Effects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts

Postpartum hypocalcemia is a problem in dairy cows. Both the Jersey vs. Holstein breed and increasing parity are known risk factors. Our objectives were: (1) to evaluate a simple approach to provide dietary acidogenic salts suitable for application on small dairies and (2) to evaluate the combined e...

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Autores principales:	David B. Vagnoni, Michayla Davidson, Livia Rubio, Garrett R. Oetzel, Emmanuelle Comets
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	acidogenic salts oral calcium hypocalcemia milk fever Veterinary medicine SF600-1100 Zoology QL1-991
Acceso en línea:	https://doaj.org/article/f214f2b769ed40398161540e3c586b5f
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spelling	oai:doaj.org-article:f214f2b769ed40398161540e3c586b5f2021-11-25T16:16:30ZEffects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts10.3390/ani111131312076-2615https://doaj.org/article/f214f2b769ed40398161540e3c586b5f2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-2615/11/11/3131https://doaj.org/toc/2076-2615Postpartum hypocalcemia is a problem in dairy cows. Both the Jersey vs. Holstein breed and increasing parity are known risk factors. Our objectives were: (1) to evaluate a simple approach to provide dietary acidogenic salts suitable for application on small dairies and (2) to evaluate the combined effects of degree of acidification and oral Ca supplementation along with breed and parity group on periparturient Ca status of Holstein and Jersey cows. Cows were moved weekly from the far-off dry pen at 260 days pregnant to the close-up pen, where all cows received the acidogenic diets. The diet was offered as a total mixed ration and CaCl<sub>2</sub>, and our source of acidogenic salts was top-dressed in liquid form and mixed in by hand. Thirty-six cows were blocked by parity group (parity = 2 vs. parity ≥ 3) and breed (Holstein vs. Jersey) and assigned to one of two treatments (no intervention or postpartum oral Ca bolus supplementation) in an alternating fashion, based on expected date of parturition. Urinary acidification appeared complete within 3–4 days. Increased urinary Ca excretion was >93% of maximum from 7–21 days before falling to <5% of maximum by 28 days. Serum Ca concentrations 12–24 h postpartum were lower for Jerseys vs. Holsteins and for parity ≥ 3 vs. parity = 2 cows. Serum Ca over 6–48 h postpartum decreased and increased, respectively, with oral Ca supplementation for parity = 2 and parity ≥ 3 cows. Decreased prepartum urinary Ca excretion and increased colostrum yield appear to be independent risk factors of hypocalcemia for parity ≥ 3 Jerseys.David B. VagnoniMichayla DavidsonLivia RubioGarrett R. OetzelEmmanuelle CometsMDPI AGarticleacidogenic saltsoral calciumhypocalcemiamilk feverVeterinary medicineSF600-1100ZoologyQL1-991ENAnimals, Vol 11, Iss 3131, p 3131 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	acidogenic salts oral calcium hypocalcemia milk fever Veterinary medicine SF600-1100 Zoology QL1-991
spellingShingle	acidogenic salts oral calcium hypocalcemia milk fever Veterinary medicine SF600-1100 Zoology QL1-991 David B. Vagnoni Michayla Davidson Livia Rubio Garrett R. Oetzel Emmanuelle Comets Effects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts
description	Postpartum hypocalcemia is a problem in dairy cows. Both the Jersey vs. Holstein breed and increasing parity are known risk factors. Our objectives were: (1) to evaluate a simple approach to provide dietary acidogenic salts suitable for application on small dairies and (2) to evaluate the combined effects of degree of acidification and oral Ca supplementation along with breed and parity group on periparturient Ca status of Holstein and Jersey cows. Cows were moved weekly from the far-off dry pen at 260 days pregnant to the close-up pen, where all cows received the acidogenic diets. The diet was offered as a total mixed ration and CaCl<sub>2</sub>, and our source of acidogenic salts was top-dressed in liquid form and mixed in by hand. Thirty-six cows were blocked by parity group (parity = 2 vs. parity ≥ 3) and breed (Holstein vs. Jersey) and assigned to one of two treatments (no intervention or postpartum oral Ca bolus supplementation) in an alternating fashion, based on expected date of parturition. Urinary acidification appeared complete within 3–4 days. Increased urinary Ca excretion was >93% of maximum from 7–21 days before falling to <5% of maximum by 28 days. Serum Ca concentrations 12–24 h postpartum were lower for Jerseys vs. Holsteins and for parity ≥ 3 vs. parity = 2 cows. Serum Ca over 6–48 h postpartum decreased and increased, respectively, with oral Ca supplementation for parity = 2 and parity ≥ 3 cows. Decreased prepartum urinary Ca excretion and increased colostrum yield appear to be independent risk factors of hypocalcemia for parity ≥ 3 Jerseys.
format	article
author	David B. Vagnoni Michayla Davidson Livia Rubio Garrett R. Oetzel Emmanuelle Comets
author_facet	David B. Vagnoni Michayla Davidson Livia Rubio Garrett R. Oetzel Emmanuelle Comets
author_sort	David B. Vagnoni
title	Effects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts
title_short	Effects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts
title_full	Effects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts
title_fullStr	Effects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts
title_full_unstemmed	Effects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts
title_sort	effects of postpartum supplemental oral ca for dairy cows fed prepartum dietary acidogenic salts
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f214f2b769ed40398161540e3c586b5f
work_keys_str_mv	AT davidbvagnoni effectsofpostpartumsupplementaloralcafordairycowsfedprepartumdietaryacidogenicsalts AT michayladavidson effectsofpostpartumsupplementaloralcafordairycowsfedprepartumdietaryacidogenicsalts AT liviarubio effectsofpostpartumsupplementaloralcafordairycowsfedprepartumdietaryacidogenicsalts AT garrettroetzel effectsofpostpartumsupplementaloralcafordairycowsfedprepartumdietaryacidogenicsalts AT emmanuellecomets effectsofpostpartumsupplementaloralcafordairycowsfedprepartumdietaryacidogenicsalts
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Effects of Postpartum Supplemental Oral Ca for Dairy Cows Fed Prepartum Dietary Acidogenic Salts

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