Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight

Abstract Background Whey permeate is an effective lactose source for nursery pigs and the most benefits are obtained when pigs are at 7 to 11 kg BW. Altering weaning ages could cause different length of early-weaner phases until 7 kg BW and thus it would influence the dietary need of whey permeate d...

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Autores principales:	Ki Beom Jang, Marcos Elias Duarte, Jerry M. Purvis, Sung Woo Kim
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Growth performance Nursery pigs Weaning age Whey permeate Animal culture SF1-1100 Veterinary medicine SF600-1100
Acceso en línea:	https://doaj.org/article/29febb29388144fe8a8b9203b5b6bd0d
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spelling	oai:doaj.org-article:29febb29388144fe8a8b9203b5b6bd0d2021-11-21T12:33:16ZImpacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight10.1186/s40104-021-00637-42049-1891https://doaj.org/article/29febb29388144fe8a8b9203b5b6bd0d2021-11-01T00:00:00Zhttps://doi.org/10.1186/s40104-021-00637-4https://doaj.org/toc/2049-1891Abstract Background Whey permeate is an effective lactose source for nursery pigs and the most benefits are obtained when pigs are at 7 to 11 kg BW. Altering weaning ages could cause different length of early-weaner phases until 7 kg BW and thus it would influence the dietary need of whey permeate during 7 to 11 kg BW of pigs. This study aimed to evaluate if weaning ages would affect the dietary needs of whey permeate for optimum growth performance of pigs at 7 to 11 kg BW. Methods A total of 1,632 pigs were weaned at d 21 (d 21.2 ± 1.3) or d 25 (d 24.6 ± 1.1) after birth. All pigs had a common early-weaner feeds until they reached 7 kg BW. When pigs reached 7 kg BW within a weaning age group, they were allotted in a randomized complete block design (2 × 4 factorial). Two factors were weaning age groups (21 and 25 d of age) and varying whey permeate levels (7.50%, 11.25%, 15.00%, and 18.75%). Data were analyzed using the GLM and NLIN procedures of SAS for slope-ratio and broken-line analyses to determine the growth response to whey permeate and optimal daily whey permeate intake for the growth of the pigs weaned at different ages. Results Pigs weaned at 21 d of age had a common diet for 11 d to reach 7 kg BW whereas pigs weaned at 25 d of age needed 2 d. The G:F of pigs weaned at 25 d of age responded to increased daily whey permeate intake greater (P < 0.05) than pigs weaned at 21 d of age. Breakpoints were obtained (P < 0.05) at 88 and 60 g/d daily whey permeate intake or 17.0% and 14.4% of whey permeate for G:F of pigs weaned at 21 and 25 d of age, respectively. Conclusion Pigs weaned at an older age with a short early-weaner phase had a greater growth response to whey permeate intake compared with pigs weaned at a younger age with a long early-weaner phase. Altering weaning ages affected dietary needs of whey permeate for optimum growth performance of pigs from 7 to 11 kg BW.Ki Beom JangMarcos Elias DuarteJerry M. PurvisSung Woo KimBMCarticleGrowth performanceNursery pigsWeaning ageWhey permeateAnimal cultureSF1-1100Veterinary medicineSF600-1100ENJournal of Animal Science and Biotechnology, Vol 12, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Growth performance Nursery pigs Weaning age Whey permeate Animal culture SF1-1100 Veterinary medicine SF600-1100
spellingShingle	Growth performance Nursery pigs Weaning age Whey permeate Animal culture SF1-1100 Veterinary medicine SF600-1100 Ki Beom Jang Marcos Elias Duarte Jerry M. Purvis Sung Woo Kim Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight
description	Abstract Background Whey permeate is an effective lactose source for nursery pigs and the most benefits are obtained when pigs are at 7 to 11 kg BW. Altering weaning ages could cause different length of early-weaner phases until 7 kg BW and thus it would influence the dietary need of whey permeate during 7 to 11 kg BW of pigs. This study aimed to evaluate if weaning ages would affect the dietary needs of whey permeate for optimum growth performance of pigs at 7 to 11 kg BW. Methods A total of 1,632 pigs were weaned at d 21 (d 21.2 ± 1.3) or d 25 (d 24.6 ± 1.1) after birth. All pigs had a common early-weaner feeds until they reached 7 kg BW. When pigs reached 7 kg BW within a weaning age group, they were allotted in a randomized complete block design (2 × 4 factorial). Two factors were weaning age groups (21 and 25 d of age) and varying whey permeate levels (7.50%, 11.25%, 15.00%, and 18.75%). Data were analyzed using the GLM and NLIN procedures of SAS for slope-ratio and broken-line analyses to determine the growth response to whey permeate and optimal daily whey permeate intake for the growth of the pigs weaned at different ages. Results Pigs weaned at 21 d of age had a common diet for 11 d to reach 7 kg BW whereas pigs weaned at 25 d of age needed 2 d. The G:F of pigs weaned at 25 d of age responded to increased daily whey permeate intake greater (P < 0.05) than pigs weaned at 21 d of age. Breakpoints were obtained (P < 0.05) at 88 and 60 g/d daily whey permeate intake or 17.0% and 14.4% of whey permeate for G:F of pigs weaned at 21 and 25 d of age, respectively. Conclusion Pigs weaned at an older age with a short early-weaner phase had a greater growth response to whey permeate intake compared with pigs weaned at a younger age with a long early-weaner phase. Altering weaning ages affected dietary needs of whey permeate for optimum growth performance of pigs from 7 to 11 kg BW.
format	article
author	Ki Beom Jang Marcos Elias Duarte Jerry M. Purvis Sung Woo Kim
author_facet	Ki Beom Jang Marcos Elias Duarte Jerry M. Purvis Sung Woo Kim
author_sort	Ki Beom Jang
title	Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight
title_short	Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight
title_full	Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight
title_fullStr	Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight
title_full_unstemmed	Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight
title_sort	impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight
publisher	BMC
publishDate	2021
url	https://doaj.org/article/29febb29388144fe8a8b9203b5b6bd0d
work_keys_str_mv	AT kibeomjang impactsofweaningageondietaryneedsofwheypermeateforpigsat7to11kgbodyweight AT marcoseliasduarte impactsofweaningageondietaryneedsofwheypermeateforpigsat7to11kgbodyweight AT jerrympurvis impactsofweaningageondietaryneedsofwheypermeateforpigsat7to11kgbodyweight AT sungwookim impactsofweaningageondietaryneedsofwheypermeateforpigsat7to11kgbodyweight
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Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight

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