2024-03-29T11:30:06Z
https://jappmu.journals.ekb.eg/?_action=export&rf=summon&issue=8073
Journal of Animal and Poultry Production
2090-3642
2090-3642
2015
6
5
HIGH DIETARY FAT LEVEL IN RABBIT RATION CAN INFLUENCE LITTER SIZE, LITTER WEIGHT, MORTALITY RATE AND NUMBER OF SERVICES PER CONCEPTION?
A.
Mehrez
W.
Khalil
Sh.
Shamiah
Aya
Mostafa
The present study was carried out at Rabbit Research Unit, Agricultural Researches and Experiments Station, Faculty of Agriculture Mansoura University, EL-Mansoura, Egypt, during the period from December 2013 to December 2014. This study aimed to examine the effect of increasing level of fat in the diet of does and bucks of New Zealand and California rabbits on their reproductive performance. The rabbit does and bucks within each strain (New Zealand White and California) were divided into two groups. The two groups were assigned at random to receive one of the two experimental diets which were formulated to be similar in DE but vary in EE. First group was fed on a commercial diet containing 3% fat (Control).Second group was fed on a diet supplemented with sunflower oil (rich in omega 6) to increase EE content to 6%. The following mating system was as follows:
- Treatment 1: bucks 3% inseminated does 3%.
- Treatment 2: bucks 3% inseminated does 6%.
- Treatment 3: bucks 6% inseminated does 3%.
- Treatment 4: bucks 6% inseminated does 6%.
Reproductive performance of does (number of service per conception, litter size and litter size weight at (birth, 21 days and weaning and mortality rate at (21 days and weaning) were recorded. In general, results show that increasing fat in the rations of bucks or does or both led to significant decrease in litter size at birth, 21 days and weaning compared to bucks and does fed control ration containing normal fat level. This was also accompanied by a significant decreased in weight of litter size. The results show higher number of services per conception in all treatment than the control ration. It is worth noting that average percentages of mortality rate at 21 days and weaning were significantly (P<0.05) higher in rabbit buck or does or both treated with high level of fat than those fed on the control ration in New Zealand and California rabbit pups.
In conclusion, the addition of high level of fat (rich in omega 6 - sunflower oil) has reduced litter size, increased number of services per conception and increased mortality rate. This finding needs further studies to determine the effect of high level of fat on the parameters studied. This may be accomplished by measurement of fatty acid differentiation in blood plasma, follicular fluid and seminal plasma. In addition, measurement of pH value of vagina and seminal plasma could explain the effect of high level of fat on number of services per conception. While, analysis of does milk and anatomy of died pups could explain the higher mortality rate.
Rabbits
dietary fat
reproductive performance
2015
05
01
235
246
https://jappmu.journals.ekb.eg/article_52758_84e22a9985d01b0d4180dc60abedb1bd.pdf
Journal of Animal and Poultry Production
2090-3642
2090-3642
2015
6
5
INFLUENCE OF STRAIN AND DIETARY LEVEL OF ENZYME-COCKTAIL ON PRODUCTIVE PERFORMANCE, BLOOD PARAMETERS AND LYMPHOID ORGANS OF BROILER
M.
Abdelaziz
Nematallah
Ali
G.
Rayan
The present experiment was designed to study effects of broiler strain and dietary level of enzyme cocktail (PhytaBex® Plus), on productive performance, some blood plasma parameters and lymphoid organs. A total of 270 one-day old broiler chicks (135 Avian chicks and 135 Cobb chicks) were distributed over six experimental groups according to a (2 х 3) factorial design. There were three different experimental diets presented to chicks within each strain as; T1: fed basal diet (BD); T2: BD + PhytaBex® Plus (100 g/ ton) and T3: fed BD + PhytaBex® Plus (200 g/ ton). Live body weight (LBW) and daily weight gain (DWG) during starter phase showed that chicks of Cobb strain recorded significantly higher LBW and DWG compared to chicks of Avian strain, whereas, birds fed T2 or T3 diets had heavier LBW and recorded higher DWG compared to those fed T1 diet. Strain, enzyme level and their interactions, had no significant effects on final LBW or DWG during grower phase. Values of daily feed intake (DFI) during starter phase showed that chicks of Cobb strain recorded significantly higher DFI compared to chicks of Avian strain, while, birds fed T2 or T3 diets consumed more feed than those fed T1 diet. Additionally, DFI during grower phase presented no significant differences between strains, whereas enzyme level had significantly decreased DFI of birds fed T1 diet compared to birds fed T2 or T3 diets. Values of feed conversion ratio (FCR) during starter or grower periods, indicated no significant differences between strains, enzyme levels or their interactions. Enzyme level had no significant effect on all of blood plasma parameters, except for plasma cholesterol, while strain had a significant effect on most of blood plasma parameters except for plasma albumin and cholesterol. Relative weights of lymphoid organs were not significantly affected by strain, dietary enzyme level or their interactions.
Finally, it could be suggested that addition of enzyme cocktail PhytaBex® Plus in dietsof Cobb or Avian broiler strains, had some favorable effects on productive performance, with no harmful effects on bird's immunity or blood plasma traits.
Strain
enzyme-cocktail
broilers performance
blood plasma
lymphoid organs
2015
05
01
247
260
https://jappmu.journals.ekb.eg/article_52759_0906d6648f4282a2830f769343ee3230.pdf
Journal of Animal and Poultry Production
2090-3642
2090-3642
2015
6
5
EFFECT OF ENZYME PREPARATION AND SOME BIOLOGICAL GROWTH PROMOTERS ON PERFORMANCE OF BROILERS FED CORN-SOYBEAN MEAL BASED DIETS
A.
El-Faham
A.
Ahmed
M.
Abdelaziz
An experiment was conducted to compare the effect of supplementing multi-enzyme preparation Phytabex-Plus (200 g/ ton), or some biological growth promoters [Amio-Flash (2 Kg/ ton) and Bio-Strong (150 g/ ton)] or new natural growth promoter [Bio-Feed (1 Kg/ ton)] to starter and grower diets on growth performance, carcass traits and some blood plasma constituents as well as economic efficiency during growth period (0-5 wks of age). A total of 150 unsexed one day-old Cobb broiler chicks were distributed equally into 5 dietary treatments in 3 replicates of 10 birds each. Feed and water were supplied ad-libitum till the end of the experiment at 5 weeks. At the end of experiment, 3 birds from each treatment were randomly slaughtered for blood plasma constituents analysis and carcass measurements. The results indicated that live body weight, body weight gain, feed consumption, feed conversion ratio and performance index were significantly affected by growth promoters or enzyme preparation supplementation during the overall experimental period (0-5 wks of age). Chicks fed diets supplemented with Amio-Flash recorded the best values of the previous traits than those fed other dietary treatments.
Carcass traits indicated that different growth promoters or enzyme preparation had no effects on carcass characteristics. Plasma total protein, Albumin, globulin and cholesterol were significantly increased while,, AST and ALT were significantly decreased by adding Amio-Flash to the diets as compared to the control. Feeding economical efficiency was improved for broiler chicks by feeding diets supplemented with Amio-Flash or enzyme preparation than the control. These results indicated that supplementing Amio-Flash as a growth promoter or Phytabex-Plus as an enzyme product to broiler diets could be used to maximize growth performance as well as economic efficiency during growth period (0-5 wks of age).
broiler
performance
Phytabex-Plus
Amio-Flash
Bio-Feed and Bio-Strong
2015
05
01
261
274
https://jappmu.journals.ekb.eg/article_52760_bd47464ce32a3287fb795e17969255a9.pdf
Journal of Animal and Poultry Production
2090-3642
2090-3642
2015
6
5
CHEESE WHEY AS A NATURAL SOURCE OF PEROXIDASE TO AMELIORATE THE NEGATIVE EFFECTS OF PHENOLIC COMPOUNDS OF FEED INGREDIENTS AND THE GOSSYPOL OF COTTONSEEDS IN RABBITS DIETS.
A.
Mehrez
M.
El-Harairy
W.
Khalil
M.
Shetefa
M.
Salama
This study was conducted to investigate the influence of 3 levels of cheese whey as a natural source of peroxidase to overcome the negative effects of poly- phenolic compounds naturally found in feed ingredients of rabbit feed. Thirty New Zealand growing rabbits were used. The rabbits were divided according to body weight into 5 similar experimental groups. They were assigned at random to receive the 5 experimental diets. The control ration was a commercial diet. Un-decorticated cotton seed cake partially replaced soybean meal protein in the second diet. The other 3 experimental diets were the same as diet 2 but supplemented with 1, 2, and 3%. of cheese whey, respectively. The experiment lasted for 72 days to study the effects on nutrients digestibility and feeding values, growth performance, and economical efficiency.
Results showed that rabbits fed diet containing 3% whey recorded significant increase in digestibility coefficients of DM, OM, CP, CF, EE and NFE compared to the other ratios while diets which contained 2 or 3% whey had higher digestibility of NDF, ADF, hemi- cellulose, cellulose and lignin. The nutritive value as TDN, DE and ME significantly (P<0.01) increased with 2 or 3% whey. Final body weights were 2545, 2248.33, 2466.67, 2470.50 and 2456.67 g. for animals fed the control, 0, 1, 2 and 3% whey, respectively. Corresponding averages of daily gains were 26.02, 21.78, 24.84, 24.85 and 24.63 g. These results revealed significant (P<0.05) improvement in growth performance in response to whey supplementation. In addition, economical efficiency and relative economic efficiency were the best for the group fed 1% whey (163.41 and 119.27%) followed by the other groups. It was concluded that cheese whey could be used as a natural source of peroxidase to ameliorate the negative effects of phenolic compounds naturally found in feed ingredients and the gossypol of cotton seeds.
Rabbits
cotton seed meal
cheese whey
peroxidase
nutrient digestibility
Growth performance
economical efficiency
2015
05
01
275
285
https://jappmu.journals.ekb.eg/article_52761_e5d2820018d11bfc3cd0cb8673e6ea92.pdf
Journal of Animal and Poultry Production
2090-3642
2090-3642
2015
6
5
IMPACT OF AQUAFAT-O® ON GROWTH PERFORMANCE, FEED UTILIZATION, CHEMICAL COMPOSITION AND ECONOMIC EFFICIENCY OF ADULT NILE TILAPIA, Oreochromis niloticus
F
Khalil
A.
Gabr
M.
Refaey
M.
Al Samarae
The aims of the present study were to assess the effects of the replacement graded levels of aquafat-O® (0, 1, 2 and 3%) instead of corn oil on the growth performance, feed and nutrients utilization, chemical composition of the whole fish body and the economic efficiency of adult Nile tilapia Oreochromis niloticus,( females and the males) for 11 weeks. The obtained results showed the replacement of aquafat-O® at a level of 1% for adult O. niloticus, females and males significantly (P ≤ 0.05) enhanced fish growth, feed intake and nutrients utilization, as well as realized slight improving of chemical composition of the whole fish body and economic efficiency. Hence, it could be concluded that replacement of aquafat-O® at a level 1% of corn oil led to improvement of productive performance and economic efficiency of the adult females and males Nile tilapia (O. niloticus). It so may be using of aquafat-O® as a growth promoter in fish farming and hatcheries.
Nile tilapia – aquafat-O®
growth performance – economic efficiency
2015
05
01
287
299
https://jappmu.journals.ekb.eg/article_52763_6e53a0122510e8947eae17f8fc36fb30.pdf