Potensi Lactobacillus Acidophilus Dan Lactobacillus Fermentum Dari Saluran Pencernaan Ayam Buras Asal Lahan Gambut Sebagai Sumber Probiotik

Probiotics are cultures of microorganisms included in the diets of cattle through mixing to ensure the availability of a population of organisms in the gut. The culture contains a specific bacterium, resistant in dry situations. Probiotics may contain one or more strains of microorganisms in the form of powder, tablets, granules or paste and can be given to livestock is directly through the mouth or mixed with water and feed. Probiotic products in general form of Lactic Acid Bacteria (LAB), and some of the genus Bacillus, but not all types of Lactic Acid Bacteria and Bacillus included in probiotic bacteria. Lactobacillus casei and Lactobacillus acidophilus reported to act as probiotics and to increase body weight in chickens. Similarly, Bacillus circulans and Bacillus Sp isolated from the digestive tract Kerinci local ducks can be used as a source of probiotics on chickens and ducks and effective for use as a substitute for antibiotics. This study aimed to determine the type and distribution of the dominant microbes in each segment of the digestive tract of chickens reared in peatlands, through isolation technique, identification and selection, and testing probiotic properties, including resistance to acid, resistance to bile salts and koagregasi test between microbes. Results Identification of the chicken digestive tract bacteria dipe; ihara in peatlands obtained Lactobacillus acidophilus and Lactobacillus fermentum. The test results obtained on the nature of the two types of probiotic bacteria were resistant to a pH ranging from pH 2.0 to pH 4, for 14 hours of incubation, that was resistant to bile salts up to 14 hours of incubation and hade a positive coaguration. In conclusion, probiotics production is expected to be applied to poultry, especially chickens

Theta Vectors and Quantum Theta Functions

In this paper, we clarify the relation between Manin's quantum theta function and Schwarz's theta vector in comparison with the kq representation, which is equivalent to the classical theta function, and the corresponding coordinate space wavefunction. We first explain the equivalence relation between the classical theta function and the kq representation in which the translation operators of the phase space are commuting. When the translation operators of the phase space are not commuting, then the kq representation is no more meaningful. We explain why Manin's quantum theta function obtained via algebra (quantum tori) valued inner product of the theta vector is a natural choice for quantum version of the classical theta function (kq representation). We then show that this approach holds for a more general theta vector with constant obtained from a holomorphic connection of constant curvature than the simple Gaussian one used in the Manin's construction. We further discuss the properties of the theta vector and of the quantum theta function, both of which have similar symmetry properties under translation.Comment: LaTeX 21 pages, give more explicit explanations for notions given in the tex

Evaluasi Nutrisi Tepung Ikan Rucah yang Diolah Menggunakan Probiotik dan Precursor-Prebiotik dalam ransum Ayam Broiler

Penelitian ini bertujuan untuk mengevaluasi kualitas nutrisi tepung ikan rucah (TI) yang diolah menggunakan probiotik bakteri asam laktat (PRO) dikombinasikan dengan precursor prebiotik berupa bungkil kelapa (BK) atau bungkil inti sawit (BIS) dalam ransum ayam broiler. Sebanyak 384 ekor ayam umur satu hari (MB 202-P) unsexed, didistribusikan ke dalam 32 unit kandang koloni (12 ekor/unit), menurut rancangan acak lengkap faktorial 2 x 3 dengan empat ulangan (kecuali kontrol 8 ulangan). Faktor pertama adalah penggunaan 2 jenis TI (TI-PRO-BK dan TI-PRO-BIS), sedangkan faktor ke-dua adalah 3 taraf penggunaannya di dalam ransum (5%; 7,5%; dan 10%) menggantikan TI-KOM. Ransum kontrol diformulasikan menggunakan TI-KOM 10% (tanpa TI-PRO). Hasil penelitian menunjukkan bahwa penggunaan TI-PRO-BK 10% dan TI-PRO-BIS 10% dalam ransum ayam broiler menghasilkan performan pertumbuhan, bobot karkas, bobot daging dada, dan efisiensi penggunaan protein yang nyata lebih tinggi (P<0,05) dibandingkan TI-KOM 10%, namun tidak nyata dalam mempengaruhi jumlah Lactobacillus dan E. coli di dalam cairan usus. Disimpulkan bahwa TI-PRO-BK dan TI-PRO-BIS memiliki kualitas nutrisi yang lebih baik dibandingkan dengan TI-KOM, sehingga berpotensi untuk digunakan sebagai sumber protein sekaligus sumber probiotik, prebiotik dan postbiotic dalam pakan ayam broiler

Potensi Bakteri Bacillus dan Lactobacillus sebagai Probiotik untuk Mengurangi Pencemaran Amonia pada Kandang Unggas

The experiment was conducted in two phases. The first experiment was to observe the effectivity of six culture of Bacillus and Lactobacillus bacteria for reducing fecal ammonia. The second experiment was to evaluate the application of Bacillus and Lactobacillus bacteria as probiotic for reducing ammonia feses and litter in broiler chicken house and observe its effect on the performance. Six bacteria culture consisting of three species of Bacillus bacteria (Bacillus subtilis, Bacillus cereus and Bacillus thuringiensis) and three species of Lactobacillus bacteria (Lactobacillus acidophillus, Lactobacillus bulgaricus and Streptococcus thermophillus) were used in the first experiment and 200 Day Old Chicks CP 707 were used in application of probiotic at the second experiment. Probiotic treatment were administered by drinking water, sprayed on the litter, combination of drinking water and spraying, and without probiotic as the control. The result of the first experiment showed that the six bacterial cultures and their combination significantly (P<0, 05) reduced feses ammonia and pH. The result of the second experiment showed that the probiotic treatment was significantly (P<0, 05) reduced ammonia of fresh fecal and litter, but was not significantly improving the performance of the chickens. The conclusion of this experiment was that the combination of six bacterial cultures of Bacillus and Lactobacillus as probiotic was effective to reduce ammonia pollution in poultry hous

Penampilan Produksi Ayam Broiler Yang Diberi Bacillus Circulans Dan Bacillus SP. Selama Periode Pemulihan Setelah Pembatasan Ransum

The present study was designed to investigate the efficacy of Bacillus circulans and Bacillus sp. as probiotic during realimentation period on performance of broiler chickens. Three hundred of 7 days-old unsexed broiler chicken of Cobb commercial strain were used in the experiment. The treatments were: control ration was fed ad libitum (P-0), ration with energy restriction at 1.5xBW0.67EM kcal/day without (P-1) and with (P-2) probiotic supplementation during realimentation period, and ration with energy restriction at 2.25xBW0.67EM kcal/day without (P-3) and with (P-4) probiotic supplementation during realimentation period. Feed restriction was applied from 7 to 14 days of age. The experiment was arranged as a completely randomized design with 5 treatments and 6 replications. The results showed that feed intake and body weight gain of chickens submitted to early feed restriction on P-1, P-2, P-3 and P-4 were significantly lower (P < 0.05) than that of chicken fed control diet. During realimentation period, body weight gain of chicken given P-1 and P-2 was lower (P < 0.05) than those obtained from P-3, P-4 and P-0 from 14 to 28 days of age. Compensatory growth only occur during the 28 to 35 days of age on P-4 and had similar performance with control at age of 42 days. It was concluded that energy restriction 2.25xBW0.67EM kcal/day for 7 days (7 to 14 days of age) with supplementation of probiotic B. circulans and Bacillus sp. (P-4) during realimentation period showed similar compensatory growth and body weight, but production index and feed cost better than control

Bost-Connes systems and F₁-structures in Grothendieck rings, spectra, and Nori motives

We construct geometric lifts of the Bost-Connes algebra to Grothendieck rings and to the associated assembler categories and spectra, as well as to certain categories of Nori motives. These categorifications are related to the integral Bost-Connes algebra via suitable Euler characteristic type maps and zeta functions, and in the motivic case via fiber functors. We also discuss aspects of F₁-geometry, in the framework of torifications, that fit into this general setting

Del Pezzo surfaces of degree 1 and jacobians

We construct absolutely simple jacobians of non-hyperelliptic genus 4 curves, using Del Pezzo surfaces of degree 1. This paper is a natural continuation of author's paper math.AG/0405156.Comment: 24 page

On Macroscopic Energy Gap for qq-Quantum Mechanical Systems

The q-deformed harmonic oscillator within the framework of the recently introduced Schwenk-Wess $q$-Heisenberg algebra is considered. It is shown, that for "physical" values $q\sim1$, the gap between the energy levels decreases with growing energy. Comparing with the other (real) $q$-deformations of the harmonic oscillator, where the gap instead increases, indicates that the formation of the macroscopic energy gap in the Schwenk-Wess $q$-Quantum Mechanics may be avoided.Comment: 6 pages, TeX, PRA-HEP-92/1

Covariant differential complexes on quantum linear groups

We consider the possible covariant external algebra structures for Cartan's 1-forms on GL_q(N) and SL_q(N). We base upon the following natural postulates: 1. the invariant 1-forms realize an adjoint representation of quantum group; 2. all monomials of these forms possess the unique ordering. For the obtained external algebras we define the exterior derivative possessing the usual nilpotence condition, and the generally deformed version of Leibniz rules. The status of the known examples of GL_q(N)-differential calculi in the proposed classification scheme, and the problems of SL_q(N)-reduction are discussed.Comment: 23 page