Rumen microbial composition associated with the non ‐glucogenic to glucogenic short‐chain fatty acids ratio in Holstein cows
This study aimed to determine the physiological features and rumen microbial composition associated with the non-glucogenic-to-glucogenic short-chain fatty acids ratio (NGR). Holstein cows were housed in a free-stall barn with an automatic milking system and fed a partially mixed ration. Physiological and microbial analyses were performed on 66 datasets collected from 66 cows (50 –250 days in milk). NGR was positively correlated with ruminal pH, relative abundances of protozoa and fungi, methane conversion factor, methane intensity, plasma lipids, parity, and milk fat, and negatively correlated with total short-chain f...
Source: Animal Science Journal - March 30, 2023 Category: Zoology Authors: Shuhei Takizawa, Takumi Shinkai, Yosuke Kobayashi, Masahiro Masuda, Kenji Hashiba, Kota Uchisawa, Fuminori Terada Tags: RESEARCH ARTICLE Source Type: research
Prediction of methane emissions from fattening cattle using the methane ‐to‐carbon dioxide ratio
This study aimed to develop a prediction equation for methane (CH4) emissions from fattening cattle based on the CH4/carbon dioxide (CO2) ratio and validate the predictive ability of the developed equation. The prediction equation was developed using the CH4/CO2 ratio combined with oxygen consumption and respiratory quotient estimations that were theoretically calculated from the relation between gas emissions and energy metabolism. To validate the prediction equation, gas measurements in the headboxes were conducted using eight Japanese Black steers. The predictive ability of the developed equation was compared with that ...
Source: Animal Science Journal - March 30, 2023 Category: Zoology Authors: Kohei Oikawa, Tomoyuki Suzuki, Yuko Kamiya, Mikito Higuchi, Tomoya Yamada, Mitsuru Kamiya, Fuminori Terada Tags: RESEARCH ARTICLE Source Type: research
Menthol application on healthy and inflamed goat udders changes antimicrobial components in milk
AbstractMammary glands with mastitis are usually treated with antibiotics in combination with anti-inflammatory drug application on the udder skin. Menthol is an anti-inflammatory drug. The aim of the present study was to investigate the effect of surface application of menthol on goat udders on the production of antimicrobial components in milk. Goats (5 Shiba and 11 Tokara goats) were subjected to menthol application to the udder under both healthy and inflammatory conditions. An intramammary infusion of lipopolysaccharides was carried out to induce inflammatory conditions in the udder. Milk samples were collected to det...
Source: Animal Science Journal - March 29, 2023 Category: Zoology Authors: Ruri Ohno, Naoki Suzuki, Yusaku Tsugami, Takahiro Nii, Ken Kobayashi, Naoki Isobe Tags: RESEARCH ARTICLE Source Type: research
Comparison of carcass traits and nutritional profile in two different broiler ‐type duck lines
AbstractCherry Valley ducks (CVDs) and White Kaiya ducks (WKDs) are judged to be fast- and slow-growing lines, respectively. To investigate the carcass traits and nutritional profile at their marketable ages, 12 birds (38 days for CVDs,n = 6; 56 days for WKDs,n = 6) were randomly selected and slaughtered. Indicators such as breast muscle weight, shear force, and proximate composition were comprehensively detected. Although the carcass and breast muscle weight in WKDs were significantly lower, remarkably higher intramuscular fat and tenderness and less moisture content were observed in WKDs. Besides, WKDs conta...
Source: Animal Science Journal - March 27, 2023 Category: Zoology Authors: Wen Gao, Zhengfeng Cao, Yu Zhang, Yang Zhang, Wenming Zhao, Guohong Chen, Bichun Li, Qi Xu Tags: RESEARCH ARTICLE Source Type: research
L ‐histidine inhibits the heat‐induced gelation of actomyosin in a low ionic strength solution
In conclusion, L-histidine might suppress the aggregation of actomyosin a nd inhibit heat-induced gelation in a low ionic strength solution. (Source: Animal Science Journal)
Source: Animal Science Journal - March 21, 2023 Category: Zoology Authors: Toru Hayakawa, Yu Kubono, Shuji Fujii, Jun ‐ichi Wakamatsu, Haruto Kumura Tags: RESEARCH ARTICLE Source Type: research
L ‐Citrulline: A novel hypothermic amino acid promoting thermotolerance in heat‐exposed chickens
AbstractWith global warming becoming of increasing concern, poultry farms are experiencing a concomitant increase in heat stress. Chickens are very sensitive to high ambient temperature (HT), so the development of novel nutrients that will help deal with the challenge posed by heat stress is vital. We revealed that L-citrulline (L-Cit) can reduce body temperature in chickens. Orally administered L-Cit solution has been found to provide heat tolerance in chickens and to result in reduced food intake. Heat exposure and oral administration of L-Cit led to increased levels of plasma insulin, whereas heat stress led to a declin...
Source: Animal Science Journal - March 20, 2023 Category: Zoology Authors: Vishwajit S. Chowdhury Tags: REVIEW ARTICLE Source Type: research
Near ‐infrared spectroscopy for rapid evaluation of winter cereals and Italian ryegrass forage mixtures
AbstractNear-infrared (NIR) spectroscopy was employed to determine the differences between forage mixtures of winter cereals and Italian ryegrass and to evaluate fermentation characteristics of mixed silages. Forages were harvested on five phases (Cuts 1 –5), with 1 week interval (n = 100). The yield of the last harvest (Cut 5) was ensiled and analyzed on four different days (D0, D7, D14, and D90) (n = 80). Principal component analysis based on the NIR data revealed differences according to the days of harvest, differences between winter cereals and Italian ryegrass forages, and differences in the fermentation ...
Source: Animal Science Journal - March 16, 2023 Category: Zoology Authors: Haruna Gado Yakubu, Alemayehu Worku, R óbert Tóthi, Tamás Tóth, Szilvia Orosz, Hedvig Fébel, László Kacsala, Balázs Húth, Richárd Hoffmann, George Bazar Tags: RESEARCH ARTICLE Source Type: research
Caveolae ‐associated protein 3 promotes adipogenic differentiation of porcine preadipocytes by promoting extracellular signal‐regulated kinase phosphorylation
AbstractFat deposition is one of the key factors affecting the economic development of pig husbandry. The aim of this study was to investigate the expression characteristics of caveolae-associated protein 3 (CAVIN3) and to elucidate its effect and mechanism on adipogenic differentiation of porcine preadipocytes. Cell transfection, quantitative reverse transcription polymerase chain reaction (qRT-PCR), western blot, and oil red O staining were used to detect the effect ofCAVIN3 on the differentiation of porcine preadipocytes. The results showed thatCAVIN3 was expressed in various tissues, with higher expression in adipose t...
Source: Animal Science Journal - March 16, 2023 Category: Zoology Authors: Mingyue Shi, Shuai Yang, Xiaoyu Huang, Shouyuan Wang, Wenxia Li, Jiale Yun, Chang Lu, Yang Yang, Chunbo Cai, Pengfei Gao, Xiaohong Guo, Bugao Li, Guoqing Cao Tags: RESEARCH ARTICLE Source Type: research