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Johannsen JC, Sørensen MT, Theil PK, Bruun TS, Farmer C, Feyera T. Optimal protein concentration in diets for sows during the transition period. J Anim Sci 2024; 102:skae082. [PMID: 38517473 PMCID: PMC11017514 DOI: 10.1093/jas/skae082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/21/2024] [Indexed: 03/23/2024] Open
Abstract
The aim of the present study was to determine the optimal concentration of dietary protein required in transition diets for multiparous sows that enhance the farrowing process, colostrum production, and subsequent lactation performance. Forty-eight multiparous sows were allotted to one of six dietary treatments according to body weight (290 ± 3 kg) and parity (3.8 ± 0.2) from day 108 of gestation until 24 h after the onset of farrowing. The diets were isoenergetic and contained increasing concentrations of dietary protein (expressed as standardized ileal digestible [SID] Lys) and were supplied at a daily feed supply of 3.8 kg. On day 108 of gestation and days 2, 7, 14, 21, and 28 of lactation, body weight, and back fat thickness were recorded, and blood was sampled on day 108 of gestation, at the onset of farrowing, and days 3, 10, 17, and 24 of lactation from the sows for analysis of plasma metabolites. On day 115 of gestation, urine, and feces were collected for nitrogen (N) balance. The number of liveborn and stillborn piglets and time of birth were recorded and blood from every fourth piglet was sampled at birth for blood gas analysis. Piglets were weighed individually from birth until weaning, to estimate the colostrum and milk yield of the sows. Colostrum and milk samples were collected, and their compositions were determined. On days 3 and 28 of lactation, sows were injected with deuterium oxide to estimate body composition. The N utilization was maximized when the concentration of SID Lys in the transition diet was 6.06 g/kg (P < 0.01). When urinary concentrations of urea were expressed relative to creatinine, the relative concentration of urea remained low until a dietary concentration of 6.08 g SID Lys/kg, above which the relative concentration of urea increased (P < 0.01). Stillbirth rate increased linearly with increasing SID Lys concentration in the transition diet (P < 0.001), thus the concentration of SID Lys should be kept as low as possible without impairing sow performance excessively. A carry-over effect on milk yield was observed, showing that a dietary SID Lys concentration of 5.79 g/kg during transition optimized milk production at an average yield of 13.5 kg/d (P = 0.04). Increasing loss of body fat in lactation was observed with increasing SID Lys concentration in the transition diet (P = 0.03). In conclusion, the transition diet of multiparous sows should contain 5.79 g SID Lys/kg when fed 3.8 kg/d (13.0 MJ ME/kg), for a total SID Lys intake of 22 g/d.
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Affiliation(s)
- Jakob C Johannsen
- Department of Animal and Veterinary Sciences, Aarhus University, Campus Viborg, DK-8830 Tjele, Denmark
| | - Martin T Sørensen
- Department of Animal and Veterinary Sciences, Aarhus University, Campus Viborg, DK-8830 Tjele, Denmark
| | - Peter K Theil
- Department of Animal and Veterinary Sciences, Aarhus University, Campus Viborg, DK-8830 Tjele, Denmark
| | | | - Chantal Farmer
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC, CanadaJ1M 0C8
| | - Takele Feyera
- Department of Animal and Veterinary Sciences, Aarhus University, Campus Viborg, DK-8830 Tjele, Denmark
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Zhuo Y, Zou X, Wang Y, Jiang X, Sun M, Xu S, Lin Y, Hua L, Li J, Feng B, Fang Z, Che L, Wu D. Nutritional values of cottonseed meal from different sources fed to gestating and non-pregnant sows. J Anim Sci 2023; 101:skad118. [PMID: 37085272 PMCID: PMC10199790 DOI: 10.1093/jas/skad118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/20/2023] [Indexed: 04/23/2023] Open
Abstract
This study set out to determine the apparent total tract digestibility (ATTD) of the nutrients and energy in six cottonseed meal (CSM) feedstuffs fed to pregnant and non-pregnant sows. The six types of CSM were: two expelled CSMs with crude protein (CP) levels of 40.67% and 44.64%, and four solvent-extracted CSMs with CP levels of 45.18%, 51.16%, 56.44%, and 59.63%. Fourteen gestating sows (at the fourth parity with body weights of 220.6 ± 18.4 kg at days 30 of gestation) and 14 non-pregnant sows (after the third parity with body weights of 219 ± 14.6 kg) were assigned to a replicated 7 × 3 Youden square design with seven diets and three periods. The seven diets included an entirely corn-based diet and six diets each containing 20.0% of the six CSMs tested. Each period included a 5-d acclimation to the experimental diets, followed by a 5-d period during which urine and feces were collected. Significant differences were found among the six CSM diets, regardless of reproductive stage, regarding 1) the ATTD of neutral detergent fiber (NDF) (P < 0.05) and 2) the ATTD of dry matter (DM), organic matter (OM), and CP and the gross energy (GE) (P < 0.01). Non-pregnant sows had a greater ATTD of OM and CP (P < 0.01) compared with gestating sows. The digestible energy (DE) and metabolizable energy (ME) of the six CSM samples ranged from 12.48 to 17.15 MJ/kg and 11.35 to 15.88 MJ/kg, respectively, for non-pregnant sows, and from 12.86 to 16.41 MJ/kg and 12.43 to 14.72 MJ/kg, respectively, for gestating sows. However, the DE, ME, and ME:DE ratios of each CSM were similar between gestating and non-pregnant sows. DE and ME were negatively correlated with NDF and ADF, respectively, but were positively corrected with CP level (P < 0.01). Collectively, the DE, ME, and nutrient digestibility of CSM varied greatly according to the chemical compositions, and CSMs with higher protein and lower fiber levels had greater DE and ME levels.
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Affiliation(s)
- Yong Zhuo
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Xiangyang Zou
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Ya Wang
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Xuemei Jiang
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Mengmeng Sun
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Shengyu Xu
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Yan Lin
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Lun Hua
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Jian Li
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Bin Feng
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Zhengfeng Fang
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Lianqiang Che
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - De Wu
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China and Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
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Huang S, Wu D, Hao X, Nie J, Huang Z, Ma S, Chen Y, Chen S, Wu J, Sun J, Ao H, Gao B, Tan C. Dietary fiber supplementation during the last 50 days of gestation improves the farrowing performance of gilts by modulating insulin sensitivity, gut microbiota, and placental function. J Anim Sci 2023; 101:skad021. [PMID: 36634095 PMCID: PMC9912709 DOI: 10.1093/jas/skad021] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 01/11/2023] [Indexed: 01/13/2023] Open
Abstract
Our previous study found dietary konjac flour (KF) supplementation could improve insulin sensitivity and reproductive performance of sows, but its high price limits its application in actual production. This study aimed to investigate the effects of supplementation of a cheaper combined dietary fiber (CDF, using bamboo shoots fiber and alginate fiber to partially replace KF) from the last 50 days of gestation to parturition on farrowing performance, insulin sensitivity, gut microbiota, and placental function of gilts. Specifically, a total of 135 pregnant gilts with a similar farrowing time were blocked by backfat thickness and body weight on day 65 of gestation (G65d) and assigned to 1 of the 3 dietary treatment groups (n = 45 per group): basal diet (CON), basal diet supplemented with 2% KF or 2% CDF (CDF containing 15% KF, 60% bamboo shoots fiber, and 25% alginate fiber), respectively. The litter performance, insulin sensitivity and glucose tolerance parameters, placental vessel density, and short-chain fatty acids (SCFAs) levels in feces were assessed. The gut microbiota population in gilts during gestation was also assessed by 16S rDNA gene sequencing. Compared with CON, both KF and CDF treatments not only increased the piglet birth weight (P < 0.05) and piglet vitality (P < 0.01) but also decreased the proportion of piglets with birth weight ≤ 1.2 kg (P < 0.01) and increased the proportion of piglets with birth weight ≥ 1.5 kg (P < 0.01). In addition, KF or CDF supplementation reduced fasting blood insulin level (P < 0.05), homeostasis model assessment-insulin resistance (P < 0.05), serum hemoglobin A1c (P < 0.05), and the level of advanced glycation end products (P < 0.05) at G110d, and increased the placental vascular density (P < 0.05) at farrowing. Meanwhile, KF or CDF supplementation increased microbial diversity (P < 0.05) and SCFAs levels (P < 0.05) in feces at G110d. Notably, the production cost per live-born piglet was lower in CDF group (¥ 36.1) than KF group (¥ 41.3). Overall, KF or CDF supplementation from G65d to farrowing could improve the farrowing performance of gilts possibly by improving insulin sensitivity, regulating gut microbiota and metabolites, and increasing placental vascular density, with higher economic benefits and a similar effect for CDF vs. KF, suggesting the potential of CDF as a cheaper alternative to KF in actual production.
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Affiliation(s)
- Shuangbo Huang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Deyuan Wu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Xiangyu Hao
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jiawei Nie
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Zihao Huang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Shuo Ma
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yiling Chen
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Shengxing Chen
- Joinsha Animal Health Products (XIAMEN) Co., Ltd., Xiamen, Fujian 361000, China
| | - Jianyao Wu
- Joinsha Animal Health Products (XIAMEN) Co., Ltd., Xiamen, Fujian 361000, China
| | - Jihui Sun
- Joinsha Animal Health Products (XIAMEN) Co., Ltd., Xiamen, Fujian 361000, China
| | - Huasun Ao
- Joinsha Animal Health Products (XIAMEN) Co., Ltd., Xiamen, Fujian 361000, China
| | - Binghui Gao
- Joinsha Animal Health Products (XIAMEN) Co., Ltd., Xiamen, Fujian 361000, China
| | - Chengquan Tan
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
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Wang K, Zou X, Guo L, Huang L, Wang Y, Yang P, Huang L, Ma X, Zhuo Y, Che L, Xu S, Hua L, Li J, Feng B, Wu F, Fang Z, Zhao X, Jiang X, Lin Y, Wu D. The nutritive value of soybean meal from different sources for sows during mid- and late gestation. J Anim Sci 2022; 100:skac298. [PMID: 36104004 PMCID: PMC9667969 DOI: 10.1093/jas/skac298] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/13/2022] [Indexed: 09/16/2023] Open
Abstract
A precise understanding of the nutritive value of soybean meal (SBM) for pregnant sow is required for accurate feeding. Hence, we evaluated the nutritive value of 11 SBM samples from different sources for sows during mid and late gestation. In total, 24 mid-gestating sows (parity three; 230.3 ± 12.0 kg on day 37 of gestation) and 24 late-gestating sows (parity three; 238.8 ± 20.9 kg on day 72 of gestation) were assigned to a replicated 12 × 3 Youden square design with 12 diets and 3 periods. The 12 diets included a corn-based diet and 11 diets containing 25.50% SBMs from different sources. After 5-d adaptation, urine and feces were collected for 5 d. Although the chemical characteristics of SBM varied between samples, no differences were observed in digestible energy (DE), metabolizable energy (ME), apparent total tract digestibility (ATTD) of dry matter, gross energy, crude fiber, and neutral detergent fiber values in SBMs fed to both animal groups. However, de-hulled SBM 4 from Brazil displayed greater ATTD for nitrogen (N) in late-gestating sows (P < 0.05); animals displayed significantly (P < 0.01) greater ME, ME:DE ratio, and N net utilization values when compared with mid-gestating sows. The chemical composition of SBMs can be used to predict DE and ME values. In conclusion, ME, ME:DE ratio, and N net utilization SBM values for late-gestating sows were greater than in mid-gestating sows. Therefore, we should consider differences in ME values for SBMs when formulating diets for sows in mid and late gestation periods.
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Affiliation(s)
- Ke Wang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Xiangyang Zou
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Lei Guo
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Long Huang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Ya Wang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Pu Yang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Liansu Huang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Xiangyuan Ma
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Yong Zhuo
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Lianqiang Che
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Shengyu Xu
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Lun Hua
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Jian Li
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Bin Feng
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Fali Wu
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Zhengfeng Fang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Xilun Zhao
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Xuemei Jiang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - Yan Lin
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
| | - De Wu
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, and Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, People’s Republic of China
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Yang M, Hua L, Mao Z, Lin Y, Xu S, Li J, Jiang X, Wu D, Zhuo Y, Huang J. Effects of Dietary Fiber, Crude Protein Level, and Gestation Stage on the Nitrogen Utilization of Multiparous Gestating Sows. Animals (Basel) 2022; 12:ani12121543. [PMID: 35739881 PMCID: PMC9219437 DOI: 10.3390/ani12121543] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/05/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022] Open
Abstract
To investigate the effects of dietary fiber (DF), crude protein (CP) level, and gestation stage on nitrogen utilization, 28 Landrace-Yorkshire cross gestating sows at parity two were randomly divided into four dietary treatments with seven duplicates of one pig with a repeated-measures design. The diets comprised one with normal crude protein (CP) of 13.3%, one with a low CP diet of 10.1%, and two diets, one with dietary fiber (DF) supplementation of inulin and cellulose at the ratio of 1:1 and one without DF. The total litter size, litter size alive, and newborn birthweight of piglets did not differ between treatment groups. Sows that received high DF levels had greater nitrogen output in feces, lower urinary nitrogen, and increased nitrogen retention. Sows that received a low CP diet had reduced nitrogen excretion in feces and urine, lower nitrogen retention, and an unchanged nitrogen retention ratio. Sows at the late stage of gestation on days 95 to 98 had lower nitrogen excretion in urine and greater nitrogen retention than in the early stage of gestation on days 35 to 38, associated with a significant decrease in serum amino acids in late gestation. Maternal protein deposition was increased by high DF, decreased by low CP, and lower in late gestation compared with early gestation. Collectively, DF improved nitrogen utilization by decreasing urine nitrogen output, and nitrogen utilization increased as gestation advanced.
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Affiliation(s)
- Min Yang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
- Pet Nutrition and Health Research Center, Chengdu Agricultural College, Chengdu 611130, China
| | - Lun Hua
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
| | - Zhengyu Mao
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
| | - Yan Lin
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
| | - Shengyu Xu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
| | - Jian Li
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
| | - Xuemei Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
| | - De Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
| | - Yong Zhuo
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
- Correspondence: (Y.Z.); (J.H.)
| | - Jiankui Huang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.Y.); (L.H.); (Z.M.); (Y.L.); (S.X.); (J.L.); (X.J.); (D.W.)
- Guangxi Shangda Technology, Co., Ltd., Guangxi Research Center for Nutrition and Engineering Technology of Breeding Swine, Nanning 530105, China
- Correspondence: (Y.Z.); (J.H.)
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Fu L, Jiang Y, Wang C, Mei M, Zhou Z, Jiang Y, Song H, Ding X. A Genome-Wide Association Study on Feed Efficiency Related Traits in Landrace Pigs. Front Genet 2020; 11:692. [PMID: 32719719 PMCID: PMC7350416 DOI: 10.3389/fgene.2020.00692] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 06/05/2020] [Indexed: 12/27/2022] Open
Abstract
Feed efficiency (FE) traits in pigs are of utmost economic importance. Genetic improvement of FE related traits in pigs might significantly reduce production cost and energy consumption. Hence, our study aimed at identifying SNPs and candidate genes associated with FE related traits, including feed conversion ratio (FCR), average daily gain (ADG), average daily feed intake (ADFI), and residual feed intake (RFI). A genome-wide association study (GWAS) was performed for the four FE related traits in 296 Landrace pigs genotyped with PorcineSNP50 BeadChip. Two different single-trait methods, single SNP linear model GWAS (LM-GWAS) and single-step GWAS (ssGWAS), were implemented. Our results showed that the two methods showed high consistency with respect to SNP identification. A total of 32 common significant SNPs associated with the four FE related traits were identified. Bioinformatics analysis revealed eight common QTL regions, of which three QTL regions related to ADFI and RFI traits were overlapped. Gene ontology analysis revealed six common candidate genes (PRELID2, GPER1, PDX1, TEX2, PLCL2, ICAM2) relevant for the four FE related traits. These genes are involved in the processes of fat synthesis and decomposition, lipid transport process, insulin metabolism, among others. Our results provide, new insights into the genetic mechanisms and candidate function genes of FE related traits in pigs. However, further investigations to validate these results are warranted.
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Affiliation(s)
- Lu Fu
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yao Jiang
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Chonglong Wang
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Mengran Mei
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Ziwen Zhou
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yifan Jiang
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hailiang Song
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiangdong Ding
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
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