Egyptian Journal of Animal Production

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This study was conducted to evaluate the effects of feeding non-conventional source of energy Azzawi date (non -edible date) on biological performance of Barki ewes and assess the economic returns from mid pregnancy period up to weaning age. Thirty Barki ewes were used with average initial live body weight of 42.4 ± 3 kg and ranging between 2 -5 years. Ewes were randomly distributed into three equal groups (G1, G2 and G3). Ewes of G1 fed traditional diet formulated of concentrate feed mixture (CFM) free of Azzawi date and served as control group, while ewes of G2, fed CFM with partial replacement (50%) of corn grain. Ewes of G3 fed CFM with totally replacement (100%) of corn grain by Azzawi date. The results showed that, inclusion of Azzawi date in the diet did not affect negatively live body weight changes of ewes and weight of fetus throughout the pregnancy period. Group 3 achieved the highest estimates and harvest more number of weaned lambs (78%) and lowest mortality rate (22 %) but the differences were not significant. The experimental diets had no significant effect on birth weight, weaning weight, and average daily gain. Lambs born of G1 were lighter in birth weight (3.53kg) than G2 and G3 (3.88kg & 3.71kg, respectively), but faster in growth rate (0.145kg/day) and heavier weaning weight (16.72 kg). Relative economic indicators revealed that, G3 had the highest reduction in total feed costs and scored -15.22 %, while G2, was intermediate and scored -7.98% less than the control group (G1). G3 achieved the lowest feed costs to produce one kilogram of weaned lambs, while G1 was the highest (LE 27.38 vs. LE 31.55).It could be concluded that, incorporating Azzawi date with ewes diets from mid pregnancy until weaning age did not enhance ewe or lamb production traits but minimized the feed costs of ewes during the studied experimental period.

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Growth Performance, Carcass Traits and Economic Efficiency of Barki Lambs Fed Azzawi Date

Cited by 3 publications

References 3 publications

Immunostimulatory effects of Nannochloropsis oculata supplementation on Barki rams growth performance, antioxidant assay, and immunological status

Immunostimulatory effects of Nannochloropsis oculata supplementation on Barki rams growth performance, antioxidant assay, and immunological status

Evaluation of Cadmium or Lead Exposure with Nannochloropsis oculata Mitigation on Productive Performance, Biochemical, and Oxidative Stress Biomarkers in Barki Rams

Biological and Economical Merits of Incorporating Azzawi Dates in Rations of Barki Ewes Under Desert Conditions in Egypt

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