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Animal Science Journal, Nihon Chikusan Gakkaihō

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https://www.readbyqxmd.com/read/28422370/leisure-riding-horses-research-topics-versus-the-needs-of-stakeholders
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/28402007/interactions-of-bovine-oocytes-with-follicular-elements-with-respect-to-lipid-metabolism
#12
Ewelina Warzych, Piotr Pawlak, Marcin Pszczola, Adam Cieslak, Zofia E Madeja, Dorota Lechniak
Among many factors, lipid metabolism within the follicular environment emerges as an important indicator of oocyte quality. In the literature a crucial significance is described concerning follicular fluid (FF) composition as well as messenger RNA (mRNA) expression in follicular cells. The aim of this study was to describe the relationship between oocyte, FF and follicular cells with regard to lipid metabolism. The set of data originating from individual follicles comprised: lipid droplets (LD) number in oocytes (BODIPY staining), mRNA expression of seven genes in cumulus and granulosa cells (SCD, FADS2, ELOVL2, ELOVL5, GLUT1, GLUT3, GLUT8; real time polymerase chain reaction) and fatty acid (FA) composition in FF (gas chromatography)...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28401999/effects-of-aflatoxin-b1-on-mitochondrial-respiration-ros-generation-and-apoptosis-in-broiler-cardiomyocytes
#13
Wen-Jun Wang, Zhi-Liang Xu, Cheng Yu, Xiao-Hong Xu
Aflatoxin B1 (AFB1) develops various toxic effects in the liver by impairing mitochondrial function, inducing cell apoptosis. However, little is focused on its toxicity to broiler cardiomyocytes (BCMs). Here, the mitochondrial membrane potential (MMP), reactive oxygen species (ROS) generation, cardiac troponin T (cTnT) location, apoptosis induced by AFB1, and antioxidative genes were investigated in BCMs. It was found that AFB1 evoked intracellular ROS generation, and induced apoptosis in BCMs. AFB1 treatment resulted in increased percentage of apoptotic cells, increased location range of cTnT in cytoplasm, upregulated messenger RNA (mRNA) expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and downregulated mRNA expressions of Mn-superoxide dismutase in BCMs...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28370901/temporal-changes-in-liver-tissue-metabolome-of-lambs-fed-low-quality-roughage
#14
Wenbin Xu, Naoto Okayama, Atsushi Iwasawa, Masato Yayota
Early experience with low-quality roughage may induce adaptations in ruminants' metabolism. This study was conducted to explore the variation in the hepatic metabolomes of lambs fed low-quality roughage beginning early in life. Five lambs were fed Sudan grass hay (crude protein (CP): 4.6% of the dry matter (DM), neutral detergent fiber, 68.5% of DM) for 6 months during time periods P1, P2 and P3, which consisted of 2 months each. The metabolizable energy (ME) and CP intake satisfied lambs' maintenance requirements in P1 and P2, but the ME intake was 78...
April 2, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28370998/effects-of-forage-ensiling-and-ration-fermentation-on-total-mixed-ration-ph-ruminal-fermentation-and-performance-of-growing-holstein-zebu-cross-steers
#15
Watcharawit Meenongyai, Virote Pattarajinda, Alexander M Stelzleni, Jutarat Sethakul, Monchai Duangjinda
Our objective was to determine the effect of forage ensiling and ration fermentation on total mixed ration pH, ruminal fermentation and animal performance. Thirty Holstein-Zebu cross steers were allotted to feeding treatments for 188 days in a randomized complete block design including: fresh grass-total mixed ration (GTMR; pH 4.7), grass silage-TMR (STMR; pH 4.0) and fermented-TMR (FTMR; pH 3.5). Average daily gain for STMR was greatest during the first 3 months period; however, that for FTMR tended to be greater than GTMR during the second 3 months period (P < 0...
March 30, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28370846/effects-of-supplementation-of-iodixanol-to-semen-extender-on-quality-and-fertilization-ability-of-frozen-thawed-thai-native-bull-sperm
#16
Phirawit Chuawongboon, Saksiri Sirisathien, Jatuporn Pongpeng, Denpong Sakhong, Takashi Nagai, Thevin Vongpralub
This study investigates the effects of iodixanol supplementation in varied concentrations to Tris egg yolk (TEY) extender on the quality and fertilization ability of frozen-thawed sperm of Thai native bulls. Each ejaculate was divided into four different groups, as follows: sperm were treated with TEY extender (control group) and TEY extender supplemented with three different concentrations of iodixanol (1.25%, 2.50% and 5.00%). Semen straws were frozen in liquid nitrogen vapor. After thawing, sperm motility characteristics, viability, plasma membrane integrity and acrosome integrity were determined...
March 30, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28370816/effect-of-supplemental-%C3%AE-carotene-compared-to-retinyl-palmitate-on-fatty-acid-profile-and-expression-of-mrna-from-genes-involved-in-vitamin-a-metabolism-in-beef-feedlot-cattle
#17
Kaitlin N Condron, Jolena N Waddell, Matt C Claeys, Ronald P Lemenager, Jon P Schoonmaker
To examine the effects of dietary β-carotene (βC) or retinyl palmitate (RP) on fatty acid (FA) profile and mRNA expression, samples were collected from 24 Angus-cross calves that were allotted to four treatments consisting of RP supplemented at 2200 IU/kg, and synthetic β-carotene (SβC) supplemented at one, five or 10 times RP. Longissimus muscle (LM) cis-9, trans-11 conjugated linoleic acid was greater in RP compared to SβC1X (P = 0.04). The polyunsaturated:saturated FA increased linearly (P = 0.04) in the LM as dietary SβC increased...
March 30, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28370760/effect-of-radiation-on-chemical-composition-and-protein-quality-of-cottonseed-meal
#18
Zohreh Bahraini, Somayyeh Salari, Mohsen Sari, Jamal Fayazi, Mehdi Behgar
This study was conducted to compare the effects of electron beam (EB) and gamma ray (GR) irradiation treatments at doses of 10, 20 and 30 kGy on chemical composition, protein quality and protein digestibility of cottonseed meal (CSM). GR irradiation in all doses significantly decreased the crude fiber of samples compared to raw CSM. Free and total gossypol content of CSM was decreased significantly by utilizing both types of irradiation in a dose-dependent manner. Also, EB irradiation caused decrease in free and total gossypol content more than that of GR irradiation...
March 30, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28349625/effects-of-melatonin-on-maturation-histone-acetylation-autophagy-of-porcine-oocytes-and-subsequent-embryonic-development
#19
Zhen Chen, Xiaoyuan Zuo, Hui Li, Renyun Hong, Biao Ding, Chengxue Liu, Di Gao, Hui Shang, Zubing Cao, Weiping Huang, Xiaorong Zhang, Yunhai Zhang
Melatonin (MLT) is an endogenous hormone with roles in animal germ cell development. However, the effect of MLT on porcine oocyte maturation and its underlying mechanisms remain largely unknown. Here, we investigated the effects of exogenous MLT on oocyte maturation, histone acetylation, autophagy and subsequent embryonic development. We found that 1 nmol/L MLT supplemented in maturation medium was the optimal concentration to promote porcine oocyte maturation and subsequent developmental competence and quality of parthenogenetic embryos...
March 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28317222/standardized-total-tract-digestibility-of-phosphorus-in-various-inorganic-phosphates-fed-to-growing-pigs
#20
Woong Bi Kwon, Beob Gyun Kim
An experiment was conducted to determine the standardized total tract digestibility (STTD) of phosphorus (P) in five sources of inorganic phosphate fed to growing pigs, including dicalcium phosphate (DCP), monodicalcium phosphate (MDCP), monocalcium phosphate (MCP), tricalcium phosphate (TCP) and monosodium phosphate (MSP, reagent grade). Six barrows (42.4 ± 1.1 kg) individually housed in metabolism crates were allotted to a 6 × 6 Latin square design with six dietary treatments and six periods. Each experimental period consisted of a 4 day adaptation period and a 5 day collection period...
March 20, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
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