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Potential Roles of NAC Transcription Factor in the Improvement of Stress Tolerance in Crops: a Review

Pham Cong Tuyen Anh, Chu Duc Ha, Le Thi Ngoc Quynh, Nguyen Huu Kien, Pham Phuong Thu, Nguyen Quoc Trung, Nguyen Duc Bach, Nguyen Van Loc

Date Received: 06-07-2020 / Date Accepted: 27-04-2021
NAC transcription factors have been regarded as one of the largest families of transcriptional regulators in plants. It has been demonstrated that NAC families played an important role in various biological processes in crops, particularly in abiotic stress response. This review summarizes the information of NAC families in numerous plant species. The functions of several NAC genes involving in the improvement of stress tolerance are discussed. Finally, some research orientations are proposed for further functional characterization of NAC gene for the crop breeding strategy adaptable to the climate change.
Estimating Heritability of Production Traits and Lean Meat Percentage in Stress Negative Piétrain Pigs

Ha Xuan Bo, Do Duc Luc, Dang Vu Binh

Date Received: 24-12-2013 / Date Accepted: 26-02-2014
This study was conducted to estimate heritability of growth traits andlean meat percentage of stress negative Piétrain pigs raised in Dong Hiep livestock farm, Hai Phong province and animal farm of Hanoi University of Agriculture. Sample sizes were 2093, 1380, 895, 494, 338 and 470 for body weight at birth, weaning,60 days, 7.5 months, average daily gain (ADG) and lean meat percentage respectively. Two softwares (Harvey andMTDFREML) were used to estimatethe heritability for each trait. Results showed that stress negative Piétrain pig had a high lean meat percentage(64.12%), however ADG was low (489.54 g per day) due to selection programme and small population. Heritabilitis of body weight at birth, weaning, 60 days, 7.5 months of age, ADG and lean meat percentage were 0.13, 0.12, 0.25, 0.23, 0.31 and 0.19 respectively. These values are consistent with previous studies, except the heritability of lean meat percentage relatively low.
Growth Performance, Carcass Characteristics and Meat Quality of VCN03 Boars

Trinh Hong Son, Nguyen Que Coi, Dinh Van Chinh

Date Received: 24-09-2013 / Date Accepted: 25-11-2013
This study was carried out in Tam Diep pig research stationofThuy Phuong National Pig Research from 2009 to 2013 to evaluate growth performance, carcass characteristics and meat quality of VCN03 boars between two generations (initialgeneration and first selection (G1)). Growth performance was measured on 205 boars (G0: 114, G1: 91). Carcass characteristics were conducted on 40 boars (G0: 20, G1: 20), meat quality was determined on 36 longissimus dorsimuscle samples (G0: 17, G1: 19). Average daily gain and lean meat percentage of selected boars were higher than those of G0(P<0.05). Average daily gain, backfat thickness, longissimus dorsimuscle thickness and lean meat percentage of G0and G1were 769.51 and 829.60g/day, 10.27 and 9.38mm, 46.84 and 48.80mm, 59.74 and 61.14% respectively. Killing out percentage and carcass yield werenot significantly different between two generations (P>0.05). Killing out percentage and carcass yield of G0and G1were 80.68 and 81.26%, 72.01 and 72.30% respectively. The pH of logissimus dorsimuscle at 45 minutes (6.01 and 6.28 for G0and G1respectively), pH (5.57 and 5.45) and L* (54.39 and 53.76) were in the range corresponding to the normal meat. Average daily gain and lean meat percentage of VCN03 boars after selection were improved without affecting carcass characteristics and meat quality.
Effects of Polymorphism of PIT1, H-FABP, PIK3C3 and CAST Genes on Carcass Traits and Meat Quality of Vietnamese Native Pig (Pot-bellied Pig)

Phan Thi Tuoi, Tran Xuan Manh, Nguyen Van Hung, Nguyen Thai Anh, Nguyen Hoang Thinh, Do Duc Luc

Date Received: 06-02-2023 / Date Accepted: 27-03-2023
The aims of study were to evaluate the effects of polymorphisms of PIT1/RasI, H-FABP/HinfI, PIK3C3/Hpy8IandCAST/HinfIgenesand gender on carcass traits and meat quality of Vietnamese native pot-bellied pigs raised at DABACO Breeding Pig Company, Phu Tho Province, Vietnam. At 8 months of age, 23pigs (12 gilts and 11 barrows) were slaughtered to measure carcass traits (live body weight, hot carcass weight, killingout percentage, dress carcass weight, carcass yield, carcass length, backfat thickness at the vertebra prominensC7 and the last lumbar vertebra L5) and meat quality (pH value of longissimus dorsimuscleat 45 minutes (pH45) and 24 hours post mortem(pH24), drip loss percentage, cooking loss percentage, L* (lightness), a* (redness) và b* (yellowness), shear force at 24h post mortem). The polymorphisms of PIT1/RasI, H-FABP/HinfI, PIK3C3/Hpy8IandCAST/HinfIgenes were identified by PCR-RFLP technique. The results indicated that backfat thickness and L* of longissimus dorsimusclewere higherthan those in barrows(P<0.05). The polymorphisms of PIT1/RasI, H-FABP/HinfI, PIK3C3/Hpy8IandCAST/HinfIgenes did not affect carcass traits and meat quality of the nativepigs.
Growth Performance and Carcass Yield of Crossbred Pigs Born from Duroc Boars Mated with Duroc×(Landrace×Yorkshire) Sows Survived African Swine Fever

Do Duc Luc, Nguyen Thi Xuan Hong, Ha Xuan Bo, Nguyen Thai Anh, Nguyen Thi Vinh, Pham Kim Dang, Trinh Hong Son

Date Received: 21-11-2023 / Date Accepted: 26-01-2024
The study was conducted at a pig farm in Van Lam district, Hung Yen province from August 2021 to November 2022 to evaluate the growth performance and carcass traits of D×(DLY) fattening pigs born from Duroc×(Landrace×Yorkshire) survivor sows infected African swine fever virus and Duroc boars. A total of 110 pigs (61 females and 49 barrows) were recorded from birth to the end of the experiment at 223.36±14.78 (± SD) days of age. Pig was individually tattooed at birth and ear tag at weaning. The body weight of each individual was weighed at birth and weaning. Back fat thickness (BFT), longgissimus muscle depth, loinmuscle area, intramuscular fat (IMF) and lean meat percentage (LMP) were determined by ultrasound on live pigs at the same time of weighing body weight at the end of the experiment. The results showed that the finishing weight (132.40kg), average daily gain (640.55g) in barrows tended to be higher (P = 0.074 and P = 0.057) than those in female pigs (126.60kg and 608.75g). BFT, IMF in barrows were significantly higher than female pigs (P <0.01) but LMP was lower (P <0.001) and were 16.49 and 13.41mm; 2.54 and 2.19%; 57.63 and 61.03% respectively. D×(DLY) can be used as fattening pigs with carcass traits similar to normal pigs but with lower weight gain.
Growth Rate, Carcass and Meat Quality of Crossbreds between F1(LandracexYorkshire) Sows and (PiétrainxDuroc) Boars with Piétrain ReHal Genetic Difference

Pham Thi Dao, Nguyen Van Thang, Vu Dinh Ton, Do Duc Luc, Dang Vu Binh

Date Received: 22-01-2013 / Date Accepted: 18-03-2013
The study was carried out at 3 pig farms in Hai Dương and Hưng Yên from March 2011 to January 2013 to evaluate growth rate and carcass quality of F1(Landrace x Yorkshire) (F1(L x Y)) sows mated with F1(Piétrain x Duroc) (PiDu) boars with Pietrain ReHal genetic constitution (25, 50 và 50%: PiDu25, PiDu50, PiDu75). The results showed that these crossbreds obtained high growth rates and low feed conversion ratio (FCR) (829.42 g/day and 2.31 kg/kg; 797.78 g/day and 2.33 kg/kg; 765.79 g/day and 2.38 kg feed/kg weight gain, respectively). Lean meat percentage of PiDu25 x F1(L x Y), PiDu50 x F1(L x Y) và PiDu75 x F1(L x Y) were 54.66, 56.32 and 59.97 %, respectively. Lean meat percentage of PiDu75 x F1(L x Y) was higher than that of PiDu25 x F1(L x Y) and PiDu50 x F1(L x Y). The meat quality traits in terms of pH, colour drip loss, and firmness of 3 crossbreds were normal. Crude protein of musculus longissimus dorsi of crossbreds was 21.53, 22.18 and 22.63%. The research suggests that using crossbed boars PiDu25, PiDu50, PiDu75 to mate with F1(L x Y) sows helps to obtain high performance in pig farms.
Growth Performance and Meat Quality of [Duroc × (Landrace × Yorkshire)] Pigs Fed Diets Supplemented with Herbal Product

Nguyen Cong Oanh, Cu Thi Thien Thi, Dam Thi Dung

Date Received: 19-03-2025 / Date Published: 21-03-2025
This study was carried out to evaluate the dietary addition of herbal MIX product (Stemona tuberosa Lour, Platycodon grandiflorum, Codonopsis pilosula, Corium stomachichum Galli, Hovenia dulcis Thunb, Maltum, and Crataegus pinnatifida Bunge) on growth performance, meat quality, and chemical compositions of crossbred Duroc × (Landrace × Yorkshire) [D(LY)] pig meat. A total of 360 D(LY) pigs with initial body weight (BW) of 36.7 ± 0.17kg, were used in a 12-week experiment. Pigs were randomly divided in 4 experimental diets according to BW and sex, each consisting 90 pigs and 3 replicate pens. The experimental diets consisted of a DC diet (basal diet), a TN1 diet (DC + 0.1% MIX), a TN2 diet (DC + 0.2% MIX), and a TN3 diet (DC + 0.3% MIX). The pigs were fed a 2-period feeding program consisting of grower (0-6 weeks) and finisher (7-12 weeks). The results showed that in comparision with DC diet, pigs fed a diet supplemented with 0.1% MIX improved final BW (kg/pig), average daily gain (g/pig/day), and feed conversion ratio (kg/kg) (P <0.05). Lean meat percentage increase and backfat thickness like shear force decrease were observed in pigs fed diets with increasing MIX levels (P <0.05). Lipid content of meat decreased in pigs fed a diet with 0.3% MIX while within diets with MIX from 0.2% level downwards lowered cholesterol content of pork (P <0.05). The results showed that supplementing MIX in pig diet improved average daily gain, and feed conversion ratio (0.1% MIX), and enhanced meat quality (from 0.1 % MIX forwards).
DOI: https://doi.org/10.1234/2hsf4k29
Replacement of Corn with Broken Rice in the Diet of Growing-Finishing Pigs

Nguyen Huu Tho, Nguyen The Tuong, Tran Xuan Manh, Ton That Son

Date Received: 05-03-2019 / Date Accepted: 12-04-2019
A study was carried out to evaluate the effect replacement of cornwith broken rice in the diet on the performance of growing-finishing pigs.Two hundred forty cross-bred D (LY) growing- finishing pigs (68 days old)were alloted intoa completely randomized design of fourtreatments with 3 replicates of 20 pigs each.Treatments consisted of graded levels of broken rice (0, 25, 50 and 75%) to orreplace cornin the diet. Results showedthatwhen using broken rice as substitutefor75% corn in the diet, the body weight, average weight gain (kg/head/day), the dressing percentage, carcasspercetage, eye muscle areaand leanmeat percetage,andmeat shear forcewere higher in comparison with25% and 50% of broken rice replacements and100% corn. The use of broken rice as substitue for corndid not affect feed intakeand feed conversion ratio (kg feed/kg body weight gain), carcass length, backfatthickness, pH45 ', pH24h, meatcolor, rate of water lossduring storageand feed cost per1 kg weight gain. It is therefore suggested thatbroken rice can replace up to75% corn in the diet of growing - finishing pigs.
Effect of Halothane Genotype, Gender on Carcass Characteristics and Meat Quality of Stress Negative Piétrain Pigs

Ha Xuan Bo, Do Duc Luc, Dang Vu Binh

Date Received: 10-09-2013 / Date Accepted: 25-11-2013
This study was carried out at the animal farm of Hanoi University of Agriculture from August 2012 to April 2013 to evaluate effects of halothane genotype (CC and CT) and gender (intact males and gilts) on carcass characteristics and meat quality of Piétrain stress negative pigs. The backfat thickness, depth of longissimus dorsi muscle and lean meat percentage at 7.5 months were collected from 83 pigs (31 females and 52 intact males). Data on carcass performance were collected from 43 pigs (28 females and 15 intact males). The organoleptic quality of longissimus dorsi muscle was determined from 35 samples (19 females and 16 intact males). For meat chemical compositions, 24 samples (14 females and 10 intact males) were analyzed. Slaughter weight (88.75 kg), carcass weight (58.40 kg), eye muscle area (57.54 cm²), backfat thickness (9.26 mm) and depth of longissimus dorsi muscle (58.01 mm) of gilts were higher than those of intact males (81.29 kg, 52.77 kg, 51.04 cm², 8.01 mm and 52.76 mm). Killing out percentage, carcass percentage and carcass length were similar between gilts and intact males (P>0.05). The pH of longissimus dorsi muscle at 24 hours post mortem between gilts (5.34) and boars (5.50) were significantly different (P<0.001). Gilts had more lipid content than intact males (P<0.01). Halothane genotype did not affect carcass characteristics, meat quality and meat chemical composition (P>0.05). The results indicate that Piétrain stress negative pigs had high carcass percentage and good meat quality. Individuals with halothane genotype CC and CT can be choosen for the breeding without affecting the carcass performance and meat quality. Carcass percentage and pH45 of longissimus dorsi muscle of gilts were higher than those of intact boars.
SinhtrưởngvàphẩmchấttinhdịchcủalợnđựcPiétrainkhángstress thuầnvàđựclaivớiDuroc

Do Duc Luc, Ha Xuan Bo, Farnir Frederic, Pascal Leroy, Dang Vu Binh

Date Received: 19-02-2013 / Date Accepted: 24-04-2013
Nghiên cứu được tiến hành nhằm đánh giá ảnh hưởng của các thành phần di truyền Piétrain kháng stress khác nhau và mùa vụ đến sinh trưởng của lợn đực hậu bị và phẩm chất tinh dịch của chúng. Có 5 nhóm thành phần di truyền được đánh giá, bao gồm: PiDu25, PiDu50, PiDu75, PiCC và PiCT. Kết quả cho thấy, nhóm di truyền ảnh hưởng đến các chỉ tiêu sinh trưởng và phẩm chất tinh dịch. Các nhóm đực lai PiDu25, Pu50 và PiDu75 có tốc độ sinh trưởng cao hơn nhưng tỷ lệ nạc thấp hơn so với Piétrain kháng stress, ngoại trừ PiDu75. PiDu25, PiDu50 và PiCC có phẩm chất tinh dịch tốt. Mùa vụ ảnh hưởng đến hầu hết các tính trạng phẩm chất tinh dịch của đực Piétrain kháng stress thuần chủng cũng như các nhóm đực lai khác. Nồng độ tinh dịch ở mùa hè và mùa thu thấp nhất, cao hơn về mùa đông và mùa xuân. Nên sử dụng các đực lai giữa Piétrain và Durroc, đặc biệt là PiDu75 làm con đực cuối cùng.

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