Influence of weaning management at 30, 75 and 180 days of age on non‐esterified fatty acids and reproductive performance in beef cows

This study aimed to investigate the effect of age at weaning of calves on non‐esterified fatty acids (NEFA) and reproductive parameters of beef cows. Animals (n = 65) were randomly assigned to three treatments after calving: hyper‐early weaning (W30) at 32 ± 0.89 days, early weaning (W75) at 77 ± 0....

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Published in:Journal of animal physiology and animal nutrition 2023-03, Vol.107 (2), p.407-417
Main Authors: Alforma, Antónia Mendes Paizano, Pereira, Gabriel Ribas, Rocha, Marcela Kuczynski, Teixeira, Odilene de Souza, Oliveira, Maria Carolina Muniz, Lima, Júlia Abud, Cumbe, Télis Adolfo, Barcellos, Júlio Otávio Jardim
Format: Article
Language:English
Subjects:
Age factors
Animals
Beef
Beef cattle
Body Weight
bovine
Calves
Cattle
Cattle Diseases
Esterification
Fatty acids
Fatty Acids, Nonesterified
Female
metabolites
non‐esterified fatty acids
Overweight - veterinary
Parturition
Physical growth
Postpartum
Postpartum Period
Pregnancy
pregnancy rates
Progesterone
Reproduction
Weaning
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creator Alforma, Antónia Mendes Paizano
Pereira, Gabriel Ribas
Rocha, Marcela Kuczynski
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Oliveira, Maria Carolina Muniz
Lima, Júlia Abud
Cumbe, Télis Adolfo
Barcellos, Júlio Otávio Jardim
description This study aimed to investigate the effect of age at weaning of calves on non‐esterified fatty acids (NEFA) and reproductive parameters of beef cows. Animals (n = 65) were randomly assigned to three treatments after calving: hyper‐early weaning (W30) at 32 ± 0.89 days, early weaning (W75) at 77 ± 0.95 days, and conventional weaning (W180) at 183 ± 0.82 days. Body weight (BW) and body condition score (BCS) were evaluated at parturition (AP) and at 30, 45, 64, 81, 100 and 115 days postpartum (dPP). Blood samples were collected to analyze NEFA levels and progesterone (P4) at 30, 45, 64 and 81 dPP. Higher BW and BCS were observed from 64 to 115 dPP in W30 cows than W180 ones (p 
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Animals (n = 65) were randomly assigned to three treatments after calving: hyper‐early weaning (W30) at 32 ± 0.89 days, early weaning (W75) at 77 ± 0.95 days, and conventional weaning (W180) at 183 ± 0.82 days. Body weight (BW) and body condition score (BCS) were evaluated at parturition (AP) and at 30, 45, 64, 81, 100 and 115 days postpartum (dPP). Blood samples were collected to analyze NEFA levels and progesterone (P4) at 30, 45, 64 and 81 dPP. Higher BW and BCS were observed from 64 to 115 dPP in W30 cows than W180 ones (p < 0.05). Cows subjected to W30 condition had higher levels of NEFA at 30 dPP compared to 64 and 81 dPP (p < 0.05). We also observed that cows from W180 group showed decreased levels of NEFA at 30 dPP compared to 45 (p < 0.01) and 64 dPP (p < 0.05). The highest P4 level was observed at 64 dPP in W30 cows compared to W75 and W180 (p < 0.05). We also observed higher CR of W30 (86%) compared to W180 (47%) at 45 dPP (p < 0.05). The overall pregnancy rate (PR) was higher for W30 (95.5%) than W180 (73.9%). In addition, higher BW at calving and P4 levels at 30 dPP were positively correlated with the possibility of pregnancy (p < 0.05). Improvement in BW and BCS were observed in cows subjected to hyper‐early weaning management. However, levels of NEFA decreased as the postpartum period progressed. We concluded that cows who weaned calves hyper‐early have greater chances of increasing cyclicity and PRs.]]></description><identifier>ISSN: 0931-2439</identifier><identifier>EISSN: 1439-0396</identifier><identifier>DOI: 10.1111/jpn.13736</identifier><identifier>PMID: 35616028</identifier><language>eng</language><publisher>Germany: Wiley Subscription Services, Inc</publisher><subject>Age factors ; Animals ; Beef ; Beef cattle ; Body Weight ; bovine ; Calves ; Cattle ; Cattle Diseases ; Esterification ; Fatty acids ; Fatty Acids, Nonesterified ; Female ; metabolites ; non‐esterified fatty acids ; Overweight - veterinary ; Parturition ; Physical growth ; Postpartum ; Postpartum Period ; Pregnancy ; pregnancy rates ; Progesterone ; Reproduction ; Weaning</subject><ispartof>Journal of animal physiology and animal nutrition, 2023-03, Vol.107 (2), p.407-417</ispartof><rights>2022 Wiley‐VCH GmbH.</rights><rights>2022 Wiley-VCH GmbH.</rights><rights>2023 Wiley‐VCH GmbH.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3536-29ecc228924b09c24e536bd0aa87ede792f1f17d11ff56bb9cca253f012add883</citedby><cites>FETCH-LOGICAL-c3536-29ecc228924b09c24e536bd0aa87ede792f1f17d11ff56bb9cca253f012add883</cites><orcidid>0000-0003-1552-1944 ; 0000-0003-2119-6690 ; 0000-0002-6961-7100 ; 0000-0001-9858-1728 ; 0000-0002-8020-9845 ; 0000-0002-1435-6900 ; 0000-0001-7880-8198 ; 0000-0002-2382-418X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35616028$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Alforma, Antónia Mendes Paizano</creatorcontrib><creatorcontrib>Pereira, Gabriel Ribas</creatorcontrib><creatorcontrib>Rocha, Marcela Kuczynski</creatorcontrib><creatorcontrib>Teixeira, Odilene de Souza</creatorcontrib><creatorcontrib>Oliveira, Maria Carolina Muniz</creatorcontrib><creatorcontrib>Lima, Júlia Abud</creatorcontrib><creatorcontrib>Cumbe, Télis Adolfo</creatorcontrib><creatorcontrib>Barcellos, Júlio Otávio Jardim</creatorcontrib><title>Influence of weaning management at 30, 75 and 180 days of age on non‐esterified fatty acids and reproductive performance in beef cows</title><title>Journal of animal physiology and animal nutrition</title><addtitle>J Anim Physiol Anim Nutr (Berl)</addtitle><description><![CDATA[This study aimed to investigate the effect of age at weaning of calves on non‐esterified fatty acids (NEFA) and reproductive parameters of beef cows. Animals (n = 65) were randomly assigned to three treatments after calving: hyper‐early weaning (W30) at 32 ± 0.89 days, early weaning (W75) at 77 ± 0.95 days, and conventional weaning (W180) at 183 ± 0.82 days. Body weight (BW) and body condition score (BCS) were evaluated at parturition (AP) and at 30, 45, 64, 81, 100 and 115 days postpartum (dPP). Blood samples were collected to analyze NEFA levels and progesterone (P4) at 30, 45, 64 and 81 dPP. Higher BW and BCS were observed from 64 to 115 dPP in W30 cows than W180 ones (p < 0.05). Cows subjected to W30 condition had higher levels of NEFA at 30 dPP compared to 64 and 81 dPP (p < 0.05). We also observed that cows from W180 group showed decreased levels of NEFA at 30 dPP compared to 45 (p < 0.01) and 64 dPP (p < 0.05). The highest P4 level was observed at 64 dPP in W30 cows compared to W75 and W180 (p < 0.05). We also observed higher CR of W30 (86%) compared to W180 (47%) at 45 dPP (p < 0.05). 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Animals (n = 65) were randomly assigned to three treatments after calving: hyper‐early weaning (W30) at 32 ± 0.89 days, early weaning (W75) at 77 ± 0.95 days, and conventional weaning (W180) at 183 ± 0.82 days. Body weight (BW) and body condition score (BCS) were evaluated at parturition (AP) and at 30, 45, 64, 81, 100 and 115 days postpartum (dPP). Blood samples were collected to analyze NEFA levels and progesterone (P4) at 30, 45, 64 and 81 dPP. Higher BW and BCS were observed from 64 to 115 dPP in W30 cows than W180 ones (p < 0.05). Cows subjected to W30 condition had higher levels of NEFA at 30 dPP compared to 64 and 81 dPP (p < 0.05). We also observed that cows from W180 group showed decreased levels of NEFA at 30 dPP compared to 45 (p < 0.01) and 64 dPP (p < 0.05). The highest P4 level was observed at 64 dPP in W30 cows compared to W75 and W180 (p < 0.05). We also observed higher CR of W30 (86%) compared to W180 (47%) at 45 dPP (p < 0.05). The overall pregnancy rate (PR) was higher for W30 (95.5%) than W180 (73.9%). In addition, higher BW at calving and P4 levels at 30 dPP were positively correlated with the possibility of pregnancy (p < 0.05). Improvement in BW and BCS were observed in cows subjected to hyper‐early weaning management. However, levels of NEFA decreased as the postpartum period progressed. 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source Wiley-Blackwell Read & Publish Collection
subjects Age factors
Animals
Beef
Beef cattle
Body Weight
bovine
Calves
Cattle
Cattle Diseases
Esterification
Fatty acids
Fatty Acids, Nonesterified
Female
metabolites
non‐esterified fatty acids
Overweight - veterinary
Parturition
Physical growth
Postpartum
Postpartum Period
Pregnancy
pregnancy rates
Progesterone
Reproduction
Weaning
title Influence of weaning management at 30, 75 and 180 days of age on non‐esterified fatty acids and reproductive performance in beef cows
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