Effects of dietary organic or inorganic iron concentrations on productive performance, egg quality, blood measurements, and tissue iron concentrations in aged laying hens
In conclusion, dietary supplementation of organic Fe increases the eggshell color of aged laying hens. High supplemental levels of organic Fe in diets improve egg weight in aged laying hens. (Source: Animal Science Journal)
Source: Animal Science Journal - February 22, 2023 Category: Zoology Authors: Jong Hyuk Kim,
Hyun Woo Kim,
Chan Ho Kwon,
Sung Hoon Kwon,
Dong Yong Kil Tags: RESEARCH ARTICLE Source Type: research
The development of sleep ‐like posture expression with age in female Holstein calves
AbstractSleep plays an important role in cattle production and welfare. Therefore, this study aimed to investigate the development of sleep-like posture (SLP) expression in dairy calves from birth to the first calving as an indicator of their sleep behavior. Fifteen female Holstein calves were subjected. Daily SLP was measured eight times (0.5, 1, 2, 4, 8, 12, and 18 months and 23 months or 1 month before the first calving) using an accelerometer. Calves were kept in individual pens until weaning at 2.5 months old and then kept in the group. The daily SLP time decreased rapidly in early life; however, the rate of de...
Source: Animal Science Journal - February 21, 2023 Category: Zoology Authors: Michiru Fukasawa Tags: RESEARCH ARTICLE Source Type: research
Comparison of 2,5 ‐dimethyl‐4‐hydroxy‐3(2H)‐furanone, a volatile odor compound generated by the Maillard reaction, in cooked meat of various animal species and parts
In this study, we compared the amount of DMHF in cooked meat of various animal meat (Japanese black cattle beef, Australian beef, pork, and chicken) and parts (round, loin, thigh, and breast). Meat samples were heated at 230 °C, and then the amount of DMHF was measured using the solvent extraction methods. Moreover, the substrates (total free amino acid and glucose) used for the Maillard reaction were also measured to elucidate the relation between DMHF generation and nutrients in meat. DMHF was detected in all cooked meat samples, suggesting that DMHF is generated in meat regardless of animal species and parts. A signifi...
Source: Animal Science Journal - February 14, 2023 Category: Zoology Authors: Issei Yokoyama,
Motoko Ohata,
Yusuke Komiya,
Jun Nagasao,
Keizo Arihara Tags: RESEARCH ARTICLE Source Type: research
Effects of different coating materials on the morphological characteristics of chicken adenohypophyseal folliculo ‐stellate cells in vitro
AbstractChicken adenohypophyseal cells were cultured in plates coated with different materials, and their morphologies were examined to confirm the characteristics of chicken folliculo-stellate (FS) cells in vitro. The adenohypophyseal cells were dispersed with a collagenase/trypsin mixture in media and seeded in plates coated in either poly L-lysine (PLL), collagen, or laminin. After 7 days of culture, the cells were fixed and immunocytochemistry was performed. 5-Bromo-2′-deoxyuridine incorporation test indicated that the proliferation activity of the culture cells was different based on the coating materials, and it ...
Source: Animal Science Journal - February 9, 2023 Category: Zoology Authors: Shotaro Nishimura,
Shungo Yamahira,
Vishwajit S. Chowdhury,
Yoshinao Z. Hosaka Tags: RESEARCH ARTICLE Source Type: research
Effect of pseudopregnancy duration in nonpregnant sows on induced lactation
This study was conducted to examine the effects of different pseudopregnancy periods in nonpregnant sows on artificial lactation induction efficiency and milk composition. Sixteen pseudopregnant sows (n = 4 per group) were treated with 5 mg of estradiol dipropionate at 28 (Group D38), 35 (Group D45), 42 (Group D52), and 49 (Group D59) days after the end of estrus, followed by prostaglandin F2 α as 0.175-mg cloprostenol twice at 12 h intervals 10 days later. The overall success rate of lactation induction was 81.3%. The lactation rates were significantly higher in Groups D38, D45, and D59 (100.0%) than in Group ...
Source: Animal Science Journal - February 8, 2023 Category: Zoology Authors: Takayuki Kasazaki,
Hirokazu Tachino,
Yoshihiro Sakatsume,
Takehito Suzuki,
Michiko Noguchi Tags: SHORT COMMUNICATION Source Type: research
Effects of different coating materials on the morphological characteristics of chicken adenohypophyseal folliculo ‐stellate cells in vitro
AbstractChicken adenohypophyseal cells were cultured in plates coated with different materials, and their morphologies were examined to confirm the characteristics of chicken folliculo-stellate (FS) cells in vitro. The adenohypophyseal cells were dispersed with a collagenase/trypsin mixture in media and seeded in plates coated in either poly L-lysine (PLL), collagen, or laminin. After 7 days of culture, the cells were fixed and immunocytochemistry was performed. 5-Bromo-2′-deoxyuridine incorporation test indicated that the proliferation activity of the culture cells was different based on the coating materials, and it ...
Source: Animal Science Journal - February 8, 2023 Category: Zoology Authors: Shotaro Nishimura,
Shungo Yamahira,
Vishwajit S. Chowdhury,
Yoshinao Z. Hosaka Tags: RESEARCH ARTICLE Source Type: research
Effect of pseudopregnancy duration in nonpregnant sows on induced lactation
This study was conducted to examine the effects of different pseudopregnancy periods in nonpregnant sows on artificial lactation induction efficiency and milk composition. Sixteen pseudopregnant sows (n = 4 per group) were treated with 5 mg of estradiol dipropionate at 28 (Group D38), 35 (Group D45), 42 (Group D52), and 49 (Group D59) days after the end of estrus, followed by prostaglandin F2 α as 0.175-mg cloprostenol twice at 12 h intervals 10 days later. The overall success rate of lactation induction was 81.3%. The lactation rates were significantly higher in Groups D38, D45, and D59 (100.0%) than in Group ...
Source: Animal Science Journal - February 8, 2023 Category: Zoology Authors: Takayuki Kasazaki,
Hirokazu Tachino,
Yoshihiro Sakatsume,
Takehito Suzuki,
Michiko Noguchi Tags: SHORT COMMUNICATION Source Type: research
Acknowledgments to reviewers
(Source: Animal Science Journal)
Source: Animal Science Journal - February 2, 2023 Category: Zoology Tags: ACKNOWLEDGMENTS TO REVIEWERS Source Type: research
Interactive effects of dietary supplementation between illite and probiotic on productive performance, intestinal microflora, and blood profiles of laying hens
This study investigates the interactive effects of dietary illite and probiotic on productive performance, intestinal microflora, and blood profiles of laying hens. A total of 432 laying hens at 24 weeks old were allotted into six dietary groups. An experimental design was composed with a 3 (illite levels: 0, 0.3, and 0.6%) × 2 (probiotic levels: 0 and 0.2%). The probiotic based onBacillus subtilis,Saccharomyces cerevisiae, andB. licheniformis was used. There were interactions between illite and probiotic on total microbes andsalmonella of digesta. Higher egg production was observed in hens fed a diet supplemented wi...
Source: Animal Science Journal - January 31, 2023 Category: Zoology Authors: Chun Ik Lim,
Ju Eun Kim,
Kyu Bang Lee Tags: RESEARCH ARTICLE Source Type: research
Diversity of mitochondrial D ‐loop haplotypes from ancient Thracian horses in Bulgaria
AbstractThe domestication of the horse began possibly more than 5000 years ago in the western part of the Eurasian steppe, and according to the leading hypothesis, horses first spread from the Steppe toward the region of the Thracian culture, starting in the second half of the 2nd millennium BCE and flourished from the fifth to first centuries BCE, mainly located in present-day Bulgaria. We analyzed 17 horse bone remains excavated from Thracian archaeological sites (fourth to first centuries BCE) in Bulgaria and successfully identified 17 sequences representing 14 different haplotypes of the mitochondrial D-loop. Compar...
Source: Animal Science Journal - January 31, 2023 Category: Zoology Authors: Yoshinori Nishita,
Yosuke Amaike,
Nikolai Spassov,
Latinka Hristova,
Dimitar Kostov,
Diyana Vladova,
Stanislava Peeva,
Evgeniy Raichev,
Radka Vlaeva,
Ryuichi Masuda Tags: RESEARCH ARTICLE Source Type: research
Differences in ingestive behavior between grazing goats and sheep at the bite scale
This study aimed to clarify the differences in ingestive behavior between goats and sheep at the bite scale. Animals were allowed to graze a feeding station of bahiagrass (Paspalum notatum Fl ügge) with two sward heights (short and tall) to two levels of bite depletion (20 and 40 bites). Ingestive behavior variables, which represent the rate and mass of bites and chews, intake rate, bite dimensions, and bite placement characteristics, were quantified. The interspecies difference in inge stive behavior became obvious at the short sward. Goats reduced the inter-bite distance and maintained bite overlapping but took deeper b...
Source: Animal Science Journal - January 31, 2023 Category: Zoology Authors: Masato Yayota,
Mai Hotokebuchi,
Rie Kawata,
Yukinori Tani,
Shigeru Ohtani Tags: RESEARCH ARTICLE Source Type: research
Diversity of mitochondrial D ‐loop haplotypes from ancient Thracian horses in Bulgaria
AbstractThe domestication of the horse began possibly more than 5000 years ago in the western part of the Eurasian steppe, and according to the leading hypothesis, horses first spread from the Steppe toward the region of the Thracian culture, starting in the second half of the 2nd millennium BCE and flourished from the fifth to first centuries BCE, mainly located in present-day Bulgaria. We analyzed 17 horse bone remains excavated from Thracian archaeological sites (fourth to first centuries BCE) in Bulgaria and successfully identified 17 sequences representing 14 different haplotypes of the mitochondrial D-loop. Compar...
Source: Animal Science Journal - January 30, 2023 Category: Zoology Authors: Yoshinori Nishita,
Yosuke Amaike,
Nikolai Spassov,
Latinka Hristova,
Dimitar Kostov,
Diyana Vladova,
Stanislava Peeva,
Evgeniy Raichev,
Radka Vlaeva,
Ryuichi Masuda Tags: RESEARCH ARTICLE Source Type: research
