Reproductive Performance of Rahmani, Romanov and their Crosses Ewes in Reference with Progesterone Concentration
A.
Deghedy
Animal Production Res. Inst., Agric. Res. Center, Ministry of Agric., Dokki, Egypt
author
A.
El badawy
Animal Production Res. Inst., Agric. Res. Center, Ministry of Agric., Dokki, Egypt
author
M.
El - Maghraby
Animal Production Res. Inst., Agric. Res. Center, Ministry of Agric., Dokki, Egypt
author
SH.
Shamiah
Animal Production Res. Inst., Agric. Res. Center, Ministry of Agric., Dokki, Egypt
author
M.
Abdel-Hafez
Animal Production Res. Inst., Agric. Res. Center, Ministry of Agric., Dokki, Egypt
author
A.
Abuel Ella
Animal Production Res. Inst., Agric. Res. Center, Ministry of Agric., Dokki, Egypt
author
E.
Aboufandoud
Animal Production Res. Inst., Agric. Res. Center, Ministry of Agric., Dokki, Egypt
author
text
article
2017
eng
This study was carried out to evaluate the relation among progesterone (P4) concentration, number and diameter of corpora lutea, with pregnancy in three ewe breeds. Total of 61 ewes (25 Rahmani, 11 Romanov and 25 crossbred, Rahmani x Romanov) were ultrasonographic examined after natural mating up to 21 days to determined number and diameter of corpora lutea. Blood samples were collected from 8 ewes per group (4 pregnant and 4 non-pregnant) prior to ultrasound scanning to assay P4 concentration. Results revealed that, average of CLs diameter and P4 concentration were the highest (P<0.05) in of Romonov (8.04 mm and 4.41 ng/ml), but were insignificantly higher in crossbred (7.48 mm and 3.5 ng/ml) than in Rahmani (5.52 mm and 3.43 ng/ml). Mean number of CL was not affected significantly by ewe breed. Mean number and diameter of CLs and P4 concentration were the higher (P<0.01) in pregnant than in non–pregnant ewes. The interaction between ewe breed and pregnancy status on all traits was not significant. A positive significant correlation was found between each of number and diameter (mm) of CLs and serum P4 concentrations was recorded. Conclusion, results of this study indicated that the differences in progesterone concentration among ewe breeds are in relation with pregnancy status, depending on number and diameter of corpora lutea.
Journal of Animal and Poultry Production
Mansoura University, Faculty of Agriculture
2090-3642
8
v.
6
no.
2017
101
104
https://jappmu.journals.ekb.eg/article_45789_82b180d423a1129f3bbfcb28fade52d2.pdf
dx.doi.org/10.21608/jappmu.2017.45789
Response of Growing Rabbits to Dietary Fish Oil Supplementation
T.
Tag El. Din
Dept . Poultry Prod., Fac. of Agric. ,Damieta University.
author
I.
EL – Wardany
Dept . Poultry Prod., Fac. of Agric. Ain Sham University
author
EL- Sayda
Ouda
Dept . Poultry Prod., Fac. of Agric. ,Damieta University.
author
text
article
2017
eng
This experiment was to evaluate the role of dietary inclusion of fish oil (FO) on productiveperformance and some blood parameters of New Zealand White rabbits (NZW). A total of thirty NZW male rabbits, 5 weeks of age , and mean body weight of 850 g were growing used. They were randomly divided into three treatment groups (G1, G2 andG3), 10 rabbits each in fivereplicates, of two rabbits. The fish oil was added to the basal diet at graded levels of 0.0, 0.75% and 1.5% / kg dietfor (control) G1,group 2 and group 3 respectively. At 13 weeks of age, blood samples were collected from three rabbits per each treatment to determine some plasma constituents .group.The results showed that dietary supplementation with FO had insignnificat effect on body weight,body weight gain, feed intake, and feed conversion ratio. However , LBW of rabbits fed the 1.5% FO – supplemental diet had significantly heavier body weight than the other groups .Plasma total lipids ,triglycerides, cholesterol, LDL , and HDL were significantly affeected dietary. Fish oil supplementation significantly increased HDL and decreased LDL levels .The o.75 % level of dietary fish oil significantly increased plasma globulin level and decreased A/G ratio indicative of improved immune responses of rabbits . It is concluded that, dietary FO supplementation had a significant impact in enhancing immunity without negative effects on performance of rabbits .The 0.75 %FO level is recommended for best results.
Journal of Animal and Poultry Production
Mansoura University, Faculty of Agriculture
2090-3642
8
v.
6
no.
2017
105
108
https://jappmu.journals.ekb.eg/article_45792_c56c98aa066fc6ad70449420ad3a25bb.pdf
dx.doi.org/10.21608/jappmu.2017.45792
Effect of Diets Containing Dried Taro (Colocasia esculanta) Waste and Dried Yeast (Saccharomyces cerevisiae) on Performance of Growing Rabbits
Amany
Khayyal
Animal Production Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza, Egypt.
author
E.
Bakr
Department of Animal Production, Faculty of Environmental Agricultural Sciences, Suez Canal University, El-Arish, North Sinai, Egypt.
author
Y.
Phillip
Animal Production Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza, Egypt.
author
A.
Hussein
Animal Production Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza, Egypt.
author
A.
Khir
Animal Production Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza, Egypt.
author
text
article
2017
eng
A total of hundred and four New Zealand White (NZW) rabbits were chosen after weaned at 6 weeks of age and randomly divided into 8 equal groups (13 rabbits/ group) according to their initial live body weight (804.31±20g), to evaluate the utilization of dried taro waste (TW) without or with dried yeast (DY) in feeding growing rabbits and their response on growth performance, nutrients digestibility, carcass traits, some blood parameters, cecum activity as well as economic efficiency. Rabbits were fed ad-libitum on diets containing 0.0, 7.5, 15, 22.5% TW without supplement for groups G1, G3, G5 and G7, respectively and the other groups (G2, G4, G6 and G8) were fed the same levels of TW, with 0.5% DY. At the end of the experimental period (14 weeks of age), digestibility trials were carried out to determine the digestibility of feed nutrients and the feeding values of the experimental diets. In addition, four rabbits were slaughtered from each group to test the carcass traits, some blood parameters and cecum activity. The experimental diets were fed to growing rabbits for 8 weeks post-weaning period. Results revealed that the TW contained 2479 Kcal digestible energy/Kg, 16.41% crude protein, 14.30% crude fiber, 7.42% ether extract, 16.92% ash, 1.22% calcium 0.27% phosphorus on DM basis, and some anti-nutritional factor such as calcium oxalate (0.56%). Formulation of rabbit diets with different levels of TW (0.0, 7.5, 15 and 22.5%) without or with 0.5% DY showed no significant differences (P>0.05) among the dietary treatments in respect of live body weight and total weight gain at different ages (6-14 weeks). It was also clear that the insignificant highest weight gain was associated with rabbits fed diets containing DY (G2, G4 and G6) during 6-14 weeks of age than those fed the un-supplemented diets. Total feed intake of TW-diets was slightly decreased during the whole experimental period with G3 and G5, but significant decreased with G7 compared to that of control diet (G1). Supplemented DY with rabbit diets tended to improve total feed intake at 6-10 and 6-14 weeks of age comparing with the non-supplemented ones. Feed conversion and performance index didn’t affected significantly by dietary treatments. In comparison with control diet, most nutrient digestibilities of most tested diets did not affected significantly. Almostly carcass traits (empty carcass, edible giblets, non-edible parts and dressing percentage) did not affected significantly by most tested treatments compared with control diet. TW or DY had slightly changes on blood constituents of experimental rabbits. Insignificantly higher concentrations of TVFA´s and ammonia-N were observed in the cecum contents of rabbits fed on the different levels of TW without or with DY compared with the control group. Similarly each of cecum weight and pH of cecum content were not significant changed by all tested rations based on control one. Profitability and economic efficiency were markedly improved with TW-diets without or with DY compared with control diet.In conclusion dried taro waste could be used in feeding of growing rabbits up to 22.5% without or with dried yeast with no adverse effect on productive performance, carcass traits, physiological function and economical efficiency.
Journal of Animal and Poultry Production
Mansoura University, Faculty of Agriculture
2090-3642
8
v.
6
no.
2017
109
117
https://jappmu.journals.ekb.eg/article_45794_f6548cb7e03f42c8d5d74d6c33f5fbdc.pdf
dx.doi.org/10.21608/jappmu.2017.45794
Effect of Dietary Organic Selenium and Manganese Supplementation on Productive Performance of Local Laying Hens Fed Diet Contained Soybean Oil as a Source of Essential Fatty Acids.
Kh.
Sherif
Fac. of Agric., Mansoura Univ., Egypt
author
M.
Rabie
Fac. of Agric., Mansoura Univ., Egypt
author
M.
Beshara
Anim. Prod. Res. Institute, Agric. Res. Center, Minis. of Agric. Dokki, Giza
author
Azza
Fawzy
Anim. Prod. Res. Institute, Agric. Res. Center, Minis. of Agric. Dokki, Giza
author
text
article
2017
eng
A total number of 300 Sinai laying hens and 30 cocks, 27 wks- old were used. The laying hens and cocks were weighed, and randomly divided into ten experimental groups with three replicates for each to investigate effects of layer dietary supplementation different levels of organic manganese (Mn-Met), selenium (Se-Met) and their mixture on productive and reproductive performance, internal egg quality, Mn and Se retention during the laying period from 27 – 43 weeks of age. The layer diets contained 1.5% soybean oil as a source of essential fatty acids and it contained gradually levels of organic Mn (20, 40, and 60 mg organic Mn /kg diet), organic Se (0.1, 0.2 and 0.3 mg organic Se /kg diet) and their mixture (20+0.1, 40+0.2 and 60+0.3 mg /kg diet (organic Mn + organic Se), where the diets premix of treatments 2,3 and 4 without Mn, 5,6 and 7 without Se and 8, 9 and 10 without Mn and Se compared to the control diet which contained mineral Mn and Se. Results showed that hens fed diets supplemented with 40mg organic Mn + 0.2 mg organic Se/ Kg diet, 60 mg organic Mn and 0.2 mg organic Se / Kg diet returned to occupy the first position in egg number as compared to the control diet by about 5.88, 5.49 and 4.66% respectively. The superiority of egg mass produced from hens fed diets supplemented with 0.2mg organic Se, 40mg organic Mn + 0.2mg organic Se and 40mg organic Mn/Kg diet. The best feed conversion resulted from the diet supplemented 0.2 mg organic Se, 40 mg organic Mn+ 0.2mg organic Se /kg diet and 60 mg organic Mn / kg diet. All dietary treatments recorded the lowest values in terms of content fresh yolk of total cholesterol. The diet contained 0.1mg organic Se and 40mg organic Mn /kg diet produced eggs with higher total antioxidant as compared with the control diet. In stored yolks, hens fed diets supplemented with 0.1, 0.2 mg organic selenium and 20mg organic Mn + 0.1mg organic Se / kg diet produced eggs with lower cholesterol concentration content. The fertility % of eggs from hens fed diets supplemented with 0.2 mg organic Se and 40 mg organic Mn / Kg diet increased compared to the control died. The higher value of scientific hatchability % occurred as a result of the diets supplemented with40 mg organic Mn and 40 mg organic Mn+0.2 organic Se /Kg diet / Kg diet than the control diet. All dietary treatments had significant higher selenium retention than control diet. The diet supplemented with 0.2 mg organic Se diet and 60 mg organic Mn /Kg diet resulted in decrease in total serum cholesterol compared to the control diet. The diet with organic Mn and Se together at the medium dose (40+ 0.2 mg / Kg diet) leads to higher value of serum antioxidant activity by about 33 % of control diet. The results indicated that the diet contained 0.2mg organic Se, 60 mg organic Mn and the mixture between 40 mg organic Mn+0.2mg organic Se /kg diet improved egg production performance, profile lipids, antioxidant activity in eggs and blood serum as well as economic efficiency of egg production.
Journal of Animal and Poultry Production
Mansoura University, Faculty of Agriculture
2090-3642
8
v.
6
no.
2017
119
128
https://jappmu.journals.ekb.eg/article_45795_f6d5e2e9c09fea7758b7bb3e280da1b6.pdf
dx.doi.org/10.21608/jappmu.2017.45795
Phenotypic and Genotypic Trends for Some Economic Traits in Egyptian Buffaloes
A.
Khattab
Animal Production Department, Faculty of Agriculture, Tanta university Egypt
author
Amina
Ahmad
Animal Production Department, Faculty of Agriculture, Tanta university Egypt
author
Shymaa
El – Komy
Animal Production Department, Faculty of Agriculture, Tanta university Egypt
author
Set El- Habiab
Awad
Animal production Research Institute , Ministry of Agriculture, Dokki, Cairo, Egypt.
author
text
article
2017
eng
A total of 2763 lactation records of Egyptian buffaloes, sired by 147 bulls, were collected from Mahalla Mousa Farm, Kafer El sheihk Government. Traits studied are milk production (MP), lactation length (LL) and age of heifers at calving (AHC). Effects of period and month of calving, lactation order and heifers at calving were studied as main effects , beside bull, buffaloes within bulls and errors were studied as random effects.. Also, Animal mode was used to estimate genotypic parameter, transmitting ability, phenotypic and genotypic trends for above traits studied . Least squares analysis of variance (Table 2) show a significant effects of year of calving and month of calving and lactation order on MP, LL and AHC. Linear and quadratic regression coefficients of MP and LL on AHC had also a significant effect.Sires and buffaloes within sires had a significant effect on MP, LL and AHC. Estimates of (h2) were 0.28, 0.20 and 0.10, for MP, LL and AHC respectively. Genotypic correlations between MP and each of LL and AHC were 0.76 and -0.36, respectively. Genotypic correlation between MP and AHC was -0.30. Phenotypic correlation between MP and both of LL and AHC were 0.80 and -0.90, respectively and phenotypic correlation between LL and AHC was -0.40. Predicted transmitting ability from buffaloes ranged from -774 to 933 kg for MP from – 60 to 101 d for LL and from – 4 to 8 mo., for AHC. Predicted sire transmitting ability for MP ranged from – 408 to 535 kg, for LL ranged from -27 to 29 d and for AHC ranged from -2 to 5 mo., Expected dam transmitting ability ranged from -388 to 365 kg for MP, from – 30 to 23 d for LL from - 2 to 2 mo., for AHC. Annual phenotypic and genetic trend for milk production calving was positive and significant. While, annual genotypic change for lactation length and age of heifers at calving were negative and significant.
Journal of Animal and Poultry Production
Mansoura University, Faculty of Agriculture
2090-3642
8
v.
6
no.
2017
129
133
https://jappmu.journals.ekb.eg/article_45797_dda4c924870e3096943396be7699803c.pdf
dx.doi.org/10.21608/jappmu.2017.45797
A Comparison Between Sire and Animal Model for Lifetime Production Traits in Egyptian Buffaloes.
Walaa
Abdel–Baray
Department of Animal production, Faculty of Agriculture, Tanta University
author
Shymaa
El- Komy
Department of Animal production, Faculty of Agriculture, Tanta University
author
Kawthar
Mourad
Animal Production Research Center, Ministry of Agriculture, Doki, Cairo, Egypt.
author
A.
Khattab
Department of Animal production, Faculty of Agriculture, Tanta University
author
text
article
2017
eng
A total of 1621 normal lactation records of Egyptian buffaloes, kept at Mehalat Mosa farm, belonging to the Animal production Research Center, Ministry of Agriculture, Doki, Cairo, Egypt, during the time from 1990 to 2010 were used. Data were analyzed by using sire model (SM) and animal model (AM). For sire model, includes the fixed influences of year, month of birth, age at first calving as covariate and sire as a random effects. For animal model, it includes the fixed influences for month, year of birth, random effects of animals and errors on total milk yield (TMY), totals lactation period (TLP), age at disposal (AGDS) and the numbers of lactation complete (NLC). Means were 10552 kg, 1173 d, 125 mo., and 5.97 for TMY, TLP, AGDS and NLC, respectively. Estimates of heritability from sire model were 0.45, 0.18, 0.90 and 0.36 for TMY, TLP, AGDS and NLC, respectively and from AM were 0.27, 0.17, 0.12 and 0.06 for above traits studied, respectively. Estimates of phenotypic correlations among traits studied ranged from 0.55 to 0.73 for SM and for AM 0.40 to 0.80 and genetic correlations among traits studied ranged from 0.19 to 0.96 for SM and from AM ranged from 0.10 to 0.98. Rank correlations among lifetime and longevity traits as estimated from SM were highly significant (P<0.01) and positive except rank correlation among NLC, TMY and TLP and ranged from 0.08 to 0.98 as estimated from SM. Rank correlations of sire transmitting ability among lifetime and longevity traits as estimated from AM were highly significant (P<0.01) and positive and ranged between 0.33 and 0.88.
Journal of Animal and Poultry Production
Mansoura University, Faculty of Agriculture
2090-3642
8
v.
6
no.
2017
135
141
https://jappmu.journals.ekb.eg/article_45798_a87bbc7478156427b7366a66ad030b83.pdf
dx.doi.org/10.21608/jappmu.2017.45798
Effect of Partial or Total Inclusion of Betaine and/or Choline Instead of Added Methionine in Broiler Diets on: 1- Growth Performance and Economic Efficiency.
Kh.
Sherif
Poult. Prod. Dept. Fac. Agric., Mansoura Univ.
author
M.
El- Shinnawy
Animal. Prod. Dept. Fac. Agric., Mansoura Univ.
author
H.
Motawe
Regional Center for Food and Feed, Agric. Res. Center, Cairo-Egypt.
author
M.
Osman
Regional Center for Food and Feed, Agric. Res. Center, Cairo-Egypt.
author
text
article
2017
eng
This investigation aimed to evaluate the effect of partial or total replacement of added DL-methionine (Met) with betaine or choline or both in diets of broilers chicks on growth performance and economic efficiency. A total numbers of 440 day-old straight- run Cobb500 broiler chicks were randomly taken, weighed and divided into eleven treatments (40 birds each). Each treatment contained 4 replicates of 10 birds. A basal diet was formulated as control according to NRC, recommendations for starter (0-12 days, 0.165% added Met.), grower (12-24 days, 0.135% added Met.) and finisher (24-36 days, 0.090% added Met.). Treatment one was fed the control ration while the other ten treatments were fed the control ration after partial or total replacement the added Met. with betaine or choline or both. The results of the present study indicated that replacement of added methionine with betaine and/or choline positively affected final live body weight (LBW) of broiler chicks compared with their control group. The highest LBW was achieved by chicks fed T10 (50% betaine and 50% choline) and T7 (100% betaine) when compared with other dietary treatments while the lowest value was recorded with the control group. The same trend of response was observed in body weight gain (BWG) of chicks fed on diets containing different levels of betaine or choline during the whole experimental period compared with their control counterparts. Slight differences were observed among the different experimental groups of broiler chicks in feed intake FI which seemed erratic and perhaps were not related to the effect of dietary treatments. Replacing added dietary methionine with betaine and/or choline in broiler diets led to superior means of feed conversion ratio (FCR) during the three phases of growth and the whole experimental period to those attained by the control group. During the whole experimental period (0-36 days old), birds fed diets in which betaine completely replaced added methionine achieved the lowest PER compared with their control group and other treatments. Also this level of replacement resulted in significantly (P<0.05) the best EEU value (4.82) as compared to the control group (5.22). Inclusion of 100% betaine instead of added methionine showed significantly (P< 0.05) higher PI value compared with the control group. Birds appeared health and total mortality rates throughout the experimental period were within the normal range among treatments. The lowest cost/kg body weight (11.96 LE) was observed with chicks fed diets completely replaced added methionine, while the highest value in which betaine (12.91 LE) was recorded with the control group. Similar results were observed with economic efficiency. It could be concluded that replacing methionine by betaine, choline or both improved body weight gain, feed conversion and economic efficiency of broiler production.
Journal of Animal and Poultry Production
Mansoura University, Faculty of Agriculture
2090-3642
8
v.
6
no.
2017
143
148
https://jappmu.journals.ekb.eg/article_45799_2006cad4dd8bebad2cb89b86c76f0cf0.pdf
dx.doi.org/10.21608/jappmu.2017.45799