نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری،گروه علوم دامی، دانشکده علوم دامی و صنایع غذایی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، اهواز، ایران

2 دانشیار،دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، گروه علوم دامی

3 استاد،موسسه تحقیقات علوم دامی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران

چکیده

به‌منظور بررسی آثار افزودن روغن آفتابگردان و برگ کنار برعملکرد، کیفیت گوشت و ترکیب اسیدهای چرب آن، آزمایشی با استفاده از 32 رأس بزغاله نر عدنی با میانگین وزن اولیه 2/2±8/17 کیلوگرم در قالب طرح کاملاً تصادفی با آرایش فاکتوریل 2×2، به‌مدت 75 روز انجام شد. بزغاله‌ها به‌طور تصادفی به یکی از چهار جیره شامل 1- شاهد، 2- حاوی 20 درصد برگ کنار، 3- حاوی 5/2 درصد روغن آفتابگردان و 4- حاوی 20 درصد برگ کنار و 5/2 درصد روغن آفتابگردان، اختصاص یافتند. تیمارها تأثیری بر خوراک مصرفی و وزن پایانی بزغاله‌ها نداشتند. با افزودن روغن به جیره، افزایش وزن روزانه (0/06=P) تمایل به افزایش و ضریب تبدیل غذایی (0/07=P)، تمایل به کاهش داشت. ماده خشک، پروتئین، شاخص‌های رنگ، مالون‌دی‌آلدهید و pH ماهیچه راسته تحت تأثیر تیمارها قرار نگرفتند. مجموع اسیدهای چرب اشباع (p <0/05) و اسیدهای چرب امگا-6 گوشت (p <0/01) راسته تحت تأثیر برهم‌کنش برگ کنار و روغن قرار گرفتند. اسیدهای چرب اشباع در تیمار شاهد و اسیدهای چرب امگا-6 در تیمار حاوی روغن آفتابگردان بیش‌ترین مقدار را داشتند. افزودن برگ کنار به جیره باعث افزایش نسبت اسیدهای چرب غیراشباع با چند پیوند دوگانه به اسیدهای چرب اشباع در گوشت راسته بزغاله‌ها شد (p <0/05). میزان چربی ماهیچه راسته با افزودن روغن آفتابگردان به جیره‌ها، افزایش یافت (p <0/01). نتایج آزمایش حاضر نشان می‌دهد که استفاده از برگ کنار و روغن آفتابگردان در جیره بزغاله‌های عدنی می‌تواند با کاهش اسیدهای چرب اشباع و افزایش اسیدهای چرب غیراشباع با چند پیوند دوگانه در گوشت، موجب بهبود ارزش غذایی آن شود.
 

کلیدواژه‌ها

عنوان مقاله [English]

Effect of Konar (Ziziphus mauritiana) leaves and sunflower oil inclusion on performance, and meat fatty acids profile of Adani goat kids

نویسندگان [English]

  • Mahmood Dashtizadeh 1
  • Mohsen Sari 2
  • Hassan Fazaeli 3

1 , Department of Animal Science, Faculty of Animal Science and Food Technology, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Ahvaz, Iran.

2 Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Ahvaz, Iran.

3 Animal Science Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.

چکیده [English]

In order to study the effects of sunflower oil and Konar leaves addition on performance, meat quality and fatty acids profile, an experiment was
conducted using 32 Adani male goat kids, with 17.8 ± 2.2 kg initial BW in a completely randomized design with a 2×2 factorial arrangement for 75
days. Goat kids were randomly assigned to one of four treatments: 1- control, 2- 20% Konar leaves, 3- 2.5 % sunflower oil and, 4- 2.5 % sunflower oil
+ 20% Konar leaves. The results showed that treatments had no effect on feed intake and final body weight of goat kids. Oil inclusion in the diet
tended to increase daily weight gain (P=0.06) and tended to decrease feed conversion ratio (P=0.07). Dry matter, ash, and crude protein
concentrations, color indices, malondialdehyde concentration and pH of longissimus dorsi (LD) muscle were not affected by treatments. Total
saturated fatty acids (p < 0.05) and total N6 fatty acids (p < 0.01) of LD are affected by interaction of oil and Konar leaves supplementation. Inclusion of
konar leaves in the diet increased the polyunsaturated fatty acids to saturated fatty acids ratio in LD muscle of goat kids (p < 0.05). The fat content of
LD muscle increased with the inclusion of oil to the diets (p < 0.01). The results of this study showed that using Konar leaves and sunflower oil in the
diet of Adani goat kids can improve the nutritive value of their meat by reducing saturated fatty acids and increasing polyunsaturated fatty acids.

کلیدواژه‌ها [English]

  • Adani goat kid
  • Growth performance
  • Meat quality
  • Sunflower oil
  • Tannin
1. Allen MS (2000) Effects of diet on short-term
regulation of feed intake by lactating dairy cattle.
Journal of Dairy Science, (83): 1598-1624.
2. AOAC (2012) Official Methods of Analysis.
Assoc. Offic. Anal. Chem., Arlington, VA.
3. Asadollahi S, Sari M, Erafanimajd N, Kiani A,
and Ponnampalam EN (2017) Supplementation
of sugar beet pulp and roasted canola seed in a
concentrate diet altered carcass traits, muscle
(longissimus dorsi) composition and meat
sensory properties of Arabian fattening lambs.
Small Ruminant Research, (153): 95-102.
4. Awawdeh M, Obeidat B, Abdullah A, and
Hananeh W (2009) Effects of yellow grease or
soybean oil on performance, nutrient
digestibility and carcass characteristics of
finishing Awassi lambs. Animal Feed Science
and Technology, (153): 216-227.
5. Boughalmi A, Araba A (2016) Effect of feeding
management from grass to concentrate feed on
growth, carcass characteristics, meat quality and
fatty acid profile of Timahdite lamb breed. Small
Ruminant Research (144): 158-163.
6. Dashtizadeh M, Sadeghi MH., Kazerooni H,
Kabirifard AM, Khaj H, and Fazaeli H (2016)
Nutritive value determination of of two Konar
branches (Ziziphus spina-christi, Ziziphus
mauritiana) in sheep nutrition. Final report of
the reaserch and educational center for
agriculture and natural sciences of Bushehr
province. P. 52. (In Persian)
Esterbauer H, and Cheeseman KH (1990)
Determination of aldehydic lipid peroxidation
products Malonaldehyde and 4-hydroxynonenal.
Methods in Enzymology, (186): 407-421.
8. Evans JD, and Martin S A (2000) Effects of
thymol on ruminal microorganisms. Current
microbiology, (41): 336-340.
9. Francisco A, Dentinho MT, Alves SP, Portugal
PV, Fernandes F, Sengo S, Jerόnimo E,
Oliveria MA, Costa P, Sequeira A, Bessa R.B,
and Santos-Silva J (2015) Growth
performance, carcass and meat quality of lambs
supplemented with increasing levels of a
tanniferous bush (Citus ladanifer L.) and
vegetable oils. Meat Science, (100): 275-282.
10. García EM, Agustín López A, Zimerman M,
Hernández O, Ignacio Arroquy J, and Azucena
Nazareno, M (2019) Enhanced oxidative stability
of meat by including tannin-rich leaves of woody
plants in goat diet. Asian-Australian Journal of
Animal Science, (32): 1439-1447.
11. Jenkins TC, Wallace RJ, Moate PJ, and Mosley
EE (2008) Board-invited review. Recent
advances in biohydrogenation of unsaturated fatty
acids within the rumen microbial ecosystem.
Journal of Animal Science (86): 397-412.
12. Kamel HEM, Al-Dobaib SN, Salem AZM,
L´opez S, and Alaba PA (2018) Influence of
dietary supplementation with sunflower oil and
quebracho tannins on growth performance and
meat fatty acid profile of Awassi lambs. Animal
Feed Science and Technology, (235): 97-104.
13. Karami M, Ponnampalam EN, and Hopkins
DL (2013) The effect of palm oil and canola oil
(saturated- versus polyunsaturated- fatty acids)
on feedlot performance, plasma and tissue fatty
acid profiles and meat quality in goats. Meat
Science, (94): 165-169.
14. Liu H, Vaddella V, and Zhou D (2011) Effects of
chestnut tannins and coconut oil on growth
performance, ethane emission, ruminal
fermentation, and microbial populations in sheep.
Journal of Dairy Science (94): 6069-6077.
15. Makkar HPS (2003) Effects and fate of tannins
in ruminant animals, adaptation to tannins, and
strategies to overcome detrimental effects of
feeding tannin-rich feeds. Small Ruminant
Research, (49): 241-256.
16. Makkar HPS and Singh (1992) Effect of wood
ash on tannin content of oak (Quercus incana)
leaves. Bioresource Technology, 41 (1): 85-86.
17. Manso T, Bodas R, Castro T, Jimeno V, and
Mantecon A (2009) Animal performance and
fatty acid composition of lambs fed with different
vegetable oils. Meat Science, (83): 511-516.
18. Najafi M, Zeinoaldini S, Ganjkhanlou M,
Mohammadi H, Hopkins D and Ponnampalam
E (2012) Performance, carcass traits, muscle
fatty acid composition and meat sensory
properties of male Mahabadi goat kids fed
palm oil, soybean oil or fish oil. Meat Science,
(92): 848-854.
19. National Research Council (NRC) (2007)
Nutrient requirements of small ruminants: sheep,
goats, cervids, and New World camelids.
National Academy Press, Washington, DC.
20. Nieto G, Díaz P, Bañón S, and Garrido M D
(2010) Effect on lamb meat quality of
including thyme (Thymus zygis ssp. gracilis)
leaves in ewes’ diet. Meat Science, (85): 82-88.
21. Ponnampalam EN, Holman BWB, and Kerry
JP (2015) The impact of animal nutrition on
muscle composition and meat quality. In:
Przybylski, W., Hopkins, D. (Eds.), Meat
Quality. Genetic and Environmental Factors.
CRC Press, Taylor and Francis Group, USA.
22. Santos-Silva J, Mendes I, Portugal P, and Bessa
R (2004) Effect of particle size and soybean oil
supplementation on growth performance, carcass
and meat quality and fatty acid composition of
intramuscular lipids of lambs. Livestock
Production Science, (90): 79-88.
23. Vasta V, Mele M, Serra A, Scerra M, Luciano
G, Lanza M, and Priolo A (2009) Metabolic
fate of acids involved inruminal
biohydrogenation in sheep fed concentrate or
herbage with or without tannins. Journal of
Animal Science, (87): 2674-2684.
24. WHO (2003) Diet, Nutrition and the
Prevention of Chronic Diseases. Report of a
Joint WHO/FAO Expert Consultation. WHO
Technical Report Series 916. WHO, Geneva.