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Tufarelli V, Ghavami N, Nosrati M, Rasouli B, Kadim IT, Suárez Ramírez L, Gorlov I, Slozhenkina M, Mosolov A, Seidavi A, Ayasan T, Laudadio V. The effects of peppermint ( Mentha piperita L.) and chicory ( Cichorium intybus L.) in comparison with a prebiotic on productive performance, blood constituents, immunity and intestinal microflora in broiler chickens. Anim Biotechnol 2023; 34:3046-3052. [PMID: 36227283 DOI: 10.1080/10495398.2022.2130798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A total of 320 one-day-old broiler chickens were used in a 42-day feeding trial to evaluate the effects of peppermint (Mentha piperita L.) and chicory (Cichorium intybus L.) in comparison with a prebiotic on-growth performance, blood constitutes, immunity and intestinal microflora. The dietary treatments were as follows: basal diet (control); control + prebiotic (Fermacto™); control + 0.1% peppermint; control + 0.1% chicory, respectively. A significant (p < 0.05) body weight gain and feed intake was found at 21 and 42 days of growth period in broilers fed diet supplemented with 0.1% chicory compared with other groups. Feeding of prebiotic or chicory led to higher (p < 0.05) feed intake. Chickens fed control diet had higher (p < 0.05) abdominal fat compared with the other groups. Serum blood constituents indicated that broilers fed prebiotic or supplemented with peppermint or chicory had reduced (p < 0.05) levels of cholesterol, triglycerides and low-density lipoprotein than control group. Immunity-related parameters showed that chicken fed chicory had lower (p < 0.05) heterophil-to-lymphocyte ratio compared with the other groups. Intestinal microflora revealed that chickens fed prebiotic or herbals had higher count of Lactobacillus and lower E. coli than control. Thus, it can be concluded that broiler dietary supplementation with prebiotic or chicory can improve performance supporting positively health status.
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Affiliation(s)
- Vincenzo Tufarelli
- Department of DETO, Section of Veterinary Science and Animal Production, University of Bari Aldo Moro, Valenzano, Bari, Italy
| | - Narjes Ghavami
- Department of Animal Science, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Mehran Nosrati
- Department of Animal Science, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Behrouz Rasouli
- Department of Animal Science, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Isam T Kadim
- Department of Biological Sciences and Chemistry, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Lourdes Suárez Ramírez
- Department of Animal Pathology, Animal Production, Bromatology and Food Technology, Veterinary Faculty, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Ivan Gorlov
- Volga Research Institute of Production and Processing of Meat and Dairy Products, Volgograd, Russia
| | - Marina Slozhenkina
- Volga Research Institute of Production and Processing of Meat and Dairy Products, Volgograd, Russia
| | - Alexander Mosolov
- Volga Research Institute of Production and Processing of Meat and Dairy Products, Volgograd, Russia
| | - Alireza Seidavi
- Department of Animal Science, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Tugay Ayasan
- Kadirli Academy of Applied Sciences, Osmaniye Korkut Ata University, Osmaniye, Turkey
| | - Vito Laudadio
- Department of DETO, Section of Veterinary Science and Animal Production, University of Bari Aldo Moro, Valenzano, Bari, Italy
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Affiliation(s)
- Isam T Kadim
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Issa S Al-Amri
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Abdulaziz Y Alkindi
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Quazi M I Haq
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
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Al-Amri IS, Kadim IT, Al-Kindi AY, Khalaf SK, Al-Harrasi AS, Al-Hashmi SA, Al-Shibli AA, Al-Hadi WM, Al-Mahmuli MK, Jamshidi-Adegani F, Vakilian S, Al-Amri AI, Al-Yaqoobi SS, Al-Riyami KO. Microscopic Evaluation of Ovarian Surface Epithelium Following Treatment with Conjugated Estrogens in a Mouse Model. Asian Pac J Cancer Prev 2022; 23:1913-1920. [PMID: 35763631 PMCID: PMC9587831 DOI: 10.31557/apjcp.2022.23.6.1913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 06/18/2022] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND This study was designed to evaluate the effect of different concentrations of conjugated equine estrogens (CEE) on the ovarian epithelium of female CD1 mice. METHODS Twenty-four female mice at 7 months with irregular estrus cycles were randomly divided into four groups of 6 mice each. Group one was considered as a control group and received a daily dose of 0.5ml of propylene glycol, for three weeks, while those in the treatment groups received a daily dose of 14μg/kg, 28μg/kg and 56μg/kg conjugated equine estrogens, respectively. RESULTS The results from this study showed a strong correlation between elevated concentrations of CEE and histological changes in ovarian surface epithelium (OSE). They also showed that administration of high-dose estrogen created the conditions for excessive proliferation of OSE which may progress into the development of cysts in the ovaries. CONCLUSION This study concluded that high concentrations of CEE may increase the chances of developing epithelial ovarian cancer.
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Affiliation(s)
- Issa S Al-Amri
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Isam T Kadim
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Abdulaziz Y Al-Kindi
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Samera K Khalaf
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Ahmed S Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Sulaiman A Al-Hashmi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Ahood A Al-Shibli
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Wesal M Al-Hadi
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Manal K Al-Mahmuli
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Fatemeh Jamshidi-Adegani
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Saeid Vakilian
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Asala I Al-Amri
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Sausan S Al-Yaqoobi
- DARIS Center for Scientific Research and Technology Development, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
| | - Khamis O Al-Riyami
- DARIS Center for Scientific Research and Technology Development, University of Nizwa, Birkat Al-Mouz, Nizwa, Sultanate of Oman.
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Amri IA, Mabood F, Kadim IT, Alkindi A, Al-Harrasi A, Al-Hashmi S, Abbas G, Hamaed A, Ahmed B, Al-Shuhaimi J, Khalaf S, Shaikh J. Evaluation of the solubility of 11-keto-β-boswellic acid and its histological effect on the diabetic mice liver using a novel technique. Vet World 2021; 14:1797-1803. [PMID: 34475700 PMCID: PMC8404125 DOI: 10.14202/vetworld.2021.1797-1803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/17/2021] [Indexed: 12/02/2022] Open
Abstract
Background and Aim: The literature is scant on the effect of 11-keto-β-boswellic acid (KBA) on the liver of diabetes-induced mice. This study was designed to develop a rapid, sensitive, accurate, and inexpensive detection technique for evaluating the solubility of KBA obtained from the gum resin of Omani frankincense (Boswellia sacra) in the liver of streptozotocin-induced diabetic mice using Fourier transform infrared (FTIR) reflectance spectroscopy coupled with principal components analysis (PCA). It also aimed to investigate the effect of KBA on histological changes in the hepatocytes of diabetic mice. Materials and Methods: Eighteen mice were assigned to the healthy control group, the diabetic control group, or the KBA-treated diabetic group. Liver tissue samples from all groups were scanned using an FTIR reflectance spectrophotometer in reflection mode. FTIR reflectance spectra were collected in the wavenumber range of 400-4000 cm−1 using an attenuated total reflectance apparatus. Results: FTIR reflectance spectra were analyzed using PCA. The PCA score plot, which is an exploratory multivariate data set, revealed complete segregation among the three groups’ liver samples based on changes in the variation of wavenumber position in the FTIR reflectance spectra, which indicated a clear effect of KBA solubility on treatments. Histological analysis showed an improvement in the liver tissues, with normal structures of hepatocytes exhibiting mild vacuolation in their cytoplasm. Conclusion: KBA improved the morphology of liver tissues in the diabetic mice and led to complete recovery of the damage observed in the diabetic control group. FTIR reflectance spectroscopy coupled with PCA could be deployed as a rapid, low-cost, and non-destructive detection method for evaluating treatment effects in diseased liver tissue based on the solubility of KBA.
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Affiliation(s)
- Issa Al Amri
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Fazal Mabood
- Institute of Chemical Sciences, University of Swat KP, Pakistan
| | - Isam T Kadim
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Abdulaziz Alkindi
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - A Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Sulaiman Al-Hashmi
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Ghulam Abbas
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Ahmed Hamaed
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Basant Ahmed
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Jawaher Al-Shuhaimi
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Samera Khalaf
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Jamaluddin Shaikh
- School of Pharmacy, College of Pharmacy and Nursing, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
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Al-Amri I, Kadim IT, AlKindi A, Hamaed A, Al-Magbali R, Khalaf S, Al-Hosni K, Mabood F. Determination of residues of pesticides, anabolic steroids, antibiotics, and antibacterial compounds in meat products in Oman by liquid chromatography/mass spectrometry and enzyme-linked immunosorbent assay. Vet World 2021; 14:709-720. [PMID: 33935417 PMCID: PMC8076474 DOI: 10.14202/vetworld.2021.709-720] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/05/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND AND AIM Meat is a rich source of many nutrients and plays a vital role in human life however, meat safety is one of the top priorities of great concern for consumers today. More than 90% of human exposure to harmful materials is due to consumption of contaminated meat products. This study was designed to compare four valid analytical methods for the determination of organochlorine pesticides 2,4 D (2,4-dichlorophenoxyacetic acid), dichlorodiphenyldichloroethylene/dichlorodiphenyltrichloroethane, alachlor, organophosphate, anabolic steroids (progesterone, testosterone, and estrogen), antibiotics (tetracycline, sulfonamides, gentamycin, and cephalexin), antibacterial compounds (Macrolide, ß-Lactam, Chloramphenicol, Sulphur drugs, and Gentamicin) residues in 135 beef, buffalo, and sheep meat samples (fresh, frozen meats, minced, and sausage samples) of local, regional, and international brands available in Omani markets. MATERIALS AND METHODS Triplicate meat samples from each brand within each species were extracted with acetonitrile and purified with acetonitrile-saturated n-hexane to remove all impurities. To dry the sample after heating, the residue was passed across a Sep-Pak C18 cartridge for sample cleaning before gas chromatography (GC) (Brand GCMS-QP2010 Plus) coupled with different detectors, including a mass spectrometer or GC-electron capture detector (GC-ECD). Liquid chromatography/mass spectrometry (LC-MS) was also employed for the quantification of the residues in meat products. Enzyme-linked immunosorbent assay (ELISA) kits were employed to assess veterinary drug residues, anabolic steroids, and pesticides. The CHARM II instrument was employed to detect chloramphenicol, gentamicin, sulfa-drug, ß-lactam, and macrolide residues in meat and meat product samples. RESULTS A thin-layer chromatographic (TLC) method should be considered as another method of choice to determine concentrations of veterinary drugs and anabolic steroids. The TLC results were validated by LC-MS. The three described methods permit the multi-residue analysis of anabolic steroid residue levels of 0.06-1.89 ppb in meat product samples. There were three violative residues of anabolic steroids in red meat products that were above the maximum residue limits (MRLs). Although, the levels of organochlorine pesticides and antibiotic concentrations in meat products were below the MRLs, the long-term consumption is considered a health hazard and will affect the wellbeing of consumers. CONCLUSION The four techniques (GC, high-performance liquid chromatography, ELISA and CHARM II) provided results that were reliable and precise for the detection of chessssmical residues in meat and meat products.
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Affiliation(s)
- Issa Al-Amri
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Isam T. Kadim
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Abdulaziz AlKindi
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Ahmed Hamaed
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Rabea Al-Magbali
- Department of Animal and Veterinary Sciences, College of Agriculture and Marine Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Samera Khalaf
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Khdija Al-Hosni
- Natural and Medical Sciences Research Center, University of Nizwa, PO Box 33, PC 616, Birkat Al-Mouz, Nizwa, Sultanate of Oman
| | - Fazal Mabood
- Institute of Chemical Sciences, University of Swat, Khyber Pakhtunkhwa, Pakistan
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Al-Amri IS, Kadim IT, Alkindi A, Khalaf SK, Hamaed A, Al-Yaqoobi SS, Al-Harrasi AS, Al-Hashmi SA, Al-Maasbi AA, Al-Harthy RS, Al-Shabibi AS, Al-Amri AI. Effects of Prenatal Tobacco Smoke on Cerebellum Histomorphological Changes at Critical Developmental Stages in CD-1 Mice. INT J MORPHOL 2021. [DOI: 10.4067/s0717-95022021000100318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Al-Abri AS, Mahgoub O, Kadim IT, Al-Marzooqi W, Goddard SR. Effects of feeding fish–wheat bran meal on performance and meat quality of Omani sheep. Journal of Applied Animal Research 2017. [DOI: 10.1080/09712119.2016.1150843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Abdullah S. Al-Abri
- Agricultural Experiment Station, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khod, Sultanate of Oman
| | - Osman Mahgoub
- Department of Animal & Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khod, Sultanate of Oman
| | - Isam T. Kadim
- Department of Animal & Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khod, Sultanate of Oman
| | - Waleed Al-Marzooqi
- Department of Animal & Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khod, Sultanate of Oman
| | - Stephen R. Goddard
- Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khod, Sultanate of Oman
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Ibrahim GA, Nour IA, Al-Maqbali R, Kadim IT. Effect of age on concentrations of nutrients in four muscles of the Sudanese dromedary (Camelus dromedaries) camel. Journal of Applied Animal Research 2016. [DOI: 10.1080/09712119.2016.1232266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ghada A. Ibrahim
- Department of Meat Production, College of Animal Production, University of Bahri, Khartoum, Sudan
| | - Ikhlas A. Nour
- Department of Meat Science, Faculty of Animal Production, University of Khartoum, Khartoum, Sudan
| | - Rabea Al-Maqbali
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Isam T. Kadim
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman
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Ibrahim GA, Nour IA, Kadim IT. Effect of Age on Quality Characteristics and Composition of Muscles of Sudanese Camel (Camelus dromedarius). J CAMEL PRACT RES 2015. [DOI: 10.5958/2277-8934.2015.00033.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Al-Abri AS, Mahgoub O, Kadim IT, Al-Marzooqi W, Goddard SJ, Al-Farsi M. Processing and evaluation of nutritive value of fish silage for feeding Omani sheep. Journal of Applied Animal Research 2014. [DOI: 10.1080/09712119.2013.875909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kadim IT. Influence of feeding intake and type of muscle on quality and histochemical characteristics of dromedary camel (Camelus dromedarius) meat. J CAMEL PRACT RES 2014. [DOI: 10.5958/2277-8934.2014.00003.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mahgoub O, Kadim IT, Al-Marzooqi W, Al-Lawatia SA, Al-Abri AS. Effects of feed intake of a complete concentrate diet on performance of omani camels raised under stall-feeding. J CAMEL PRACT RES 2014. [DOI: 10.5958/2277-8934.2014.00004.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kadim IT, Mahgoub O, Al-Maqbaly RS, Annamalai K, Al-Ajmi DS. Effects of age on fatty acid composition of the hump and abdomen depot fats of the Arabian camel (Camelus dromedarius). Meat Sci 2013; 62:245-51. [PMID: 22061418 DOI: 10.1016/s0309-1740(01)00254-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2001] [Revised: 11/12/2001] [Accepted: 12/15/2001] [Indexed: 11/28/2022]
Abstract
This study aimed to quantify concentrations of fatty acids in the hump and abdomen fats of three different age groups of camel. Hump and abdomen fats were extracted from eight each of one-humped camels (Camelus dromedarius) of three age groups: group 1 (<1 year old), group 2 (1-3 years old) and group 3 (>3 years old). The fatty acid methyl ester concentrations of these fats were determined by gas-liquid chromatography (GLC). The percentage of fat in the hump (H) and abdomen (A) fats was significantly (P<0.05) lower for group 1 (H 92.0% and A 94.3%) than for group 2 (H 97.4% and A 97.2%) and group 3 (H 97.6% and A 97.5%), on a dry matter basis. Hump and abdomen fats from the three different groups had similar fatty acid patterns with more saturated than unsaturated fatty acids. The saturated fatty acids in the hump fats accounted for 58.3, 67.6, and 63.0% of the total fatty acids for groups 1, 2 and 3, respectively; group 1 had significantly (P<0.05) lower saturated and higher unsaturated fatty acid concentrations than group 2. The iodine numbers were significantly (P<0.05) higher in group 1 than either group 2 or 3. Palmitic acid (C16:0) was the major fatty acid in hump fat with 32.06, 32.90 and 34.37%, followed by oleic acid (C18:1) 33.65, 21.66 and 28.91.0% and stearic acid (C18:0) 18.85, 24.13 and 20.74% for groups 1, 2 and 3, respectively. Group 1 had significantly higher (P<0.05) oleic acid and lower stearic acid concentrations than group 2. The melting point of both hump and abdomen fats varied between the age groups. This study indicated that age has an effect on the fatty acid composition and the melting point of hump and abdomen fats in one-humped Arabian camels.
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Affiliation(s)
- I T Kadim
- Animal and Veterinary Sciences Department, College of Agriculture, Sultan Qaboos University, PO Box 34, Al-Khoud, 123, Muscat, Sultanate of Oman
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Kadim IT, Al-Karousi A, Mahgoub O, Al-Marzooqi W, Khalaf SK, Al-Maqbali RS, Al-Sinani SSH, Raiymbek G. Chemical composition, quality and histochemical characteristics of individual dromedary camel (Camelus dromedarius) muscles. Meat Sci 2012; 93:564-71. [PMID: 23273465 DOI: 10.1016/j.meatsci.2012.11.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 08/15/2012] [Accepted: 11/03/2012] [Indexed: 11/29/2022]
Abstract
This study characterized the chemical composition, quality and histological traits of six muscles from 10 dromedary carcasses. There were significant differences in moisture, fat, protein, mineral, saturated and unsaturated fatty acid contents between muscles. The longissimus thoracis (LT) had the highest cooking loss (33.5%) and triceps brachii (TB) the lowest (29.2%). The shear force value of semitendinosus (ST), semimembranosus (SM) and biceps femoris (BF) were significantly higher than infraspinatus (IS), TB and LT. The LT had significantly higher values for L*, a*, b* than ST. The SM had the lowest MFI (65.3), while IS had the highest value (75.8). The ST significantly had the highest and lowest proportions of Type I and Type IIA muscle fibers, respectively than other muscles. This study indicated that composition, quality, and histochemical parameters varied among camel muscles and the knowledge of this variation allows for better marketing and processing of camel meat.
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Affiliation(s)
- I T Kadim
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34 Al-Khoud, Muscat, Oman.
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Kadim IT, Mahgoub O, Al-Ajmi DS, Al-Maqbaly RS, Al-Saqri NM, Ritchie A. An evaluation of the growth, carcass and meat quality characteristics of Omani goat breeds. Meat Sci 2012; 66:203-10. [PMID: 22063949 DOI: 10.1016/s0309-1740(03)00092-5] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2003] [Revised: 03/30/2003] [Accepted: 04/14/2003] [Indexed: 11/19/2022]
Abstract
Body weight, growth, carcass and meat quality characteristics were evaluated in three breeds of goats (Batina, Dhofari and Jabal Akdhar) in Oman. Fourteen intact male goats from each breed were used. Jabal Akdhar goats had significantly heavier slaughter, empty body, and carcass weights and higher growth rates than Dhofari and Batina goats. Jabal Akdhar goats had significantly heavier internal organs than the other two breeds. Dressing-out percent (based on empty body weight) of goats ranged between 53 and 57%, with the Dhofari goats having the highest value. Longissimus muscle dimensions varied between the three breeds, with Jabal Akdhar having a significantly larger area than Batina with Dhofari in between. Dhofari goats produced significantly shorter and wider carcasses than Batina and Jabal Akhdar goats. Carcass cuts were significantly heavier in Jabal Akdhar than the other two breeds. Four muscles (Mm. longissimus dorsi, biceps femoris, semitendinosus, and semimembranosus) from both sides of each carcass were subjected to two different ageing periods (1 day vs. 6 day) and evaluated for ultimate pH, expressed juice, percent cooking loss, colour (L*, a* and b*), and Warner-Bratzler shear force. Breed had a significant influence on pH and percent cooking loss but not on expressed juice, shear force value and colour (CIE L*,a*, b* values). Muscles from the Batina goats had significantly higher ultimate pH values and lower percent cooking loss than Dhofari and Jabal Akdhar goats. Ageing from 1 to 6 days increased tenderness significantly (27%), but decreased cooking loss by 5%.
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Affiliation(s)
- I T Kadim
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University PO Box 34, Al-Khoud, 123, Sultanate of Oman
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Mahgoub O, Babiker HA, Kadim IT, Al-Kindi M, Hassan S, Al-Marzooqi W, Eltahir YE, Al-Abri MA, Al-Khayat A, Al-Sinani KR, Hilal Al-Khanjari H, Costa V, Chen S, Beja-Pereira A. Disclosing the origin and diversity of Omani cattle. Anim Genet 2012; 44:336-9. [PMID: 22957920 DOI: 10.1111/j.1365-2052.2012.02399.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2012] [Indexed: 11/29/2022]
Abstract
Among all livestock species, cattle have a prominent status as they have contributed greatly to the economy, nutrition and culture from the beginning of farming societies until the present time. The origins and diversity of local cattle breeds have been widely assessed. However, there are still some regions for which very little of their local genetic resources is known. The present work aimed to estimate the genetic diversity and the origins of Omani cattle. Located in the south-eastern corner of the Arabian Peninsula, close to the Near East, East Africa and the Indian subcontinent, the Sultanate of Oman occupies a key position, which may enable understanding cattle dispersal around the Indian Ocean. To disclose the origin of this cattle population, we used a set of 11 polymorphic microsatellites and 113 samples representing the European, African and Indian ancestry to compare with cattle from Oman. This study found a very heterogenic population with a markedly Bos indicus ancestry and with some degree of admixture with Bos taurus of African and Near East origin.
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Affiliation(s)
- Osman Mahgoub
- Department of Animal & Veterinary Sciences, College of Agricultural & Marine Sciences, Sultan Qaboos University, PO Box 34, Al-Khod 123, Sultanate of Oman
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Kadim IT, Mahgoub O, Al-Marzooqi W, Khalaf S, Al-Sinawi SSH, Al-Amri I. Effects of transportation during the hot season, breed and electrical stimulation on histochemical and meat quality characteristics of goat longissimus muscle. Anim Sci J 2010; 81:352-61. [PMID: 20597893 DOI: 10.1111/j.1740-0929.2009.00722.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effects of transportation and electrical stimulation (90 V) on physiological, histochemical and meat quality characteristics of two breeds of Omani goats were assessed. Twenty 1-year-old male goats from each breed (Batina and Dhofari) were divided into two groups: 3 h transported during the hot season (42 degrees C day time temperature) and non-transported. Animals were blood-sampled before loading and prior to slaughter. Electrical stimulation was applied 20 min postmortem to 50% randomly selected carcasses of both breeds. Temperature and pH decline of the Longissimus was monitored. Ultimate pH, shear force, sarcomere length, myofibrillar fragmentation index, expressed juice, cooking loss and colour were measured from samples of Longissimus dorsi muscles. Electrical stimulation and transportation had a significant effect on most biochemical and meat quality characteristics of Longissimus dorsi. The transported goats had higher plasma cortisol (P < 0.01), adrenaline, nor-adrenaline and dopamine concentrations (P < 0.05) than non-transported goats. Electrical stimulation resulted in a significantly (P < 0.05) more rapid muscle pH fall during the first 12 h after slaughter. Muscles from electrically-stimulated carcasses had significantly (P < 0.05) longer sarcomeres, lower shear force value, a lighter colour (higher L* value), higher expressed juice and myofibrillar fragmentation index than those from non-stimulated ones. Meat from transported goats had significantly higher pH, expressed juice and shear force, but contained significantly lower sarcomere length and L* values than non-transported goats. The proportion of the myosin ATPase staining did not change as a function of stimulation, transportation or breed. These results indicated that subjecting goats to transportation for 3 h under high ambient temperatures can generate major physiological and muscle metabolism responses. Electrical stimulation improved quality characteristics of meat from both groups. This indicates that electrical stimulation may reduce detrimental effects of transportation on meat quality of Omani goats.
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Affiliation(s)
- Isam T Kadim
- Department of Animal & Veterinary Sciences, College of Agricultural and Marine Sciences, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman.
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Mahgoub O, Kadim IT, Al-Dhahab A, Bello RB, Al-Amri IS, Ambu Ali AA, Khalaf S. An Assessment of Omani Native Sheep Fiber Production and Quality Characteristics. ACTA ACUST UNITED AC 2010. [DOI: 10.24200/jams.vol15iss0pp9-14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Wool production and quality measurements were carried out on 100 Omani native female sheep (body weight 38.6 ± 5.5 kg; age 993 ± 488 d). Sheep were kept in partially shaded pens and fed ad libitum Rhodes grass hay (crude protein 8.83%) plus a daily amount of 200 g general ruminant concentrate (crude protein 16.5% DM). Animals were shorn once a year and samples were taken from the left mid-side site to determine fleece and fiber characteristics. The scanning electron microscope (SEM) was used to study the fine appearance of the wool fibers. A skin sample was used to study the histological arrangement and number of secondary and primary follicles. The greasy fleece weight (GFW) in Omani sheep ranged between 0.50- 2.65 kg (mean 1.12 ± 0.43 kg) and the GFW expressed as a percentage of BW ranged between 1.0-7.6 with a mean of 2.9 ± 1.16. Clean wool yield in Omani sheep fleece ranged between 57.1 and 88.4% with a mean of 76.4 ± 7.6. Omani sheep fleece contained various staple shapes and had a mean staple length of 22.9 ± 1.16 cm, 4.3 ± 0.8 crimps per staple; and a mean fiber diameter of 46 ± 12 µm. Electron microscopy revealed three types of fibers; wrap-around, angled type and polygonal and elongated scales. This study indicated a wide variation in the wool characteristics of Omani native sheep fleece, which suggested that selection may be employed to improve wool production and quality in these sheep.
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Kadim IT, Mahgoub O, Al-Marzooqi W, Khalaf SK, Mansour MH, Al-Sinani SSH, Al-Amri IS. Effects of electrical stimulation on histochemical muscle fiber staining, quality, and composition of camel and cattle Longissimus thoracis muscles. J Food Sci 2009; 74:S44-52. [PMID: 19200120 DOI: 10.1111/j.1750-3841.2008.00992.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effects of electrical stimulation on muscle fiber type, meat quality, and composition of Longissimus thoracis muscles from one-humped camels and Dofari Omani cattle of a comparable age range were investigated. A low-voltage electrical stimulation with 90 V, 14 Hz (pulse of 7.5-millisecond duration every 70 milliseconds) 20 min postmortem was applied. Samples from the left muscle were collected from 20 (2 to 3 y) camels and 24 cattle (1 to 3 y). For chemical composition, muscle samples were dried in a freeze dryer, and then ground to determine moisture, protein, fat, and ash. Macro- and micro-minerals were determined using an Inductively Coupled Plasma Emission Spectrometer. Quality characteristics of the meat were evaluated using shear force value, pH, sarcomere, myofibrillar fragmentation index, expressed juice, cooking loss percent, and CIE L*, a*, b* color values. Electrical stimulation resulted in a significantly (P < 0.05) more rapid pH fall in the muscle during the first 24 h after slaughter in both species. Muscles from electrically stimulated carcasses had significantly (P < 0.05) lower ultimate pH, longer sarcomere, and lower shear force values than those from nonstimulated carcasses. Lightness (L*), myofibrillar fragmentation, and expressed juice were significantly (P < 0.05) higher for stimulated than for nonstimulated muscles. Muscles of camels had significantly (P < 0.05) higher expressed juice, cooking loss percent, redness color (a*), and lower fat, Mg, K, and P than those from cattle. Electrical stimulation improved quality characteristics of meat from both species. This indicates that meat quality of local camel and cattle can be improved by electrical stimulation and consequently improves their acceptability to consumers and better marketability.
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Affiliation(s)
- I T Kadim
- Dept. of Animal & Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos Univ., Al-Khoud, Muscat, Sultanate of Oman.
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Mahgoub O, Kadim IT, Al-Busaidi MH, Annamalai K, Al-Saqri NM. Effects of feeding ensiled date palm fronds and a by-product concentrate on performance and meat quality of Omani sheep. Anim Feed Sci Technol 2007. [DOI: 10.1016/j.anifeedsci.2006.07.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Al-Habsi K, Johnson EH, Kadim IT, Srikandakumar A, Annamalai K, Al-Busaidy R, Mahgoub O. Effects of low concentrations of dietary cobalt on liveweight gains, haematology, serum vitamin B12 and biochemistry of Omani goats. Vet J 2007; 173:131-7. [PMID: 16324857 DOI: 10.1016/j.tvjl.2005.10.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Seventy-three, 10-week-old, newly weaned Omani goats of three different breeds, namely Dhofari (D), Batinah (B) and Jebel Akhdar (JA) were randomly divided into a control (n=38) and a treated group (n=35) for an experimental period of 10 months. Goats in both groups were fed 150 g/day per head of a pelleted concentrate, based on body weight and their requirements and Rhodes grass hay ad libitum, containing 0.12 and 0.10 mg/kg DM cobalt, respectively. Goats in the treated group also received bi-monthly subcutaneous injections of 2000 microg hydroxycobalamin. In contrast to the treated goats, the control animals of all breeds experienced a severe decrease in their serum vitamin B(12) levels, developed pale mucous membranes, appeared scruffy and two breeds (D and B) had significantly lower weight gains from month 5. Untreated kids of all breeds had significant decreases in their red blood cell counts and erythrocyte indices after approximately four months. Controls developed low total serum protein levels whilst activities of alkaline phosphatase and aspartate aminotransferase significantly increased. Although it is widely assumed that goats are more resistant to cobalt deficiency than sheep this is apparently not true for Omani goats. Based on experimental data from previously reported studies and those from the present study it can be concluded that the reduction in weight gains in D and B goats is related to their lower digestibility coefficients for dry matter, crude protein and energy while the increase in alkaline phosphatase and aspartate aminotransferase are associated with developing hepatic lipidosis.
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Affiliation(s)
- Khalid Al-Habsi
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, P.O. Box 34, Al-Khod 123, Muscat, Oman
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Tabook NM, Kadim IT, Mahgoub O, Al-Marzooqi W. The effect of date fibre supplemented with an exogenous enzyme on the performance and meat quality of broiler chickens. Br Poult Sci 2006; 47:73-82. [PMID: 16546800 DOI: 10.1080/00071660500475160] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
1. Two experiments were conducted to evaluate the use of date fibre as a partial replacement of maize as a source of energy for growing broiler chicken. In experiment 1, date fibre was given alone to determine apparent metabolisable energy (AME) and apparent ileal digestibility of amino acids and crude fibre. 2. Date fibre had lower AME content (8.7 vs 13.6 MJ/kg) and apparent ileal digestibility coefficients for dry matter (0.35 vs 0.83), crude fibre (0.20 vs 0.54) and amino acids. 3. Based on the results of experiment 1, a growth study was conducted to test the effect of exogenous enzymes on the nutritive value of date fibre (experiment 2). 4. Three date fibre contents (5, 10 and 15%) with and without enzyme supplementation were evaluated. Daily feed intake, body weight gain and feed conversion ratio were measured. At the end of experiment 2, 160 birds were randomly selected and slaughtered to evaluate carcase and meat quality traits as well as measuring ileal viscosity. 5. Substitution of maize by 10 and 15% date fibre significantly depressed AME. Enzyme supplementation did not improve crude fibre digestibility. The inclusion of date fibre in the diets except at 5% decreased average daily gains, feed intake and feed conversion ratio. 6. Addition of date fibre caused a significant increase in the weights of total digestive tract, pancreas and caecum. Addition of date fibre or the exogenous enzyme had no significant effect on carcase or meat quality characteristics. 7. Date fibre increased ileal digesta viscosity compared to the control. Addition of the exogenous enzyme decreased the viscosity of the basal diets but had no effect on the date fibre diets.8. This study indicated that date fibre can be included at levels of 5% in broiler diets without affecting performance.
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Affiliation(s)
- N M Tabook
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman
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Mothershaw AS, Consolacion F, Kadim IT, Raisi ANA. The role of education and training levels of slaughterhouse workers in the cross-contamination of carcasses. ACTA ACUST UNITED AC 2006. [DOI: 10.1504/ijpti.2006.011657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mahgoub O, Kadim IT, Al-Jufaili SM, Al-Saqry NM, Annamalai K, Ritchie A. Evaluation of sun-dried sardines as a protein supplement for Omani sheep. Anim Feed Sci Technol 2005. [DOI: 10.1016/j.anifeedsci.2005.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Johnson EH, Al-Habsi K, Kaplan E, Srikandakumar A, Kadim IT, Annamalai K, Al-Busaidy R, Mahgoub O. Caprine hepatic lipidosis induced through the intake of low levels of dietary cobalt. Vet J 2004; 168:174-9. [PMID: 15301766 DOI: 10.1016/j.tvjl.2003.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2003] [Indexed: 11/22/2022]
Abstract
Forty-one, 10-week-old newly weaned goats were randomly allocated into two groups, namely control (n=22) and treated (n=19). Kids in both groups were fed Rhodegrass hay ad libitum that contained < 0.1 mg/kg DM cobalt and 150 g/day of a commercially prepared ruminant concentrate that contained approximately 0.12 mg/kg DM cobalt. This diet provided the minimum daily requirement of cobalt as specified for sheep. The treated goats were supplemented with bi-monthly subcutaneous injections of 2000 microg of hydroxycobalamin. All goats were weighed and blood samples collected monthly for haematological, clinical biochemical and serum vitamin B12 analysis. After a 10-month experimental period the goats were slaughtered. The control animals exhibited significantly (P<0.05) lower weight gains, and had dry scruffy hair coats. In addition, there was a decline in erythrocyte counts, mean haemoglobin, packed cell volume, mean corpuscular volume, mean corpuscular haemoglobin and mean corpuscular haemoglobin concentration. Controls also exhibited significantly (P<0.05) lower levels of total serum proteins and elevated levels of serum alkaline phosphatase compared to treated goats. Fourteen (63.6%) of the control goats developed pathology consistent with reported field cases of hepatic lipidosis associated with low liver levels of cobalt. Only one (5.3%) of the treated goats developed hepatic lipidosis. Contrary to previous reports that suggested that goats are less sensitive to low levels of dietary cobalt than sheep, it is apparent that this is not the case with Omani goats. This is the first report of the induction of hepatic lipidosis in goats due to feeding low levels of cobalt in their diet.
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Affiliation(s)
- Eugene H Johnson
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, P.O. Box 34, Al-Khod 123, Muscat, Sultanate of Oman.
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Mahgoub O, Kadim IT, Al-Ajmi DS, Al-Saqry NM, Al-Abri AS, Richie AR, Annamalai K, Forsberg NE. The effects of replacing Rhodes grass (Chloris gayana) hay with ghaf (Prosopis cineraria) pods on the performance of Omani native sheep. Trop Anim Health Prod 2004; 36:281-94. [PMID: 15080543 DOI: 10.1023/b:trop.0000016829.63985.2c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A feeding trial using various levels of dry pods of ghaf (Prosopis cineraria) was carried out with 28 Omani native male sheep. Individual feed intake and body weight were determined for 50 days to allow assessment of the effects of the feeds on growth, feed intake, feed conversion and carcase measurements. The ripened ghaf pods contained 91% dry matter (DM), 13.5% crude protein (CP), 14.3% crude fibre (CF), 1.3% ether extract (EE) and 5.2% ash (on DM basis). Four levels of ghaf (0, 15%, 30% and 45%) were used with corresponding decreasing proportions of Rhodes grass (RGH) hay. Animals fed rations containing RGH as the sole source of roughage and no ghaf grew faster (135 g/day) and had better feed conversion than those fed various levels of ghaf. Sheep fed 15% ghaf gained reasonably well (90 g/day) and had carcase attributes similar to those fed no ghaf. Sheep fed 30% ghaf still gained weight but those fed 45% ghaf lost weight. Negative effects on growth appeared to occur after 6 weeks of feeding ghaf.
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Affiliation(s)
- O Mahgoub
- Department of Animal and Veterinary Sciences, College of Agricultural and Marine Science, Sultan Qaboos University, PO Box 34, Al-Khod, Sultanate of Oman.
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Kadim IT, Johnson EH, Mahgoub O, Srikandakumar A, Al-Ajmi D, Ritchie A, Annamalai K, Al-Halhali AS. Effect of low levels of dietary cobalt on apparent nutrient digestibility in Omani goats. Anim Feed Sci Technol 2003. [DOI: 10.1016/s0377-8401(03)00174-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kadim IT, Moughan PJ, Ravindran V. Ileal amino acid digestibility assay for the growing meat chicken--comparison of ileal and excreta amino acid digestibility in the chicken. Br Poult Sci 2002; 43:588-97. [PMID: 12365516 DOI: 10.1080/0007166022000004507] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
1. The apparent and true amino acid digestibilities in sorghum, wheat, soyabean meal, meat-and-bone meal, fish meal and blood meal for growing meat chickens were determined using an assay based on the collection of digesta from the terminal ileum and comparison was made with digestibility values determined using an excreta-based assay. 2. Five-week-old meat chickens were given maize-soyabean meal basal diet or mixtures of the basal diet and test diets containing the 6 ingredients as the sole source of dietary protein (50:50 on weight basis). Apparent amino acid digestibility values of assay diets at ileal and excreta levels were calculated using chromic oxide as the indigestible marker. True digestibility values were calculated using endogenous outputs determined by feeding a protein-free diet. Amino acid digestibilities of the ingredients were calculated by difference. 3. The site of measurement had no influence on endogenous amino acid output, the exceptions being aspartic acid and glutamic acid. The output of these two amino acids was higher in the excreta. 4. Significant differences were found between ileal and excreta-based digestibility of certain amino acids in some ingredients, with excreta values being usually higher than the ileal values, indicating a net catabolism of amino acids in the large intestine. The degree of net amino acid disappearance was found to be variable among amino acids and ingredients. In general, threonine had the lowest digestibility at the ileal level and, compared with other amino acids, the highest degredation during passage through the hindgut. 5. The results showed that digestibility determination based on excreta collection will overestimate the uptake for some amino acids in some feeds. The degree of overestimation was often considerable, ranging from 8.9% (apparent digestibility of threonine in soyabean meal) to 56% (apparent digestibility of aspartic acid in wheat). It is concluded that digestibility values measured at the terminal ileum provide a more reliable measure of amino acid availability than those measured in the excreta.
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Affiliation(s)
- I T Kadim
- Institute of Food, Nutrition and Human Health, Massey University, Palmerston North, New Zealand.
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Kadim IT, Moughan PJ. Ileal amino acid digestibility assay for the growing meat chicken--effect of the imposition of a fasting period and the nature of the test diet. Br Poult Sci 1997; 38:285-90. [PMID: 9280356 DOI: 10.1080/00071669708417988] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
1. The objective of this study was to investigate the effects of cold-pelleting, the length of the fasting period before feeding of the test diet and the nature of the test diet on apparent ileal nitrogen (N) digestibility in the broiler chicken. 2. Four-week-old broiler chickens were given a pelleted or non-pelleted maize/soyabean meal (basal) diet. The birds were starved for 24 h, given a single test meal (25 g) by intubation and killed 4 h after the start of feeding by administration of a barbiturate, to allow sampling of ileal digesta (terminal 15 cm). Cold-pelleting did not affect apparent ileal N digestibility. 3. Four-week-old broiler chickens were fasted for 12 or 24 h and then received a test meal (1 h free access) of either a pelleted soyabean meal or a pelleted meat-and-bone meal diet or were continuously fed on one of the two diets. The imposition of a fast did not affect apparent ileal N digestibility. However, a 24 h fasting procedure was preferred, as the between animal variation for apparent ileal N digestibility was lower than for the 12 h fast or for continuous feeding. 4. Four-week-old broiler chickens were given either semi-synthetic starch-based diets containing maize, wheat bran, meat-and-bone meal or fish meal as the sole sources of protein or each of these diets in combination with the basal diet (50:50 on a dry matter basis). With the exception of the maize diet, the apparent ileal N digestibility values calculated by correcting for the digestibility of the basal dietary component were significantly lower than when digestibility was determined directly using a diet in which the respective proteins were the sole protein source. This implies that interactions between the dietary ingredients influence estimates of apparent ileal N digestibility.
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Affiliation(s)
- I T Kadim
- Monogastric Research Centre, Massey University, Palmerston North, New Zealand
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Kadim IT, Moughan PJ. Development of an ileal amino acid digestibility assay for the growing chicken--effects of time after feeding and site of sampling. Br Poult Sci 1997; 38:89-95. [PMID: 9088619 DOI: 10.1080/00071669708417946] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
1. The study aimed to establish the optimum time after ingestion and optimum sampling site for the development of an ileal amino acid digestibility assay for broiler chickens. 2. To establish the optimal sampling time, 4-week-old broiler chickens were given one of 6 protein sources (meat-and-bone, soyabean, cottonseed, fish, maize and wheat meals) as the sole source of protein in a test diet. The diets contained chromic oxide as an indigestible marker. The birds were starved for 24 h, fed and subsequently killed for sampling of ileal digesta (terminal 15 cm) at 2, 3, 4, 5 and 6 h after the start of feeding. 3. For the soyabean, fish, wheat and maize meal diets, sampling time had no significant effect on apparent ileal nitrogen digestibility, whereas for the meat-and-bone and cottonseed meal diets there was a significant quadratic effect of sampling time. The amount of digesta collected was maximised and the mean apparent ileal nitrogen digestibility had the lowest variation around the 4 h sampling time. 4. To establish the optimum sampling site, 4-week-old chickens were given either a meat-and-bone, a soyabean or a wheat bran meal-based diet. The birds were killed 4 h after the start of feeding, and digesta were sampled from 0-10, 0-15, 0-20 or 0-25 cm of terminal ileum. 5. There was no significant effect of sampling site on the apparent ileal digestibility of dietary nitrogen. The terminal 15 cm of ileum was considered a preferred site for sampling ileal digesta from broiler chickens.
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Affiliation(s)
- I T Kadim
- Department of Animal Science, Massey University, Palmerston North, New Zealand
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Kadim IT, McCutcheon SN, Purchas RW, Wickham GA. Manipulation of adult body composition by treatment of the neonatal rat with growth hormone and prolactin. Growth Regul 1996; 6:201-5. [PMID: 8971548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Previous studies involving fetal decapitation or hypophysectomy, and the treatment of neonates with hormones or antibodies, have suggested that changes in pituitary hormone status during the perinatal period may influence later body composition. In the present study, rats were treated for the first 21 days of life with twice daily subcutaneous injections of saline, recombinant bovine growth hormone (bGH) or pituitary ovine prolactin (oPRL). The bGH and oPRL were administered at doses of 0.2 or 0.4 microgram/g bodyweight/day. One-third of the rats in each treatment group were slaughtered at each of days 21, 60 and 120 of life and measurements made of: length and weight of the body; weights of bones and muscle groups in the hindlimb; weights of four fat depots (120-day group only); and the content of nitrogen (N) and fat in the carcass. bGH, but not oPRL, treatment increased weight of the femur and humerus (across ages) but neither treatment had marked effects on weights of muscle groups, carcass weight or carcass N content at any age. Both bGH and oPRL treatment significantly reduced weight of the subcutaneous scapular fat depot and reduced carcass fat content, but only in animals aged 120 days (i.e. 99 days after the cessation of treatment). It is concluded that treatment of rats with bGH and oPRL during the immediate postnatal period specifically retards the ability of animals to deposit body fat in later life by mechanisms which differ from those involved in the classical lipolytic/antilipogenic effects of bGH.
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Affiliation(s)
- I T Kadim
- Department of Animal Science, Massey University, Palmerston North, New Zealand
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