Efficiency of genetic modification in gene ‐knockout sperm‐derived zygotes followed by electroporation of guide RNA targeting the same gene
In conclusion, the combination of fertilization with gene-deficient spermatozoa and gene editing of the same targeted gene region using EP had no beneficial effects on embryo genetic modification, indicating that EP alone is a sufficient tool for genome modification. (Source: Animal Science Journal)
Source: Animal Science Journal - May 23, 2023 Category: Zoology Authors: Koki Takebayashi, Manita Wittayarat, Qingyi Lin, Nanaka Torigoe, Bin Liu, Maki Hirata, Megumi Nagahara, Fuminori Tanihara, Takeshige Otoi Tags: TECHNICAL NOTE Source Type: research

Retraction: Mengling Peng, Longlong Li, Lei Yu, Chongyang Ge, Haitian Ma, Effects of ( −)‐hydroxycitric acid on lipid droplet accumulation in chicken embryos, Animal Science Journal Volume 89, Issue 1, Pages 237–249 (https://doi.org/10.1111/asj.12887)
(Source: Animal Science Journal)
Source: Animal Science Journal - May 23, 2023 Category: Zoology Tags: RETRACTION Source Type: research

The effects of rumen protected methionine supplementation on the performance of primiparous dairy cows using the Presynch ‐Ovsynch protocol
In conclusion, feeding 16% CP with RPM boosted the productivity and reduced the calving interval in primiparous lactating dairy cows. (Source: Animal Science Journal)
Source: Animal Science Journal - May 6, 2023 Category: Zoology Authors: Mohamed Ayoub Abedal ‐Majed, Hosam Hani Titi, Mohmmad Al‐Qaisi, Anas Abdelqader, Mohammad Jihad Tabbaa Tags: RESEARCH ARTICLE Source Type: research

Physicochemical properties and structural changes of chicken breast meat subjected to radio frequency tempering combined with conventional thawing treatments
AbstractBeing able to thaw frozen meat in a reasonable time without impairing quality is crucial for industry and households. Radio frequency (RF) techniques have been used to defrost frozen foods. The influences of RF (50  kW, 27.12 MHz) tempering combined with water immersion (WI, 20°C) thawing (RFWI) or air convection (AC, 20°C) thawing (RFAC) on the physicochemical and structural changes of chicken breast meat were investigated, and the results were compared with those of the fresh meat (FM) and the meat sam ples subjected to WI and AC only. The thawing processes were terminated when the core temperatures of the ...
Source: Animal Science Journal - April 28, 2023 Category: Zoology Authors: Chonlathee Kaewkot, Wen ‐Ling Cheng, Fa‐Jui Tan Tags: RESEARCH ARTICLE Source Type: research

Precalving behavior in dairy cattle with different calving times
In this study, we analyzed the behavior of pregnant dairy cattle for 7  days prior to calving, to assess the feasibility of predicting the calving time. Eleven Holstein cows were divided into two groups based on their calving times, that is, in the morning (the Morning Parturition Group) or the evening (the Evening Parturition Group). Their behavior was recorded on v ideo. An analysis was conducted of the daily occurrences of each type of behavior and the number of switches of behavior during the day and at night. A statistical analysis was conducted, using a two-way factorial analysis. The behavioral sequence was analyz...
Source: Animal Science Journal - April 21, 2023 Category: Zoology Authors: Wakana Shinada, Naoya Gakumazawa, Shizu Koshikawa, Takahiro Ito, Tetsuo Fujiwara, Masahiro Takahashi, Yasushi Chida, Keiji Okada, Yoshitaka Deguchi Tags: RESEARCH ARTICLE Source Type: research

Modification of dietary rumen degradable starch content by chemical processing of feed ingredients: A meta ‐analysis
This study aimed to evaluate the chemical processing of ruminant feed ingredients on rumen degradable starch (RDS) and starch degradation kinetics in the rumen. A database was constructed from a total of 34 articles, consisted of 100 observations. The articles were searched and identified from the Scopus platform. Data were analyzed by using the fixed effect model. The types of chemical processing in this study included sodium hydroxide, ammonia, potassium aluminum, urea, formaldehyde, and organic acid. Results indicated that chemical processing significantly reduced the RDS content (p <  0.001) and the immediately ...
Source: Animal Science Journal - April 19, 2023 Category: Zoology Authors: Mardiah Rahmadani, Irwan Susanto, Rahma D. D. Prasetya, Makoto Kondo, Nahrowi Nahrowi, Anuraga Jayanegara Tags: SHORT COMMUNICATION Source Type: research

Egg ‐laying capacity of parent flock geese at different stocking densities
This article presents the results of studies aimed at establishing the optimal stocking density of purebred and hybrid geese of the parent flock, taking into account the indicators of their live weight and egg production. When conducting research, the stocking density of geese was established depending on the breed and shape. Different stocking densities of geese in groups were achieved due to their different numbers in groups: Kuban 1.2; 1.5; 1.8 birds/m2, large gray 0.9; 1.2; 1.5 birds/m2, hybrid bird 1.0; 1.3; 1.5 birds/m2. It was revealed on the basis of the analysis of the productive qualities of adult geese that the ...
Source: Animal Science Journal - April 13, 2023 Category: Zoology Authors: Danis Khaziev, Rinat Gadiev, Alfiya Gayfullina, Vladimir Kosilov, Marina Kazanina Tags: RESEARCH ARTICLE Source Type: research