Hashem,, A., Hussein, A., Abd-Elaziz, A., Abou-Steit, T. (2005). PLASMA CONCENTRATIONS OF SOME MINERALS IN EGYPTIAN BALADI DOES DURING PREGNANCY AND LACTATION. Journal of Animal and Poultry Production, 30(10), 5831-5838. doi: 10.21608/jappmu.2005.238045
A. L.S. Hashem,; A. F. Hussein; A. M.S. Abd-Elaziz; Thwayba M. Abou-Steit. "PLASMA CONCENTRATIONS OF SOME MINERALS IN EGYPTIAN BALADI DOES DURING PREGNANCY AND LACTATION". Journal of Animal and Poultry Production, 30, 10, 2005, 5831-5838. doi: 10.21608/jappmu.2005.238045
Hashem,, A., Hussein, A., Abd-Elaziz, A., Abou-Steit, T. (2005). 'PLASMA CONCENTRATIONS OF SOME MINERALS IN EGYPTIAN BALADI DOES DURING PREGNANCY AND LACTATION', Journal of Animal and Poultry Production, 30(10), pp. 5831-5838. doi: 10.21608/jappmu.2005.238045
Hashem,, A., Hussein, A., Abd-Elaziz, A., Abou-Steit, T. PLASMA CONCENTRATIONS OF SOME MINERALS IN EGYPTIAN BALADI DOES DURING PREGNANCY AND LACTATION. Journal of Animal and Poultry Production, 2005; 30(10): 5831-5838. doi: 10.21608/jappmu.2005.238045
PLASMA CONCENTRATIONS OF SOME MINERALS IN EGYPTIAN BALADI DOES DURING PREGNANCY AND LACTATION
1Animal and Poultry Physiology Department, Desert Research Center, Mataryia, Cairo, Egypt.
2Department of Animal Production, Faculty of Agriculture, Ain-Shams University, Shoubra EI-Keima, Egypt.
Abstract
The present study was carried out at Maryout Research Station (35 km north western of Alexandria), belonging to the Desert Research Center. Twenty pregnant Baladi goats (2-3.5 yrs old and average body weight 28.2 ± 0.94 kg) were used to investigate the changes in some blood minerals (calcium, phosphorus, magnesium and zinc) concentration during pregnancy (early and late) and lactation (early, mid and late) periods. Does were synchronized for estrus using Estrumate PGF20 (Estrumate analogue) and pregnancy was diagnosed by plasma progesterone determination on day 22 postmating.
Results revealed that calcium increased significantly in the late gestation and early lactation periods and ranged between 8.7 to 11 mg/dl then declined to 7.3 mg/dl at parturition .. Magnesium tended to decrease significantly either at late gestation or at parturition as compared to lactation period. From early to mid lactation period, the magnitude changes in Ca, P and Mg concentrations were found to be 27.2, 27.1 and 13.1 %, respectively. On the other hand, calcium: phosphorus ratio (1.7: 1 ) was found to be within the normal level. The maximum level of zinc was recorded at the last month of gestation then declined at parturition.
Positive correlation coefficients were found between Ca and P during the different physiological status. Also, negative correlations between Mg and other minerals were noticed during gestation period while the corresponding correlations were positive during the lactation period.
The present study concluded that The results concluded that Ca, P, Mg and Zn concentrations decreased to minimum levels at parturition time whereas its increased at mid and late of lactation. However? profile parallel to Ca profile throughout the studying period which reached to maximum levels at the late of pregnancy and mid of lactation and decreased to minimum levels at parturition time.
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