ORIGINAL_ARTICLE
INFLUENCE OF LIVE YEAST FEED ADDITIVES ON PRODUCTIVE PERFORMANCE OF GROWING RAHMANY LAMBS.
This study was carried out to evaluate the effects of adding two levels of Rumi live yeast (RLY), which is a commercial probiotic containing yeast on productive performance of Rahmany lambs. Twenty-one Rahmany lambs after weaning at three months of age with an average live body weight of 19.33±0.2 Kg were assigned to three groups according to live body weight (7 lambs each). They were randomly assigned to the three experimental diets. The control group was fed 35% corn silage and 65% concentrate feed mixture on DM basis, without Rumi live yeast addition (R1, control). The other two groups were fed the same control ration along with 3 and 5g RLY/ head/day (R2 and R3, respectively). Addition of RLY significantly (P<0.05) increased average daily gain, all nutrients digestibility, digestibility of cell wall constituents (NDF, ADF, cellulose, hemicellulose) and improved feeding values (TDN and DCP%) and feed conversion. Blood constituents were generally normal in all experimental groups, however, blood plasma total protein, albumin and globulin were significantly (P<0.05) higher for animals fed 3 or 5gm RLY additives rations. Feed conversion efficiency was significantly (P<0.05) improved for lambs fed rations contained 3 or 5g RLY and the effect on daily gain was more pronounced with increasing the levels of RLY compared with the control ration. Results of growth performance showed that there were improvements with respect to total body gain and average daily gain in groups R2 and R3. Also, the best feed and relative economic efficiency were achieved by group fed 5g/h/d yeast followed by group fed 3 g/h/d yeast and the lowest was recorded with control ration. It was concluded that adding 3 or 5g of RLY to rations of growing Rahmany lambs improved their performance, digestibility, average daily gain and feed conversion and the best results were achieved with 5g/h/d supplementation level of RLY.
https://jappmu.journals.ekb.eg/article_71335_06179a5f07b491ef2d7e066cb96f0878.pdf
2013-05-01
233
247
10.21608/jappmu.2013.71335
Rahmany lambs
yeast
digestibility coefficients
weight gain
feed intake
feed conversion
A.
Mehrez
1
Dept. of Anim. Prod., Fac. of Agric., Mansoura Univ., El-Mansoura, Egypt.
AUTHOR
A.
Gabr
2
Dept. of Anim. Prod., Fac. of Agric., Mansoura Univ., El-Mansoura, Egypt.
AUTHOR
A.
Mahrous
3
Anim. Prod. Res. Inst., Agric. Res. Center, Dokki, Giza, Egypt.
AUTHOR
O.
Zelaky
4
Anim. Prod. Res. Inst., Agric. Res. Center, Dokki, Giza, Egypt.
AUTHOR
Amal
Fayed
5
Anim. Prod. Res. Inst., Agric. Res. Center, Dokki, Giza, Egypt.
AUTHOR
ORIGINAL_ARTICLE
GROWTH PERFORMANCE OF FATTENING RABBITS AS AFFECTED BY STOCKING DENSITY AND ADDED DIETARY ORGANIC ACIDS
An experiment of 3×2 factorial arrangement of treatments was undertaken to investigate the influence of stocking density and dietary supplementation with organic acids on growth performance, carcass characteristics, and some blood parameters of fattening rabbits. A total of 54, 7-week-old New Zealand White × California rabbits were randomly divided into 6 experimental groups, of three replicates of 2, 3 or 4 rabbits each. Two experimental pelleted diets (a basal diet and a 0.4% Salkil-supplemented diet; Salkil is a mixture of formic and propionic acids.) were formulated and used from 7 to 13 weeks of age. The rabbits were individually weighed, kept in battery cages at three stocking densities (8.6, 12.9 and 17.2 rabbits/m2), fed their respective experimental diets and managed similarly up to 13 weeks of age. Criteria of response were the performance of rabbits for growth, feed intake and feed conversion, mortality rate, economic efficiency of feeding, and some carcass traits. Some blood plasma parameters (levels of glucose, total protein, albumin, triglycerides and cholesterol as well as activity of the transaminases: alanine aminotransferase and aspartate aminotransferase) were also determined. The results obtained could be summarized as follows: No deaths of rabbits occurred during the course of this study. Regardless of the effect of dietary supplemental organic acids, growth performance of rabbits was not significantly affected by stocking density during the whole experimental period, whereas means of daily feed intake, daily weight gain and performance index of rabbits insignificantly decreased when stocking density reached 17.2 rabbits/m2. Neither carcass traits nor blood parameters of rabbits, measured herein, was affected by stocking density. Irrespective of the effect of stocking density, added dietary organic acids did not significantly affect growth performance, carcass traits or blood parameters of the experimental rabbits. No significant interaction effects of stocking density and added dietary organic acids were detected for all criteria examined in the present study. Taking the performance of rabbits and economic aspect into account, the results revealed that the maximum rate of cage density (17.2 rabbits/m2) had no adverse effects under the condition of the present experiment during the spring season. The dietary inclusion of Salkil at a level of 0.4% was an extravagance; because it had no positive effects on either growth performance or economic efficiency of rabbit production, under the conditions of the present study.
https://jappmu.journals.ekb.eg/article_71337_6528b8cd7c35b1fe9b52a44fd4b5b9fb.pdf
2013-05-01
249
262
10.21608/jappmu.2013.71337
stocking density
added dietary organic acids
performance
carcass traits
blood parameters
fattening rabbits
T.
Dorra
1
Poultry Production Dept., Fac. of Agric., Mans. University
AUTHOR
F.
Ismail
2
Poultry Production Dept., Fac. of Agric., Mans. University
AUTHOR
Kh.
El. Sherif
3
Poultry Production Dept., Fac. of Agric., Mans. University
AUTHOR
Marwa
Rabie
4
Poultry Production Dept., Fac. of Agric., Mans. University
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF USING CORN DISTILLER'S DRIED GRAINS WITH SOLUBLES IN BROILER DIETS WITHOUT OR WITH ADDING GALZYM ON GROWTH PERFORMANCE AND SOME PHYSIOLOGICAL PARAMETERS
The present study was carried out to investigate the effect of using 10 % and 20 % corn distiller's dried grains with solubles (CDDGS) as partial replacement for yellow corn and soybean meal with or without adding 0.05 % Galzym powder on productive performance, some blood plasma parameters and the immune response of broiler chicks. A total number of 240 day-old, unsexed broiler chicks were randomly assigned to six treatments 40 chicks each. The first group was fed basal (starter and grower-finisher) diets without supplements and considered as control (T1) group, the second group was fed as T1 plus 0.05 % Galzym (T2), the third group was fed 10 % CDDGS (T3), the 4th group was fed as T3 plus Galzym addition, the 5th group was fed 20 % CDDGS (T5), the 6th group was fed as T5 plus Galzym (T6).
The obtained results showed that final live body weight values increased by CDDGS replacement. The highest final live body weight, total feed intake and total body weight gain values were recorded by the birds fed 20 % CDDGS level with Galzym as compared to other experimental treatments. Also, the lowest total feed conversion values were recorded for the birds fed 20% CDDGS plus Galzym as compared to other experimental birds. The results showed that there were significant increase in the experimental treatments in plasma total protein and total triglycerides values compared with the control treatment. Moreover, there were insignificant increases in total cholesterol values compared with the control group. Also, there were significant decreases in plasma inorganic phosphorus values as compared to the control treatment. The specific immunity against avian influenza disease virus (AIDV) titer was significantly increased when using 10 % CDDGS with Galzym supplementation in the diets after vaccination as compared to other experimental samples. Also, there were insignificant differences in the Newcastle disease virus (NDV) titer after vaccination among all the experimental treatments.
It is concluded that using CDDGS up to 20% in broiler diets as partial replacement for yellow corn and soybean meal with or without Galzym supplementation improved growth performance of broiler chicks and enhanced the specific immunity against avian influenza disease virus titer, with no adverse effects on their physiological blood parameters.
https://jappmu.journals.ekb.eg/article_71334_a7309ca6d84963f299730462ddbdd1a8.pdf
2013-05-01
263
283
10.21608/jappmu.2013.71334
broiler
corn distiller's dried grains with solubles
Tork
Dorra
1
Poultry Production Dept., Fac. of Agric., Mans. Univ., Egypt
AUTHOR
Z.
Kalaba
2
Poultry Production Dept., Fac. of Agric., Mans. Univ., Egypt
AUTHOR
M.
Younis
3
Poultry Production Dept., Fac. of Agric., Mans. Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF REARING STOCKING DENSITY ON GROWTH PERFORMANCE AND SOME BLOOD PARAMETERS OF GROWING RABBITS
A total of 90 unsexed 30 days weaned (New Zealand White (NZW)) rabbits were used in this experiment to study the effects of stocking density on growth performance and some blood parameters of growing rabbits, the animals were housed in wire cages (50x60x30cm) in groups of 1, 2, 3 and 4 rabbits/ cage (represented 6.6, 13.33, 20 and 26.67kg/m2). A significantly higher (p≤0.05) body condition score with better feed conversion was observed in rabbits stocked in groups having 1, 2 and 3 rabbits/ cage than those of 4 rabbits/ cage. No statistical difference was observed in average carcass weight under different placement densities. However, a significantly higher weight of liver and kidney was observed in rabbits stocked in group having 1 rabbits /cage than other groups. Animals housed in group having 2 rabbits/ cage had the highest red blood cell counts and the lowest serum level of Platelets, while the highest white blood cell counts (p≤0.05) was in rabbits stocked in group having 4 rabbits/ cage. Concentration of total protein, globulin and creatinine were higher (p≤0.05) in rabbits stocked in groups having 1 and 2 rabbits/cage than other groups. Aspartate transaminase and alkaline phosphatase activities were higher (p≤0.05) in rabbits stocked in groups having 3 and 4 rabbits/cage than the others. Albumin concentration, activity of alanine transaminase, High density lipoprotein and Lowe density lipoprotein were not affected. These results indicate that increasing density up to 4 rabbits per cage with floor area of 3000cm2, corresponding to a stocking density of 13.33 rabbits/m2 (26.67 kg/m2 at 12 week of age) adversely affect rabbit performance.
https://jappmu.journals.ekb.eg/article_71225_4fa09e56b63d9b6708c9de99d2f2c668.pdf
2013-05-01
285
295
10.21608/jappmu.2013.71225
Rabbits
growing rabbits
stocking density
carcass yield
Growth performance
blood parameters
A.
Aboegla, El-Samra
1
Dept. of Poultry Production, Fac. of Agric., Mans. University
AUTHOR
Z.
Kalaba
2
Dept. of Poultry Production, Fac. of Agric., Mans. University
AUTHOR
Lamiaa
El-Bnawy
3
Dept. of Poultry Production, Fac. of Agric., Mans. University
AUTHOR
ORIGINAL_ARTICLE
STRAIN AND SEX EFFECTS ON PRODUCTIVE AND SLAUGHTER PERFORMANCE OF DEVELOPED LOCAL EGYPTIAN AND CANADIAN CHICKEN’S STRAINS.
This experiment was conducted to evaluate the effect of strain and sex on productive performance, slaughter traits of chickens and the effect of strain on some productive as well as some reproductive traits of local improved dual purpose. A total of 1951 one day old chicks of three Canadian strains (Shaver A,B and C) and two Egyptian chicken strain (El-Salam and Mandarah). Productive performance measured from one day to 65 weeks of age and slaughter traits were recorded for cocks at 12 weeks of age. Results revealed that strain effect was clear for Shaver C strain for body weight, weight gain, feed consumption. In addition Shaver C had better feed conversion, dressing, fleshing, liver, glycogen, tenderness percentages but recorded the highest percentages for abdominal and total fat content as well as lowest testicular weight of cocks . Shaver B showed higher percentages for blood loss, feather, bones and spleen percentages, but Shaver A showed the highest percentages for PH content, ashes and water holding capacity. Sex effect showed superiority of males over females for body weight allover study periods, weight gain and feed consumption, while viability in growing period were recorded for Egyptian chickens. Strain effect was evident for shaver C strain for body weight, feed consumption and egg weight ( at sexual maturity, at first 90 days of egg production, 42 and 65 weeks of age). While strain effect for fertility, hatchability and scientific hatchability, age at sexual maturity, Egg number at first 90 days of egg production, egg number at 42 and 65 weeks of age, egg quality were recorded for Egyptian chickens. Moreover, negative correlation estimates were observed between age at sexual maturity and egg number at different periods as well as positive correlation between body weight at all period ages, and most of productive traits that of high great benefits to select for economic traits in chickens at earlier age.
From the above results we can conclude that Canadian Shaver C strain recorded the best results for most productive traits, while Egyptian strains (EL-Salam and Mandarah) recorded the best results for reproductive traits as well as egg numbers at first 90 days of egg production, 42, and 65 weeks of age. egg mass at first 90 days of egg production, fertility and hatchability percentages , viability, egg quality. And local developed Egyptian environs mental conditions from other foreign breeds.
https://jappmu.journals.ekb.eg/article_71340_45464b1ce9460027990dd23d8e2cacb4.pdf
2013-05-01
297
321
10.21608/jappmu.2013.71340
A.
Taha
1
Dep.of Anim.Husbandry and Anim. Wealth Development, Fac.of Veterinary Medicine, Alex. Univ. Egypt.
AUTHOR
F.
Abd El-Ghany
2
Anim. Prod. Res. Institute, ARC, Ministry of Agri. Egypt.
AUTHOR
M.
Sharaf
3
Dep.of Anim.Husbandry and Anim. Wealth Development, Fac.of Veterinary Medicine, Alex. Univ. Egypt.
AUTHOR
ORIGINAL_ARTICLE
GROWTH PERFORMANCE OF RABBITS FED DATE PITS IN NORTH SINAI
The present research was designed to study the effects of partial replacement of barley grains by ground date pits (GDP) in the diets of growing rabbits on growth performance, digestibility coefficients of nutrients, some blood constituents, carcass traits and economical efficiency of growing rabbits. Thirty six weaned New Zealand White rabbits were divided into three groups (12 rabbits/ group). They were assigned to receive three treatments in which ground date Pits replaced 0, 20 or 30% of barley grains. Carcass traits and blood metabolites were determined by slaughtering 5 rabbits from each group at the end of the growth trial (6 weeks). The digestibility of dry matter, organic matter, crude protein and crude fiber significantly (P<0.05) decreased with increasing GDP level (up to 30%). Daily weight gain, feed intake, carcass weight, dressing percentage were not significantly (P≥0.05) affected by (GDP). Serum total protein, albumin and globulin significantly (P<0.05) decreased with increasing GDP up to 30%. Serum glucose, cholesterol, urea-N, SAST and SALT were insignificantly (P≥0.05) affected with GDP inclusion. Rabbits fed diets containing GDP recorded lower feed costs to produce one kg gain.
Accordingly, ground date pits could be used successively and safely in feeding growing rabbits up to 30% without adverse effects on growth performance and carcass traits as well as reducing feed cost in North Sinai.
https://jappmu.journals.ekb.eg/article_71339_22018c7796a94c3d4f9129e17750374c.pdf
2013-05-01
321
333
10.21608/jappmu.2013.71339
Rabbits
Date pits
Growth performance
carcass traits
blood metabolites
M.
Mousa
1
Dept. of Animal Production, Fac. of Environmental Agric. Sci., Suez Canal University, El-Arish, North Sinai, Egypt.
AUTHOR