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Heritabilities for copy number variation of porcine endogenous retrovirus by a quantitative PCR 通过定量 PCR 检测猪内源性逆转录病毒拷贝数变异的遗传力
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-11-20 DOI: 10.1111/asj.70002
Thanh-Nhan T. Giang, Can V. Ta, Shinya Ishihara, Aisaku Arakawa, Toshihiro Okamura, Thanh Q. Dang-Nguyen, Dai V. Nguyen, Lan D. Pham, Kazuhiro Kikuchi, Masaaki Taniguchi
{"title":"Heritabilities for copy number variation of porcine endogenous retrovirus by a quantitative PCR","authors":"Thanh-Nhan T. Giang,&nbsp;Can V. Ta,&nbsp;Shinya Ishihara,&nbsp;Aisaku Arakawa,&nbsp;Toshihiro Okamura,&nbsp;Thanh Q. Dang-Nguyen,&nbsp;Dai V. Nguyen,&nbsp;Lan D. Pham,&nbsp;Kazuhiro Kikuchi,&nbsp;Masaaki Taniguchi","doi":"10.1111/asj.70002","DOIUrl":"https://doi.org/10.1111/asj.70002","url":null,"abstract":"<p>Pigs (<i>Sus scrofa</i>) have been expected to have organs transplanted to humans, but porcine endogenous retrovirus (PERV) is one of the risks because the PERV has the possibility to get infected with human cells. Therefore, the pigs are required to have as low a PERV copy number as possible. In this study, firstly, we investigated the estimates of heritabilities for the PERV copy numbers in the Vietnamese native breeds. Genomic heritabilities for four genes on PERV were estimated using the restricted maximum likelihood method with the genomic relationship matrix. The genomic heritability estimates of these genes ranged from 0.27 to 0.71, indicating that it would be possible for these genes not to follow the normal Mendelian inheritance. Secondly, we bred the pig population to reduce the <i>pol</i> gene number and estimated the heritability for the number. Despite the high heritability estimate for the <i>pol</i> gene (0.59), little improvement was progressed after selection for reducing the gene number in the three generations. In order to reduce the PERV copy numbers from the pig genome, it would be difficult to adapt only conventional breeding technology, and we need to consider using another technology like genome editing.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling impact of improved forage cultivation on milk productivity and feed sufficiency in semiarid tropics of central India: A doubly robust analysis 印度中部半干旱热带地区改良饲草种植对牛奶生产率和饲料充足性的影响建模:双重稳健分析
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-11-18 DOI: 10.1111/asj.70009
Bishwa Bhaskar Choudhary, Purushottam Sharma, Priyanka Singh, Deepak Upadhyay, Sunil Kumar, Gaurendra Gupta, Sita Ram Kantwa, Vinod Kumar Wasnik, Mahendra Prasad
{"title":"Modeling impact of improved forage cultivation on milk productivity and feed sufficiency in semiarid tropics of central India: A doubly robust analysis","authors":"Bishwa Bhaskar Choudhary,&nbsp;Purushottam Sharma,&nbsp;Priyanka Singh,&nbsp;Deepak Upadhyay,&nbsp;Sunil Kumar,&nbsp;Gaurendra Gupta,&nbsp;Sita Ram Kantwa,&nbsp;Vinod Kumar Wasnik,&nbsp;Mahendra Prasad","doi":"10.1111/asj.70009","DOIUrl":"10.1111/asj.70009","url":null,"abstract":"<p>The study using cross-sectional data collected from 300 dairy farmers has analyzed the factors affecting adoption of improved forage technologies and its impact on milk yield and feed sufficiency in central region. We used inverse-propensity-weighting regression adjustment (IPWRA) method as main technique for impact evaluation and checked the robustness of the results using matching methods. Our findings suggest that education status, adult cattle unit, animal breed type, off-farm income activities, farm size, and access to training and market significantly influence adoption of improved forage technologies and practices. Further, the adoption led to a significant increase in daily milk yield (1.07 to 1.34 L), total dry matter availability by over 27%, and green fodder availability by around 80%. Ration balancing has been identified as a significant concern in the study region. Consequently, the study suggests that adopting a comprehensive approach is necessary to address the issue of proper ration balancing and fully harness the production potential of dairy animals.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of supplementation with mature coconut water on oxidative stress, semen quality, reproductive hormone levels, and sexual behavior in Boer bucks 补充成熟椰子汁对布尔公鹿氧化应激、精液质量、生殖激素水平和性行为的影响
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-11-17 DOI: 10.1111/asj.70005
Nur Faizah Nadia Mohd-Zainurian, Haizal Danial Esah, Nuradilla Mohamad-Fauzi, Noor Hashida Hashim, Mohd Shahmi Hakimi Mazlishah, Shamsul Azlin Ahmad Shamsuddin, Yusmin Mohd-Yusuf, Nor Azlina Abd Aziz
{"title":"Effects of supplementation with mature coconut water on oxidative stress, semen quality, reproductive hormone levels, and sexual behavior in Boer bucks","authors":"Nur Faizah Nadia Mohd-Zainurian,&nbsp;Haizal Danial Esah,&nbsp;Nuradilla Mohamad-Fauzi,&nbsp;Noor Hashida Hashim,&nbsp;Mohd Shahmi Hakimi Mazlishah,&nbsp;Shamsul Azlin Ahmad Shamsuddin,&nbsp;Yusmin Mohd-Yusuf,&nbsp;Nor Azlina Abd Aziz","doi":"10.1111/asj.70005","DOIUrl":"10.1111/asj.70005","url":null,"abstract":"<p>Mature coconut water (MCW) has been demonstrated to contain bioactive compounds with antioxidant properties. In vivo research showed that MCW supplementation increased semen quality in rats, suggesting that it may boost reproductive performance. This study investigated the impact of MCW on the reproduction of Boer bucks. Two groups of 12 sexually mature bucks were given either plain water (control) or MCW at 5 mL/kg of body weight daily for 60 days. Sexual behaviors were studied using the focal observation technique, whereas semen was collected for quality assessment. Oxidative stress markers, namely, malondialdehyde (MDA) and glutathione (GSH), along with reproductive hormones, specifically luteinizing hormone (LH), follicle-stimulating hormone (FSH), and testosterone, were quantified in blood serum samples via enzyme-linked immunosorbent assay (ELISA). The oxidative stress analysis showed elevated GSH and reduced MDA levels, accompanied by enhanced sperm quality, including superior motility, concentration, viability, and fewer morphological abnormalities (<i>p</i> &lt; 0.05), in the group receiving MCW. Moreover, there was a rise in LH, FSH, and testosterone levels with improved sexual behaviors (<i>p</i> &lt; 0.05), including a reduced latency to the first mount, increased mount attempts, higher libido, and prolonged kicking and sniffing durations. In conclusion, MCW may improve reproductive health and fertility in Boer bucks.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An estimation of lysine requirements of fattening pigs maintained and raised in Japan 对日本饲养的育肥猪赖氨酸需求量的估算。
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-11-17 DOI: 10.1111/asj.70011
Naoya Tsuchino, Katsuaki Takahashi, Takashi Ueno, Teruo Ozeki, Masaya Katsumata
{"title":"An estimation of lysine requirements of fattening pigs maintained and raised in Japan","authors":"Naoya Tsuchino,&nbsp;Katsuaki Takahashi,&nbsp;Takashi Ueno,&nbsp;Teruo Ozeki,&nbsp;Masaya Katsumata","doi":"10.1111/asj.70011","DOIUrl":"10.1111/asj.70011","url":null,"abstract":"<p>This study aimed to update the first-liming amino acid (lysine) requirements of fattening pigs maintained and raised in Japan using 146 fattening pigs with an average weight of 62 kg. Five diets were prepared with total lysine concentrations of 0.45%, 0.65%, 0.85%, 0.95%, and 1.05%. Six replicates were used for each lysine concentration. The feeding trial lasted for 4 weeks until the average weight of the pigs reached 92 kg. The total lysine concentration of the diets affected feed efficiency throughout the 4 weeks and was lowest in pigs fed diets with a total lysine concentration of 0.45% and highest in pigs fed 0.85%. The total lysine requirement was estimated using feed efficiency as the response index. The linear and quadratic models estimated 0.68% and 0.75% of the requirement for the first 2 weeks and 0.66% and 0.72% for the 4-week period, respectively. These estimates were equivalent to the total lysine requirement of 0.72% for the 50–70 kg body weight (expected gain of 850 g/d) in the Japanese Feeding Standard for Swine 2013 and higher than the 0.59% for the 70–115 kg body weight (expected gain of 1000 g/d).</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.70011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dietary water fly (Notonecta sp.) meal as an alternative protein source for sheep: Effects on performance, nutrient intake, nitrogen balance, and fermentation parameters 将水蝇(Notonecta sp.)粉作为绵羊的替代蛋白质来源:对生产性能、营养摄入、氮平衡和发酵参数的影响。
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-11-17 DOI: 10.1111/asj.70006
Lizbeth E. Robles Jimenez, Navid Ghavipanje, Manuela Renna, Octavio Alonso Castelán Ortega, Einar Vargas-Bello-Pérez, Manuel Gonzalez-Ronquillo
{"title":"Dietary water fly (Notonecta sp.) meal as an alternative protein source for sheep: Effects on performance, nutrient intake, nitrogen balance, and fermentation parameters","authors":"Lizbeth E. Robles Jimenez,&nbsp;Navid Ghavipanje,&nbsp;Manuela Renna,&nbsp;Octavio Alonso Castelán Ortega,&nbsp;Einar Vargas-Bello-Pérez,&nbsp;Manuel Gonzalez-Ronquillo","doi":"10.1111/asj.70006","DOIUrl":"10.1111/asj.70006","url":null,"abstract":"<p>In this study, the inclusion of water fly (<i>Notonecta</i> sp., NT) meal was compared with conventional protein sources such as soybean meal (SBM) and fish meal (FM) in diets destined for sheep, with specific reference to growth performance, nutrient intake, nitrogen balance, and in vitro rumen fermentation parameters. For 21 days, 18 male Suffolk lambs were randomly assigned to three experimental diets fed: (1) SBM at 130 g/kg dry matter (DM), as a plant-based protein diet; (2) FM at 50 g/kg DM, as an animal-based protein diet; and (3) NT at 60 g/kg DM, as an insect-based protein diet, for ad libitum feed intake. DM intake was similar among the treatments. The digestibility of DM (<i>p</i> = 0.006) and organic matter (<i>p</i> = 0.002) in the NT group was lower than that of SBM. In vitro rumen fermentation data showed that there were no differences between the treatments for DM degradation and the production of microbial crude protein. No differences were observed among the treatments in terms of enteric methane production. The NT diet produced the lowest NH<sub>3</sub>-N at hours 12 and 24 (<i>p</i> = 0.032 and 0.021, respectively). Overall, the dietary inclusion of NT for fattening lambs could be an alternative feeding strategy without deleterious effects on animal performance.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of quercetagetin on the growth performance, nutrient digestibility, slaughter performance, meat quality, and antioxidant capacity of broiler chickens 槲皮素对肉鸡生长性能、营养消化率、屠宰性能、肉质和抗氧化能力的影响
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-11-17 DOI: 10.1111/asj.70008
Hui-qing Liang, Dong-feng Fan, Wen-yue Hu, Feng-yang Wu, Kai Tan, Peng-yu Zhao, Shuai-juan Han, Bao-jiang Chen
{"title":"Effects of quercetagetin on the growth performance, nutrient digestibility, slaughter performance, meat quality, and antioxidant capacity of broiler chickens","authors":"Hui-qing Liang,&nbsp;Dong-feng Fan,&nbsp;Wen-yue Hu,&nbsp;Feng-yang Wu,&nbsp;Kai Tan,&nbsp;Peng-yu Zhao,&nbsp;Shuai-juan Han,&nbsp;Bao-jiang Chen","doi":"10.1111/asj.70008","DOIUrl":"10.1111/asj.70008","url":null,"abstract":"<p>This study investigated the effects of quercetagetin (QG) on growth performance, nutrient digestibility, meat quality, and antioxidant capacity of broilers. Four hundred 1-day-old Cobb broilers were randomly divided into five diets, each with eight replicates and 10 birds per replicate. The diets included a basal diet, and four diets with 25, 50, 100, and 200 mg/kg QG supplemented in basal diet. Body weight on d 21, average daily gain, and average daily feed intake on days 1–21 were quadratically (<i>p</i> &lt; 0.05) increased with increasing QG supplementation. The apparent digestibility of crude protein, ether extract, and total phosphorus increased linearly (<i>p</i> &lt; 0.05) from day 1 to 21, and increased quadratically (<i>p</i> &lt; 0.05) from day 22 to 42. The L* values of leg muscles were lower (<i>p</i> &lt; 0.05) in QG groups than control group. QG supplementation quadratically (<i>p</i> &lt; 0.05) elevated glutathione peroxidase (GSH-Px) activity and reduced malondialdehyde (MDA) levels in serum. The L* value was negatively correlated with GSH-Px. These results suggested that QG supplementation (50–100 mg/kg) enhanced early growth, nutrient digestibility, and antioxidant status in broilers, highlighting its functional properties and potential as an additive to improve broiler productivity.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation of genetic and non-genetic effects on productive life of Iranian Holstein dairy cows 估计遗传和非遗传对伊朗荷斯坦奶牛生产寿命的影响。
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-11-13 DOI: 10.1111/asj.70010
Reza Reisi-Vanani, Saeid Ansari-Mahyari, Abbas Pakdel, Roger I. Cue
{"title":"Estimation of genetic and non-genetic effects on productive life of Iranian Holstein dairy cows","authors":"Reza Reisi-Vanani,&nbsp;Saeid Ansari-Mahyari,&nbsp;Abbas Pakdel,&nbsp;Roger I. Cue","doi":"10.1111/asj.70010","DOIUrl":"10.1111/asj.70010","url":null,"abstract":"<p>Understanding the factors that influence the lifespan of dairy cows is crucial for enhancing their productive life (PL). This study aimed to investigate the impact of genetic and environmental effects on the PL of Holstein cows. Data included 82,505 cows from 1952 sires that calved for the first time between 2001 and 2016. PL was defined from first calving to culling. Proportional hazard models, assuming a piecewise Weibull distribution of the baseline hazard function, were utilized to account for time-dependent effects, such as herd size variations, year-season, milk yield, fat and protein contents, and the time-independent fixed effect of age at first calving. Herd-year and sire effects were considered as random effects. All effects showed significant associations with PL (<i>p</i> &lt; 0.001). The relative risk of culling was higher in heifers that calved at an older age and cows that calved during the cold season. Moreover, cows with lower production had a significantly shorter PL compared with high-producing cows. The effective heritability in the absence of censored data was estimated at 0.15. These findings suggest that greater attention should be paid to regular and accurate breeding programs, which are essential for enhancing profitability and the PL of Iranian dairy cows.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142612459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of the mare colostral immunoglobulins on the expression of TLR3, TLR4, and TLR7 in foals 母马初乳免疫球蛋白对马驹体内 TLR3、TLR4 和 TLR7 表达的影响。
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-11-10 DOI: 10.1111/asj.70007
Anna Migdał, Łukasz Migdał, Maria Oczkowicz, Barbara Tombarkiewicz, Adam Okólski
{"title":"Impact of the mare colostral immunoglobulins on the expression of TLR3, TLR4, and TLR7 in foals","authors":"Anna Migdał,&nbsp;Łukasz Migdał,&nbsp;Maria Oczkowicz,&nbsp;Barbara Tombarkiewicz,&nbsp;Adam Okólski","doi":"10.1111/asj.70007","DOIUrl":"10.1111/asj.70007","url":null,"abstract":"<p>Colostrum contains substances such as hormones, enzymes, polyamides, nucleic acid derivatives, and amino acid derivatives and also includes immunomodulating substances, proline-rich polypeptides, immunoglobulins (Ig) as well as bacteriostatic compounds. The aim of the study was to evaluate the impact of colostral Ig on the level of expression of selected Toll-like receptor genes (<i>TLR3</i>, <i>TLR4</i>, and <i>TLR7</i>). The experiments were conducted on 25 Polish Pony foals. Blood samples were collected according to the following scheme: before first suckling, at the 1st, 3rd, 5th, 10th, 20th, and 30th, day of age. Colostrum was obtained before the first suckling, 24 hr, and 3 days after the delivery. Gene expression analyses were performed on Illumina Eco using a commercial kit TaqMan®MGB probes. The quality of colostrum was assessed via refractometer and BRIX value. The total Ig level was calculated from the spectrophotometric method. IgG levels were measured using ELISA assay. The quality of colostrum significantly correlated with <i>TLR4</i> and <i>TLR7</i> expression. Foals that ingested colostrum with low Ig content displayed a higher level of <i>TLR4</i> gene expression, while in the case of <i>TLR7</i> the opposite trend was shown. This result indicates that colostrum may play an important role in shaping the mechanisms of building the immune system's response to bacterial pathogens.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142612462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genetic correlations between milk fatty acids grouped according to origin until 95 days in milk and fertility of Holstein cows in Japan 日本荷斯坦奶牛产奶 95 天前按来源分组的乳脂肪酸与繁殖力之间的遗传相关性。
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-10-27 DOI: 10.1111/asj.70003
Takeshi Yamazaki, Akiko Nishiura, Yuzu Chiba, Satoshi Nakagawa, Hayato Abe, Yuka Nakahori, Koichi Hagiya, Takefumi Osawa, Yutaka Masuda
{"title":"Genetic correlations between milk fatty acids grouped according to origin until 95 days in milk and fertility of Holstein cows in Japan","authors":"Takeshi Yamazaki,&nbsp;Akiko Nishiura,&nbsp;Yuzu Chiba,&nbsp;Satoshi Nakagawa,&nbsp;Hayato Abe,&nbsp;Yuka Nakahori,&nbsp;Koichi Hagiya,&nbsp;Takefumi Osawa,&nbsp;Yutaka Masuda","doi":"10.1111/asj.70003","DOIUrl":"10.1111/asj.70003","url":null,"abstract":"<p>Mitigating the effect of negative energy balance in early lactation is important for improving the fertility of dairy cows, and milk fatty acid (FA) composition may reflect energy status. We used insemination records and monthly test-day records to examine the genetic relationships between FAs grouped according to origin (FAOs) at early lactation and fertility traits in the first lactation of Japanese Holstein cows. The FAO traits we assessed were de novo FAs (C4:0 to C14:0) on a milk basis (DnM) and on a total FA basis (DnF) and preformed FAs (C15:0 and ≥ C17:0) on a total FA basis during 95 days in milk (DIM). The fertility traits evaluated were conception rate at first insemination (CR) and days open (DO). We applied a two-trait (each FAO and fertility trait) linear model to estimate the genetic correlations between them. The genetic correlations of DnM and DnF within 35 DIM with CR were 0.44 and 0.31, respectively, and those with DO were −0.27 and −0.26, respectively. These results suggest that genetic improvement in de novo FAs within 35 DIM could help to increase fertility in the first lactation.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to “Serosurvey and associated risk factors for bovine viral diarrhea virus infection in cattle in Egypt” 更正 "埃及牛感染牛病毒性腹泻病毒的血清调查和相关风险因素"。
IF 1.7 3区 农林科学
Animal Science Journal Pub Date : 2024-10-24 DOI: 10.1111/asj.70004
{"title":"Correction to “Serosurvey and associated risk factors for bovine viral diarrhea virus infection in cattle in Egypt”","authors":"","doi":"10.1111/asj.70004","DOIUrl":"10.1111/asj.70004","url":null,"abstract":"<p>\u0000 <span>Marzok, M.</span>, <span>Gattan, H. S.</span>, <span>Salem, M.</span>, &amp; <span>Selim, A.</span> (<span>2024</span>). <span>Serosurvey and associated risk factors for bovine viral diarrhea virus infection in cattle in Egypt</span>. <i>Animal Science Journal</i>, <span>95</span>(<span>1</span>), e13995. https://doi.org/10.1111/asj.13995\u0000 </p><p>The affiliation of author Mohamed Salem was incorrect. The correct affiliation listed for the author should be affiliations 1 and 5.</p><p>The author byline and affiliation should be corrected as follows:</p><p>Mohamed Marzok<sup>1,2</sup>, Hattan S. Gattan <sup>3,4</sup>, Mohamed Salem<sup>1,5</sup>, Abdelfattah Selim<sup>6</sup></p><p><sup>1</sup>Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia</p><p><sup>2</sup>Department of Surgery, Faculty of Veterinary Medicine, Kafr El Sheikh University, Kafr El Sheikh, Egypt</p><p><sup>3</sup>Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia</p><p><sup>4</sup>Special Infectious Agents Unit, King Fahad Medical Research Center, King AbdulAziz University, Jeddah, Saudi Arabia</p><p><sup>5</sup>Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt</p><p><sup>6</sup>Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Benha University, Toukh, Egypt</p><p>We apologize for this error.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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