D I N H DU'ONG VA T H U C A N CT
Ket qua cho thay ham Iugng \-at cha't khd cua dethi nghipm d DC (29"o) cao hon 2 NT (25,1-25,5%) cdn lai. Ham lupng beo thd va dgm thd cua de d NTI (31,5%EE va 72,9°oCP) cao hon DC (15,.s',. EE va 60,9"oCP) va NT:
(14,2''„EE \'a 66,2%CP), ke't qua nay cd the la do anh hudng cua ham lu(,7ng bck) tu TAHH ket hgp vdi rau mud'ng d NTI cao gap 9,66 lan so vdi DC. Ki'l qua thi nghipm d NTI cao hon ket qua nghien cdu ve thanh phan beo cua de'bdi Wang va ctv (20(M) la 10,3% hay Moreki va ctv (2012) \'(Ti 22,S";. beo. Sy khac bipt nay cd the la do anh hudng ciia khau phan an, gid'ng de.
4.KfTU]AN
Nhipt dp va dp am trung binh thich hgp dc nudi de Thai khoang 27-35 C va cao hem 65%. NTI va NT2 voi khau phan bd sung TAHH ket hgp vdi rau mudng hogc xa lach giup trung nd sdm hen va khd'i lugng tot hon.
NTI giup nang eao gia trj dinh dudng ve ham lugng beo va protein eua de.
TAI U | U THAM KHAO
1. A O A C ( 1 9 9 5 ) - O f f i d a l M e l h o d s o f A n a l y s i s A s s o a a t i o n ol Offiin.il Analytical Chemists, VVashinglon DC- 2. I,\Oi2i!l'>} Cricket Farming for H u m a n C o n s u m p t i o n .
.•\\.iii.ilik> ,11: http //teca fao org/read/7927.
3 H a l l o r a n A-, Roos N . a n d H a n b o o n s o n g Y. (2017) Cncket farming as a livelihood strategy in T h a i l a n d Geogr-J, 183- 112el24. h t t p / / d x . d o i . o r g / 1 0 - l l ] l / goo|,121S4
4 H a l l o r a n A., Roos N., E i l e n b e r g J., C e n i t t i A.K. a n d B r u u n S. (2016a) L i l e c j - d e assessment of e d i b l e insects for food protein a review. A g r o n . Sustain, D e v . 36 57.
5 H a l l o r a n A., Roos N., Flore R. a n d H a n b o o n s o n g Y.
(2016b), The d e v e l o p m e n t of the edible cricket i n d u s t r y
m T h a i l a n d . J . l n s e e t F o o d F i - e d Z . ' J I e h - Mp'^'^^
org/10.3920/JIFF20l5 0091.
H a n b o o n s o n g ^ , l a m j a r y a T. a n d D ' Six-legged U\-eslock: Edible In^ci *'''""'"^,„^,, and M.irkeling in T h a i l a n d , F.XHI j o d - ^ O r g a n i z a t i o n of the U m t e d N . m o n s R e g i " " " ' Asia a n d thu Paafic, Bangkok,
.8- (2013).
Coliecimg jculture ,1 Office
. . , . r . i on d i a p a u s e 7 H o g a n T.W. (1961). T h e « h o n o • - S ^ h o p W . :
in e g g s of A c h e t a a i m m o d u - ; (W-ilkl i^ r- Gryllidae). A u s t . ] Biol Sci., 14 41'J-2o 8 K e v i n E. M c C l u n e y a n d R i s h a b h C D . ( 2 ™ ^ ' ' J
etfects of h y d r a t i o n o n g r o w t h of the house CHCKCI, Acheta d o m e s t i c u s , J. Insert S o . 8' 1-^-
9 K i e r u z e l M (1976). T h e selection of shelter place b y the h o u s e cricket- Acta neurobiol. IXp • 36, 561-80, 10. M o r a l e s - R a m o s J.A., Rojas M . G . a n d D o s s e y A-T.
(2017) A g e - d e p e n d e n t food u h l i s a t i o n of Acheta d o m e s t i c u s iOrlhoplera GrylliditL-) in small g r o u p s at two t e m p e r a t u r e s . ) Insects as Food and Feed, 4. 51-60.
11. M o r e k i J . C , T i r o e s e l e B. a n d C h i r i p a s i S C . (2012).
Prospects of utilizing mseets as a l t e r n a t i v e s o u r c e s of protein in p o u l t r y d i e t s in Botswana, a review. J. A m m . Sci, A d v , 2: 649-58
12. N a k a g a k i B.J. a n d DeFoliart G.R. (1991) C o m p a r i s o n o f d i c l s f o r m a s s r e a r i n g Acheta d o m e s t i c u s ( O r t h o p t e r a ; Gryllidae) a s a novelty food, a n d c o m p a r i s o n of food conversion efhciency with values r e p o r t e d for livestock, J . E c o . Ento 84:891-96,
13. O o n i n c x D.G.A.B., v a n I t t e r b e e c k J., H e e t k a m p M.J.W., v a n d e n B r a n d H., v a n L o o n J.J.A. a n d v a n H u i s A. (2010), An e x p l o r a h o n on g r e e n h o u s e g a s a n d a m m o n i a p r o d u c t i o n by insect s p e c i e s s u i t a b l e for a n i m a l o r h u m a n c o n s u m p t i o n PLoS O n e 5; el4445, httpV/dx,doi,org/10,137]/]ournal,pone.0014445 14. T r a n g tr^i d e T h a n h P h o n g (2013), h t t p s ; / /
w w w . f a c e b o o k . c o m / T r a i D e T h a n h P h o n g / posts/415795415204906.
15. Van d e r H a v e T . M . a n d J o n g G . (1996), A d u l t size m e c t o t h e r m s : t e m p e r a t u r e effects o n g r o w t h a n d differentiation, J. Theoretical Biol-, 1 8 3 : 3 2 9 4 0 , 16. W a n g D-, Bai Y-, Li J. a n d Z h a n g C- (2004). NutriHonal
value of the field cricket (Crytlus leslaceiis Walker).
E n t o m o l o g i a Sinica, 1 1 : 275-83
ANHHl]"dNGCUAB6sUNGBdTSA(CVMBOPOGO> JiTUS) KET HOP BOT QUE ^dNNAMOMUM VERUM) LEN NA,\ . SUAT
SINH SAN VA CHAT LLfONG TRdNG CUA GA ISA BROWN
Nguyen Thi Kim Khang'', Le Gia Linh va Truang Vdn Phu-ac'
\Bii>' nhan bai bao: 04/12/2019 - Ngay nlian bii piian bien: 29/12/2019 Ngay bai bao diroc diap nlian dang: 08/01/2020
' T n i t m j ; Dai ho,' C a n Thu.
•TnKinj; D.ii hgc Titn C i a n j ;
* Tac Ria J e hen he TCS T^ \ R u v e n ITii Kim K h a n & T m o n g Bo m o n ChSn n TTio. T P C a n l l i o Dien Ihoai IW31.2115 355 Email n t k k h a n g & c h i e d u v n
31, Khoa N o n g n g h i e p , ! , i^ Uai hrjc C a n
62
KHKTChan nuoi so 255 - Ihan:nam 2020
DINH DUCTNG VA THLfC AN CHAN NnJOI
T O M T A T
Thi nghipm nay da d u p c thyc hien d e d a n h gia hieu qua cua viec bo sung bpt Sa va ke't h p p cac muc bd sung bpt Q u e k h a c nhau den n a n g sua't va chat l u p n g t n i n g ga Isa Brown, thi nghi&m d u p c thie't ke ngau nhien voi 4 kha'u phan va 10 lan lap lai vdi 160 c o n g a - C a c khau phan thi nghipm nhir sau: DC la mpt khau phan co s o m a khong can bo sung thao dupc; SIO bao gom l O g b p t S a (BS) cho moi kg thuc an; S10Q150 va S10Q250 bao gom tdng cong lOg bpt Sa cpng vdi 150mg hoac 250mg bpt Que'(BQ) cho moi kg thuc an- Thi nghiem d u p c thuc hien trong 9 tuan- Ket qua nghien ciiu clio thay KL ga cuoi ky d DC va SIO giam so vdi KL ga dau kv trong khi do S10Q150 va S10Q250 tang.
TLD cua ga d tuan 51 va 52 cao nha't d S10Q150 (99,64 vk 100%) va tha'p nha't 6 S10Q250 (84,29%) va DC (82,5%) (P<0,05). TTTA, HSCHTA va KL t n i n g khong co su sai khac giua cac NT (P>0,05)- Ty le vo va dp day vo (DDV) giiia cac NT co sy khac bipt co y nghia thong ke (P<0,05). T u ke't qua thi nghiem co the ke't luan bo sung lOg BS dem hay ke't h p p vdi 250mg BQ vao khau phan cai thien dupc ty 1? de d ga cung n h u tang ty 1? vo va dp day vo trung.
Tii khoa: Bgt Sd, bot Que, ty le de, do ddy vd, gd de.
ABSTRACT
Effects of dietaiy s u p p l e m e n t e d l e m o n grass p o w d e r a n d its mixture of different cinnamon powder levels on reproductive performance and egg quality of Isa Brown laying hens This study was done to evaluate the effects of dietary supplemented lemon grass powder and its mixture of different cinnamon p o w d e r levels on reproduchve performance and egg quality of Isa Brown laying hens. An experiment was completely randomized design into 4 dietary treatments and replicated ten times with 4 laying hens per replicate. The experimental diets were as followed as' control was a basic diet without any herbal supplementation (KPCS); SIO consisted of KPCS plus lOg lemon grass powder (LOP) per kg feed; S10Q150 and S10Q250 consisted of KPCS added a total of lOg LGP plus 150 mg; and 250 mg cinnamon powder (CP) per kg feed, respectively. The experiment was carried out for 9 weeks. Results showed that the final body weight of laying hens was significantly reduced on control and SIO (P<0,05) whereas S10Q150 and S10Q250 increased.
The laying rate of hens was signigcant difference among treatments al 51rst and 52"'' weeks, highest on S10Q150 (99,64 va 1007o) and lowest on S10Q250 (84,29%) and control (82,5%). There were no different significances among treatments on feed intake, feed conversion ratio and egg weight.
The eggshell percentage and eggshell thickness were also significantly different among treatments.
From the above results, it is concluded that supplementation of lOg LG single or combined 250mg CP per kg feed improved laying rate of hen and eggshell percentage as well as eggshell thickness.
Keywords: Lemon grass, cinnamon, laying rate, eggshell thickness, hen.
1. flAT VAN DE Que (Cinnamomum veruin) t h a n h p h a n e h u . ,. .. . ye'u e h i e m 75-90% la t i n h d a u e i n n a m a l d e h y d e C a c n g h i e n c m i t r e n gia c a m g a n d a y c h o ^i, „<; t h e h i e n l i n h Ichang Ichuan va c h S n g thay cac c h a l p h u gia M n h i e n n h u t h a o m o c , ^ ^ y ^ ^ ^ ^^ee v i ctv, 2004; Faix va ctv, 2009).
tinh d a u cd m p t so' d a e tinh n h u ' cha't h d t r p Tinh d a u e i n n a m a l d e h y d e da d u g e tim tha'y tang t r u d n g d e t h a y t h e c h a t kich t h i c h t a n g ^^^^g ^^^ j ^ g h i g ^ ^6 d a c Hnh k h a n g k h u a n , t r u d n g , k h a n g s i n h b i c a m v a h a n c h e s d d u n g ^^. ^ h d s u p h a t t r i e n c u a B.cereus (Valero v a trong c h a n n u d i , n g h i e n c d u cac c h a t e h u y e n S a l m e r o n , 2003). D o e to n a m r a t n h a y c a m v d i hoa t h u c a p h o a t tinh s i n h h p c co n g u d n gd'c ( 3 u e ' ( S o l i m a n v a B a d e a , 2002)- H a s s a n va etv Kr t h y c vat n h u c h a t t a n g c u d n g h i e u s u a t (2004) c h o t h a y r ^ g b d s u n g Q u e k h d n g l a m thay t h e ' ( G r e a t h e a d , 2003), cd tac d u n g k h a n g a n h h u d n g d a n g k e v e l u g n g an, t r o n g k h i d d k h u a n (Valero v a S a l m e r o n , 2003), cac h o a t g i u p cai t h i e n t\' le e h u y e n h o a t h u c an- N g o a i d p n g k h a c n h u c h a t cho'ng o x y h d a ( B o t s o g l o u ra, gia c a m d e t r d n g cd b d s u n g Q u e ' l a m g i a m va ctv, 2002; G i a n n e n a s v a ctv, 2005; F l o r o u - l i p i d huye't t h a n h , c h o l e s t e r o l va a l b u m i n Paneri v a ctv, 2006). d a n g ke. T h e o A I - K a s s i e (2009), v i e c s d d u n g
KHKT Chdn nuoi so 255 - ihdng 3 ndm 2020
DINH Dl/OfNG VA I H l / C AN - ^^ ' " - "
cac chiet xua't tir Que giup cai thipn hipu qua thlic an do cac chat nhu cirmamaldehyde \ a eugenol. Que cdn la thao dupc dimg nhu mpt gia vj trong thuc phaim cua con nguoi va cung la chat phu gia rat duoc sir quan tam trong dinh dudng gia cam.
Sa (Cymbopogon citrafus) la mpt loai thao dupc lau nam cd mui thcmi tinh te vdi than re cao va mpc thanh bui (Barbosa va ctv, 200S, Oloyede, 2009). Mpt sd' hpfp chat cd trong Sa bao gom citronellal, m\rcene, geraniol, neral v'a limonene (Loumouamou va ct\', 2010).
Ngoai vipe dupe sd dyng cho cac logi nudc hoa va hucmg lipu, no eiing dupc su dyng rpng rai trong v hpc co truyen, dac bipt la trong V hpc dan gian d Brazil (Lucia va cW, 1986). Trong mpt vai nghien cuu, Sa da dupc chd'ng minh uc che sy tang trudng cua mpt so VI khuan gram duong va vi khuan gram am nhu Stapbyococcus aureus, Salinonella-typbi, Bacillus aureus v'a Escherichia coh (OUnedc, 2009). Cay Sa da dem lgi nhieu tac dyng khi dupc phdi trpn vao khau phan an cua gia cam, nhieu nghien cuu da va dang dupe md rpng de nang cao hipu qua chan nudi.
Chinh vi the) de tai "Anh hudng cua bo sung bpt Sa (Cymbopogon dlratus) ke't hpp bot Que (Cinnamomum veriim) Ien nang sua't sinh san va cha't lupng trdng ga Isa Brown" dupc thyc hipn nham danh gia anh hudng eua su ke't hgrp bpt Sa va bpt Que' len nang sua't va chat lupng trung ga de thuong pham, qua do xae dinh t\- Ip bpt Sa va bot Que' toi uu nha't trong khau phan an cua ga va mang lai hieu qua kinh te'cao nha't cho ngudi chan nudi.
Z. VAT u f u VA PHUUNG PHAP NGHIEN CUTU
2.1. Vat lieu
Thi nghiem dugc tie'n hanh tren 160 con ga de trung gio'ng Isa Grovsm d giai doan tu 44 de'n 52 h-ian tuoi, tai trai ehan nuoi ga de trung thuong pliam tai xa Trung An, thanh phd' My Tho, tinh Tien Giang, Kr ngay 20/1/2019 den 23/3/2019. Dan ga da dugc Hem phdng va tay ky sinh trung dav du trudc khi tie'n hanh thi nghiem.
K- tine d^.'/Q'^
Thdc an CO sd aui Tr.u v .> .^'\^ Jj ti,am lipu nhu bpt S.i cd mau \-ang ngJ ^o nhe, cd vi dang va dupe mua oia ^« ^^^^J.
TNHH ehe bien thyc pham Vipt An^ ^^
451/5 Nguyin Trai, Phuimg 7, Quan ^' ^^ '^^^j Chi Minh. Bpt Que co " ' - " ^ ^ / ^ , , ^ , , niua tham ndng, co ^^ hm cay, chaMa s cua cong Tv TNtiH ehe bien thye P^^m Vip*
An t,i 451/5 NguM:..i Trai, Phudng 7, Quan 5, TP. Hd Chi Mmh
Tr^i gdm3 dav chudng, dupcthietketheo hudng D6ng BSc^Tay Nam, mai chuong lpp tdn cd 3 chudng nudi, mdi chudng co dipn tich 14 X 100m, moi chuong each nhau 4m co eong thoat nudc. Cac tang xep chdng Icn nhau theo hlnli thap, tang thap nha't each nen chuong 30cm, kich thudc moi 6 chudng trong tang la 40 X 60cm nudi dupc 4 ga mai de, tong dan moi day chuong la 11-800 con. Ga dugc chieu sang 16 gid trong mot ngay, hp thd'ng^ den dupc dieu khien ty dgng, den hJ' dgng tat luc 21 gid va hi' dpng bat luc 4 gid, bp dieu khien dupc dat d dau trai. Mang an duge dat phia trudc mdi tang long, each mang hdng trung 10cm, dupc lam bang nhua. Ga ud'ng nudc tu do vdi he tho'ng nudc bSng num ud'ng tu dpng 2.2. Phu'OTig phap
Bdtri tbi nghiem
Thi nghiem dugc bo tri theo the thdc hoan toan ngau nhien gom 4 nghiem thdc (NT) va lOlanlap, tu'cmgung vdi 40 don vi thi nghipm, mdi don vi thi nghipm la mot 6 chuong gom 4 conga, tong so ga thi nghiem la 160 conga giai doan tu' 44 den 52 hian hidi,
Thi nghiem gom 4 NT tuong dng vdi 4 KP vdi ty le bo sung bpt Sa (BS) va Que (BQ) nhu' sau:
Ddi chdng (DC): ga dupc cho an khau phan CO sd (KPCS) khong cd bo sung,
SIO: ga dugc cho an KPCS cu bdsung lOg BS/kg thuc an (TA);
S10Q150: ga dupc cho an KPCS co bd sung lOg BS/kg TA va 150mg BQ/kg TA;
S10Q250: ga dugc cho an k'pcs c6 bo sung lOg BS/kg TA va 250mg BQ i,; j ^
KHKTChdn nuoi so 255 • ihdn:
"' "^m 20:0DINH DUONG VA T H U ' C AN CHAN NUOI
Ta't ca ga thi nghipm dupc tiem phdng vaccine va tay giun san theo quy trinh cua trai.
Tint tbap sd'lieu vd ede chi tiiu theo ddi TTTA, hipu qua su dung TA dugc ghi nhan hang ngay dya tren lugng an vao va lugng thira.
Tning ga dugc thu gom, can va ghi nhan h^ng ngay vao luc 16 gid chieu de tinh eac chi tieu ve ty Ip de va nang sua't trung binh quan (NSTBQ).
Mau tning dupc lay va do cac chi tieu ve chat lugng trung vao 3 thdi diem luc 45,49 va 52 tuan tud'i, mdi NT chpn ra 10 qua cho mdi lan do. Tdng so qua trung ga phan h'ch la 120 qua tning (10 qua x 4 NT x 3 thdi diem). Cac chi tieu ve chat lugng trung nhu KL trdng, ty Ip eae thanh phan ciia qua trdng, chi so hinh dang (CSHD), chi so' long trang dac va long do, mau sac long do va dp day vo.
Ga thi nghipm dugc can trudc va sau khi tie'n hanh thi nghipm, ngoai ra, trang thai sue khoe dan ga du'pc quan sat va ghi nhan cd nhiing bieu hipn gi khac thudng khong vao moi buoi sang sdm, sau dd ga dugc cho an, cac vitamin va chat dipn giai dupc pha trgn vao nudc uo'ng cua ga. Chuong trai, mang an, mang ud'ng dupc ve sinli dgn dep hang ngay 6 ta't ca cac 6 thi nghiem.
B ^ g 1. Nang suat tning
2.3.Xiily so lieu
So' lieu dugc xd ly so bd bang phan mem Excel 2010 va xu lv thd'ng ke bang phan mem Minitab 16 vdi mo hinh Tuye'n h'nh Tdng quat (General Linear Model), de xae dinh muc dg khac biet y nghia cua cae nghipm thuc bang phucmg phap Tukey vdi dp tin eay 95%.
3. KET QUA VA THAO LUAN
3.1. Anh hudng cua bo sung bpt Sa va Que len nang suat tning cua ga Isa Brown
Ke't qua d bang 1 cung tha'y eho tha'y, KL ga dau ki d eac NT bd sung cao hon so vdi DC, tuy nhien sy khae biet nay khong cd y nghia thd'ng ke (P>0,05). KL ga cudi ki co sy khac bipt cd y nghia thdng ke (P<0,05), cao nha't d SlOQlsb (2,07kg) va tha'p nha't d DC (1,95kg).
Ke't qua ghi nhan cho tha'y KL ga cuoi ki d DC (-30g) va SIO (-20g) eo sy giam ve KL so vdi dau kl, ngupc lai S10Q150 va S10Q250 eo sy tang 60g va 30g so vdi dau ki. Dieu nay cd the tha'y duge qua ehi tieu ve ty Ip hao mon co the cua ga de d DC (-2,5%) va SIO (-1,7%) so vdi S10Q150 va S10Q250 (P<0,05). Tieu ton thdc an (TTTA), he so' diuyen hda thuc an (HSCHTA) va khoi lugng (KL) trung cua ga giua cac NT cd sy khae biet khdng cd y nghia thdng ke (P>0,05)-
khi bd sung bpt Sa va Que
Cac chi tieu N g h i e m thiJc
S10Q150 51DQ25Q
KLdau ki, kg K L c u 6 i k i , k g TL hao mon co the, % TTTA, g/mai HQSDTA, g/tnJng KL tning, g / t n m g
1,98 1,95-^
-2,5'- 115,93
1,77 65,73
2,00 1,9s''' -1,7'' 115,00
1,77 65,19
2,01 2,07'' 6,4'' 116,78
1,81 64,50
2,01 2,04-=^
3,1'^
111,16 1,73 6 4 , 4 3
0,019 0,022 2,091 1,863 0,03 0,71
0,626 0,002 0,015 0,170 0,38 0 , 5 3
Bd sung bpt Sa va bpt Que trong khau phan ga de thi nghiem khong anh hudng den TTTA, HSCHTA va KL hning cua ga thi nghiem. Nghien cuxi cua Abdouli va ctv (2014) cung bao cao ve su giam KL eo the d ga de Lohmann White d 52 tuan tuoi tii- 115g de'n 28,9g d eac khau phan co bo sung 2, 4 va 6g hat Fenugreek. Ngugc lai, Mousstafa (2006);
Nasra va ctv (2010) cho rang cd sy tang KL
ga de khi bd sung 0,1 hoae 0,5 va 0,05% hat Fenugreek trong khau phan. Mmereole (2010) bao cao rJng bo sung l g bgt Sa vao khau phan an cua ga thit AA khdng anh hudng de'n TTTA, Abou-Elkhair va cb/ (2018) cung ket luan tuong tu KLT ga khong bi anh hudng bdi eae khau phan co bo sung hat thi la, hat thi la den va dt do cay 6 ga de Lohmann White.
KHKT Chdn nuoi so 255 - thdng 3 ndm 2020
'.;i!n,-|,:M|,.TG' \'\:'J''€_AS " '•^''>y--
D I N H D U ' O N G V.A THL'C ^ ' '^^t^
Tir ke't q u a thi n g h i p m cd t h e ket l u a n r a n g b d s u n g IQg b g t Sa ket h p p I 5 0 m g h o ^ c 2 5 0 m g b g t Q u e t r o n g k h a u p h a n g i u p cai thipn KL g a d e .
3.2- A n h h u d n g o i a b o s u n g b p t S i va Q u e len ty le d e ctia ga Isa B r o w n
A n h h u c m g cua vipc b d s u n g b g t Sa va b p t Q u e ' l e n lv Ip d e d u g c t h e hipn q u a b a n g 2 c h o t h a y ty Ip d e (TLD) c u a ga g i u a cac N T k h a c bipt k h d n g cd y n g h i a thd'ng k e d cac t u a n tir 44 d e n 50 (P >0,05). T L D c u a ga o t u a n 51 va 52 cd su k h a c bipt cd v n g h i a thd'ng k e g i u a cac N T (P<0,a5), c a o n h a t S 1 0 Q I 5 0 (99,64 va 100%) va tha'p n h a t d S I 0 Q 2 5 0 (S4,29"„) va D C (82,5"o). T L D t r u n g b i n h cua ga d S10Q150 v a S10Q250 d a t (>93".,) s o D C va SIO (>82*'o), tuy n h i e n sy k h a e bipt n a y k h d n g eo \' n g h i a t h d n g ke (P>0,05).
Bang 2. Ty I? d c (%) khi bd s u n g bpt S J \ a Q u e Tuan
tuoi
Nghigm thirc P C 510 510Q150 S10Q250 SE
Sh.-l.l SS,71 S4,64
90.00 92,14 92,50
S7,14 93,57 95,71 95,71 96,79 85,00* 95,00* 99,04 82,50'
S5,44
100,0*
93,70 83,57 84,29^
85,72''- 3.48 0.43 3,96 0,79 3,S8 0,51 3,47 0,36 3,71 0,20 3,S8 0,16 3,68 0,04 3,88 0,02 3,90 0,01 3,30 0,13 Mac d u su sai k h a c ve t\' Ie d e (TLD) k h o n g CO y n g h i a t h o n g ke, n h u n g T L D d N T cd b d s u n g bpt Sa va b p t Q u e eao h o n , d i e u n a y cd the la d o n h i h i g h o a t chat sinh h p c ed trong Sa n h u Alpha-citral, Beta-citral, M y r e n e , Geraniol va Q u e cd a l d e h y d e c i n n a m i c , e u g e n o l , cucalyptol, safrol, b o m e o l , n h u n g h o a t chat n a y d a kich thieh s u bai tie't c d a tien long d o t r u n g t h o n g q u a viec b a o v e te' b a o g a n khdi t o n t h u o n g ox\' h o a v d i s y t a n g cu-tmg tie'p t h e o e u a s y h i n h t h a n h v a r u n g t r u n g (Bollenger-Lee v a ct\', 1998) va tac d d n g tich c u e d e n h e vi s i n h v a t d u d n g r u g t , t a n g c u d n g k h a n a n g tieu h d a va h a p t h u d i n h d u d n g , cai thipn d a c d i e m b u o n g t r u n g g i u p
1 ..iialJ'-''^''^'' tinh t r ^ n g s u e k h d e tot h o n v.: ' "^" , hem (Boka va c-t^•., 20! 4 Saki \ . ' ' ' ^ ' - = " ^
. - , c i va Q u e 3.3. A n h h i r d n g c u a b o s u n g bpt =>
l e n c h a t l i r p n g t n i n g ga Isa B r o w n K . t q u a p h . n h'ch . . t h a i ^ P ^ - ^ ^ ^ ^ t r u n g e h o t h a y tv le ' - " g ^ - ; % | t h i n g k l t n J n g k h d n g co s y sai khac x . m ? &
giiia eae N T (P>0,05), ngoai t m . ^ . l ^ ; ; , ^ ^ ^ ^
? y k h a c bipt eo ^ nghia Ehdng k e g i u a cac N T P<0,05), e ! o n h a . a S10Q250 ( P o . '•.) v a t h a p nha't d S 1 0 Q 1 5 0 (12,17%). 1 u o n , u,, d p d a y v 6 (DDV) d cac NT eo si. khae bipt y n g h i a t h m g ke (P<0,05), cao n h a t o SIO (0,45 m m ) v a J a p nha-t d S10Q150 (0,43 m m ) . KLT chi s o h m h d a n g (CSHD), chi so long t r a n g d a c ( C S L I U ) , chi s d long d o (CSLD), m a u l o n g d o (MLD) va d o n vi H a u g h g i u a cac N T k h d n g co s y k h a c bipt y n g h i a thd'ng k e (P>0,05). T r o n g d o , C S H D n g m trong k l i o a n g 77,8- 78,12; CSLTD la 0,06-0,07; CSLD nftm t r o n g k h o a n g 0,39- 0,40; M L D niim t r o n g k h o a n g 9,13-9,23; v a d a n vi H a u g h eo gia trj 91,16-91,21.
Bang 3. C h a t l u g n g triing k h i b d s u n g b p t Si va Q u e
Chi tieu Nghi&m thlic
P C SIO S10Q150S10Q250 - S E M P 26,50 25,78
65,35 65,72 12,44-M2,60'*
65,56 65,16 77,84 77,80 0,06 0,07 0,39 0,40 9,17 9,23 DVHaugh 91,18 91,18 DDV,mm 0,44-''' 0,45^
TLLD, % TLLT, % TLV, % KLT,g CSHD CSLTD CSLD MLD
26,42 65,54 12,17"
64,30 78,12 0,07 0,39 9,20 91,16 0,43"
26,69 65,02 12,67=
64,32 78,12 0,07 0,40 9,13
0,26 0,09 0,31 0,41 0,13 0,05 0,50 0,19 0,74 0,98 0,01 0,69 0,01 0,13 0,10 0,90 0,07 0,96 __0,01 0,01 S y eai t h i e n v e "TLV va D D V d c a e N T CO b d s u n g CO t h e d o c a c d u d n g cha't a n v a o d u g c ha'p t h u t d t hem, t r o n g d-'i co calci n h d
cae hoat chat co trong bgt Sa va Que, rieng dd'i vdi S10Q150 cd the la do anh hmmg bdi khdi luong trdng ldn va ty Ip de r^,, y^^ ^^^
dan deh TLV va DDV tha'p hon . ,. NT con lai.
Viee bd sung bgt Sa va bgt Que I ' i. ,ng [^^ ^^
hudng nhieu de'n TLLD va TLL r nmgga ^uv nhien ket qua thi nghipm nay . PLLD ihii'p
KHKT Chdn nuoi so 255 - ihdn idm2(no
D I N H DU'ONG VA THU'C A N C H A N N U O I
hon trong khi TLTT trung lai cao hem so vdi chuan cua Bui Huu Doan (2011) (31,6%). Dg day vo trung la mgt chi tieu quan trgng dang chu y trong vipc bao quan, van chuyen va ap nd tning, ke't qua ve DDV cua thi nghiem phil hgp va nam trong khoang eho phep 0,2 - 0,6mm (Nguyen Due Hung, 2006; Bui Hiiu Doan, 2011).
4.KETLUAN
Bd sung bgt Sa (10 g/kgTA) va ke't hgp vdi bpt Que' (250 mg/kgTA) vao khau phan ga de Isa Brown lam tang ty le de cua ga va tang ty 1? vo va dg day vo trung.
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