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Mineral Metabolism in Singleton and Twin-pregnant Dairy Goats.

Härter CJ, Castagnino DS, Rivera AR, Lima LD, Silva HG, Mendonça AN, Bonfim GF, Liesegang A, St-Pierre N, Teixeira IA - Asian-australas. J. Anim. Sci. (2015)

Bottom Line: During pregnancy, the maternal body undergoes significant physiological changes.Dry matter intake decreased linearly up to 140 days of gestation.In conclusion, related to Ca, P, and Mg metabolism can be divided into two stages.

View Article: PubMed Central - PubMed

Affiliation: Institute of Animal Nutrition, University of Zurich, Zurich, CH-8057, Switzerland .

ABSTRACT
During pregnancy, the maternal body undergoes significant physiological changes. The present study assessed the changes on calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) metabolism in singleton and twin-pregnant dairy goats. The 42 goats used (49.5 kg±7.6 body weight [BW]) were assigned at random to treatments that were factorially arranged to account for 2 breeds (Oberhasli and Saanen), 2 pregnancy types (singleton and twin) and 3 gestation periods (80, 110, and 140 days). Digestibility trials were performed at 80, 110, and 140 days of gestation. Mineral retention during pregnancy was determined in the maternal body, femur, uterus, mammary gland, fetus and fetal fluid. Blood samples were taken during pregnancy before and after a meal, and Ca, P, Mg, Na, K ions and alkaline phosphatase activity determined in serum. Bone mineral density was determined in the right femur. Statistical analyses were performed using the SAS MIXED procedure. Dry matter intake decreased linearly up to 140 days of gestation. Maternal BW gain, and Ca, P, and Mg retention (g/kg) decreased linearly with the advance of gestation days. Macromineral retention in maternal body (g/kg) was greater in Oberhasli than Saanen goats, and their fetuses had higher Ca, P, and Mg deposition (mg/g). Mineral retention (mg/g) increased in fetuses according to pregnancy development, with no differences between singleton and twin pregnancy. In the mammary gland, the retention of all minerals (g) increased with the days of pregnancy. In conclusion, related to Ca, P, and Mg metabolism can be divided into two stages. Up to 80 days of gestation, was characterized by the preparation of the maternal body reserves for future mineral demands. From 80 days of gestation onward, was characterized by the transfer of maternal body reserves for fetal development and colostrum production. Na and K supply was provided by adjustments in endogenous excretion and an increase in intestinal absorption. Finally, mineral metabolism was specific to each genotype and, except for Na, was not affected by the number of fetuses.

No MeSH data available.


Serum potassium levels (mmol/L) in pregnant Saanen and Oberhasli goats at T0 and T4 blood collection times (±standard error). * p<0.05; ** p<0.01.
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f2-ajas-28-1-37: Serum potassium levels (mmol/L) in pregnant Saanen and Oberhasli goats at T0 and T4 blood collection times (±standard error). * p<0.05; ** p<0.01.

Mentions: Serum Ca, K, and Ca+ levels were higher before feeding (Table 9), whereas P, Mg, and Na levels were higher 4 h after feeding (T4, p<0.01). Oberhasli goats had higher serum K levels (p<0.05) than Saanen goats four hours after feeding (Figure 2). Serum Ca levels changed over pregnancy development, increasing 0.5 mg/dL up to 80 days of gestation and decreasing significantly after 110 days (p<0.05; Figure 3). Serum K levels decreased with pregnancy development, whereas alkaline phosphatase achieving the highest concentrations at 80 days of gestation and decreasing after this (p<0.05).


Mineral Metabolism in Singleton and Twin-pregnant Dairy Goats.

Härter CJ, Castagnino DS, Rivera AR, Lima LD, Silva HG, Mendonça AN, Bonfim GF, Liesegang A, St-Pierre N, Teixeira IA - Asian-australas. J. Anim. Sci. (2015)

Serum potassium levels (mmol/L) in pregnant Saanen and Oberhasli goats at T0 and T4 blood collection times (±standard error). * p<0.05; ** p<0.01.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4283187&req=5

f2-ajas-28-1-37: Serum potassium levels (mmol/L) in pregnant Saanen and Oberhasli goats at T0 and T4 blood collection times (±standard error). * p<0.05; ** p<0.01.
Mentions: Serum Ca, K, and Ca+ levels were higher before feeding (Table 9), whereas P, Mg, and Na levels were higher 4 h after feeding (T4, p<0.01). Oberhasli goats had higher serum K levels (p<0.05) than Saanen goats four hours after feeding (Figure 2). Serum Ca levels changed over pregnancy development, increasing 0.5 mg/dL up to 80 days of gestation and decreasing significantly after 110 days (p<0.05; Figure 3). Serum K levels decreased with pregnancy development, whereas alkaline phosphatase achieving the highest concentrations at 80 days of gestation and decreasing after this (p<0.05).

Bottom Line: During pregnancy, the maternal body undergoes significant physiological changes.Dry matter intake decreased linearly up to 140 days of gestation.In conclusion, related to Ca, P, and Mg metabolism can be divided into two stages.

View Article: PubMed Central - PubMed

Affiliation: Institute of Animal Nutrition, University of Zurich, Zurich, CH-8057, Switzerland .

ABSTRACT
During pregnancy, the maternal body undergoes significant physiological changes. The present study assessed the changes on calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) metabolism in singleton and twin-pregnant dairy goats. The 42 goats used (49.5 kg±7.6 body weight [BW]) were assigned at random to treatments that were factorially arranged to account for 2 breeds (Oberhasli and Saanen), 2 pregnancy types (singleton and twin) and 3 gestation periods (80, 110, and 140 days). Digestibility trials were performed at 80, 110, and 140 days of gestation. Mineral retention during pregnancy was determined in the maternal body, femur, uterus, mammary gland, fetus and fetal fluid. Blood samples were taken during pregnancy before and after a meal, and Ca, P, Mg, Na, K ions and alkaline phosphatase activity determined in serum. Bone mineral density was determined in the right femur. Statistical analyses were performed using the SAS MIXED procedure. Dry matter intake decreased linearly up to 140 days of gestation. Maternal BW gain, and Ca, P, and Mg retention (g/kg) decreased linearly with the advance of gestation days. Macromineral retention in maternal body (g/kg) was greater in Oberhasli than Saanen goats, and their fetuses had higher Ca, P, and Mg deposition (mg/g). Mineral retention (mg/g) increased in fetuses according to pregnancy development, with no differences between singleton and twin pregnancy. In the mammary gland, the retention of all minerals (g) increased with the days of pregnancy. In conclusion, related to Ca, P, and Mg metabolism can be divided into two stages. Up to 80 days of gestation, was characterized by the preparation of the maternal body reserves for future mineral demands. From 80 days of gestation onward, was characterized by the transfer of maternal body reserves for fetal development and colostrum production. Na and K supply was provided by adjustments in endogenous excretion and an increase in intestinal absorption. Finally, mineral metabolism was specific to each genotype and, except for Na, was not affected by the number of fetuses.

No MeSH data available.