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Systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder Holstein Friesian crossbred cows of Kesharbag, Chitwan, Nepal

BACKGROUND AND AIM: In repeat breeding, a sexually mature cow fails to conceive even after three or more consecutive inseminations despite being without any clinically detectable reproductive anomalies. This is a major cause of economic loss in livestock farms, particularly in developing countries,...

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Autores principales: Regmi, Girija, Dhakal, Ishwari Prasad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Veterinary World 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7750210/
https://www.ncbi.nlm.nih.gov/pubmed/33363326
http://dx.doi.org/10.14202/vetworld.2020.2353-2357
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author Regmi, Girija
Dhakal, Ishwari Prasad
author_facet Regmi, Girija
Dhakal, Ishwari Prasad
author_sort Regmi, Girija
collection PubMed
description BACKGROUND AND AIM: In repeat breeding, a sexually mature cow fails to conceive even after three or more consecutive inseminations despite being without any clinically detectable reproductive anomalies. This is a major cause of economic loss in livestock farms, particularly in developing countries, where humans and livestock directly compete for food, and the mineral content of animal feed is rarely checked. This study investigated the association between systemic iron, phosphorus, and total protein and estrous cyclicity in crossbred Holstein Friesian cows. MATERIALS AND METHODS: Blood samples were collected from 10 normal cyclic and 10 repeat breeder cows 12 h after the onset of estrus. Serum was separated, and iron, phosphorus, and total protein were quantified with spectrophotometry, using standard controls for all three measurement parameters (iron, phosphorus, and total protein). RESULTS: Iron and phosphorus levels were significantly (p<0.05) lower in the repeat breeders group than in the normocyclic group, but no significant differences were found in total protein levels. CONCLUSION: Repeat breeding is associated with systemic iron and phosphorus levels but is independent of total protein level.
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spelling pubmed-77502102020-12-23 Systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder Holstein Friesian crossbred cows of Kesharbag, Chitwan, Nepal Regmi, Girija Dhakal, Ishwari Prasad Vet World Research Article BACKGROUND AND AIM: In repeat breeding, a sexually mature cow fails to conceive even after three or more consecutive inseminations despite being without any clinically detectable reproductive anomalies. This is a major cause of economic loss in livestock farms, particularly in developing countries, where humans and livestock directly compete for food, and the mineral content of animal feed is rarely checked. This study investigated the association between systemic iron, phosphorus, and total protein and estrous cyclicity in crossbred Holstein Friesian cows. MATERIALS AND METHODS: Blood samples were collected from 10 normal cyclic and 10 repeat breeder cows 12 h after the onset of estrus. Serum was separated, and iron, phosphorus, and total protein were quantified with spectrophotometry, using standard controls for all three measurement parameters (iron, phosphorus, and total protein). RESULTS: Iron and phosphorus levels were significantly (p<0.05) lower in the repeat breeders group than in the normocyclic group, but no significant differences were found in total protein levels. CONCLUSION: Repeat breeding is associated with systemic iron and phosphorus levels but is independent of total protein level. Veterinary World 2020-11 2020-11-06 /pmc/articles/PMC7750210/ /pubmed/33363326 http://dx.doi.org/10.14202/vetworld.2020.2353-2357 Text en Copyright: © Regmi and Dhakal. http://creativecommons.org/licenses/by/4.0 Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Regmi, Girija
Dhakal, Ishwari Prasad
Systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder Holstein Friesian crossbred cows of Kesharbag, Chitwan, Nepal
title Systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder Holstein Friesian crossbred cows of Kesharbag, Chitwan, Nepal
title_full Systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder Holstein Friesian crossbred cows of Kesharbag, Chitwan, Nepal
title_fullStr Systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder Holstein Friesian crossbred cows of Kesharbag, Chitwan, Nepal
title_full_unstemmed Systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder Holstein Friesian crossbred cows of Kesharbag, Chitwan, Nepal
title_short Systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder Holstein Friesian crossbred cows of Kesharbag, Chitwan, Nepal
title_sort systemic levels of iron, phosphorus, and total protein in normocyclic versus repeat breeder holstein friesian crossbred cows of kesharbag, chitwan, nepal
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7750210/
https://www.ncbi.nlm.nih.gov/pubmed/33363326
http://dx.doi.org/10.14202/vetworld.2020.2353-2357
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