DI TRUYEN - GIONG VAT NUOI
NANG SUAT SINH SAN CUA CAC GIONG LON LANDRACE, YORKSHIRE, DUROC VA PIETRAIN DLfOC TRAO DOI GEN NUOI TAI TRUNG TAM NGHIEN CL/U LON THUY PHPONG
Trinh Hong SaiP' vd Pham Duy Phd'm' N g a y n h g n bai bao: 13/09/2019 - N g a y n h g n bai p h a n bifn: 28/09/2019
N g a y bai bao d u g c cha'p n h a n d a n g : 31/10/2019 T O M T A T
Nghien a i u d a n h gia ke't qua trao ddi n g u o n gen ciia dan lon Landrace, Yorkshire, Duroc va Pietrain giira ba co sd Trung tam Huan luyen va Phat trien Chan nudi Binh ThSng (BT), CTCP Thiic 3n Chan nudi Thai D u o n g (TD) va Trung tam Nghien cuu lpn Thuy P h u o n g CTP) nudi tai Trung tam Nghien eii'u lpn Thuy P h u o n g tir n a m 2016 deh 2019. Dan lgn nai trudc trao doi gen gom 830 nai, trong dd 400 nai Landrace (1.297 6), 300 nai Yorkshire (938 6), 100 nai Duroc (307 6) va 30 nai Pietrain (71 6). Dan hat n h a n d u p c lua chon sau trao doi gen gom 220 nai vdi 100 nai Landrace (400 6"), 80 nai Yorkshire (320 d"), 30 nai Duroc (120 6) va 10 nai Pietrain (40d).Ke't qua cho tha'y n a n g s u a t sinh san ciia dan lpn sau khi d u p c trao doi nguon gen tang len ro ret so vdi trudc, Cac cbi Heu so con cai siia/6, kboi lupng cai siia/d va so'con cai siia/nai/nam cua ca 4 giong deu tang hon tren 10%.
Dan nai Landrace, Yorkshire, Duroc va Pietrain sau khi d u p c trao doi nguon gen cd sd'eon cai siia/
6 lan lupt lit 12,41; 12,39; 11,79 va 10,80 con, khoi lupng cai sua/d la 80,32; 80,43; 74,32 va 71,47kg, sd con cai su'a/nai/nam lit 28,63; 28,65; 24,12 va 23,80 con, Tuoi phdi giong lan dau va tudi de Ida dau ciia ca 4 gio'ng on dinli, tud'i phoi gid'ng lira dau giao dpng tir 237,47 de'n 240,73 ngay, tudi de liia dau giao dpng td 351,99 den 355,39 ngay. Khoi lupng so sinh song/con, kboi lupng cai su'a/con va so lii'a d^/nai/nam ciia cac gio'ng d u p c giii on dinh.
Til' khoa: Nang suat sinh sdn, lgn Landrace, lgn Yorkshire, ton Duroc, lgn Pietrain.
ABSTRACT
The results of genetic exchange i n Landrace, Yorkshire, Duroc va Pietrain breeds in T h u y Phucmg pig research a n d d e v e l o p m e n t center
To evaluate the genetic exchange between three farms of Binh Thang livestock training and development center (BT), Thai Duong Sun Feeds JSC (TD) and Thuy Phuong pig research and development center (TP), four breeds including Landrace, Yorkshire, Duroc and Pietrain, which raised in Thuy Phuong Pig researcli and development center from 2016 to 2019. Before the genetic exchange, tliere were 830 sows: 400 Landrace sows (1,297 Jitters), 300 Yorkshire sows (938 litters), 100 Duroc sows (307 litters), and 30 Pietrain sows (71 litters). Nuclear herds were selected after genetic exchange included 220 sows with 100 Landrace sows (400 litters), 80 Yorkshire sows (320 litters), 30 Duroc sows (120 litters), and 10 Pietrain sows (40 litters). The results showed that the reproductive performance of the nuclear herd increased significantly in comparison with the previous herd. The lotal number weaned/litter (NW), the weaning weight/litter (Vi'W), and total number weaned pig/
sow/year (NWS) in four breeds increased more than 10%. The NW of Landrace, Yorkshire, Duroc, and Pietrain were 12.41, 12.39, 11.79,10.80 piglets, respectively. The WW of these breeds were 80,32, 80.43,74,32, and 71.47 kg/litter, and NWS were 28,63,28.65,24,12, and 23.80 piglets, respectively. Also, the age of first mating and the first farrowing age of all four breeds were stable. The age of first mating ranged from 237.47 to 240.73 d and the age of first farrowing varied from 351,99 to 355,39 d. Besides, tlie neonatal weight/head, and weaning weight/head and sow index of all breeds were stable.
Keywords: Reproductive performance, Landrace, Yorkshire. Duroc. and Pietrain
' Tmng tam Nghien ciiu lpn Thuy Phuong
• Tac gia lien he- TS Trjnh Hong Son, Trung tam nghien cuu lon Thuy Phuong, Vien Chan nuoi; DT 0912792872; Email:
sontrinhvcn^'gmad.com
KHKT Chdn nuoi so 255 - thdng 3 nam 2020
DI TRUYEN - G I O N G \
LDATVANB^
Trao ddi gen va tgo ket ndi di truyen gen giiia cac co so nudi giii dan hat nhan cd cimg ngudn gen vdi nhau nham nang cao chat Iugng dim hgt nban chung. Su dyng Hnh lgn dgc gid'ng cbung eho ta't ca cac co sd ciing lien ke't di truyen de danh gia so sanh vdi nhau thdng qua dye cbung, Trong nghien a i u nay.
ehudi lien ke't ngang dugc \av dyng giiia cac dim lgn hgt nhan gid'ng lgn Landrace (L), Yorkshire (Y), Duroc (Du) va Pietrain (Pi) eo Hem n3ng di truyen eao da duuc nbap khau ve ViOl Nam cua Trung tam NC lgn Thyy Phuang (TP), Trung tam N C i : l ' r C \ heo Binh Thang (BT), CTCP Thiic an Chan nudi Thai Duong (TD), tbdng qua vife cac trai gidng bat nban lya ehpn lgn dye ddng sinb san Idt nha't vil lya ehpn lpn dye ddng sinb trudng td't nba't de trao ddi nguon gen, tir dd, cac co sd nudi dan hgt nhan so trao ddi nhung lieu Hnh eua nbiing dye gidng tdt nha't va su dyng cho dan nai thuan.
Trong khudn kho thye hifn de tai "Nghien ciiu xay dyng chudi nhan ebo 4 gid'ng Ipn eao
san", ngudn gen giong lgn L, V. Du ^'^ ' dupe trao ddi gen thong qu.i thu imh nii^' ^
;iua ba ea so BT, TD vii TP \u..i pbat tu ' de nii\- ehung tdi danh gia 'Kci qua trao ddi ae na\- enung loi ucuui gm ^-^ • i - , .^ _„
ngudn gen giong lgn L, Y, Du va Pi tgi i^ &
tam nghien euu lpn Thuy Phucmg"-
1 VAT Lliu VA PHlTONG P H A P NBHliN CllfU2.1. Vat lifu, dia diem va thdi gian
Dim CO sd (dim tru'dc tr.io ddi gen), tdng so 830 nai: 400 nai L vdi 1.297 d, 300 nai Y voi 93^
o, 100 nai Du vdi 307 d va 30 nai Pi vm 71 o.
Dan hgt nhan dupc h.io ddi gen gorn 220 nai: 100 nai L \-di 400 d", 80 nai Y vdi^ 320 o, 30 nai Du vdi 120 d \ .i 10 nai Pi vdi 40 d.
Nghien cuu dupe Hen hiinb tai Trung tam NC lgn Thyy Phuang tu nam 2016 deh 2019, 2.2. Phuong phap
Til' dim eo sd gdm 830 nai tgi TP, lua ehgn 45 nai L, 45 nai Y, 15 nai Du vii 9 nai Pi tdt nba't, Lpn due dugc lua chpn tai 3 eg sd TP, BT vil TD; moi ca so lua cbgn 1 due L, 1 due Y, 1 dye Du vii 1 due Pi thanh Heb tg't nha't de ghep ddi giao phdi nhan thuan nhu sau:
Tinh 1 ^ due Thyy Phirong: I dye L, 1 dye V, I dye Du, 1 dye Pi Binh Thang' 1 dye L, 1 dye Y, 1 dye Du, 1 dye Pi Th.il Duong: 1 dye L, 1 dye Y, t dye Du, 1 dye Pi Tong cpng
L 15 nai 15 n.-ii 15 n.ii 45 nai
Y 15 nai 15 nai 15 nai 45 nai
Du 5 nai 5 nai 5 nai 15 nai
Pi 3 mil 3 nai 3 nai 9 nai
Dan CO sd sau khi dupc lua chgn, ghep
ddi giao pbdi nhan thuan trao ddi nguon gen, He'n hiinh kiem tra nang sua't vii lua chpn dan hat nhan 220 nai. Danb gia hieu qua Hao ddi ngudn gen cua dan nai L, Y, Du va Pi nudi tgi Trung tiim Nghien eiiu lpn Thuy Phuong.
Dan lgn thi nghiem duge cham sde nudi dudng theo quy trinli ky thuat cua Trung tam.
Dim lpn nai dugc nudi theo phuong thuc cdng nghiep, chuong trai dam bao veu cau thie't ke'
Soluonf '
ky thugt. Lgn nai hgu bi, nai chua nuoi trong ciii hen nen chudng be tdng; lpn nai de nudi con nudi tren ehuong long. Nai dupc chon lpc theo quy dinh cua Trung tam va duge thu Hnh nhan tao theo so do ghep phoi. Phuang thii'c phdi gidng la thy tinh nhan tao (phoi kep):
Hnh dieh dam bao pham chat, dat cac chi Heu ky thuat quy dinh oia Trung tam^Tbuc an cho eac ddi tugng lgn la thiic an hdn hgp hoim chinh. Bang thanh phan gia trj dinh dudng thlic an cho cae loai lpn:
Tl iinh duong trong thiic an cho lpn thi nghifm
~c"Pi 1 ME (Kcal) Ca(%) P (%) Lysin (7o) MvVQy^^^~
0,95 0,75 0,70 0,90
0,75 0,55 (1.50 0,70
1,15 0,70 0,60 0,75
KHKT Chdn nuoi so 255 - thdng 3 i -j 2020
DI TRUYEN - G I O N G VAT N U O I
So' con so sinb/6 (SCSS); so con sa sinh sdng/d (SCSSS); so con cai sira/d (SCCS); khdi lugng so sinh sdhg/o (KLSSS/d); khdi Iugng cai sita/6 (KLCS/d); khoi lugng so sinh sd'ng/
con (KLSSS); khoi lupng cai sira/cgn (KLCS);
tudi eai siia (ngay), tudi phdi gid'ng lan dau (TPGLD); hidi de Ian dau (TDLD); ehi sd Ilia de (lii'a/nai/nam), sd' eon eai siia/nai/nam (SCCS/nai/nam) dupc theo doi va xae dinh theo eac phuong phap thdng dung.
2.3. Xii Iy sd lifu
So lifu dugc pban Hch bang phan mem SAS 9.1 vdi cae tham so thd'ng ke Mean va SE.
So sanh cae gia tri hung binli bang phep so sanh Tukey.
3. KETQUAVATHAOLUAN
3.1. Nang suat sinh san ciia dan lpn nai Landrace dupc trao ddi gen
Tudi PGLD vEi tud'i DLD eiia dan lpn L trude khi trao ddi nguon gen va dan lpn dupc trao ddi ngudn gen sai kbac cd y nghia thdng ke, tuy nhien su chenh lech nay deu la nhd (239,19 va 237,47 ngay; 353,96 va 351,99 ngay).
Theo Trinli Hong Son vii ctv (2017), TPGLD va TDLD cua lgn L nhap hi Phap la 229,00 va 353,84 ngay; lpn L nhap td My la 245,70 va Bang 2. Nang suat sinh san dan
364,14 ngay. Nhu vav, dan L trong nghien o i u nay ed TPGLD mugn hon lgn L nhap tii Phap nhung sdm ban Ion L nhap tu My, TDLD tuong duang vdi lgn L nbap tii' Phap nhung sdm ban vdi Ipn nhgp tu' My.
Dan Ion nai L duge trao ddi gen ed nang sua't sinh san tang len ro rft: SCSS/o tang 7,35%; SCSSS/d tang 8,40%; SCCS/d tang 10,61%; KLSSS/d tang 5,65%; KLCS/o tang 9,79% va SCCS/nai/nam tang 11,49%. SCSSS/d tang Ien, dSn den KLSSS/eon bi giam (P<0,05).
Tudi eai sua dugc duy tri oil dinh (P>0,05), KLCS/eon va chi sd'liia de sai khac khdng ed y ngbia thd'ng ke.
Ke't qua cho thay SCSS/d, SCSSS/d va SCCS/6 eao bon ket qua ciia mpt so cdng bd:
Nguyen Van Thang (2017) ebo bie't lgn nai L cd SCSS/d, SCSSS/d va SCCS/d lan lugt Iii 10,74; 10,30 va 9,36 cgn. Lgn nai L ed SCSS/o va SCSSS/d lil 9,90 va 9,00 eon (Padel vii ctv, 2019);
la 11,16 va 10,14 con (Praew va etv, 2017). Theo Wahner va Brussow (2009) lgn nai L cd SCSSS/
d va SCCS/d la 11,2 va 10,2 eon. Tuong duong vdi SCSSS/d la 11,5 eon (Nguyen Binh Trudng vil etv, 2018), SCSSS/d vii SCCS/d lii 11,96 va 11,69 con (Nguyen Nggc Tbanh Yen va ctv, 2018),
lpn nai Landrace trao ddi gen
Chi tieu Tuoi PGLD (ngay) Tuoi DLD (ngay) SCSS/6 (con) SCSSS/o (con) KLSSS/eon (kg) KLSSS/6 (kg) SCCS/6 (con) KLCS/con (kg) KLCS/6 (kg) Tuoi cal sua (ngay) Chi so Ilia de (lua) SCCS/nai/nam (con)
Dan tnroc trao doi n
400 400 1297 1297 15589 1297 1297 14552 1297 1297 343 343
Mean±SE 239,19'±0,38 353,96^,35 12,51 ^±0,04 12,02''±0,05 1,46^,01 17,51'-±0,09 n,22''±0,04 6,53±0,D1 73,16''±0.27 23,59+0,08 2,29±0,01 25.68''±0,13
Dan duoc trao doi n
100 100 400 400 5212 400 400 4964 400 400 100 100
Mean±SE 237,47^±0,75 351,99''±0,69 13,43^,06 13,03^,06 1,43''±0,01 18,50'±0,09 12,41^,05 6,5(>±0,02 80,32'±0,25 23,39±0,10
2,31+0,01 28,63'±0,15
Chenh l^ch {%)
7,35 8,40 5,65 10,61 9,79
11,49 Ghi cliii: Cdc gui tri Mean trong cimg mot hdng mang cdc cltie cdi khdc nhau thi sai khdc cd ij ngliia thong ke (P<0,05)
KHKT Chan nuoi sd 255 - thdng 3 ndm 2020
DI TRUl E.N - GIOKt;
KLCS/6 cua lpn nai L tuong duong voi cong bo'cua Doan Phuong n i u y va ctv (2015) la 73,6kg; \'guyen Nj^oc Thanh Yen va ctv (2018) la 72,7kg, nhung cao hon so voi cong bo cua Ho Thanh Tham va ctv (2017) la 54,6kg;
Nguyen Van Thjng (2017) la 62,67kg.
3.2. Nang suat sinh san ctia dan lgn nai Yorkshire dugrc trao doi gen
Tuoi PGLD va TDLD ciia dan lon Y truoc khi trao dui nguon gen va dan lon duoc trao Bang 3. .^'Jng suat sinh san dai
doi ngucn gen sai khac khong co )• "S ' thong ke. Chiing to kha nang thuan >c "".^
aia dan Ion trudc khi trao doi nguon gen »' khi dupc trao doi nguon gen on dmh, quy hinh Chan nuoi khong thay doi ^ " ' ' ^ , Q trong nghien cuu na\-, co TPGLD va T mupn Ion Y nhap tir' Phap nhung som hon lpn Y nhap tii Mi: theo Trinh Hong Son va ctv (2017), TPGLD va TDLD ciia lpn Y nhap M phap la 222,75 vii .34s,41 ngay va lpn Y nliap tu Mi la 254,12 va 370,.SS ng.iy
1 lpn nai Yorkshire trao doi gen
Chl tieu Tuoi PGLD (ngav) TUOI DLD (ngay) SCSS/o (con) SCSSS/6 (a.n) KLSSS/eon (kg) Klsss„(kKI SCCS/6 (con) KLCS/con (kg) KLCS/6 (kg) Iuo.CS|ng.i\) Chiso|,Mde(lya) SCCS/nai/nim (con)
300
^
300 I I S 938 11190
938 938 10524
938 938 269 269
23S,62±0,76 3^3,35-11,74 12-IS ±0,115 ll,93''H-),()6 1,47^10,01 17,47*'±0,11 n,22''±0,06 6,53±0,01 73,18''±0,39 23,30*±0,09 2 28±O,01 25,64'±0,17
80
^
«n 320 320 4137 320 320 3964 320 320 80 80
238,58±0,73 352,14±0,66 13,32-^,07 12,93'±0,06 1.44''±0,01 18,48^,10 12,39^,06 6,51+0,02 80,43'^0,28 23,68'y:0,12 2,31 ±0,01 28,65''±0,15
(%)
6,73 8,39 5,78 10,43
9,91
11,74 Tuong tv dan Ipn nai L dupc trao doi
nguon gen, dan Ipn nai Y dupc trao doi nguon gen CO nang sua't sinh san dupc tang len ro ret. Cac chl lieu SCSS/6, SCSSS/o, KLSSS/6, SCCS/6^ KLCS/6 va SCCS/nai/nam tang lan lupt la 6,73; 8,39; 5,78; 10,43; 9,91 va 11,74%.
KLSSS/eon giam tir 1,47kg xuo'ng 1,44kg (P<0,05) nhung KLCS/con sai khac khong co y nghia thong ke (P>0,05). Chi solira de sai khac kh6ng CO y tho'ng ke.
Lpn nai Y nhap hi Dan Mach co SCSS/6 cao hon nhung SCSSS/6 va SCCS/6 tha'p hon, Nguyen Ngpc Thanh Yen va ctv (2018) lon nai Y l.i'n lupt c6 SCSS/6, SCSSS/6 va SCCS/
6 la 15,23; 12,49 va 11,66 con. Theo DanAvl (2017), nang sua't binh quan ciia 5 dan tot nhat trong ii? tho'ng Danbred tai Dan N4ach CO SCSSS 14,9-15,5 va SCCS 13,2-13,8 con. Mpt so ki-l qua ciing bo SCSS/6 va SCSSS/6 tha'p hon, Padel va ctv (2009) la 9,90 va 9,00 con;
Ngini-n Viin Thing (2017) li 10,83 va 10,32
con; Nguyen Binh Truong va ctv (2018) la 12,1 va 11,3 con.
Lpn nai Y co SCCS/o cao hon va KLCS/
con cao nen KLCS/6 cao hon mpt so nghien cull khac, theo Doan Phupng Thuy va ctv (2015) la 69,4kg; Nguyin Van ThSng (20)7) la 57,91kg; Ho Thanh Tham va civ (2017) la 56,9kg; Nguyen Ngoc Thanh Yen va ctv (2018) la 72,56kg; Nguyen Binh Truong v,i ctv (2018) luc 28 ngay tuoi la 70,9kg.
3.3, Nang suat sinh san cua dan lpn nai Duroc dupc trao doi gen
Dan lon Du truoc khi trao doi nguon gen va khi duoc trao doi nguon gen co TPGLD va TDLD sai khac kh6ng co y nghia thong ke Tu6i PGLD lan lupt la 240,73 va 238,57 va TDLD lan lupt la 355,39 va 352,70 Tuong duong voi ke't qua c6ng bo uia Trinh Hong Son va ctv (2017), Du nhap to Canada CO TPGLD vil TDLD la 235,46 va 354,"', „gj
ngay ngay
KHKT Chan imoi i - tlumg 3 nu;, 2(i2(i
DI TRUYEN - G I O N G VAT N U O I
Bang 4. Nang suat sinh san dan lpn nai Duroc trao ddi gen
Tuoi PGLD (ngay) Tuoi DLD (ngay) SCSS/6 (con) SCSSS/o (con) KLSSS/eon (kg) KLSSS/o (kg) SCCS/o (con) KLCS/eon (kg) KLCS/6 (kg) Tuoi CS (ngay) Chi soliJad^ (Ilia) SCCS/nai/nam
Dan tnrac trao doi n
100 100 307 307 3266 307 307 2999 307 307 84 84
Mean±SE 240,73±0,96 355,39±fl,87 ll,08'y],08 10,64''±0,09 1,59^,01 16,82^+0,16 9,77*'±0,10 6,88+0,02 67,04''±0,65 23,17+0,16 2,20±0,01 21,41''+0,26
D i n 30 30 120 120 1414 120 120 1311 120 120 30 30
n duoc trao doi Mean±SE 238,57±0,96 352,70±0,87 12,09M),08 11,7910,09 1,54''±0,01 I8,15'±0,14 10,93"+0,11 6,82±0,03 74,32^0,65 23,47+0,13 2,21±0,02 24,12^,32
Chenh I^ch
(%)
9,12 10,81 7,91 11,87 10,86
12,66
Chi Heu SCSS/d, SCSSS/d, KLSSS/d,
SCCS/d, KLCS/d va SCCS/nai/nam eiia dan nai Du duge trao doi nguon gen tang len rd rft (P<0,05): Ian lupt la 9,12; 10,81; 7,91; 11,87;
10,86 va 12,66%. SCSSS/d tang len 1,15 con/
d dan de'n KLSSS/eon ed xu hudng bi giam xudng, Hi' 1,59 xudng 1,54kg (P<0,05), Cac chi tieu KLCS/eon, tudi CS va chi sd' lua de sai khae khdng ed y nghia thd'ng ke.
Ke't qua nghien ciiu nay cao hon cdng bd' cua Doan Phuang Thuy va etv (2015) tren lgn Bang 5. Nang suat sinh san dan
Du nudi tgi Dabaco cd SCSS vii SCSSS la 10,30 va 9,33 eon; KLSSS/d va KLCS/d lit 14,20 va 68,79kg.
3.4. Nang suat sinh san cua dan lan nai Pietrain dugc trao ddi gen
Tucmg tu dan lgn Du, dan lgn Pi trude khi hao ddi ngudn gen va khi dugc trao ddi ngugn gen cd TPGLD va TDLD tu'cmg duong, su sai khac khdng cd y nghia thdng ke. Tud'i PGLD lan lupt la 239,40 va 239,20 ngay va TDLD lan lupt la 354,23 va 352,60 ngay.
lpn nai Pietrain trao ddi gen
Dan trirdc trao doiMean+SE
Chenh I^ch TPGLD (ngay)
(%)
TDLD (ngay) SCSS/6 (con) SCSSS/6' (con) KLSSS/eon (kg) KLSSS/o (kg) SCCS/o (con) KLCS/con (kg) KLCS/6 (kg) Tuoi CS (ngay) Chis6'lu'ade(lu'.
SCCS/nai/nam
239,40±1,83 354,23±1,82 10,90''±0,17 10,42''±0,1S 1,48±0,02 15,32''+0,24 9,59''±0,17 6,58±0,06 62,84i'+l,D7 23,14+0,34 2,17+0,02 20,93^+0,44
239,20+1,22 352,60±0,88 11,98^,22 n,65^±0,23 1,53±0,03 17,66^±0,30 10,80'±0,22 6,64±0,03 71,47^1,19 23,48±0,31 2,21±0,03 23,80'y3,67
9,91 11,80 15,27 12,62 13,73
13,71
Cac Chi Heu SCSS/6', SCSSS/6, KLSSS/6,
SCCS/6, KLCS/6 va SCCS/nai/nam ciia dan nai Pi dupc trao doi nguon gen tang Ien ro r?t (P<0,05); SCCS/6 tang tii 9,59 len 10,80 con (12,62%); KLCS/6 tang tii 62,84 len 71,47kg
(13,73%) va SCCS/nai/nam tang tii 20,93 len 23,80 con. Cac chi tieu KLSSS/eon, KLCS/con, tuoi CS va chi so liia de sai khac lch6ng co y ngliia thong ke.
KHKT Chan mini so 255 - Ihang 3 nam 2020
DI TRm EN - GIoKig -^
Theo Dd Ehic Lyc va ct\' (2013), lgn nai Pi cd kieu gen CC va CT khang Shcss ed cac chi Heu ve nang suat sinh san SCSSS/o, SCCS d.
KLSSS/eon. KLSSS'd. KLCS/con, KLCS d lan lugt lis 9,48 va 8,70 con; 7,34 vii 7.25 con; 1.42 vil l,4(ikg, 6,46 va 5,Slkg; 13,37 va I2,?^kg, 4fi..S2 va 42,67kg, deu tha'p bon Pi trao ddi gen nay tgi Thyy I'hunng
4. KET UIAN
Dim lgn nai L, Y, Du va Pi dupc trao ddi gen ed niing sua't sinh san cao vii tang len rd rft: SCCS/nai/nam lan lupt la 28,fi3, 2S,(i5:
24,12 va 23,80 eon; cae chi Heu SCCS, KLCS'd va SCCS/nai/n3m deu tang tren 10%.
TAI U | U THAM KHAO
1 DanAvl (2017). Danbred IntiTniUonal hltpV/wivw, Danbn.'dinl dk
2 Do Due Lyc, Ha Xuan Bg, Vu Dmh Tor vJ Djng Vu Binh (2013). Anh hmmg cua ki, n gen Halolhani' di-n nSng suat sinh san cua dan lyn hal nhan Pieirain khang Stress lrong dii'ii kien chuong km va chuong ho Hoi nghj Khoa hix Cong nghp Sinh hoc loan i]u6c 2013, ngay 27/9/2013. Trang: S98^I
3 Padel Tummaruk, Wichai Tanlasuparuk, Mongkol Tcchakumphu and Annop Kunavongkrit (2009) Effect of M.'aMin and outdoor climate on litter sire al birth in purebred Landrace and ^orkshirf sows in Thailand. J.
\'<.-t M.-d.Sa., 66(5)'477-82.
_ .n.iPhuila'^^
PraewThiengpimoLSupansaTapprean^Jn ^^^^^j Onarun (2017) Keproductu e pertomiana- ol p^ ^^^^^
and crossbred Undraee and Laigi' Whii-' -•'"- . under Thai commennal sw.re herd Tliamm.isal
Sci Tec, 22|2) 13-22 . Trinh H6ng Son. Ph^m Duy Pham. 0^"".."";*.(, „.,,,
va Trinh Quang TuMl-niZiM 1 ^•"^•'I"''""'"" " han UJ' ..,c gio'ng Mn Landrace. ""'orkshire va Du.^ ""Jt Phap, M) laCanada Tgpchi KHtN Ml''^•' • 46-50 , • Hd Thanh Thim. .Sgu.^n Minh Thong va Nguyc Thanh Nhan (2017). \.ing sual sinh «"'^'"'^ " ™ T nuoi Ml cong h- chan nu.M Tien Giang- Tap dn KHKl Chiin nuoi, 218. 19-25. . ..
Nguyen Van Thang (2017) N'.'ing suat smh san cua nai Landr.ice ^^a Yorkshire- T,p chi KHKT Oian ni.oi, 227.
28-33. ^ ^ . Doan Phuong Thuy, Ph^m Van Hoc Tran Xuan Manh, Luu Van Trang, Doan Van Soan, Vu D.nh Ton va D^ng Vii Binh (2015) NSng suat smh san va dinh huong chon lpc doi voi Ion nai Duroc, Landrace va Yorkshire tai c6ng ty TNHH lgn giong hai nhan Dabaco.Tgpchi KHIT, 13(8)' 1397-04.
Nguyen Binh Tmong, Vo Thj Thuy Trang, Nguyen Tran Phuoc Chien va Ph?m Huynh Khiel Tam (2018) Niing suat sinh san heo nai Landrace va Yorkshire trong ehiln nuoi nong ho t#i An Giang, Tgp chi KHKT Chan nuoi, 231 29-33,
Wahner M. and Brussow K.P (2009) Biological of fecundity of sows. Rerearch In Breeding, 3(2); 22-27.
Nguyen Ngpc Thanh Yen, Nguyen Huu Tinh va Trim Van Hao (2018). Ye'u to anh huong de'n nSng sua't sinh Siin 6 dan lpn Landrace va Yorkshire nhap tir Dan Mach. Tap chi KHKT Chan nuoi, 229' 34-39.
TANG KHOI Ll/ONG, TIEU TON THL/C AN VA HIEU QUA KINH TE CUA TO HQfP LON LAI GF399xGF24 6 CAC KHOI
HJ'ONG GIET MO KHAC NHAU
Hodng Vli Mai^, Nguyen Xudn Bd-, Le Ddc Thqo^, Tran Ngpc Long^, HdLe Quynh Clidu^ vd Le D'lnh Phiing' Ngciy n h a n bai bao: 02/01/2020 - Ngiiy n h a n bai p h a n bien: 29/01/2020
\ g i i \ bai b a o d u p c c h a p n h a n d a n g : 08/02/2020 T O M T A T
Xghien ciiu nay nham danh gia miic fang kho'i lugng, tieu ton thiic an va hi$u qua kmh tC'' trung chan nuoi to lipp lon lai GF399xGF24 khi d u o c giei m o d 3 miic khoi l u p n g 100, 110 va 120 kg Nghien cuu duoc tien hanh tren 136 con lgn lai GF399xGF24, ty 1^ duc:cai la 1:1. Thi nghi&m duoc ihiei kc'theo kieu ngau nhien hoan toan 1 n h a n to tren 12 don vi thi nghi&m (3 nghurn thiJc
\ 4 lan Uip l.ii). Dem vi thi nghiem la nhom lgn trong mgt 6 chudng. Lgn d u p c d u a vao thi nt;hi|m ' Tnnmg D.i\ hyt- Vinh
•Truong Dai hoc Ni'n.i; L^i^' HLH
• Tac pia litMi he. PGS IS 1 i l\nh i •
Tmail phung ledinh-hiuit •.-•.!•,: ,!i mg D?i hoc Nong Lam Huc^Dai hpc Hue; DI
KHKT Chdn nuoi .so 255 - thdng 3 ,
