2024-03-29T15:45:35Z
https://jappmu.journals.ekb.eg/?_action=export&rf=summon&issue=8072
Journal of Animal and Poultry Production
2090-3642
2090-3642
2015
6
4
AGE OF PUBERTY AND FERTILITY OF MALE NEW ZEALAND WHITE RABBITS ORALLY ADMINISTERED WITH ROYAL JELLY OR/ AND BEE HONEY
A.
Khadr
A.
Abdou
A.
El-Sherbiny
The present study was designed to investigate the effects of royal jelly (RJ) or/ and bee honey (H) on age of sexual puberty, semen quality and fertility of male New Zealand White (NZW) rabbits. Eighty pre-pubertal male NZW rabbits and 80 hybrid nonparous female rabbits were used in the present study. Male rabbits were randomly divided into 4 groups (20 bucks per group), bucks were administered orally with 0.5 mL of a solution/ kg body weight (BW), 3 times weekly for 6 weeks; which contained: 1) water for control (1st group), 2) 0.25 mL bee honey + 0.25 mL water (2nd group), 3) 200 mg royal jelly + 0.5 mL water (3rd group) and 200 mg royal jelly + 0.25 mL honey + 0.25 mL water (4th group).
The results of the present study showed that pre-pubertal NZW rabbits received RJ or/ H and showed significantly earlier (P<0.05) puberty age (earlier ages at testis descending into scrotum, separation of penis from sheath, beginning of fighting, first ejaculated sperm, appearance of sperm in testis and epididymis); decrease (P<0.05) of reaction time, increase of ejaculate volume, percentage of sperm progressive motility, sperm-cell concentration and seminal plasma fructose concentration compared to control group. On the other hand, percentages of dead and abnormal spermatozoa increased significantly (P<0.05) for control group compared to the other three groups. Blood plasma concentrations of testosterone and cholesterol increased significantly (P<0.05) for royal jelly or/ and bee honey groups compared with control. Otherwise, plasma activities of aspartate amino transferase (AST) and alanine amino transferase (ALT) differed non-significantly among groups. Rabbit bucks treated with royal jelly or/ and bee honey showed better fertility (higher conception rate and litter size) than control bucks.
In conclusion, the results of the present study showed that oral administration of royal jelly or/ and bee honey at any level could be used beneficially to have earlier puberty age, improve semen quality and fertility of male NZW rabbits. This improvement was also mirrored on better liver functions as observed with normal concentrations of AST and ALT.
rabbit bucks
fertility
bee honey
puberty
Rabbits
royal jelly
puberty semen
2015
04
01
201
217
https://jappmu.journals.ekb.eg/article_52748_3fce332b1e99a6030b712e5dff17bb65.pdf
Journal of Animal and Poultry Production
2090-3642
2090-3642
2015
6
4
INFLUENCE OF PROTECTED LINSEED MEAL AND COTTON SEED MEAL BY TANNINS ON ZARAIBI DAIRY GOATS AND THEIR OFFSPRING PERFORMANCE
M.
Abo El-Fadel
T.
Ashmawy
This study aims to evaluate the effect of treated linseed meal or cotton seed meal with different levels of condensed tannins (quebracho tannins, QT; Unitan, Argentina) on Zaraibi dairy goats and their offspring performance. Both protein sources were treated with four levels of tannin (1, 2, 3 and 4 %) on dry matter basis. An in situ experiment was conducted to study the effect of treatment on the rate of disappearance of DM, OM and CP in the rumen using a pair of cannulated buffalo mature bulls where they were fed on clover hay by 1/3 of their daily requirements while concentrate feed mixture given by 2/3 of the animal requirements. According to the results of in situ degradation trial, two better CFM’s in addition to the two untreated meal were fed to thirty two Zaraibi goats (BW 51.5± 1.75 Kg). They were randomly divided into four similar groups (8 does/ each) where the untreated groups (R1 and R3)fed 60% CFM contained untreated linseed meal or cotton seed meal respectively, and 40% rice straw. The two treated groups were fed 60% CFM contained treated linseed meal or cotton seed meal by quebracho tannin (QT) at the rate of 2% plus 40% rice straw (R2 and R4, respectively) on DM basis for all rations. Nutrients requirements were calculated according to NRC (1994). At the end of the experiment digestibility trails were conducted to estimate the digestibility and feeding values of the experimental rations using acid insoluble ash technique (using 3/g goats) for each trial.
Results indicated that in situ degradability of DM and OM were significantly decreased with increasing the level of tannin up to 4% and also, crude protein degradability values followed similar trend to that of DM and OM among treatments. In other words, the UDP was increased as increasing tannin levels into the highest level (4%). Insignificant differences among different experimental treatments were showed for digestibility coefficients of all nutrients expect of CP which was significantly higher for R2 and insignificantly higher with R4 than that ofcroesponding untreated group R1 which had lower value of digestion coefficient of CP and there is no significant difference between R1 and R3. No significant differences were observed between R2, R3 and R4 in DCP values, however, R4 had higher significant differences with R1. While TDN values were quite similar among treatments. Daily milk yield for R2 and R4 rations were significantly (P<0.05) higher as compared with that of R1 and R3 with the highest value occurred with R4. No significant differences were noticed among experimental rations in all milk constituents except for fat percentage which reduced significantly with R4 vs R3. In matching with milk yield, protein yield for R2 and R4 were significantly higher (P<0.05) than those of untreated groups (R1 and R3), while fat yield was insignificant increased by dietary treatments. Daily gain for kids from birth up to weaning was significantly (P<0.05) higher for treated rations than kids fed untreated ones by tannins (R1 and R3). Also, results indicated that the untreated rations (R1 and R3) gave the lowest conception rate (25.0%), while groups fed R2 and R4 gave 75.0 and 87.5%, respectively, conception rate with significant differences due to QT treatments for both kind of protein sources. Based on these results, it could be concluded that the protection process of linseed meal and cotton seed meal with 2% QT can improved the CP utilization and dairy goats performance.
dairy goats
linseed meal
cotton seed meal
condensed tannins
degradation kinetics
digestibility
milk production and reproduction
2015
04
01
219
234
https://jappmu.journals.ekb.eg/article_52750_0d31ad489c2c868774201bd1e98b93a0.pdf