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Animal Science Journal, Nihon Chikusan Gakkaihō

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https://www.readbyqxmd.com/read/28517370/evaluation-of-dietary-methionine-requirement-of-male-korean-native-ducks-for-3%C3%A2-weeks-post-hatching
#1
Jaehong Yoo, Young-Joo Yi, Samiru S Wickramasuriya, Eunjoo Kim, Taeg Kyun Shin, Nu Ri Kim, Jung Min Heo
A total of 336 1-day-old male Korean native ducks (KND) were used in a completely randomized design with seven dietary methionine levels (0.30-0.90% with 0.1% increment) to determine the methionine requirement of male Korean native ducks for 3 weeks after hatching. Each dietary treatment had six replicates with eight ducklings per pen. One duckling from each pen (n = 6) was sacrificed to weigh empty body and drumsticks at the end of the experiment. Final body weight and weight gain of 3 weeks old KND were increased with increasing dietary methionine levels up to 0...
May 18, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28516730/control-of-pseudomonas-mastitis-on-a-large-dairy-farm-by-using-slightly-acidic-electrolyzed-water
#2
Kazuhiro Kawai, Yasunori Shinozuka, Ikuo Uchida, Kazuhiko Hirose, Takashi Mitamura, Aiko Watanabe, Kana Kuruhara, Reiko Yuasa, Reiichiro Sato, Ken Onda, Hajime Nagahata
The disinfection effect of slightly acidic electrolyzed water (SAEW) use in a farm where Pseudomonas mastitis has spread was evaluated. Despite the application of antibiotic therapy and complete cessation of milking infected quarters, numerous new and recurrent Pseudomonas aeruginosa clinical mastitis infections (5.8-7.1% of clinical mastitis cases) occurred on the farm from 2003 to 2005. Procedural changes and equipment modifications did not improve environmental contamination or the incidence of Pseudomonas mastitis...
May 18, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28504476/thirty-years-of-interferon-tau-research-past-present-and-future-perspective
#3
REVIEW
Kazuhiko Imakawa, Rulan Bai, Keigo Nakamura, Kazuya Kusama
The year 2017 marks the 30th year since the discovery was made of amino acid and complementary DNA sequences of ovine trophoblast protein-1 (oTP-1), later renamed as interferon-tau (IFNτ). Ovine TP-1 was originally found as a secretory product of sheep conceptuses that rescues maternal corpus luteum (CL) and in fact, the uterine infusion of oTP-1 extended inter-estrous intervals. Finding this signaling molecule as an IFN-like sequence was surprising to the scientific community in reproduction because a homologous molecule in humans possesses anti-viral and anti-prolific activity and is often used in human medicines...
May 15, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28485116/effect-of-grape-pomace-on-fermentation-quality-and-aerobic-stability-of-sweet-sorghum-silage
#4
Ping Li, Yixin Shen, Minghong You, Yu Zhang, Jiajun Yan, Daxue Li, Shiqie Bai
The objective of this study was to evaluate the effect of grape pomace (GP) with different adding levels (0%, 5%, 10% and 15%, fresh matter basis), alone (GP-LAB) or in combine with an inoculant LAB (GP+LAB), on the fermentation quality and aerobic stability of sweet sorghum silage. After 90 days of ensiling in vacuumized mini-silos, silages were subject to a 7-day aerobic stability test, in which chemical, microbial and polyphenol composition were measured. In the GP-LAB group, adding GP decreased (P < 0...
May 8, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28485052/evaluation-of-the-thermal-property-of-bovine-intramuscular-adipose-tissue-using-differential-scanning-calorimetry
#5
Noriyuki Kimura, Nana Nishimura, Nagako Iwama, Yoshito Aihara, Yasuki Ogawa, Yuji Miyaguchi
The thermal property of bovine intramuscular adipose tissue (IAT) was evaluated using differential scanning calorimetry (DSC) and compared with the melting point temperature (MP) of the fat extract of IAT, which was measured using the slip point method. The beef samples were classified according to the beef marbling score (BMS). Beef with a high BMS contained less protein than that with middle or low BMS. Beef with a high BMS contained significantly more fat than that with a low BMS (P < 0.05). The endothermic point temperature (EP) of IAT, measured by DSC, was significantly higher than the MP of IAT fat (P < 0...
May 8, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28444869/assessment-of-the-usage-of-biodegradable-polymeric-matrix-in-vaginal-devices-to-sustain-progesterone-release-in-cows
#6
José Rodrigo Valim Pimentel, Milton Maturana Filho, Lucio Cardozo-Filho, José Augusto M Agnelli, Jefter Nascimento, Ed Hoffmann Madureira
The usage of timed artificial insemination (TAI) at a low cost leading to better reproductive rates has been the aim of several research groups in the field. Usually during TAI protocols, sustained progesterone (P4 ) release devices are employed. Most devices are constituted of a nylon skeleton covered with a silicon layer with P4 . A device based on biopolymers was developed in order to reduce costs and decrease its environmental impact. In this study, we compared the kinetics of sustained progesterone release among devices manufactured with a polymeric blend made of polyhydroxybutyrate-valerate (PHBV) and poly-ε-caprolactone (PCL) (DISP) which were compared with DIB® (Internal Bovine Device) used as the control...
April 25, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28436180/control-mechanisms-for-producing-antimicrobial-factors-in-ruminant-mammary-gland
#7
REVIEW
Naoki Isobe
Mastitis, a symptom of inflammation in mammary tissue by infection with various kinds of bacteria, causes huge economic losses in the milk industry. One of the popular methods for treatment of mastitis is antibiotics, although this prohibits milk shipping and sometimes causes resistant microbes. Therefore, a new strategy to treat mastitis without antibiotics is eagerly required around the world. Antimicrobial factors belong to innate immunity and can start their function extremely early after bacterial stimulation...
April 24, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28436168/effects-of-nitrogen-fertilizer-and-harvesting-stage-on-photosynthetic-pigments-and-phytol-contents-of-italian-ryegrass-silage
#8
Renlong Lv, Mabrouk El-Sabagh, Taketo Obitsu, Toshihisa Sugino, Yuzo Kurokawa, Kensuke Kawamura
This study aimed to investigate the effects of nitrogen (N) fertilizer application and harvesting stage on the contents of chlorophyll, phytol and carotenoids (β-carotene and lutein) in Italian ryegrass herbage before and after ensiling, and the extent of phytol preservation after ensiling. Three rates of N fertilizer (0, 60 and 120 kg N/ha) were applied by top-dressing as an additional fertilizer. The herbage harvested at booting stage (27 weeks of age) or heading stage (29 weeks of age) were wilted for 1 day, then ensiled for 60 days using a small-scale pouch system...
April 24, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28436163/social-defeat-models-in-animal-science-what-we-have-learned-from-rodent-models
#9
REVIEW
Atsushi Toyoda
Studies on stress and its impacts on animals are very important in many fields of science, including animal science, because various stresses influence animal production and animal welfare. In particular, the social stresses within animal groups have profound impact on animals, with the potential to induce abnormal behaviors and health problems. In humans, social stress induces several health problems, including psychiatric disorders. In animal stress models, social defeat models are well characterized and used in various research fields, particularly in studies concerning mental disorders...
April 24, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28422370/leisure-riding-horses-research-topics-versus-the-needs-of-stakeholders
#10
REVIEW
Iwona Janczarek, Izabela Wilk
Horses intended for leisure riding do not undergo any selection and most often retired sports horses or defective horses are chosen, as a low selling price determines their purchase by a leisure riding center. Unfortunately, horses bought at low prices usually have low utility value, are difficult to handle, require a special or individual approach and do not provide satisfaction in riding. However, neither modern horse breeding nor scientific research address the need to breed horses for leisure activities...
April 19, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28422357/comparative-analysis-of-the-merino-sheep-and-iberian-red-deer-abomasum-during-prenatal-development
#11
Antonio Franco, Javier Masot, Eloy Redondo
The aim of this study is to describe differences in the ontogenesis of the abomasum in sheep (domestic ruminant) and deer (wild ruminant). Histomorphometric and immunohistochemical analysis were carried out on 50 embryos and fetuses of the sheep and 50 red deer from the first prenatal stages until birth. To compare similar periods of gestation in both species, we calculate the percentages of gestation. The appearance of the abomasum was earlier in the red deer (22% gestation) than in the sheep (25% gestation)...
April 19, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402076/studies-on-supplementary-desalted-mother-liquor-on-digestibility-of-nutrients-ruminal-fermentation-and-energy-and-nitrogen-balance-in-thai-native-cattle
#12
Takashi Sakai, Wanna Angthong, Motoharu Takeda, Kazato Oishi, Hiroyuki Hirooka, Hajime Kumagai
Four Thai native steers were used to determine the adequate levels of supplementary desalted mother liquor (DML) for energy and nitrogen balances and ruminal fermentation. The crude protein and sodium chloride contents of DML were 25.5% and 60.3% on a dry matter (DM) basis, respectively. A 4 × 4 Latin square design experiment was conducted by adding different amounts of DML to three experimental diets (T1: 1.1%, T2: 2.2%, T3: 3.4% sodium chloride concentration with supplementary DML on a DM basis) and comparing their effects with those of a control diet (C) containing 1...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402051/silage-fermentation-and-ruminal-degradation-of-stylo-prepared-with-lactic-acid-bacteria-and-cellulase
#13
Mao Li, Hanlin Zhou, Xuejuan Zi, Yimin Cai
In order to improve the silage fermentation of stylo (Stylosanthes guianensis) in tropical areas, stylo silages were prepared with commercial additives Lactobacillus plantarum Chikuso-1 (CH1), L. rhamnasus Snow Lact L (SN), Acremonium cellulase (CE) and their combination as SN+CE or CH1 + CE, and the fermentation quality, chemical composition and ruminal degradation of these silages were studied. Stylo silages treated with lactic acid bacteria (LAB) or cellulase, the pH value and NH3 -N ⁄ total-N were significantly (P < 0...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402050/effects-of-dietary-supplementation-with-tribasic-zinc-sulfate-or-zinc-sulfate-on-growth-performance-zinc-content-and-expression-of-zinc-transporters-in-young-pigs
#14
Bo Deng, Xihong Zhou, Jie Wu, Ciming Long, Yajun Yao, Hongxing Peng, Dan Wan, Xin Wu
An experiment was conducted to compare the effects of zinc sulfate (ZS) and tribasic zinc sulfate (TBZ) as sources of supplemental zinc on growth performance, serum zinc (Zn) content and messenger RNA (mRNA) expression of Zn transporters (ZnT1/ZnT2/ZnT5/ZIP4/DMT1) of young growing pigs. A total of 96 Duroc × Landrace × Yorkshire pigs were randomly allotted to two treatments and were fed a basal diet supplemented with 100 mg/kg Zn from either ZS or TBZ for 28 days. Feed : gain ratio in pigs fed TBZ were lower (P < 0...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402035/screening-and-investigation-lactobacillius-spp-to-improve-secale-cereale-silage-quality
#15
Hye Sun Kim, Ouk Kyu Han, Sam Churl Kim, Min Jung Kim, Youn-Sig Kwak
Silage is a high-moisture-content forage that is used to feed livestock. Using silage as feed is economically feasible and suitable for cattle management. Secale cereale is considered as a high-quality forage plant. After the heading stage the biomass of S. cereale increases by up to 30%; however, lignification in the cell wall causes low fermentation efficiency and coefficient digestibility, and it may also be contaminated by mycotoxin-producing fungi and can impair the quality of the silage. Therefore, the aim of this study was to screen beneficial Lactobacillius spp...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402032/furosemide-loading-test-in-a-case-of-homozygous-solute-carrier-family-12-member-1-slc12a1-mutation-g-62382825g-a-p-pro372leu-in-japanese-black-cattle
#16
Kiyotoshi Hasegawa, Shinji Sasaki, Yoichi Sakamoto, Akifumi Takano, Megumi Takayama, Tomoko Higashi, Yoshikazu Sugimoto, Yasuaki Yasuda
Hydrallantois is the excessive accumulation of fluid in the allantoic cavity in a pregnant animal and is associated with fetal death. We recently identified a recessive missense mutation in the solute carrier family 12, member 1 (SLC12A1) gene (g.62382825G>A, p.Pro372Leu) that is associated with hydrallantois in Japanese Black cattle. Unexpectedly, we found a case of the homozygous risk-allele for SLC12A1 in a calf, using a PCR-based direct DNA sequencing test. The homozygote was outwardly healthy up to 3 months of age and the mother did not exhibit any clinical symptoms of hydrallantois...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402026/influence-of-riders-skill-on-plasma-cortisol-levels-of-horses-walking-on-forest-and-field-trekking-courses
#17
Ayaka Ono, Akihiro Matsuura, Yumi Yamazaki, Wakako Sakai, Kentaro Watanabe, Toshihiko Nakanowatari, Hiroshi Kobayashi, Mami Irimajiri, Koichi Hodate
The aim of this study was to evaluate the influence of rider's skill on the plasma cortisol levels of trekking horses on two courses, walking on field and forest courses (about 4.5 to 5.1 km each). Three riders of different skills did horse trekking (HT) in a tandem line under a fixed order: advanced-leading, beginner-second and intermediate-last. A total of six horses were used and they experienced all positions in both courses; a total of 12 experiments were done. Blood samples were obtained before HT, immediately after and 2 h after HT...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402014/advanced-treatment-technique-for-swine-wastewater-using-two-agents-thermally-polymerized-amorphous-silica-and-hydrated-lime-for-color-and-phosphorus-removal-and-sulfur-for-nitrogen-removal
#18
Teruaki Hasegawa, Yohei Kurose, Yasuo Tanaka
The efficacy of advanced treatment of swine wastewater using thermally polymerized, modified amorphous silica and hydrated lime (M-CSH-lime) for color and phosphorus removal and sulfur for nitrogen removal was examined with a demonstration-scale treatment plant. The color removal rate was approximately 78% at M-CSH-lime addition rates of > 0.055 wt/v%. The PO43--P removal rate exceeded 99.9% with > 0.023 wt/v%. pH of the effluent from the M-CSH-lime reactor increased with the addition rate till a maximum value of 12...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402009/genetic-relationships-between-temperament-of-calves-at-auction-and-carcass-traits-in-japanese-black-cattle
#19
Kazuya Takeda, Hiroshi Uchida, Keiichi Inoue
Correlations of calves' temperament with carcass traits were estimated to clarify the genetic relationships between them in Japanese Black cattle. The temperament records for 3128 calves during auction at a calf market were scored on a scale of 1 (calm) to 5 (nervous) as temperament score (TS), and the TS were divided into two groups (TSG): TS 1 and 2 comprised TSG 1, and 3 to 5 constituted TSG 2. Carcass data were obtained from 33 552 fattened cattle. A threshold animal model was used for analyzing the underlying liability for TSG, whereas a linear one was used for TS and carcass traits...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28402008/genome-wide-association-studies-reveal-additional-related-loci-for-fatty-acid-composition-in-a-duroc-pig-multigenerational-population
#20
Shuji Sato, Yoshinobu Uemoto, Takashi Kikuchi, Sachiko Egawa, Kimiko Kohira, Tomomi Saito, Hironori Sakuma, Satoshi Miyashita, Shinji Arata, Keiichi Suzuki
The aim of the present study was to detect quantitative trait loci affecting fatty acid composition in back fat and intramuscular fat in a Duroc pig population comprising seventh-generation pedigrees using genome-wide association studies (GWAS). In total, 305 animals were genotyped using single nucleotide polymorphisms (SNPs) array and five selected SNPs from regions containing known candidate genes related to fatty acid synthesis or metabolism. In total, 24 genome-wide significant SNP regions were detected in 12 traits, and 76 genome-wide suggestive SNP regions were detected in 33 traits...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
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