The Journal of Agricultural Science最新文献

Using multivariate analysis to predict carcass characteristics of lambs in grazing and supplemented with different levels of non-protein nitrogen 利用多元分析预测放牧和补充不同水平非蛋白氮的羔羊的胴体特征

The Journal of Agricultural Science Pub Date : 2024-05-30 DOI: 10.1017/s0021859624000303

Francisca Fernanda da Silva Roberto, Neila Lidiany Ribeiro, Gelson dos Santos Difante, Diego Gomes Freire Guidolin, Luís Carlos Vinhas Ítavo, Camila Celeste Brandão Ferreira Ítavo, Jéssica Gomes Rodrigues, Marislayne de Gusmão Pereira, Roberto Germano Costa

{"title":"Using multivariate analysis to predict carcass characteristics of lambs in grazing and supplemented with different levels of non-protein nitrogen","authors":"Francisca Fernanda da Silva Roberto, Neila Lidiany Ribeiro, Gelson dos Santos Difante, Diego Gomes Freire Guidolin, Luís Carlos Vinhas Ítavo, Camila Celeste Brandão Ferreira Ítavo, Jéssica Gomes Rodrigues, Marislayne de Gusmão Pereira, Roberto Germano Costa","doi":"10.1017/s0021859624000303","DOIUrl":"https://doi.org/10.1017/s0021859624000303","url":null,"abstract":"The aim of this study is to assess the effects of substituting soybean meal with extruded urea in the diet of crossbred Texel x no defined racial pattern lambs under continuous grazing on Brachiaria ssp., focusing on both their productive and nutritional performance. 60 Texel crossbred lambs (12 animals for each treatment) were used, with an average initial weight of 20.7 ± 0.87 kg and an average age of 2.5 ± 0.70 months, fed treatments with increasing levels of UE (Urea extruded Amireia® 200S): 0; 6; 12; 18 and 24 grams of EU 100/kg of body weight, with trial period was 5 months, using the multivariate technique. The data were subjected to principal component and canonical discriminant analysis to check possible differences between the evaluated treatments and identify the variables that best discriminate and use these variables to create a discriminant function that represents the differences between treatments. Of the 12 variables initially used, we observed that 9 were used by the main components, but 6 were those that presented the greatest discriminatory power for the study. Main component 1 was characterized by biometric measurements and showed the greatest power of variation in the study (60%), followed by main component 2, represented by slaughter weight and empty body weight (13%). These correlations indicate that biometric measurements can serve as reliable indirect indicators for estimating carcass traits in sheep, offering a practical alternative to visual assessments.","PeriodicalId":501199,"journal":{"name":"The Journal of Agricultural Science","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy supplementation of beef steers or inclusion of legumes in temperate pastures in crop-livestock integration area 在作物-牲畜一体化地区的温带牧场中为肉牛补充能量或添加豆科植物

The Journal of Agricultural Science Pub Date : 2024-05-30 DOI: 10.1017/s0021859624000297

Fernanda Bernardi Scheeren, Laércio Ricardo Sartor, Mirella Danna, Fernando Kuss, Wagner Paris, Alessandra Bianchin, Nathalia Marques Andriotti, Luís Fernando Glasenapp de Menezes

引用次数: 0

Direct and maternal genetic parameters for growth traits in Jersey crossbred cattle 泽西杂交牛生长性状的直接遗传参数和母系遗传参数

The Journal of Agricultural Science Pub Date : 2024-05-27 DOI: 10.1017/s0021859624000285

Nunhlupuii Vangchhia, Indrajit Gayari, Mokidur Rahman, Sylvia Lalhmingmawii, Champak Bhakat, Hasan Baneh, Ajoy Mandal

{"title":"Direct and maternal genetic parameters for growth traits in Jersey crossbred cattle","authors":"Nunhlupuii Vangchhia, Indrajit Gayari, Mokidur Rahman, Sylvia Lalhmingmawii, Champak Bhakat, Hasan Baneh, Ajoy Mandal","doi":"10.1017/s0021859624000285","DOIUrl":"https://doi.org/10.1017/s0021859624000285","url":null,"abstract":"Growth data on Jersey crossbred calves, maintained at ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, Nadia, West Bengal, India, were collected and analysed to assess the influence of maternal effects on growth traits of calves. Traits considered for this study were birth weight (BW) and weights at 3 months (W3M), 6 months (W6M), 9 months (W9M) and 12 months (W12M) of age. Least-squares analyses were employed to obtain the effects of non-genetic factors on the traits of interest. Determination of influence of maternal effects on growth traits was estimated by fitting three univariate animal models (including or excluding maternal effects) using Bayesian approach. The most appropriate model for each trait was selected based on Deviance Information Criterion. Direct heritability (h2) estimates for BW, W3M, W6M, W9M and W12M were 0.31 ± 0.08, 0.26 ± 0.10, 0.48 ± 0.10, 0.44 ± 0.11 and 0.39 ± 0.14, respectively, under the best model. Permanent environmental maternal effects (c2) varied from 0.04 to 0.12 for all traits. Existence of maternal effects for all ages reflects the importance of maternal components for these traits. Moderate to high heritability estimates for growth traits indicate the possibility of modest genetic progress for these traits through selection under prevalent management system.","PeriodicalId":501199,"journal":{"name":"The Journal of Agricultural Science","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effects of breed and genomic inbreeding on milk, fat and protein lactation yields and fertility traits in pasture-based dairy cows in Argentina 阿根廷牧场奶牛品种和基因组近亲繁殖对牛奶、脂肪和蛋白质泌乳产量及繁殖力特征的影响

The Journal of Agricultural Science Pub Date : 2024-05-24 DOI: 10.1017/s0021859624000273

M. J. Beribe, H. A. Carignano, Mario Andrés Poli, N. Lopez-Villalobos

引用次数: 0

Effect of using hydroxychloride as a copper source on performance, eggshell quality, tibia properties, mineral excretion, and antioxidant capacity of yolk in layer quails 使用羟基盐酸盐作为铜源对蛋鸡生产性能、蛋壳质量、胫骨特性、矿物质排泄和蛋黄抗氧化能力的影响

The Journal of Agricultural Science Pub Date : 2024-04-30 DOI: 10.1017/s0021859624000236

Esra Tuğçe Gül, Osman Olgun, Gözde Kılınç, Fatih Gökmen, Alpönder Yıldız, Veli Uygur, Behlül Sevim, Ainhoa Sarmiento-García

{"title":"Effect of using hydroxychloride as a copper source on performance, eggshell quality, tibia properties, mineral excretion, and antioxidant capacity of yolk in layer quails","authors":"Esra Tuğçe Gül, Osman Olgun, Gözde Kılınç, Fatih Gökmen, Alpönder Yıldız, Veli Uygur, Behlül Sevim, Ainhoa Sarmiento-García","doi":"10.1017/s0021859624000236","DOIUrl":"https://doi.org/10.1017/s0021859624000236","url":null,"abstract":"This research aimed to examine the impact of varying levels of dietary copper (Cu) hydroxychloride on the performance, egg quality, yolk antioxidant capacity, tibia traits, and mineral excretion in laying quails. 125 female 10-week-old quails were randomly distributed into five experimental groups with five replicates, each consisting of five quails. Five experimental isonitrogenous and isoenergetic diets were designed to contain different Cu hydroxychloride (54% Cu) levels at 7.20 (basal diet), 15, 30, 45 and 60 mg/kg respectively. Quails were fed with trial diets for 12 weeks. Performance, egg production, eggshell quality, and biomechanical traits of the tibia were not impacted (P > 0.005) by variations in dietary Cu levels. Yolk antioxidant capacity, measured as yolk DPPH value, exhibited an increase (P < 0.01) in the high-dose group (60 mg/kg). Regarding tibia mineral concentration, Cu concentration decreased linearly (P < 0.001) with increasing Cu level, manganese and zinc content recorded the highest values in quails that had received 60 mg/kg Cu in the diet (P < 0.01), while the lowest phosphorus content was described for 45 and 60 mg/kg. Contrarily, increases (P < 0.01) in dietary Cu resulted in raised faecal Cu content, while phosphorus, manganese, and zinc, were reduced when Cu was added. It can be inferred that adding Cu to the diet of laying quails would not be necessary, which in turn decreases Cu excretion and prevents substantial environmental harm.","PeriodicalId":501199,"journal":{"name":"The Journal of Agricultural Science","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141147926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of epiphytic microbiota in red clover and alfalfa on silage fermentation products, bacterial community diversity and functionality of oat 评估红三叶和紫花苜蓿中的附生微生物群对青贮发酵产物、细菌群落多样性和燕麦功能的影响

The Journal of Agricultural Science Pub Date : 2024-04-29 DOI: 10.1017/s0021859624000212

Siran Wang, Junfeng Li, Jie Zhao, Zhihao Dong, Mudasir Nazar, Niaz Ali Kaka, Ziqun Lin, Tao Shao

{"title":"Evaluation of epiphytic microbiota in red clover and alfalfa on silage fermentation products, bacterial community diversity and functionality of oat","authors":"Siran Wang, Junfeng Li, Jie Zhao, Zhihao Dong, Mudasir Nazar, Niaz Ali Kaka, Ziqun Lin, Tao Shao","doi":"10.1017/s0021859624000212","DOIUrl":"https://doi.org/10.1017/s0021859624000212","url":null,"abstract":"The purpose of this experiment was to evaluate the contribution of epiphytic microbiota on alfalfa (AL), oat (OT), and red clover (RC) to ensiling characteristics and bacterial community diversity of oat. With the irradiation of γ-ray, sterile OT (~233 g/kg dry matter (DM)) was inoculated by sterile water (STOT), epiphytic microbiota from OT (OTOT), AL (OTAL) and RC (OTRC), respectively. Triplicate silage-bags for each treatment were sampled after different days (1, 3, 7, 15, 30 and 60) of fermentation, respectively. Similar chemical compositions were found between fresh oat and STOT. Lower (P < 0.05) contents of ammonia nitrogen (NH3-N) and higher (P < 0.05) accumulation of lactic acid were found in OTAL compared with OTRC and OTOT on day 3. The greatest (P < 0.05) NH3-N, acetic acid concentrations and pH and the lowest (P < 0.05) concentration of lactic acid were found in OTRC on day 60. After 3 days of ensiling, Lactobacillus accounted for a big proportion in OTAL and OTOT, and Hafnia-Obesumbacterium was predominant in OTRC. The bacterial communities in OTAL and OTOT had lower (P < 0.05) abundances of ‘Genetic Information Processing’ than OTRC after 3 days. Overall, the composition, diversity, and activity of epiphytic microbiota can notably influence the ensiling characteristics of forage oat. The lactic acid bacteria (hetero-fermentative type) and Enterobacteriaceae species played an important role in producing ethanol contents during the ensiling of forage oat.","PeriodicalId":501199,"journal":{"name":"The Journal of Agricultural Science","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141062956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of fermentation profiles, bacterial community structure, and bacterial β-carotene synthesis of alfalfa silage treated with propionic acid or its combination with squalene 用丙酸或其与角鲨烯的组合处理苜蓿青贮饲料的发酵概况、细菌群落结构和细菌β-胡萝卜素合成的研究

The Journal of Agricultural Science Pub Date : 2024-04-17 DOI: 10.1017/s0021859624000194

C. Zong, Wanqi Jiang, Tao Shao, Qinhua Liu

引用次数: 0

The distance from tree legumes in silvopastoral systems modifies the litter in grass-composed pastures 林牧系统中与豆科植物的距离会改变草地上的枯草量

The Journal of Agricultural Science Pub Date : 2024-04-08 DOI: 10.1017/s0021859624000200

Amanda Maria Gallindo dos Santos, Jose Carlos Batista Dubeux, Mércia Virginia Ferreira dos Santos, Suellen Brandão de Miranda Costa, Diego de Lima Côelho, Erick Rodrigo da Silva Santos, Naligia Gomes de Miranda e Silva, Bárbara Marcélia Martins de Oliveira, Valéria Xavier de Oliveira Apolinário, Janerson José Coelho

{"title":"The distance from tree legumes in silvopastoral systems modifies the litter in grass-composed pastures","authors":"Amanda Maria Gallindo dos Santos, Jose Carlos Batista Dubeux, Mércia Virginia Ferreira dos Santos, Suellen Brandão de Miranda Costa, Diego de Lima Côelho, Erick Rodrigo da Silva Santos, Naligia Gomes de Miranda e Silva, Bárbara Marcélia Martins de Oliveira, Valéria Xavier de Oliveira Apolinário, Janerson José Coelho","doi":"10.1017/s0021859624000200","DOIUrl":"https://doi.org/10.1017/s0021859624000200","url":null,"abstract":"The use of silvopastoral systems with tree legumes is a viable alternative to recover and develop pastures, as they add N to the system influencing pasture growth. This study hypothesized that the herbage and litter of signalgrass (Urochloa decumbens Stapf) is affected by legume trees in the pasture. Treatments were composed of (1) signalgrass + Mimosa caesalpiniifolia Benth.; (2) signalgrass + Gliricidia sepium Jacq.; and (3) signalgrass monoculture. The 3-year experiment followed a randomized complete block design with three replications. Tree legumes were planted in double rows (15 × 1 × 0.5 m), in 1 ha paddocks. Litter samples were taken in five distance points (0, 1.8, 3.7, 5.6 and 7.5 m) perpendicular to tree legume rows. Signalgrass was taller at longer distances from the trees (P < 0.05). Signalgrass height differed between treatments, with taller signalgrass found in pastures mixed with G. sepium (15.6 cm) compared to M. caesalpiniifolia (9 cm) (P < 0.05). Herbage N content decreased with increasing distance from tree rows (P < 0.05). Litter N content followed a similar pattern, ranging from 23 g/kg under the trees to 12 g/kg at 7.5 m away from tree rows. Signalgrass did not grow under the tree crown (0–1.8 m), especially when intercropped with M. caesalpiniifolia. The findings of this study suggest that the type of legume trees used in the silvopastoral system has the potential to modify the pattern of grass growth and content of N in pasture litter.","PeriodicalId":501199,"journal":{"name":"The Journal of Agricultural Science","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mitigating the effects of water-deficit stress on potato growth and photosynthesis using mycorrhizal fungi and phosphate-solubilizing bacteria 利用菌根真菌和磷酸盐溶解细菌减轻缺水胁迫对马铃薯生长和光合作用的影响

The Journal of Agricultural Science Pub Date : 2024-03-06 DOI: 10.1017/s0021859624000169

Ahmad Nemati, Mohammad Ali Aboutalebian, Mehrdad Chaichi

{"title":"Mitigating the effects of water-deficit stress on potato growth and photosynthesis using mycorrhizal fungi and phosphate-solubilizing bacteria","authors":"Ahmad Nemati, Mohammad Ali Aboutalebian, Mehrdad Chaichi","doi":"10.1017/s0021859624000169","DOIUrl":"https://doi.org/10.1017/s0021859624000169","url":null,"abstract":"Biofertilizers, such as arbuscular mycorrhiza fungi and phosphate-solubilizing bacteria (PSB), have been reported to enhance plant growth under water stress conditions. This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth under water deficit stress. The experiment was conducted over two crop years (2019 and 2020) using a randomized complete block design with three replications. Four irrigation intervals (70, 90, 110 and 130 mm of cumulative evaporation) and six biofertilizer treatments (PSB, Funneliformis mosseae [FM], Rhizoglomus fasciculatum [RF], PSB + FM, PSB + RF and no use) were applied. Severe moisture stress (130 mm evaporation) compared to no stress (70 mm evaporation) increased substomatal carbon dioxide concentration. The application of biofertilizers improved tuber yield under severe moisture stress, with FM showing the highest increase (62.9%), followed by RF (59.8%) and PSB (48.4%). The use of PSB along with mycorrhizae led to a significant decrease in mycorrhizal colonization percentage at all irrigation levels. The highest percentage of colonization and net photosynthesis was obtained from the application of both mycorrhizal species under irrigation conditions after 70 mm of evaporation. The application of PSB alone resulted in a 14.6% increase in the transpiration rate, additionally, the use of mycorrhiza led to an 18.7% increase in stomatal conductivity compared to no-biofertilizer. The results suggest that the simultaneous use of PSB and mycorrhizae can be effective in mild moisture stress, but in severe moisture stress, the use of mycorrhizal species alone is more effective.","PeriodicalId":501199,"journal":{"name":"The Journal of Agricultural Science","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140167388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Incubation experiments using nitrogen isotope discrimination to estimate ammonia emission from amended sheep manure treatments 利用氮同位素鉴别法估算羊粪改良处理的氨排放的孵化实验

The Journal of Agricultural Science Pub Date : 2024-03-06 DOI: 10.1017/s0021859624000170

Hassan Khanaki, Richard J. Dewhurst, Brian J. Leury, Yumeng Song, Deli Chen, Long Cheng

{"title":"Incubation experiments using nitrogen isotope discrimination to estimate ammonia emission from amended sheep manure treatments","authors":"Hassan Khanaki, Richard J. Dewhurst, Brian J. Leury, Yumeng Song, Deli Chen, Long Cheng","doi":"10.1017/s0021859624000170","DOIUrl":"https://doi.org/10.1017/s0021859624000170","url":null,"abstract":"Two 10-day in vitro experiments were conducted to investigate the relationship between nitrogen (N) isotope discrimination (δ15N) and ammonia (NH3) emissions from sheep manure. In Exp. 1, three different manure mixtures were set up: control (C); C mixed with lignite (C + L); and grape marc (GM), with 5, 4 and 5 replications, respectively. For C, urine and faeces were collected from sheep fed a diet of 550 g lucerne hay/kg, 400 g barley grain/kg and 50 g faba bean/kg; for C + L, urine and faeces were collected from sheep fed the C diet and 100 g ground lignite added to each incubation system at the start of the experiment; for GM, urine and faeces were collected from sheep fed a diet consisting of C diet with 200 g/kg of the diet replaced with GM. In Exp. 2, three different urine-faeces mixtures were set up: 2U:1F, 1.4U:1F and 1U:1F with urine to faeces ratios of 2:1, 1.4:1 and 1:1, respectively, each with 5 replications. Lignite in C + L led to significantly lower cumulative manure-N loss by 81 and 68% in comparison with C and GM groups, respectively (P = 0.001). Cumulative emitted manure NH3-N was lower in C + L than C and GM groups by 35 and 36%, respectively (P = 0.020). Emitted manure NH3-N was higher in 2U:1F compared to 1.4U:1F and 1U:1F by 18 and 26%, respectively (P < 0.001). This confirms the relationship between manure δ15N and cumulative NH3-N loss reported by earlier studies, which may be useful for estimating NH3 losses.","PeriodicalId":501199,"journal":{"name":"The Journal of Agricultural Science","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140311994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0