Two hundred Oreochromis niloticus fingerlings were used to explain the effects of supplementing a... more Two hundred Oreochromis niloticus fingerlings were used to explain the effects of supplementing a basal diet with sodium butyrate (SB) and / or protexin on the growth performance, some blood parameters, body composition, and immune response. Oreochromis niloticus fingerlings were allotted into 4 experimental groups. The control group (1) was fed the basal diet (BD), while group (2) was fed BD with SB at level 3 g/ 10 kg diet, group 3 fed BD plus protexin (probiotic) 1 g/ 10 kg diet and group 4 was fed BD with SB and protexin at 3 and 1 g/ 10 kg diet. Results obtained showed that the highest growth (final weight, total weight gain and SGR) of Nile tilapia were obtained with feeding diet containing SB plus probiotics followed by SB (group 2) supplemented diets (P<0.05) when compared with those of control group. The best FCR values observed in SB plus Protexin-supplemented diets. The results revealed that, probiotic nonsignificantly increased blood glucose and intestinal glucose absorption while sodium butyrate significantly increased blood glucose level, intestinal glucose absorption and both probiotic and SB supplementation have no any adverse effects on liver functions reflected in normal blood protein pattern and enzymatic activity. We concluded from this study that using of SB and SB plus probiotic is preferred for good performance in tilapia fish production because the beneficial effect of butyric acid on the proliferation of the intestinal epithelium.
The date palm (Phoenix dactylifera) seeds were utilized in some traditional medical remedies and ... more The date palm (Phoenix dactylifera) seeds were utilized in some traditional medical remedies and have been investigated for their possible health benefits. This proposed study wanted to assess the effect of date palm seeds (DPS) dietary supplementation in comparison to mannan-oligosaccharides (Bio-Mos®) and β-glucan over antioxidant and immunity events that have effect on growth and carcass performances of broilers. An aggregate of 180, one-day-old, chicks were raised in the wire-floored cages and allotted into control, Bio-Mos (0.1% Bio-Mos), β-glucan (0.1% β-glucan), DPS2 (2% date crushed seeds), DPS4 (4% date crushed seeds), and DPS6 (6% date crushed seeds) groups. Broilers in DPS2 and DPS4 groups showed significant variations (P < 0.05) in relative growth rate (RGR), feed conversion ratio (FCR), and efficiency of energy utilization in comparison to control group. Moreover, all DPS fed groups showed significant increases (P < 0.05) in serum reduced glutathione (GSH) value...
Aim: This study aimed to investigate the effects of protein reduction with supplementation of lim... more Aim: This study aimed to investigate the effects of protein reduction with supplementation of limiting amino acids (AA, tryptophan, threonine, and valine) on growth performance, blood biochemical, immunity parameters, and carcass traits in broiler chickens. Materials and Methods: Three hundred one-day-old broiler chicks were randomly allotted into three treatment groups, with five replicates per treatment and 20 broiler chickens per replicate. The three experimental diets were formulated with different dietary crude protein (CP) %, (control [CON] and CON with 1% [CP-1%] or 2% [CP-2%] less CP units) during the starter, grower, and finisher phases. The CP of the experimental diets were 22, 21, and 20% for the starting period (day 1-14); 20, 19, and 18% CP for the growing period (day 15-28); and 18, 17, and 16% CP for the finishing period (day 29-35) in CON, CP-1%, and CP-2%, respectively. The low-CP diets (CP-1% and CP-2%) were supplemented with combined AA, threonine+tryptophan+valin...
This study quantifies the effects of extruded linseed and soybean (ELS) dietary supplementation o... more This study quantifies the effects of extruded linseed and soybean (ELS) dietary supplementation on milk yield, composition, and fatty acid profiles, as well as first-service conception rate in Holstein dairy cows. Seventy-eight open Holstein dairy cows were divided into two groups: (1) a control, which received a basal diet; and (2) a test group, which received a basal diet supplemented with the ELS (650 g/kg of extruded linseed and 150 g/kg of extruded soybean) at a rate of 100 g/kg. In the ELS group, milk yield per day and solid not fat (SNF) yield increased by 3.26% and 0.88%, respectively, in relation to the control. Percentage milk fat decreased significantly by 1.4% in the ELS group when compared with the control. The ELS supplement resulted in a decrease in saturated fatty acids (SFAs) and an increase in monounsaturated (MUFAs) and polyunsaturated fatty acids (PUFAs) in milk. In conclusion, the supplementation of dairy cow feed with 100 g/kg of ELS increases milk yield and mi...
Dendritic cells (DCs) are the most powerful antigen presenting cells (APCs) that have a critical ... more Dendritic cells (DCs) are the most powerful antigen presenting cells (APCs) that have a critical role in bridging innate and adaptive immune responses in vertebrates. Dendritic cells have been characterized morphologically and functionally in the teleost fish models such as rainbow trout, salmonids, medaka, and zebrafish. The presence of DCs with remarkable similarities to human Langerhans cells (LCs) has been described in the spleen and anterior kidney of salmonids and rainbow trout. However, there is no evidence of the presence of DCs and their role in channel catfish immunity. In this study, we assessed DC-like cells in the immunocompetent tissues of channel catfish by immunohistochemistry (IHC), flow cytometry and transmission electron microscopy (TEM). We identified Langerin/CD207(+) (L/CD207(+)) cells in the channel catfish anterior kidney, spleen and gill by IHC. Moreover, we described the cells that resembled mammal LC DCs containing Birbeck-like (BL) granules in channel catfish spleen, anterior and posterior kidneys and gill by TEM. Our data suggest that cells with DC-like morphology in the immune related organs of catfish may share morphological and functional properties with previously reported DCs in teleost fish and mammals. More detailed knowledge of the phenotype and the function of catfish DCs will not only help gain insight into the evolution of the vertebrate adaptive immune system but will also provide valuable information for development and optimization of immunotherapies and vaccination protocols for aquaculture use.
Experiment was conducted using 500 ducks of day-old (300 Muscovy and 200 Moulard) Sexing was done... more Experiment was conducted using 500 ducks of day-old (300 Muscovy and 200 Moulard) Sexing was done for ducks at the first day of age, then the experiment was completed on males only (180 Muscovy, 120 Moulard), where it was brought up in accordance with the principles of the French care for birds research and rearing of water fowls for fattening purposes until 12 weeks of age. At this age birds were divided within each breed according to feeding regime (forced feeding and ad libitum feeding group), and addition of L carnitine by 1000 mg \ kg of feed (L carnitine and non L carnitine group) making eight groups until the end of the study (at 14 weeks). The results of the experiment revealed that, forced feeding has a significant increase in body weight and absolute or relative weight gain (5954.33 g, 1421.03 g and 23.51%, respectively) than ad libitum feeding (4506.75 g, 411.05 g and 8.94%; respectively). Under the regime of force-feeding Moulard ducks had significantly increase in absol...
The aim of this study was to evaluate the effect of using graded levels of enzyme Serratiopeptida... more The aim of this study was to evaluate the effect of using graded levels of enzyme Serratiopeptidase, treatment on growth performance, immune response and some blood parameters of broiler chickens. One hundred twenty 1-day-old broiler chicks were randomly assigned to 4 treatment groups; each group included 3 replicates of 10 birds. Birds were treated as the following group (1) birds were non infected and non treated used as control group. Group (2) birds were only infected with E. coli and Mycoplasma gallisepticum (MG) at 14th day of age. While birds of group (3) were infected with E. coli and Mycoplasma gallisepticum (MG) at 14th day of age and treated with Serrapeptase in drinking water at a dose of 2 g/liter for the first 3 days of each week. Group (4) birds were infected with E. coli and Mycoplasma gallisepticum (MG) at 14th day of age and were treated with Serrapeptase in drinking water at a dose of 1 g / liter for the first 3 days of each week. The results showed significant im...
Two hundred Oreochromis niloticus fingerlings
were used to explain the effects of supplementing a... more Two hundred Oreochromis niloticus fingerlings were used to explain the effects of supplementing a basal diet with sodium butyrate (SB) and / or protexin on the growth performance and immune response. Oreochromis niloticus fingerlings were allotted into 4 experimental groups. The control group (1) was fed the basal diet (BD), while group (2) was fed BD with SB at level 3 g/ 10 kg diet, group 3 fed BD plus protexin (probiotic) 1 g/ 10 kg diet and group 4 was fed BD with SB and protexin at 3 and 1 g/ 10 kg diet. Results obtained showed that the highest growth (final weight, total weight gain and SGR) of Nile tilapia were obtained with feeding diet containing SB plus probiotics followed by SB (group 2) supplemented diets (P<0.05) when compared with those of control group. The results revealed that, sodium butyrate significantly increased blood glucose level, intestinal glucose absorption and both probiotic and SB supplementation have no any adverse effects on liver functions reflected in normal blood protein pattern and enzymatic activity. We concluded from this study that using of SB and SB plus probiotic is preferred for good performance in tilapia fish production because the beneficial effect of butyric acid on the proliferation of the intestinal epithelium.
Two hundred Oreochromis niloticus fingerlings were used to explain the effects of supplementing a... more Two hundred Oreochromis niloticus fingerlings were used to explain the effects of supplementing a basal diet with sodium butyrate (SB) and / or protexin on the growth performance, some blood parameters, body composition, and immune response. Oreochromis niloticus fingerlings were allotted into 4 experimental groups. The control group (1) was fed the basal diet (BD), while group (2) was fed BD with SB at level 3 g/ 10 kg diet, group 3 fed BD plus protexin (probiotic) 1 g/ 10 kg diet and group 4 was fed BD with SB and protexin at 3 and 1 g/ 10 kg diet. Results obtained showed that the highest growth (final weight, total weight gain and SGR) of Nile tilapia were obtained with feeding diet containing SB plus probiotics followed by SB (group 2) supplemented diets (P<0.05) when compared with those of control group. The best FCR values observed in SB plus Protexin-supplemented diets. The results revealed that, probiotic nonsignificantly increased blood glucose and intestinal glucose absorption while sodium butyrate significantly increased blood glucose level, intestinal glucose absorption and both probiotic and SB supplementation have no any adverse effects on liver functions reflected in normal blood protein pattern and enzymatic activity. We concluded from this study that using of SB and SB plus probiotic is preferred for good performance in tilapia fish production because the beneficial effect of butyric acid on the proliferation of the intestinal epithelium.
The date palm (Phoenix dactylifera) seeds were utilized in some traditional medical remedies and ... more The date palm (Phoenix dactylifera) seeds were utilized in some traditional medical remedies and have been investigated for their possible health benefits. This proposed study wanted to assess the effect of date palm seeds (DPS) dietary supplementation in comparison to mannan-oligosaccharides (Bio-Mos®) and β-glucan over antioxidant and immunity events that have effect on growth and carcass performances of broilers. An aggregate of 180, one-day-old, chicks were raised in the wire-floored cages and allotted into control, Bio-Mos (0.1% Bio-Mos), β-glucan (0.1% β-glucan), DPS2 (2% date crushed seeds), DPS4 (4% date crushed seeds), and DPS6 (6% date crushed seeds) groups. Broilers in DPS2 and DPS4 groups showed significant variations (P < 0.05) in relative growth rate (RGR), feed conversion ratio (FCR), and efficiency of energy utilization in comparison to control group. Moreover, all DPS fed groups showed significant increases (P < 0.05) in serum reduced glutathione (GSH) value...
Aim: This study aimed to investigate the effects of protein reduction with supplementation of lim... more Aim: This study aimed to investigate the effects of protein reduction with supplementation of limiting amino acids (AA, tryptophan, threonine, and valine) on growth performance, blood biochemical, immunity parameters, and carcass traits in broiler chickens. Materials and Methods: Three hundred one-day-old broiler chicks were randomly allotted into three treatment groups, with five replicates per treatment and 20 broiler chickens per replicate. The three experimental diets were formulated with different dietary crude protein (CP) %, (control [CON] and CON with 1% [CP-1%] or 2% [CP-2%] less CP units) during the starter, grower, and finisher phases. The CP of the experimental diets were 22, 21, and 20% for the starting period (day 1-14); 20, 19, and 18% CP for the growing period (day 15-28); and 18, 17, and 16% CP for the finishing period (day 29-35) in CON, CP-1%, and CP-2%, respectively. The low-CP diets (CP-1% and CP-2%) were supplemented with combined AA, threonine+tryptophan+valin...
This study quantifies the effects of extruded linseed and soybean (ELS) dietary supplementation o... more This study quantifies the effects of extruded linseed and soybean (ELS) dietary supplementation on milk yield, composition, and fatty acid profiles, as well as first-service conception rate in Holstein dairy cows. Seventy-eight open Holstein dairy cows were divided into two groups: (1) a control, which received a basal diet; and (2) a test group, which received a basal diet supplemented with the ELS (650 g/kg of extruded linseed and 150 g/kg of extruded soybean) at a rate of 100 g/kg. In the ELS group, milk yield per day and solid not fat (SNF) yield increased by 3.26% and 0.88%, respectively, in relation to the control. Percentage milk fat decreased significantly by 1.4% in the ELS group when compared with the control. The ELS supplement resulted in a decrease in saturated fatty acids (SFAs) and an increase in monounsaturated (MUFAs) and polyunsaturated fatty acids (PUFAs) in milk. In conclusion, the supplementation of dairy cow feed with 100 g/kg of ELS increases milk yield and mi...
Dendritic cells (DCs) are the most powerful antigen presenting cells (APCs) that have a critical ... more Dendritic cells (DCs) are the most powerful antigen presenting cells (APCs) that have a critical role in bridging innate and adaptive immune responses in vertebrates. Dendritic cells have been characterized morphologically and functionally in the teleost fish models such as rainbow trout, salmonids, medaka, and zebrafish. The presence of DCs with remarkable similarities to human Langerhans cells (LCs) has been described in the spleen and anterior kidney of salmonids and rainbow trout. However, there is no evidence of the presence of DCs and their role in channel catfish immunity. In this study, we assessed DC-like cells in the immunocompetent tissues of channel catfish by immunohistochemistry (IHC), flow cytometry and transmission electron microscopy (TEM). We identified Langerin/CD207(+) (L/CD207(+)) cells in the channel catfish anterior kidney, spleen and gill by IHC. Moreover, we described the cells that resembled mammal LC DCs containing Birbeck-like (BL) granules in channel catfish spleen, anterior and posterior kidneys and gill by TEM. Our data suggest that cells with DC-like morphology in the immune related organs of catfish may share morphological and functional properties with previously reported DCs in teleost fish and mammals. More detailed knowledge of the phenotype and the function of catfish DCs will not only help gain insight into the evolution of the vertebrate adaptive immune system but will also provide valuable information for development and optimization of immunotherapies and vaccination protocols for aquaculture use.
Experiment was conducted using 500 ducks of day-old (300 Muscovy and 200 Moulard) Sexing was done... more Experiment was conducted using 500 ducks of day-old (300 Muscovy and 200 Moulard) Sexing was done for ducks at the first day of age, then the experiment was completed on males only (180 Muscovy, 120 Moulard), where it was brought up in accordance with the principles of the French care for birds research and rearing of water fowls for fattening purposes until 12 weeks of age. At this age birds were divided within each breed according to feeding regime (forced feeding and ad libitum feeding group), and addition of L carnitine by 1000 mg \ kg of feed (L carnitine and non L carnitine group) making eight groups until the end of the study (at 14 weeks). The results of the experiment revealed that, forced feeding has a significant increase in body weight and absolute or relative weight gain (5954.33 g, 1421.03 g and 23.51%, respectively) than ad libitum feeding (4506.75 g, 411.05 g and 8.94%; respectively). Under the regime of force-feeding Moulard ducks had significantly increase in absol...
The aim of this study was to evaluate the effect of using graded levels of enzyme Serratiopeptida... more The aim of this study was to evaluate the effect of using graded levels of enzyme Serratiopeptidase, treatment on growth performance, immune response and some blood parameters of broiler chickens. One hundred twenty 1-day-old broiler chicks were randomly assigned to 4 treatment groups; each group included 3 replicates of 10 birds. Birds were treated as the following group (1) birds were non infected and non treated used as control group. Group (2) birds were only infected with E. coli and Mycoplasma gallisepticum (MG) at 14th day of age. While birds of group (3) were infected with E. coli and Mycoplasma gallisepticum (MG) at 14th day of age and treated with Serrapeptase in drinking water at a dose of 2 g/liter for the first 3 days of each week. Group (4) birds were infected with E. coli and Mycoplasma gallisepticum (MG) at 14th day of age and were treated with Serrapeptase in drinking water at a dose of 1 g / liter for the first 3 days of each week. The results showed significant im...
Two hundred Oreochromis niloticus fingerlings
were used to explain the effects of supplementing a... more Two hundred Oreochromis niloticus fingerlings were used to explain the effects of supplementing a basal diet with sodium butyrate (SB) and / or protexin on the growth performance and immune response. Oreochromis niloticus fingerlings were allotted into 4 experimental groups. The control group (1) was fed the basal diet (BD), while group (2) was fed BD with SB at level 3 g/ 10 kg diet, group 3 fed BD plus protexin (probiotic) 1 g/ 10 kg diet and group 4 was fed BD with SB and protexin at 3 and 1 g/ 10 kg diet. Results obtained showed that the highest growth (final weight, total weight gain and SGR) of Nile tilapia were obtained with feeding diet containing SB plus probiotics followed by SB (group 2) supplemented diets (P<0.05) when compared with those of control group. The results revealed that, sodium butyrate significantly increased blood glucose level, intestinal glucose absorption and both probiotic and SB supplementation have no any adverse effects on liver functions reflected in normal blood protein pattern and enzymatic activity. We concluded from this study that using of SB and SB plus probiotic is preferred for good performance in tilapia fish production because the beneficial effect of butyric acid on the proliferation of the intestinal epithelium.
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were used to explain the effects of supplementing a basal diet
with sodium butyrate (SB) and / or protexin on the growth
performance and immune response. Oreochromis niloticus
fingerlings were allotted into 4 experimental groups. The
control group (1) was fed the basal diet (BD), while group (2)
was fed BD with SB at level 3 g/ 10 kg diet, group 3 fed BD
plus protexin (probiotic) 1 g/ 10 kg diet and group 4 was fed
BD with SB and protexin at 3 and 1 g/ 10 kg diet. Results
obtained showed that the highest growth (final weight, total
weight gain and SGR) of Nile tilapia were obtained with
feeding diet containing SB plus probiotics followed by SB
(group 2) supplemented diets (P<0.05) when compared with
those of control group. The results revealed that, sodium
butyrate significantly increased blood glucose level, intestinal
glucose absorption and both probiotic and SB
supplementation have no any adverse effects on liver
functions reflected in normal blood protein pattern and
enzymatic activity. We concluded from this study that using
of SB and SB plus probiotic is preferred for good
performance in tilapia fish production because the beneficial
effect of butyric acid on the proliferation of the intestinal
epithelium.
were used to explain the effects of supplementing a basal diet
with sodium butyrate (SB) and / or protexin on the growth
performance and immune response. Oreochromis niloticus
fingerlings were allotted into 4 experimental groups. The
control group (1) was fed the basal diet (BD), while group (2)
was fed BD with SB at level 3 g/ 10 kg diet, group 3 fed BD
plus protexin (probiotic) 1 g/ 10 kg diet and group 4 was fed
BD with SB and protexin at 3 and 1 g/ 10 kg diet. Results
obtained showed that the highest growth (final weight, total
weight gain and SGR) of Nile tilapia were obtained with
feeding diet containing SB plus probiotics followed by SB
(group 2) supplemented diets (P<0.05) when compared with
those of control group. The results revealed that, sodium
butyrate significantly increased blood glucose level, intestinal
glucose absorption and both probiotic and SB
supplementation have no any adverse effects on liver
functions reflected in normal blood protein pattern and
enzymatic activity. We concluded from this study that using
of SB and SB plus probiotic is preferred for good
performance in tilapia fish production because the beneficial
effect of butyric acid on the proliferation of the intestinal
epithelium.