Cargando…
Utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in China: a descriptive study
BACKGROUND: This study was to investigate the utilization and reproductive performance of gilts in large-scale pig farms. Data of this descriptive study included 169,013 gilts of 1540 gilts’ batches on 105 large-scale pig farms from April 2020 to March 2021. According to the upper and lower 25th per...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8667386/ https://www.ncbi.nlm.nih.gov/pubmed/34903304 http://dx.doi.org/10.1186/s40813-021-00239-6 |
_version_ | 1784614378465656832 |
---|---|
author | Guan, Ran Gao, Wenchao Li, Peng Qiao, Xuwei Ren, Jing Song, Jian Li, Xiaowen |
author_facet | Guan, Ran Gao, Wenchao Li, Peng Qiao, Xuwei Ren, Jing Song, Jian Li, Xiaowen |
author_sort | Guan, Ran |
collection | PubMed |
description | BACKGROUND: This study was to investigate the utilization and reproductive performance of gilts in large-scale pig farms. Data of this descriptive study included 169,013 gilts of 1540 gilts’ batches on 105 large-scale pig farms from April 2020 to March 2021. According to the upper and lower 25th percentiles of piglets weaned per sow per year (PSY) during the research stage, pig farms were divided into three productivity groups: high-performing (HP), intermediate-performing (IP) and low-performing (LP) farms. On the basis of breeds, LP (LP-Total) farms was further divided into LP-breeding pig (LP-BP) and LP-commercial pig (LP-CP) groups. Average utilization, estrus and first mating data was collected from a total of 1540 gilts’ batches. The age-related factors (introduction age, age at first estrus and age at first mating) and litter production (total number of piglets, number of piglets born alive and number of weaned piglets, as well as their proportion distribution) among HP and LP groups were compared. The litter production in different age groups were also analyzed. RESULTS: The introduction age, mortality and culling rate of HP farms were lower compared with LP farms. Total number of piglets per litter, number of piglets born alive per litter and number of weaned piglets per litter in HP farms were significantly more than those of LP groups, respectively. The proportion distribution peaks of litter production in HP farms were shifted about two more than those in LP groups, respectively; and the proportion of low litter production (eight per litter or less) was lower than that in LP groups. The results of different age groups showed that total number of piglets per litter and number of piglets born alive per litter in 220–279 d were the most, while that of 370 d was the least. CONCLUSIONS: The overall utilization and reproductive performance of gilts in HP farms was better than those of LP farms. The difference in utilization was reflected in introduction source, culling rate and mortality. While the age at first estrus and first mating, breeds and litter production were the main differences for reproductive performance. |
format | Online Article Text |
id | pubmed-8667386 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-86673862021-12-13 Utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in China: a descriptive study Guan, Ran Gao, Wenchao Li, Peng Qiao, Xuwei Ren, Jing Song, Jian Li, Xiaowen Porcine Health Manag Research BACKGROUND: This study was to investigate the utilization and reproductive performance of gilts in large-scale pig farms. Data of this descriptive study included 169,013 gilts of 1540 gilts’ batches on 105 large-scale pig farms from April 2020 to March 2021. According to the upper and lower 25th percentiles of piglets weaned per sow per year (PSY) during the research stage, pig farms were divided into three productivity groups: high-performing (HP), intermediate-performing (IP) and low-performing (LP) farms. On the basis of breeds, LP (LP-Total) farms was further divided into LP-breeding pig (LP-BP) and LP-commercial pig (LP-CP) groups. Average utilization, estrus and first mating data was collected from a total of 1540 gilts’ batches. The age-related factors (introduction age, age at first estrus and age at first mating) and litter production (total number of piglets, number of piglets born alive and number of weaned piglets, as well as their proportion distribution) among HP and LP groups were compared. The litter production in different age groups were also analyzed. RESULTS: The introduction age, mortality and culling rate of HP farms were lower compared with LP farms. Total number of piglets per litter, number of piglets born alive per litter and number of weaned piglets per litter in HP farms were significantly more than those of LP groups, respectively. The proportion distribution peaks of litter production in HP farms were shifted about two more than those in LP groups, respectively; and the proportion of low litter production (eight per litter or less) was lower than that in LP groups. The results of different age groups showed that total number of piglets per litter and number of piglets born alive per litter in 220–279 d were the most, while that of 370 d was the least. CONCLUSIONS: The overall utilization and reproductive performance of gilts in HP farms was better than those of LP farms. The difference in utilization was reflected in introduction source, culling rate and mortality. While the age at first estrus and first mating, breeds and litter production were the main differences for reproductive performance. BioMed Central 2021-12-13 /pmc/articles/PMC8667386/ /pubmed/34903304 http://dx.doi.org/10.1186/s40813-021-00239-6 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Guan, Ran Gao, Wenchao Li, Peng Qiao, Xuwei Ren, Jing Song, Jian Li, Xiaowen Utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in China: a descriptive study |
title | Utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in China: a descriptive study |
title_full | Utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in China: a descriptive study |
title_fullStr | Utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in China: a descriptive study |
title_full_unstemmed | Utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in China: a descriptive study |
title_short | Utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in China: a descriptive study |
title_sort | utilization and reproductive performance of gilts in large-scale pig farming system with different production levels in china: a descriptive study |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8667386/ https://www.ncbi.nlm.nih.gov/pubmed/34903304 http://dx.doi.org/10.1186/s40813-021-00239-6 |
work_keys_str_mv | AT guanran utilizationandreproductiveperformanceofgiltsinlargescalepigfarmingsystemwithdifferentproductionlevelsinchinaadescriptivestudy AT gaowenchao utilizationandreproductiveperformanceofgiltsinlargescalepigfarmingsystemwithdifferentproductionlevelsinchinaadescriptivestudy AT lipeng utilizationandreproductiveperformanceofgiltsinlargescalepigfarmingsystemwithdifferentproductionlevelsinchinaadescriptivestudy AT qiaoxuwei utilizationandreproductiveperformanceofgiltsinlargescalepigfarmingsystemwithdifferentproductionlevelsinchinaadescriptivestudy AT renjing utilizationandreproductiveperformanceofgiltsinlargescalepigfarmingsystemwithdifferentproductionlevelsinchinaadescriptivestudy AT songjian utilizationandreproductiveperformanceofgiltsinlargescalepigfarmingsystemwithdifferentproductionlevelsinchinaadescriptivestudy AT lixiaowen utilizationandreproductiveperformanceofgiltsinlargescalepigfarmingsystemwithdifferentproductionlevelsinchinaadescriptivestudy |