This study aimed to investigate the effects of Marigold flower powder (MFP) and marigold flower extract (MFEx) as feed additives on the performance, blood parameters, antioxidant capacity, immunological parameters, microbial content, digestive enzymes and digestibility in growing Japanese quail. A total number of 350 birds randomly distributed into seven groups, with five replicates of 10 birds each, control diet (control group), the second, third and fourth groups were fed on a basal diet within MFP 0.6%, 0.9% and 1.2% respectively. Fifth, sixth and seventh groups received the basal diet plus MFEx 150, 200 and 250 ppm respectively. Quails fed on a diet supplemented with MFEx 200 ppm had significantly higher lipase levels (p ≤ 0.001) compared to the control and MFP 0.6% without any significant difference with other experimental groups. Moreover, all digestibility coefficients (DC) of nutrients except for nitrogen‐free extract were significantly (p ≤ 0.001) affected by all dietary treatments. Quails fed on the diet supplemented with MFEx 200 ppm significantly (p ≤ 0.001) presented the best body weight, body weight gain, feed conversion ratio and the lowest feed intake over all groups. Total lipid profile, kidney functions and liver functions were significantly affected by both MFP and MFEx diets. The group treated with MFEx 250 ppm had lowest E. coli and Salmonella population and the highest Lactobacilli population number. Antioxidant parameters and immune response (except for lymphocytes) were significantly affected (p ≤ 0.001) by different levels of MFP and MFEx. In conclusion, the addition of MFEx and MFP at 200 ppm followed by 250 ppm and 1.2% MFP, respectively, to the basal diet improved product productive performance, blood parameters, antioxidant capacity, immunological parameters, microbial content and digestibility in growing Japanese quail.
Chemical analyses were performed in the laboratories of the same Department.The experiment was conducted during the period from March to April 2005. The effect of substituting yellow corn by some by-products of medicinal and aromatic plants with or without enzyme supplementation was studied on growing Japanese quail performance. Fourteen dietary treatments were designed to study the effects of substituting yellow corn by some by-products of medicinal and aromatic plants with or without enzyme supplementation. The by-products were parsley, dill and peppermint.Live body weight (LBW) and Live body weight gain (LBWG): Quails fed diet 10 (parsley BP replacing 16% YC + 0.1% KD) had higher LBW at 38 days of age and LBWG during the period from 10 to 38 days of age. Quails fed diet 13 (peppermint BP replacing 16% YC) had lower LBW at 38 days of age and LBWG during the period from 10 to 38 days of age. Quails fed diet 11 (peppermint BP replacing 8% YC) had heavier LBW at 45 days of age and LBWG during the period from 10 to 45 days of age. Quails fed control diet had lower LBW at 45 days of age and LBWG during the period from 10 to 45 days of age.Feed intake (FI): Quails fed diet 2(control + 0.1% KD) had significantly lower FI during the periods from 10 to 38 and 10 to 45 days of age.
Feed conversion (FC), Crude protein conversion (CPC) and Caloric conversion ratio (CCR):Quails fed diet 8 (parsley BP replacing 8% YC + 0.1% KD) had the best FC and CCR values during the period from 10 to 38 days of age, quails fed diet 2 (control + 0.1% KD) had the best CPC value during the same period (10 to 38 days of age). Quails fed diet 2 (control + 0.1% KD) had the best FC, CPC and CCR values during the period from 10 to 45 days of age, followed by those fed diet 14 (peppermint BP replacing16%YC+0.1% KD) during the same period. Quails fed diet 5 (dill BP replacing 16% YC) had the worst FC, CPC and CCR values during the periods from 10 to 38 and 10 to 45 days.Performance index (PI): Quails fed diet 8 (parsley BP replacing 8% YC + 0.1% KD) had significantly higher PI during period from 10 to 38 days of age. Quails fed diet 2
A total number of 570 Bovans hens was used in this experiment. Hens were classified into two equal strains (White and Brown) of 285 hens each and were divided into 3 treatments, each of 95 hens. One experimental corn-soybean meal diets was formulated. The basal diet contained 19.0% CP and 2800 Kcal ME/Kg diet was fed during the laying period. Two types of probiotics were supplemented to the diet (2 kg/ton) to study their effects on productive performance commercial laying hens compared to the control diet (without growth promoters):1-Choong Ang Yeast Culture (CYC-100) is a unique live yeast culture product (saccharomyces cerevisiae 1.510x10 11 CFU/ kg) and 2-More Yeast (MY) is a unique dead yeast culture (saccharomyces cerevisiae). Hens in all treatments were kept under a similar management system.The obtained results were summarized as follows: It can be concluded that Brown Bovans had significantly better feed conversion (FC) and economic of efficiency than White Bovans being 5.60 g feed/ g egg mass and 0.747 vs 7.00g feed/ g egg mass and 0.723. The MY treatment had higher economical efficiency of 0.777 than other the treatments. The White Bovans had significantly higher egg production % with lower egg weight (EW) than the Brown Bovans being 72.81% and 54.66g vs 68.80% and 55.81g, respectively. Hens fed the diets supplemented with CYC-100 and MY had higher egg production%, EW and egg mass (EM) than those fed the control diet. The highest egg production%, EW and EM were shown during the period from 29-32 weeks of age being 90.65%, 60.42 and 4922.05g, respectively. White Bovans had significantly higher haematocrit value (Ht %) and haemoglobin value (g/dl) than the Brown Bovans (25.76% and 9.64g/100ml vs 24.30% and 9.05g/100ml, P≤0.05). Hens fed the MY supplemented diets had lower Ht% and Hb of 24.19% and 8.87g/100ml than the other treatments. Diets supplemented with both CYC-100 and MY\ had lower cholesterol content than those fed the control diet. It can be seen that as birds advanced in age and production, both Ht% and Hb gradually increased. The period from 21-24 weeks of age had the lowest Ht, Hb and cholesterol estimates of 21.55% 8.13g/100ml and 149.05mg/dl.
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