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Journal of the Indonesian Tropical Animal Agriculture
Published by Universitas Diponegoro
ISSN : 20878273     EISSN : 24606278     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
Journal of the Indonesian Tropical Animal Agriculture (JITAA) is a double blind peer-reviewed publication devoted to disseminate all information contributing to the understanding and development of animal agriculture in the tropics by publication of original research papers
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 718 Documents
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Effect of coconut husk extract on broiler chicken performance, pH and microbial composition of digesta, and small intestine histomorphology R. Rusdi; A. Hasanuddin; M. Mulyati; F. Fatmawati
Journal of the Indonesian Tropical Animal Agriculture Vol 47, No 2 (2022): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.47.2.119-127

Abstract

Plants that contain a large number of bioactive substances have been used as alternative phytobi-otic additives. The objectives of the current study were to investigate the efficacy of coconut husk ex-tract on broiler performance, ileal digesta characteristic and small intestine morphology. Two hundred and fifty day-old-chicks (DOC) were randomly placed in five treatment groups with five replicates each, and the chickens were reared until six weeks old. Basal ration was hand mixed to ensure the re-quirements in the starter period and finisher period. Treatments were basal ration only (TCT-), basal ration with 40 ppm tetracycline (TCT+), basal ration with 100 ppm coconut husk extract (T100), basal ration with 400 ppm coconut husk extract (T400) and basal ration with 700 ppm coconut husk extract (T700). The variables included feed intake, live weight gain (LWG), feed to gain ratio (FCR), breast meat quality, pH and microbial composition of digesta and small intestine morphology. Data were sta-tistically analyzed using analysis of variances and comparison test using the Duncan’s multiple range test. The results demonstrated that the feed additives significantly increased feed intake, LWG, breast meat protein content, villi height in the ileum, and the height:crypt depth ratio in the duodenum and ileum, and significantly decreased the abundance of Escherichia coli and Staphylococcus aureus and the pH of digesta (P<0.05). Therefore, coconut husk extract could be applied as a phytobiotic feed ad-ditive for broiler chickens to stimulate the growth of broilers, suppress colonies of harmful bacteria in the small intestine and enhance the improvement of intestinal morphology.
Influence of selenium and vitamin E supplementation in a fish oil-based diet on broiler performance, visceral organs, meat fatty acid composition, and antioxidant deposition A. Darmawan; S. Sumiati; T. Suryati; A. Wijaya; D. A. Fauziyah; R. Nadia
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 2 (2026): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.2.94-105

Abstract

This study aimed to evaluate the influence of selenium (Se) from selenomethionine and vitamin E (VE) from α-tocopherol acetate supplementation in a fish oil-based diet on broiler performance, visceral organs, fatty acids, VE, and Se in meat. A total of 200 one-day-old Cobb broiler chickens were reared for 35 days using a completely randomised design with 4 treatments and 5 replicates. The treatments were T0: control diet containing 3% fish oil; T1: T0 + Se (0.3 ppm) + VE (200 ppm); T2: T0 + Se (0.6 ppm) + VE (300 ppm); T3: T0 + Se (0.9 ppm) + VE (400 ppm). The treatments did not affect broiler performance (P>0.05). Compared to the T0, the T3 group improved Se and VE levels in meat by 105.4% and 83.2%, respectively, and had a lower colon length than the T0 and T1 groups (P<0.05). The T2 group increased total monounsaturated fatty acids (MUFAs), polyunsaturated fatty acids (PUFAs), and omega-6 compared to the T0 and T1 groups (P<0.05). It was concluded that the inclusion of 400 ppm VE and 0.9 ppm Se in a diet rich in fatty acids effectively enhanced the deposition of Se, VE, and omega-3 in the meat as well as reduced colon length without adverse effect on the production performance of broiler chickens. The combination of 300 ppm VE and 0.6 ppm Se was the optimal dose for increasing the deposition of MUFAs, PUFAs, and omega-6 in the meat.
Effect of encapsulated M. speciosa fruit extract on growth performance, amino acid digestibility and oxidative status in high density broilers L. Krismiyanto; V. D. Yunianto; S. Sumarsih; S. Sugiharto
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 2 (2026): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.2.149-160

Abstract

This study aimed to evaluate the effects of encapsulation of Medinilla speciosa fruit extract in feed on the oxidative status, amino acid digestibility, and performance of broiler chickens raised at high stocking densities. The M. speciosa contains polyphenols, flavonoids, tannins, and saponins. This study used 290 unsexed Ross strain broiler chicks aged 8 days, with an average body weight of 196.01 ± 1.12 g. M. speciosa fruit extract (MSFE) and encapsulated M. speciosa fruit extract (EMSFE) were used as sources of phytobiotics. This study was designed with four treatments and five replicates. The treatments tested were T0: normal density of 10 birds/m² without MSFE or EMSFE; T1: high density of 16 birds/m² without MSFE or EMSFE; T2: high density of 16 birds/m² + 0.08% MSFE; and T3: high density of 16 birds/m² + 0.08% EMSFE. The results showed that the addition of MSFE and EMSFE to the diet had a significant effect (P<0.05) on performance (feed intake, daily weight gain, and feed conversion ratio), protein and amino acid digestibility, oxidative status (malondialdehyde, superoxide dismutase, and glutathione peroxidase), as well as total lactic acid bacteria, Escherichia coli, and small intestine pH. The conclusion is that incorporating 0.08% encapsulation of M. speciosa fruit extract notably enhances the overall health, absorption of essential amino acids, and growth of broiler chickens raised in high-density conditions, suggesting its promise as an effective phytobiotic feed additive.
comparative study between Shami and Holstein cows for longevity and productive lifetime traits under subtropical conditions O. Almasri; S. Abou-Bakr; M. A. M. Ibrahim; M. A. A. Awad
Journal of the Indonesian Tropical Animal Agriculture Vol 48, No 2 (2023): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.48.2.89-100

Abstract

This study aimed to compare the longevity and productive lifetime traits between Shami and Hol-stein cows under subtropical conditions, in addition to assess the effect of age at first calving (AFC), first lactation milk yield (FLMY), year and season of first calving on the studied traits in both breeds. The available data included 495 records for Shami and 1129 records for Holstein from birth to disposal date during the period from 1982 to 2014.The studied traits were lifespan (LS), productive life (PL), cow efficiency index (CEI), number of calvings (NC), lifetime milk production (LMP), total lactation periods (TLP), lifetime daily milk production (LDMP), and total dry periods (TDP). The least squares means of LS, PL, CEI and NC were 96.3±1.80 months, 73.2±2.80 months, 64.9±0.008 % and 4.3±0.12 calving for Shami cows in respective order. The corresponding figures for Holstein cows were 66.1±1.81 months, 43.5±2.81 months, 56.4±0.012 % and 3.5±0.19 calving, respectively. The means of LMP, TLP, LDMP and TDP were 7713±563.38 kg, 787±33.43 days, 2.7±0.13 kg and 890±25.55 days for Shami cows and 14406±875.77 kg, 1049±51.96 days, 5.9±0.20 kg and 275±39.72 days for Hol-stein, respectively.The effect of breed was highly significant (P<0.01) on all studied traits. Cows for both breeds with AFC less than 24 months had more PL and NC. Also, cows with the highest average FLMY had the highest LMP, LDMP and TLP. It could be concluded that under the subtropical condi-tions, Shami cows exhibit superiority for longevity traits compared to Holstein ones.
Effect of addition of different citrus juice on the quality of se'i made from the meat of cull Bali cows with different body condition scores G. E. M. Malelak; I. G. N. Jelantik
Journal of the Indonesian Tropical Animal Agriculture Vol 47, No 2 (2022): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.47.2.128-137

Abstract

Various attempts are required to improve the quality of se’i as a traditional beef processed product from The Province of East Nusa Tenggara, Indonesia, since the raw beef commonly used is from thin cull Bali cows. Using raw beef from fatter cows may improve the quality of se’i, but the addition of organic acids such as different citric juices may also improve the quality of se’i. This research aimed to evaluate the quality of se’i processed from beef of cull Bali cows with different body condition scores (BCS) and added citrus juice (CJ) during marination to improve aroma, reduce lipid oxidation and bac-terial contamination. A completely randomized design (CRD) with a 3 x 3 factorial arrangement was assigned in this study. The first factor was the BCS of the cull cow i.e., BCS2, BCS3, and BCS4. The second factor was citrus juice, i.e. no citrus juice as control (NC), Lime juice (LJ), and Kaffir lime juice (KLJ). Results showed that the addition of KLJ improved the aroma and acceptability of se’i, but the addition of LJ failed to improve those parameters in BCS 2. In all BCS, the addition of lime or kaffir lime juice reduced the pH, residual nitrite, lipid oxidation, and the total plate count (TPC). How-ever, in BCS 4 only KLJ reduced the pH but it did not reduce the residual nitrite. In conclusion, the addition of KLJ was more effective to improve the sensory value of se’i, particularly when it was made from thin cull Bali cows (BCS 2). Meanwhile, to improve the shelf-life and the food safety of se’i as indicated by the ability to reduce the residual nitrite and thiobarbituric acid-reactive substances (TBARS) in Se'I, the addition of LJ proven to be more effective than KLJ. To produce the highest qual-ity of se’i, it is suggested to process beef from fat cull Bali cows (BCS 4) with the addition of lime juice for best sensory quality or with the addition of lime juice for longer shelf-life and minimum bac-terial contamination.
Phytogenic modulation of reproduction in rabbit does using Gmelina arborea leaf extract under tropical conditions A. L. Obinna; B. C. Amaefule; J. I. Ugwuoke; C. E. Dim; N. S. Machebe
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 2 (2026): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.2.106-113

Abstract

The present study evaluated the effects of aqueous Gmelina arborea leaf extract (GALE) on reproductive, postpartum and lactation performances of rabbit does under tropical conditions. A total of 80 chinchilla rabbits (aged 7–8 months with average body weight of 1.10–1.14 kg) were used in the 16- week study. The study was laid out in a completely randomized design (CRD) with rabbits randomly assigned to four dietary treatments (GALE0 = 0 ml GALE /l of water, GALE 300= 300 ml GALE /l of water, GALE 600 = 600 ml GALE /l of water, and GALE 900= 900 ml GALE /l of water), replicated four times with five rabbits per replicate. Results revealed that GALE significantly (P ˂ 0.01) influenced reproductive, postpartum, and lactation parameters. Does administered GALE 600 recorded the highest conception rate (95%), kit survival to weaning (84.4%) and lowest pre-weaning mortality (15.6%). GALE 900 inclusion reduced feed and water intake and depressed litter survival. Postpartum body weights, feed and water intake were improved at GALE 600 with reduced lactation weight loss (90.60 g). Similarly, kits from GALE 600 exhibited the highest birth and weaning weights and greatest pre-weaning daily gain (11.26 g/kit/day). In conclusion, GALE 600 optimized reproduction in rabbit does under tropical conditions.
Evaluation of Ruta graveolen, coriander and basil seed extracts as natural additives on productive performance, blood profiles and egg quality of White Leghorn layers S. Tessema; M. Girma; M. Yirgalem; N. Ameha; T. Zeryehun
Journal of the Indonesian Tropical Animal Agriculture Vol 48, No 2 (2023): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.48.2.101-112

Abstract

The study was conducted to investigate the effect of mixtures of Ruta graveolen (Rg), coriander (C), and basil (B) seed extracts on productive performance, blood profiles, egg quality and egg chemi-cal composition of White Leghorn (WL) layers. One hundred eighty WL layers at twenty- six weeks of age were randomly distributed to four treatments, each replicated three times with fifteen layers per replications in a completely randomized design and kept on a deep litter system for eight weeks. The treatments (T) were water containing mixtures of Ruta graveolen, coriander, and basil seed extract with the proportion of 0 ml (T1), 2 ml (T2), 4ml (T3), and 6 ml (T4) per liter of water. The hen day egg pro-duction (HDEP) was significantly (P<0.05) higher for layers in T3 (50.75%). Serum cholesterol and LDL (low-density lipoprotein) cholesterol levels decreased significantly while, HDL (high-density lipoprotein) cholesterol and globulin increased significantly (P<0.01) when compared with the control. There were no significant differences (P>0.05) among treatments in egg weight, albumen weight, yolk weight, shell weight and thickness. Generally; the mixtures of Rg, C, and B seed extracts in 4ml/1lt in drinking water could increase HDEP and egg quality and reduce serum cholesterol.
Effects of yellow mealworm larvae (Tenebrio molitor) and turmeric powder (curcuma) on laying hens performance, physical and nutritional eggs quality A. Ait-Kaki; Y. Chebli; S. El Otmani; N. Moula
Journal of the Indonesian Tropical Animal Agriculture Vol 47, No 2 (2022): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.47.2.87-96

Abstract

Soybean meal is the main source of protein in laying hens’ diet that is generally imported. This study aims to explore the yellow mealworm larvae (Tenebrio molitor) “TM”, and curcuma effects on laying hens’ performances, and physical and nutritional eggs quality. One hundred laying hens were divided randomly into 4 groups. The first group (Control) received a standard commercial diet (SCD), while test groups (TM, TP, and TM-TP) received SCD with respectively 5% TM, 0.50 % curcuma, and 5% TM and 0.50% curcuma. According to the results, Control and TM reduced significantly hen’s bodyweight in the experiment end. However, the curcuma incorporation and TM (TP and TM-TP) kept the stability of bodyweight during the whole period. No effect of diet was observed on feed intake and egg laying rate. Diet had a significant effect on eggs physical parameters (weight, freshness, thickness and rupture force). The mixture of TM and curcuma permitted eggs with good physical parameters. For nutritional quality of eggs, all groups had the same content of ALA and DHA. However, eggs of group receiving a mixture of TM and curcuma had the lowest cholesterol content. Thus, TM and curcuma could reduce soybean importation dependence with improving eggs quality.

Page 72 of 72 | Total Record : 718

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