L / i d S r i i > U c j N o VA I t i U C A N C H A N N U O I
Da lya chpn duge cac ndng dp tdi iru ciia chat khu NaBH^, axit HCl, lo'i im hda cac dieu kipn do phd' phan rich, xay dimg dugc cac dudng chuan cho khoang tuye'n tinh dinh lugng As va Hg.
Tir cac thdng so danh gia phuong phap bao gdm gidi han phat hien (LOD), gidi han djnh lupng (LOQ) da lya chpn dugc gia hi djnh lugng cua As la 500 pg/kg va Hg la 50 pg/kg dd'i vdi TA chan nudi.
Cac gia tri dg chum, dp thu hdi khi dinh lugng As va Hg deu dat rieu chuan cua AOAC.
Trong sd' cac mau TAHH cho lgn, ga, bo, ngo nghien, cam ggo da khao sat deu khdng phat hipn ton du Hg. Chi cd 1 mau TAHH cho bo la ed As, nhimg vdi ham lupng tha'p va nim trong gidi han cho phep ve lieu chuan TA chan nudi hipn hanh.
Thie't bi va dieu kipn ky thuat cua Phdng Thi nghipm TT Khoa Chan nudi, Hpc vipn Nong nghipp Viet Nam hoan toan dap iing du'pc yeu cau dinh lu'png As va Hg trong TA chan nuoi.
TAI UEU THAM KHAO
1. Allteeh (2015). https-//globaLalltech-com/sites/defauH/
files/doeumenls/201S%20heavj'metai%20survev%20 A3-pdf.
2. Nguyen Van Ki?m (2009) Anh hirang cua thwucs 3n cong nghiep den su tang trong, chai liriTng, ton du kim loai nang va khang sinh trong chan nuoi lon th|t. Tap chi KHPT, 7)4): 476-S3.
3 Dinh Ngpc Lgi (2011). Danh gia 6 nhiem mgt so kim ioai nang (Cd, As, Pb, Hg) trong moi truong va thiJc an chan nuoi tai huy?n Kim Bang - Ha Nam. Lugn v.ln Thac sy Vong nghiep Tnrong Dai hpc Nong Nghiep Ha Npi 4 Pham Lu^n (2006). Phirong phap phan h'ch pho nguyen
tu, NXB Dai hpc Quoir gia. Ha Npi, trang 7>9 5 Ha Thi Thai Minh (2016)- Xac dinh ham lirpng Pb, Hg,
As trong mpt so mau nuoc mat va dai 6 khu vyc mo than khe sim bing phuong phap quang pho ha'p thp nguyen tu va phat xa nguyen tu Luan vSn thgc sy h6a hoc, Trudng Dai hpc Khoa hpc Tp nhien 6 Quy chuan Vi?t Nam (2009), {QCVNOl-13: 2009/
BNNPTNT: https://lhuvienphapluat,vn/TCVN/Nong- nghiep/QCVN-01-13-2009-BNNPTNT-lhuc-an-cho-be- va-bo-thi 1-901784,aspx
7 Ta Thi Thao va Nguyin Thj Thu Hing (2014)- Nghien ciru xac dinh dong fhtri cac dgng asen vo co va hCru co bang phuong phap pho ha'p thp nguyen tu su dpng ky thugt hydrua hoa (HVG - AAS) kei hgp vol thuat quan hoi quy da bien. Tap chi phan tich Hoa, Ly va Sinh hpc, 19(2/2014): 61-65-
8 Nguyin Thi Phmmg Thuy (2012)- Phan tich cac dgng Asen trong mau moi tnrong bang phucmg phap pho ha'p thy nguyen tu kef hpp vol chemometrics, Luan vftn Thac sy Hoa hpc, Truong dgi hpc Klioa hpc Ty nhien.
BO SUNG PROBIOTIC VAO KHAU PHAN AN GA DE TRlfNG THl/ONG PHAM
Dgng Tln'iy Nlmng'* vd Dqng Vu Hoc^
N g a y n h a n bai bao: 20/08/2019 - N g a y n h g n bai p h a n bien: 20/09/2019 N g a y bai bao d u g c ehap n h g n dang: 30/09/2019
T O M T A T
Thi nghipm d u a c hen h a n h n h a m d a n h gia hieu qua ciia \ i e c bo sung cac che'pham probiotic vao khau phan an ga de t n i n g t h u o n g p h a m Novogen Brown nuoi tai Cong ty TNHH Dau tu va Phat trien Chan nuoi Gia cong, thupc Tap doan Dabaco. Tong s6'1.2S0ga Novogen Brown de tru'ng thuong pham o 35 tuan tuoi d u p e p h a n ngau nhien vao 3 16: doi chung (DC), thi nghiem 1 (TNI) va TN2. Ga dupc an khau p h a n co so, bo sung che'pham Baymix Grobig BS \'6i lieu lOOg/taii thiic an cho TNI va Probiohc Sahjm vdi lieu lOOg/ta'n thdc an cho TN2, Ket qua cho tha'y: Ca hai che pham probiotic la Baymix Grobig va Saturn d u p c b d sung vao thirc an cho ga ga Novogen - Brown de tning thucmg pham deu co tac d y n g tang ty le nuoi song, ty ie de, nang sua't tning, ty le t n i n g ' Hpc vi^n Nong nghiep Vi|t Nam
- Vi?n Chan nuoi
' Tac gia lien li?: TS. Dgng Vu Hoa, Pho Truong Bp mon Kinh teva He thong char Tii Liem, Ha Ngi; Email- hoadangvu@gmail com; DT: 0976203572
l^LJi"r r^Lx I 2020
thucmg pham, t\' le long do va mau sac long do. Trong do, che'pham Saturn nianc l.u b"-'" "
kinh te.
Tir khoa: Gd de trung tbinnig phdm. probiotic. Ba\/mix Grobig BS, Saturn.
ABSTRACT
Probiohc supplements into the diets of Novogen Brown commercial laying hens The experiment was conducted to evaluate the effectiveness of the addition oi pTobio P paradons to the diets ot Novogen Brown commercial laying hens raised in Livt.'--UKk Develop and Investment Ltd Company Dabaco Group. A total of 1,2,S(1 \ o \ ogen Brown commercial layi g hens at 35 \\eeks of age were randomly assigned to 3 lots: control (C), treatment I (Tl) a" ' The hens were feeding the base diet, supplemented with Bavmix Grobig BS a dose of lOOg/
feed for Tl and Saturn at a dose of 100 g/ton of feed for T2. "1116 results showed that both P'''"^'° ^^
preparations, Baymix Grobig and Saturn, that were added to the diets of commercial laying ens increased the survival rate, laying rate, egg yield, commercial egg yield, yolk ratio and co or, particular, Saturn preparations reached economic efficiency.
Keywords: C(i»n«tTCi(j/ laying hen. probiotic. Baymtx Grobig BS, Saturn.
I-BATVANOI
Nhung nam gan day, su dyng probioric, prebioHc, axil hiiu co hogc cae chiet xual thao mgc thay the'cho vipc bd sung khang sinh vao thlic 3n ehan nudi da ngay cang phat trien, Tung va Petrigrew (2(K)6) danh gia rang thay the' khang sinh bang cac ehe' pham probioric nham cai thipn nang sua't va sue khoe vgl nudi de bd sung vao thuc an chan nudi la mpt hong cac giai phap hiiu hipu. Nhieu nghien ciiu da chiing minh tac dyng cd loi cua probiotic ve sue khde va nang suat sinh Irudng cua vat nudi (Papatsiros va etv, 2009). Dgc bipt, probioric cd tae dyng rich eye doi vdi qua trinh tieu hda bang each lang hoal dgng cua cae enzyme vi sinh vgt hong probiotic; tang kha nang mien dich bang each kich thich he thd'ng mien dich va tai sinh cita niem mac rupl (Roselli va etv, 2005). Nhieu che' pham probioric da dugc san xual va bd sung vao khau phan cua nhieu logi vat nudi khac nhau d nhieu nudc,
Nhieu nghien ciiu su dyng eac che' pham probiotic thay the khang sinh trong san xua't thuc an chan nudi lgn con da dugc thue hien d nude ta: Dd Thi Nga va Dang Thuy Nhung (2013) da nghien ciiu bd sung che' pham Bacillus enzyme. Le Thi Men va Truong Chi Son (2014) da nghien cuu bd sung Sorizyme. Le Till Men (2014), Tran Qudc Viet va cU' (2015) da nghien ciru bd sung che pham gom cac ehung vi khuan khac nhau, Bui Van Dinh va Dang
Thuy Nhung (2015) da ngliien citu bo sung che pham Kulacric. Phgm Kim Dang va Tran Hipp (2016) da tiiir nghipm bd sung che'pham Bacilluss pro. Dang Thuy Nhung va Doan Van Soan (2017) da nghien cim bd sung che'pham Fubon {vi khuan Bacillus subtilis).
Tuy nhien, nhung nghien ciiu lien quan den lac dung cua viec bo sung probioric trong san xuat chan nudi ga cdng nghiep cua nudc la cdn kha han che'. Tran Qud'c Viel va ctv (2000) da danh gia anh hudng ciia viec bd sung probioric vao khau phan thiic an va nudc ud'ng de'n sinh tru'dng va hieu qua su dung thue an ciia ga thit. Phiing Diep Lai (2011) da thuc hien len men cac chiing vi sinh probioric va ling dung trong ehan nudi ga. Nghien cuu nay nliam danh gia hieu qua ciia viec bo sung probilories thdng qua hai che' pham Baymix Grobig BS va Probiotic Saturn vao kha'u phan an ciia ga de Novogen Brov^'n thucmg pham tgi Cdng ty Dau tu va Phat trien Chan nuoi gia cdng Dabaco Lac Ve - Tien Du - Bac Ninh.
2. VAT LI|U VA PHimNG PHAP NGHIIN ClJfU 2.1. Vat lieu
- Ga Novogen Brown de triing thuong pham 45-49 tuan tuoi.
- Che' pham probioric Baymix Grobig BS do Cdng ly Bayer san xua't va phan phd'i
- Che pham probioric Saturn do Cdne tv TNHH Cdng nghp Sinh hgc Sahim Cdn Minh - Trung Qud'c san xua't.
36
KHKTChdn nuoi .so 254 - thdng 2 nam Vnoi u c AN CHANNUOl l/ONGDAIHQCPHAJ MKY 2020-2025
bd tri theo phucmg oan toan, thyc hipn va Phat trien Chan doan Dabaco, Lgc LT thang 8/2018 den n Brown de tning joi cd sii'c khde va hudng, phan ngau (DC), TNI va TN2, ng so ga hong moi chuong thlic nhd't eon. Cac long nudi 3ng chudng kin cd e'u sang hpn gid va lg mang an, mang
• day long. Ga dugc 1 theo quy hinh ky io Cdng ly Co phan
phan dinh dudng leu lrong bang 1.
ian an co sd (KPCS).
bd sung ehe pham u lu'gng 100 g/lah
KPCS bd sung che' , lOOg/lah thuc an.
Bang 1. Thanh phan dinh dirang cua TAHH Cie chi deu dinh dirone
Nang lupng trao do Prolein tho (%) Xo tho (%) Lipid tho (%) Canxi (Ca) {%]
Photpho (P)(%) i (kcal/kg)
DC 2-600 16,50 3,17 3,80 3,90 0,56
TNI 2-60O 16,50 3,18 3,80 3,95 0,60
TN2 2 600 16,50 3,18 3,80 3,95 0,60
Thdi gian lhi nghiem: rii' thang 8/2018 den thang 1/2019.
Cac chi rieu theo ddi gom: ly Ip nudi sd'ng, ty le Ioai thai, khoi lugng ga, ty Ip d^, nang sua't tning; cac chi rieu ve chat lugng tning:
khdi lugng tning, chi sd'hinh dang, khdi lugng long trang, khoi Iupng long dd, khd'i lugng vd, mau sac long dd, ehi so long dd, chi so long trang, don vj Haugh; lugng thue an thu nhan, rieu td'n va chi phi thiic an/10 qua triing,
Phuang phap xu ly sd' lipu: So lipu Ihu thap dugc xu ly thd'ng ke bing Excel 2013 va Minitab 16.
3. K £ T OUii VA THAO LUAN
3.1. Ty Ip nuoi sdng
Ket thlic 9 tuan theo ddi, ty Ip nudi sd'ng cua dan ga lrong cie Id DC, TNI va TN2 hrang ung la 98,20; 98,44 va 98,59, Ty Ip nudi sdhg cao chirng td dieu kien chan nudi va cham sdc cua Cdng ly la kha lot Ld TN2 cd ty Ip nudi sd'ng cao nha't, chenh lech so vdi Id TNI la 0,15% va Id DC la 0,39%.
Bang 2. Ty I^ nuoi song
nuoi song100,00
(%)
99,77 99,53 99,38 99,14 98,83 98,59 98,36 98,20
So con dau (con) 1,280 1-277 1.274 1.272 1269 1266 1.264 1.262 1-260
TNI
ky Ty e nuoi song So con dau
(•!;,)
100,00 99.77 99,53 99,38 99,14 98,91 98,75 98,59 98,44
(con) L280 1-277 1-274 1,272 1,270 1,268 1,266 1,264 1262
TN2 ky Ty 1^ nuoi song
100,00
(%)
99,77 99,53 99,38 99,22 99,06 98,91 98,75 98,59
^ A
JOURNAL OF SCIENCE ( PHAM VAN DONG UNIVEK Addnsi :509,PlianDWl Td :S425S382538e Fax ;e4255382492S Emaa . qll(h@p(lu.edu.i WetMite httpi/Zwwwpduj
-PHATTRlfNBEN\
D I N H D U O N G \ ' A T H U C .'\.^ '
4.3. T y Ip d e , n a n g s u a t t n i n g , k h d i I u g n g va c h a t l u g n g t n i n g
T y 1 | d e khi b i t d a u thi n g h i p m ciia cac 16 D C , T N I va T N 2 h i o n g irng la 86,98; 86,95 v a 86,96%. S a u 9 t u a n t h e o d o i , tv Ip d e c u a cac Id na\' t u c m g i i n g la 85,25; 86,62 va S6,75°o Ty Ip d e cac Id D C va T \ d e u g i a m d a n d o ga N o v o g e n B r o w n cd ty Ip d e d i n h c a o Iiic 30 t u a n t u d i . T r u n g b i n h h o n g 9 t u a n d e , tv Ip d e c u a 16 T \ 2 dgt cao n h a t (86,75"o), c h e n h Ipch s o v d i 16 T N I la O.^^o, so vdi Id D C la 0.58".., c h e n h Ipch giiia Id T N I va D C la 0,45''o.
N a n g s u a t t n i n g c g n g rich luv sau 9 t u a n t h e o ddi ciia cac Id DC, T \ 1 va T N 2 t u o n g l i n g la 54,24: 54.58 va 54,65 q u a / m a i . D o ty Ip d e t r u n g b i n h o i a Id T N 2 d a l c a o nha't va tha'p nha't la Id D C , n e n n a n g sua't t n i n g rich tuy ciia Id T N 2 c u n g d g t cao n h a t , c a o b a n Id TNII la 0,7 q u a / m a i , c a o h o n Id D C la 0,36 q u a / m a i ; Id T N I cao h o n D C la 0,29 q u a / m a i .
Bang 3. Ty Ip d e va n a n g suat t n i n g tich luy
Bang 4. Khoi I u p n g t r i m g »M^ . m t S E ^ p / ^
Tylgde(%) NST tich luy fqua/mai) hioi DC TNI TN2 DC TNI TN2 35 86,98 86,95 8 6 , % 6,09 6,09 6,09 36 86,88 86,86 86,88 12,17 12,17 12,17 37 86,42 86,71 86,76 18.22 18 24 18,24 38 8^.38 86,7f. 86,89 24,27 24,31 24,32 39 Sb.U 86,67 86,79 30,30 30,38 30,40 40 t<?i <)7 86,51 86,64 36,32 36,43 36,46 41 S^i.t-^ 86,41 86.64 42,31 42.48 42,53 42 S\»l 86,36 86,66 48,32 48,53 48,60 43 8.=;,25 86,32 86,57 54,29 54,57 54,66 TB 86,17 86,62 86.75
Ty Ip t n i n g k h d n g dgt tieu c h u a n t h u o n g p h a m t r u n g b i n h t r o n g eae t u a n t h e o d o i d D C , T \ 1 \'a T N 2 rijong i m g la 2,32; 2,30 v a 2,28%.
N h u vay, ty le t n i n g k h d n g d a l rieu c h u a n t h u o n g p h a m cua Id D C la e a o nha't, e a o h o n 0,02% so v d i Id T N I va 0,04% s o v d i Id T N 2 .
Khdi l u o n g t n i n g d D C v a T N d e u t a n g d a n t h e o l u a n t u d i (Bang 4) la p h i i h g p v d i q u y luat cua ga d e t n i n g . Khi bat d a u thi n g h i e m , tai cac h i a n tudi va t r u n g b i n h e h u n g , khd'i I u g n g t n i n g c u a ca 3 Id la t u o n g d u o n g n h a u , cac k h a e bipt d e u k h o n g ed y n g h i a t h d n g k e (P>0.05)
DC(n=--H» I N 1 J!:301_T N_2in!|!^
•2 8?-0 •
••2, "4*0 -IS
•,-;V0 4l : ^ , 3 8 62,96±0.3b 63.1I±0,41 63.16211,52 ' ^ ' ' ^ ! l ' ' ^ ' 1.1,32.0,37 ^3,4^_-0 46 ^3,45*0,37
i>3,75±0,4 63,67±0,42 63,98±0,52 63,98rl>,32 64,20±0,35 (>4,27£0.42 h4 58±0,4^ c l ^4-0 54 64,76±0,38 (vl,Sriil74
63,76±0,42 64,04±0,53 64,34ifl,45 64,66±0,47 65,02±0,35
^ 63:71±o!38 63.7f^£__6^^9mL.
Bang 5. Mpt so chi tieu ve' chat l u p n g t n i n g Chi tieu P C ^ ^ r N U ^ ^ o T l ^ * ^ ^ KL tning (g) ^ T H ^ I .4'X-M149 65,38±0,57 Chisohinhdgnj; 1,30±0,01 1,2S±0,01 1,28±0,01 TLl6ngdo(%) 23,21b±0,01 24,02a±0,02 24,04a±0,01 TLl6ngtr.ing(%) 66,22±0,01 66,34±0,02 66,38±0,01 TLv6(%) 11,32±0,01 11,33±0,01 11,34±0,01 Chi so long do 0,39±0,01 0,38±0,01 0,39±0,01 Maul6ngd6(R) 13,71b±0,11 13,75a±0,ll 13,82a±0,09 Chi so long tring 0,10±0,01 0,11±0,01 0,11±0,01 Don vj Haugh 89,72 89,82 88,43 Giti clni: gid tri trung binb tren cimg hdng mang cdc chir a, b, c kiwc nhau Id sai klidc c6 y ngbia thong ke (P<0,05) H a u he't cac chi rieu c h a t l u g n g t n i n g ciia DC, T N I va T N 2 la t u o n g d u a n g n h a u . K h a c bipl cd y n g h i a t h o n g k e chi xua't h i e n d cac chi rieu ty Ip long d d va m a u sac l o n g d d . Ld D C cd ly le l o n g d o v a m a u sac l o n g d o tha'p nha't (P<0,05), k h d n g ed s u k h a c b i e l cd y n g h i a thd'ng k e v e eac chi rieu n a y giiia T N I va T N 2 (P>0,05).
N h u vay, b d s u n g h a i ehe' p h a m p r o b i o t i c la Baymix G r o b i g BS h o a c S a t u r n d a t a n g d u g e ty Ip d e , n a n g sua't t n i n g va c h a t l u o n g t r u n g . Ve d i e m nay, Z h a n g va K i m (2013) cijng d a cho r a n g : b o s u n g 0 , 0 1 % p r o b i o t i c v a o k h a u p h a n ga m a i d e l a m t a n g d u g c san l u o n g t n i n g va cai thipn d u g e chat l u p n g trimg, P r a d o v a ctv (2016) e h o bie't: sau 5 va 6 t h a n g b o s u n g probioric v a o k h a u p h a n ga m a i d e , ty \Q (^^ jjgf 80,6% s o vdi 75,0% k h d n g b d s u n g 3.3. T h l i c a n t h u n h a n v a t i e u tdn t h i i c a n
L u g n g t h l i c a n t h u n h a n ( r u n g b i n h d cac Id D C va T N d a o d g n g 114,83-114^90 e /
38 KHKT Chdn nuoi so 254 - thdng 2 nam '>o ?n
I ^ u O h i C v/A 1 n U C A N C H A N N U O I
con/ngay va tuong duong vdi Tieu chuah an ciia hang la 115 g/con/ngay (Bang 6). Lugng thuc an rieu thy cua ga Novogen Brovwi ndi tren khdng khac bipl nhieu so vdi ga Hisex Brown hong giai dogn de dinh cao la 116 g/
cpn/ngay (Nguyen Thj Mai va ctv, 2(X)9) hogc
ga Lohmarm Brown trong thdi ky de tning la 115-122 g/con/ngay (Hoang Thanh va ct\', 2009). Tieu tdn thiic an/10 tning ciia DC, TNI va TN2 tuong ung la 1,33; 1,32 va 1,32kg.
Chenh lech ve miie tieu ton thiic an/10 tning cua TXI va TN2 so vdi DC la 0,01kg- Bang 6. Thiic an thu nhan va tieu tdn thiic an
T u a n t u o i 35 36 37 38 39 40 41 42 43 TB
T h u c a n t h u n h a n ( g / c o n / r DC
114,51 114,71 114,53 114,93 115,11 114,67 115,18 114,90 114,93 114,83
TNI 114,59 114,65 114,65 114,94 114,89 114,70 115,08 114,69 114,81 114,78
'Rav) TN2 114,54 114.56 114,91 114,87 114,99 114,-=15 114,78 114,61 114.57 114,71
Tiei DC 1,32 1,32 1,32 1,33 1,33 1,33 1,34 1,34 1,34 1,33
11 t o n t h t r c a n / l O q u TNI 1,32 1,32 1,32 1,32 1,32 1,33 1,33 1,33 1,33 1,32
1,32 1,32 1,32 1,32 1,32 1,33 1,33 1,32 1,32 1.32
3.5. Hi^u qua ciia vipc sii dung che phaim probiotic
Cac 16 TNI va TN2 cd so ga sau thi nghipm, ty Ip de, nang sua't trirng, ty Ip tning thucmg pham cao hon do dd gia tri ga sau thi nghipm va tien thu ban triing cao hon so vdi DC, Mgc dll mii'C lieu thy thii'c an tha'p han.
nhung do bd sung them che' pham probioric nen do gia thanh 1 kg thuc an ciia Id TNI va TN2 cao hem DC la 200 d/kg, vi vgy chi phi ve thuc an cua TNI va TN2 cao hon DC. Chenh lech thu chi cua TN2 cao hon DC la 460.000d, lrong khi dd chenh lech thu chi ciia TNI lai riia'p hon DC la 321.000d-
Bing 7. Hi?u qua ciia vipc bo sung che phaim probiotic
C h i t i e u S o g a CO m j t d a u ky (con)
So'ga CO m^il cuoi ky (con) Gia ga g i o n g (1.000 d/con) Gia trj ga giong s a u thi nghi&m (l.OOOd) (1) Nang s u a ! t n i n g ( q u a / m a i ) S 6 ' l n x n g t h u ( q u a ) Ty 1? I n m g thirong p h a m (%) So'tning t h u o n g p h a m (qua) Gia t r u n g thircmg p h a m (d) Tien thu b a n t n m g (1,000 d) (2) Tien ga giong b i t d a u thi nghi&m (l.OOOd) (3) Gia thiJc 5n (d/kg)
Thlic a n tieu thy (g/con/ngay) T&ig so' thiJc a n tieu t h y (kg)
Tong tien t h u c a n h e u ton t r o n g thi n g h i e m (l.OOOd) (4) Tong chi: di^n niroc, t h u o c thil y. n h a n c o n g , kha'u h a o (1 OOOd) (5) l o n g Ihu t r o n g thi nghi&m (l.OOOd) (1+2)
l o n g chi trong thi nghi&m (l.OOOd) (3+4+5) .Chenh lech t h u - chi [l.OOOd)
251-400 54,29 68-867 97,68 67.269 2-200 147.992 256.000 8-000 114,83 9-176,7 73 414 28-512 399.392 357-926 41-466
252-000 54,57 69.304 97,7 67-710
2.200 148-962 256,000 8-200 114,78 9-183,6 75.306 28 512 400 962 359,817 41,145
252 400 54,66 69,473 97,72 67 889 2.200 149.356 256.000 8 200 114,71 9 185,2 75,318 28 512 401,756 359.830 4 1 9 2 6
trufT r"!.^^. 7 2020
L / i i ^ n L>X'v./.>vj
4. KH LUAN
B6 sung cac che'pham probioric Bavmix Grobig hoac Sahim vdi lieu 100 g tan thiie an cho ga Novogen-Brown de tning thucmg pham da cd tac dyng tang t\' Ip nudi sd'ng, t\- Ip de, nang sual tning, ty le tning thuong pham, t\' Ip Idng dd, mau sac long do va mang lgi hipu qua kinh te'hem.
Ldi CAM ON
Chimg toi xin giri ldi cdm an sdu siic ldi 'HiS.
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1- P h a m K i m D a n g v a Tran H i ^ p (2016)- A n h h u o n g c u a vice tw' s u n g che p h a m Bacillus p r o de'n mpt so' chi tieu kinh l e k v thugt o i a k m s m h t n r o n g . Tgp chi KHKT Ch.ln nuoi. 205 37-42
2 Biii Vin D j n h va D a n g T h u y N h u n g (2015). A n h hucmg cua viec l>6 s u n g che p h a m len m e n lactic (Kuiactic) v a o
k h a u p h a n lon o nuoi. 2: S:-.^-;
3. P h u n g D i ? p Lai C U l l ) . Njih.i-n o n . ^'•""'^'yiu:,n v.in sinh p r ( * i o t i c va u n g d g n g i r o n ^ ^ hA" "^^J^
T h ^ c SI sinh hoc. Tru»mg Dai hv"-' "• '• -^ ,r„biotic l e n 4. Le T h i M'^-n I - • ' ' -1' A n h h u o n g a i . i -hf ph;|^^''J ^^^^ j^Sj^g
n a n g s u a l stnh t n n m g ciia heo coii '••" " ' H4.9I, S 6 „ s C ™ l . o „ g . T < p c h i U , C S C h > » ™ « ^ ^ ^ ^ ^ ^ ^ 5. Le T h i M e n va T r u o n g C h i Son i J ' H ) ^ ^^^ ^^ ^ ^ ^ j ^ ^ ^ che p h a m m e n vi sinh (prt.biotic) I''" "•;'J,^,,^'^,-ing C r n i nai n u o i con v a h e o con t h e o m e o •" h ' ^.^^^^ ^^^ ^^
Long. T g p ch, k h ™ hpc I r ^ n g ' ; • ; • ' ; ; " . . ; „ „ , d , e p h ™ 6 D o T h i Nga, D J n g T h i y N ' ' " " 8 P " ' - ' ' " S s n L 56
B a a l l u s .TOvm.. (rrob...l,cl cho l<m c-on W a p n B , u - t u o , . T a p c h , k l l K l C h i n n u O , , 4 - lU-io.
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40-45
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C u r r Microbiol. A p p Sci., 5(6): 357-69.
9- Tra'n Q u o c Viet, N i n h T h j Len, Le V a n H u y e n , B u i T h j T h u H i e n v a N g u y e n T h j H o n g (2000). A n h h u o n g cua viec b o s u n g probiotic van k h a u pha'n thu'c Sn v a n u 6 c u o n g d e h sinh t r u o n g v a hieu qua sir d y n g thiic Sn ciia ga thjt. T a p chi K H C N Ch.ln nuoi, 20: 34-42- 10. Z h a n g Z,F- a n d I H K i m (2013). Effects of probiotic
s u p p l e m e n t a t i o n in different e n e r g y and n u t r i e n t density diets o n p e r f o r m a n c e , e g g quality, excreta microflora, excreta n o x i o u s g a s emission, a n d s e r u m cholesterol c o n c e n t r a h o n s in laying hens, J. A n i m . Sci,, 9 1 ; 4781-87.
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