Pub Date : 2023-11-02DOI: 10.1080/1828051x.2023.2273982
Michela Ablondi, Alberto Sabbioni, Giulia Esposito, Valentino Beretti, Vittoria Asti
Alpacas represent an exotic species for Italy, introduced no more than 20–30 years ago. Nevertheless, they are currently the most widespread camelid species reared in this country, highlighting the growing interest in breeding this species. So, it is useful to assess parameters on their growth in relation to the new environment. Thus, body weight and body measures were recorded on 49 healthy alpacas of Huacaya type (27 females, 22 males), along a period of 27 months. Overall, 111 individual observations were made. Data were analysed by ANOVA, as growth curves were estimated by applying the Gompertz’s model. Multiple regression was finally used to estimate body weight from body measures. Body weight and linear measures, except for the distance between iliac crest and the length of the rump, were influenced by the category (calves, yearlings, adults) and by the age class within category (p < 0.05), while gender and interaction between gender and category were never significant (p > 0.05). Asymptotic weigh of males was 8.25% higher than females (p < 0.05). Moreover, males at maturity had higher withers (+0.96%), longer body (+2.70%) and chest measurements (+3.18%) than females. Asymptotic rump width (both at the ilium and at the ischium) was higher in females (respectively + 6.19%; +12.90%). According to our work, the best equation for the estimate of body weight from body measures was the following: 5.691 + 0.00005624 * chest circumference3 + 0.00002298 * trunk length3 − 1.155 * rump width between ischial tuberosities + 0.00001545 * height at rump3 (R2=0.957; SE of estimate = 4.36 kg), that is important for a better management of the species.
{"title":"Body measures, growth curves and body weight prevision of alpacas ( <i>Vicugna pacos</i> ) reared in Italy","authors":"Michela Ablondi, Alberto Sabbioni, Giulia Esposito, Valentino Beretti, Vittoria Asti","doi":"10.1080/1828051x.2023.2273982","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2273982","url":null,"abstract":"Alpacas represent an exotic species for Italy, introduced no more than 20–30 years ago. Nevertheless, they are currently the most widespread camelid species reared in this country, highlighting the growing interest in breeding this species. So, it is useful to assess parameters on their growth in relation to the new environment. Thus, body weight and body measures were recorded on 49 healthy alpacas of Huacaya type (27 females, 22 males), along a period of 27 months. Overall, 111 individual observations were made. Data were analysed by ANOVA, as growth curves were estimated by applying the Gompertz’s model. Multiple regression was finally used to estimate body weight from body measures. Body weight and linear measures, except for the distance between iliac crest and the length of the rump, were influenced by the category (calves, yearlings, adults) and by the age class within category (p < 0.05), while gender and interaction between gender and category were never significant (p > 0.05). Asymptotic weigh of males was 8.25% higher than females (p < 0.05). Moreover, males at maturity had higher withers (+0.96%), longer body (+2.70%) and chest measurements (+3.18%) than females. Asymptotic rump width (both at the ilium and at the ischium) was higher in females (respectively + 6.19%; +12.90%). According to our work, the best equation for the estimate of body weight from body measures was the following: 5.691 + 0.00005624 * chest circumference3 + 0.00002298 * trunk length3 − 1.155 * rump width between ischial tuberosities + 0.00001545 * height at rump3 (R2=0.957; SE of estimate = 4.36 kg), that is important for a better management of the species.","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"219 S1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135974721","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}
{"title":"Estimation of the metabolisable energy requirements of feedlot light lambs and comparison with the U. S. National Research Council predictions","authors":"Andrés L. Martínez Marín, Manuela Renna, Claudio Forte, Emanuela Valle, Achille Schiavone","doi":"10.1080/1828051x.2023.2264879","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2264879","url":null,"abstract":"","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135872674","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}
Pub Date : 2023-10-30DOI: 10.1080/1828051x.2023.2271951
Roberta Matera, Lorenzo Pascarella, Alessio Cotticelli, Giuseppe Conte, Alessia Tondo, Giuseppe Campanile, Gianluca Neglia
The study aimed to verify the influence of different milking machine setting parameters on Italian Mediterranean buffalo milking performance. Data on milking machine settings (Milking Dry Tests [MDTs]) and milk Test-day (TD) were collected by the Italian Breeders Association (AIA). Data for each TD consisted of milk yield (MY), fat percentage (FP), protein percentage (PP), lactose percentage (LP) and linear score (LS). Working vacuum level (VL), pulsation ratio (PR), automatic cluster removal system (AC) and effective vacuum reserve (EVR) were recorded from each MDT. A total of 558 MDTs, 217,967 TD, collected from 43,593 buffaloes in 198 buffalo farms were utilised. MDT, TD and Animal data (AD) were analysed through a mixed linear model and a logistic regression model was used to evaluate the relationship between VL and EVR. Analysis of MY and quality revealed that an incorrect setting of the milking was responsible for a higher LS and lower MY and LP, along with higher FP and PP compared to farms with adequate EVR. Except for PP, the height of the milking system significantly influenced all milk parameters. Conversely, VL affected all milking traits. A higher PR (70:30) was responsible for significantly lower LS and higher FP compared to a 60:40 PR. Similarly, the presence of AC showed a significant effect on FP and MY and a slight reduction in LS. Finally, the diameter and length of the pipeline (DL) ratio lower than 2.5 m was associated with a decrease in LS. These results suggest that buffaloes require specific milking parameters.
{"title":"Milk characteristics and milking efficiency in Italian Mediterranean buffalo","authors":"Roberta Matera, Lorenzo Pascarella, Alessio Cotticelli, Giuseppe Conte, Alessia Tondo, Giuseppe Campanile, Gianluca Neglia","doi":"10.1080/1828051x.2023.2271951","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2271951","url":null,"abstract":"The study aimed to verify the influence of different milking machine setting parameters on Italian Mediterranean buffalo milking performance. Data on milking machine settings (Milking Dry Tests [MDTs]) and milk Test-day (TD) were collected by the Italian Breeders Association (AIA). Data for each TD consisted of milk yield (MY), fat percentage (FP), protein percentage (PP), lactose percentage (LP) and linear score (LS). Working vacuum level (VL), pulsation ratio (PR), automatic cluster removal system (AC) and effective vacuum reserve (EVR) were recorded from each MDT. A total of 558 MDTs, 217,967 TD, collected from 43,593 buffaloes in 198 buffalo farms were utilised. MDT, TD and Animal data (AD) were analysed through a mixed linear model and a logistic regression model was used to evaluate the relationship between VL and EVR. Analysis of MY and quality revealed that an incorrect setting of the milking was responsible for a higher LS and lower MY and LP, along with higher FP and PP compared to farms with adequate EVR. Except for PP, the height of the milking system significantly influenced all milk parameters. Conversely, VL affected all milking traits. A higher PR (70:30) was responsible for significantly lower LS and higher FP compared to a 60:40 PR. Similarly, the presence of AC showed a significant effect on FP and MY and a slight reduction in LS. Finally, the diameter and length of the pipeline (DL) ratio lower than 2.5 m was associated with a decrease in LS. These results suggest that buffaloes require specific milking parameters.","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136067628","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}
Pub Date : 2023-10-30DOI: 10.1080/1828051x.2023.2273426
Nihayat Ibrahim Mohammed, Zana Azeez Abdulkareem, Asrin Abdollahi, Hawkar Azad Khdir, Osama Rahman Ghaffar, Omer Rasool Ahmed, Rebaz Hassan Arif, Halwest Abdalla Mahmood, Suhaib Idris Mustafa, Hema Baiz Khdhir
{"title":"Effects of black cumin, fenugreek, and sesame seeds as a mixture on performance, intestinal morphology, and blood traits of broilers under chronic heat stress conditions","authors":"Nihayat Ibrahim Mohammed, Zana Azeez Abdulkareem, Asrin Abdollahi, Hawkar Azad Khdir, Osama Rahman Ghaffar, Omer Rasool Ahmed, Rebaz Hassan Arif, Halwest Abdalla Mahmood, Suhaib Idris Mustafa, Hema Baiz Khdhir","doi":"10.1080/1828051x.2023.2273426","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2273426","url":null,"abstract":"","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"21 25","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136102949","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}
Pub Date : 2023-10-26DOI: 10.1080/1828051x.2023.2222743
Zejun Fan, Changjin Ao, Khas Erdene, Chen Bai, Ruli Sa, Qina Cao, Yankai Zheng
{"title":"Analysis of fatty acid composition and miRNA profile in adipose tissue after application of <i>Allium mongolicum</i> Regel extract in diet of sheep","authors":"Zejun Fan, Changjin Ao, Khas Erdene, Chen Bai, Ruli Sa, Qina Cao, Yankai Zheng","doi":"10.1080/1828051x.2023.2222743","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2222743","url":null,"abstract":"","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"500 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134908118","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}
Pub Date : 2023-10-23DOI: 10.1080/1828051x.2023.2271056
Engin Yenice, Ali Anıl Çenesiz, İsmail Yavaş, Neşe Nuray Toprak, İbrahim Çiftci, Necmettin Ceylan
This experiment was conducted to investigate the assumed efficacy of 65% on the product basis of methionine hydroxy analog (OH-Met, 88% aqueous solution of DL-2-hydroxy-4-(methylthio) butanoic acid) relative to DL-methionine (DL-Met) in broiler chickens. A total of 792-day-old male chickens were randomly allotted to 7 dietary treatments consisting of a methionine deficient-basal diet based on corn-soybean meal and 6 different diets obtained by supplying the basal diet with methionine at 3 levels (25, 100 and 125%; levels of addition relative to the required amount of additional Met to meet SID Met + Cys requirements) from either DL-Met or OH-Met at a ratio of 65:100 (DL-Met to OH-Met on a product basis) in the corresponding treatments.
本试验旨在探讨65%蛋氨酸羟基类似物(OH-Met)、88% dl -2-羟基-4-(甲基硫)丁酸水溶液相对于dl -蛋氨酸(DL-Met)对肉鸡的功效。试验选取792日龄雄性鸡，随机分为7组饲粮处理，分别为以玉米-豆粕为基础的蛋氨酸缺乏-基础饲粮和在基础饲粮中按3个水平(25,100和125%;在相应的处理中，DL-Met或OH-Met的添加水平相对于满足SID Met + Cys要求所需的额外Met量，比例为65:100 (DL-Met与OH-Met以产品为基础)。
{"title":"An investigation of the assumed efficacy of methionine hydroxy analogue compared to DL-methionine by measuring growth performance, carcass traits, and GHR and IGF-I expression in broilers","authors":"Engin Yenice, Ali Anıl Çenesiz, İsmail Yavaş, Neşe Nuray Toprak, İbrahim Çiftci, Necmettin Ceylan","doi":"10.1080/1828051x.2023.2271056","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2271056","url":null,"abstract":"This experiment was conducted to investigate the assumed efficacy of 65% on the product basis of methionine hydroxy analog (OH-Met, 88% aqueous solution of DL-2-hydroxy-4-(methylthio) butanoic acid) relative to DL-methionine (DL-Met) in broiler chickens. A total of 792-day-old male chickens were randomly allotted to 7 dietary treatments consisting of a methionine deficient-basal diet based on corn-soybean meal and 6 different diets obtained by supplying the basal diet with methionine at 3 levels (25, 100 and 125%; levels of addition relative to the required amount of additional Met to meet SID Met + Cys requirements) from either DL-Met or OH-Met at a ratio of 65:100 (DL-Met to OH-Met on a product basis) in the corresponding treatments.","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"18 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135368153","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}
Pub Date : 2023-10-23DOI: 10.1080/1828051x.2023.2271038
Beatrice Benedetti, Martina Felici, Leonardo Nanni Costa, Barbara Padalino
Animal welfare protection is a challenge for which policy-makers are demanding scientific-based evidence. Considering horses, the challenge is even greater, as their role in society varies from production to companion animals. This review aimed to describe the evolution and geographical distribution of horse welfare literature over the years, to identify the most studied research topics and to highlight the still present gaps in knowledge. A search on Scopus® bibliometric database was performed using different welfare-related keywords. Predetermined filters were posed on time range, language and subject area. A total of 6584 records were downloaded and screened retaining only the ones dealing with horse welfare and behavioural sciences. Descriptive statistics, text mining (TM) and topic analysis (TA) were performed on the abstract of 801 eligible records. The results showed the number of studies on horse welfare is exponentially increasing, especially in the European continent. ‘Transport’ was the most frequent word, but also ‘behaviour’ and ‘pain’ emerged. Nine topics were identified and covered different subject areas: stress analysis, pain assessment, equitation science, human–horse interactions, breeding management, transport, working equids and health. The evaluation of stress and pain, horse social behaviour and the human–horse relationship resulted to be the most studied aspects related to animal welfare. On the contrary, the concept of positive welfare and the welfare assessment at slaughter of horses were underrepresented, confirming the limited literature on these subjects. This review confirmed the growing impact of research on horse welfare and highlighted how some important areas still do not provide sufficient scientific evidence.
{"title":"A review of horse welfare literature from 1980 to 2023 with a text mining and topic analysis approach","authors":"Beatrice Benedetti, Martina Felici, Leonardo Nanni Costa, Barbara Padalino","doi":"10.1080/1828051x.2023.2271038","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2271038","url":null,"abstract":"Animal welfare protection is a challenge for which policy-makers are demanding scientific-based evidence. Considering horses, the challenge is even greater, as their role in society varies from production to companion animals. This review aimed to describe the evolution and geographical distribution of horse welfare literature over the years, to identify the most studied research topics and to highlight the still present gaps in knowledge. A search on Scopus® bibliometric database was performed using different welfare-related keywords. Predetermined filters were posed on time range, language and subject area. A total of 6584 records were downloaded and screened retaining only the ones dealing with horse welfare and behavioural sciences. Descriptive statistics, text mining (TM) and topic analysis (TA) were performed on the abstract of 801 eligible records. The results showed the number of studies on horse welfare is exponentially increasing, especially in the European continent. ‘Transport’ was the most frequent word, but also ‘behaviour’ and ‘pain’ emerged. Nine topics were identified and covered different subject areas: stress analysis, pain assessment, equitation science, human–horse interactions, breeding management, transport, working equids and health. The evaluation of stress and pain, horse social behaviour and the human–horse relationship resulted to be the most studied aspects related to animal welfare. On the contrary, the concept of positive welfare and the welfare assessment at slaughter of horses were underrepresented, confirming the limited literature on these subjects. This review confirmed the growing impact of research on horse welfare and highlighted how some important areas still do not provide sufficient scientific evidence.","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"2002 29","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135412945","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}
Pub Date : 2023-10-23DOI: 10.1080/1828051x.2023.2271921
Changqing He, Yi Liu, Yaling Yao, Meichun Li, Jing Xie, Yubo Wang, Xiangyong Qu, Yuying Deng, Yu Dai
The purpose of this experiment was to use a single-factor design to investigate the effects of different supplementation levels of plant essential oil/palygorskite composite (EPO-Pal) on growth performance, blood parameters, and intestinal morphology of broiler chicken. A total of 960 one-day-old chicks were randomly assigned into 4 treatments with 6 replicates of 40 chicks each. The broilers were fed the basal diet supplemented with 0, 500, 750, and 1000 mg/kg EPO-Pal for 42 days, respectively. The results showed that the 500 or 750 mg/kg groups significantly increased the body weight, average daily feed intake and average daily gain of the broilers at 28 and 42 days (p < 0.05). Additionally, as compared to the control group, the 1000 mg/kg EPO-Pal group exhibited higher levels of immunoglobulins-A, immunoglobulins-G, immunoglobulins-M, and high-density lipoprotein cholesterol while having lower levels of tumour necrosis factor-α (p < 0.05). The content of interleukin-2 and the villus height-to-crypt depth ratio were significantly increased in the 750 mg/kg EPO-Pal group (p < 0.05). Moreover, the activity of total antioxidant capacity and superoxide dismutase were significantly enhanced in the 500 mg/kg EPO-Pal group (p < 0.05). The results are very promising, and EPO-Pal can be considered as an additive to promote the growth by enhancing immunity, antioxidant activity, and improving the intestinal morphology of broiler chickens.
{"title":"The influence of plant essential oil/palygorskite composite on growth performance, blood parameters and intestinal morphology of broiler chickens","authors":"Changqing He, Yi Liu, Yaling Yao, Meichun Li, Jing Xie, Yubo Wang, Xiangyong Qu, Yuying Deng, Yu Dai","doi":"10.1080/1828051x.2023.2271921","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2271921","url":null,"abstract":"The purpose of this experiment was to use a single-factor design to investigate the effects of different supplementation levels of plant essential oil/palygorskite composite (EPO-Pal) on growth performance, blood parameters, and intestinal morphology of broiler chicken. A total of 960 one-day-old chicks were randomly assigned into 4 treatments with 6 replicates of 40 chicks each. The broilers were fed the basal diet supplemented with 0, 500, 750, and 1000 mg/kg EPO-Pal for 42 days, respectively. The results showed that the 500 or 750 mg/kg groups significantly increased the body weight, average daily feed intake and average daily gain of the broilers at 28 and 42 days (p < 0.05). Additionally, as compared to the control group, the 1000 mg/kg EPO-Pal group exhibited higher levels of immunoglobulins-A, immunoglobulins-G, immunoglobulins-M, and high-density lipoprotein cholesterol while having lower levels of tumour necrosis factor-α (p < 0.05). The content of interleukin-2 and the villus height-to-crypt depth ratio were significantly increased in the 750 mg/kg EPO-Pal group (p < 0.05). Moreover, the activity of total antioxidant capacity and superoxide dismutase were significantly enhanced in the 500 mg/kg EPO-Pal group (p < 0.05). The results are very promising, and EPO-Pal can be considered as an additive to promote the growth by enhancing immunity, antioxidant activity, and improving the intestinal morphology of broiler chickens.","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135367171","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}
Pub Date : 2023-10-19DOI: 10.1080/1828051x.2023.2267604
Mohammed M. Qaid, Saud I. Al-Mufarrej, Maged A. Al-Garadi, Abdulaziz A. Al-Abdullatif, Abdulmohsen H. Alqhtani, Rashed A. Alhotan, Abdulrahman S. Alharthi, Abdulgader Y. BaZeyad
The effects of dietary supplementation with Rumex nervosus leaves (RNL) on fatty acid (FAs) indices, organoleptic evaluation, performance index, and feed efficiency were investigated. This study consists of five treatments. Broilers in treatments 1–4 received basal feed plus RNL at doses of 0, 1, 3, and 5 g/kg, while broilers in treatment 5 received basal feed plus the antibiotic Colimex. On day 34, FAs profile and organoleptic assessment were evaluated, and performance index and feed efficiency were determined for the entire experimental period. Results showed that FAs profile of the breast meat was affected by treatments with varying degrees (p˂0.05). The 1 g RNL resulted in the highest eicosapentaenoic acid + docosahexaenoic acid, which resulted in the highest meat lipid quality, the highest elongation index, improved organoleptic characteristics, and tended to improve performance index, feed efficiency, and nutritional index. The 5 g RNL treatment reduced total saturated fatty acids (ƩSFAs), omega-6/omega-3 ratio, especially linoleic acid/α-linolenic acid ratio, alanine aminotransferase, and increased total omega-3 fatty acids, unsaturation index, and Δ9-desaturase. In conclusion, RNL can be introduced to broiler diets, especially at an incorporation rate of 1 g, and it promotes broiler health and performance because it contains phytoconstituents that can alter the content and indices of FAs meat and improve storability and sensory quality.
本试验研究了饲粮中添加神经瘤胃叶(RNL)对瘤胃脂肪酸(FAs)指标、感官评价、生产性能指标和饲料效率的影响。本研究包括五种治疗方法。处理1 - 4的肉鸡饲喂基础饲料加0、1、3和5 g/kg RNL，处理5的肉鸡饲喂基础饲料加抗生素Colimex。第34天，进行FAs谱和感官评价，并测定整个试验期的生产性能指标和饲料效率。结果表明，不同处理对鸡胸肉的FAs含量有不同程度的影响(p小于0.05)。饲粮添加1 g RNL时，二十碳五烯酸+二十二碳六烯酸含量最高，肉质品质最高，伸长指数最高，感官特性得到改善，并有提高生产性能指标、饲料效率和营养指标的趋势。5 g RNL处理降低了总饱和脂肪酸(ƩSFAs)、ω -6/ ω -3比值，特别是亚油酸/α-亚麻酸比值、丙氨酸转氨酶，增加了总ω -3脂肪酸、不饱和指数和Δ9-desaturase。综上所述，在肉鸡饲粮中添加RNL，特别是添加量为1 g时，RNL所含的植物成分可以改变肉中FAs的含量和指标，提高肉鸡的贮藏性和感官品质，从而促进肉鸡的健康和生产性能。
{"title":"Meat fatty acids profile including metabolic, qualitative, nutritional indices, and organoleptic evaluation as affected by <i>Rumex nervosus</i> leaves meal fortified broiler diets","authors":"Mohammed M. Qaid, Saud I. Al-Mufarrej, Maged A. Al-Garadi, Abdulaziz A. Al-Abdullatif, Abdulmohsen H. Alqhtani, Rashed A. Alhotan, Abdulrahman S. Alharthi, Abdulgader Y. BaZeyad","doi":"10.1080/1828051x.2023.2267604","DOIUrl":"https://doi.org/10.1080/1828051x.2023.2267604","url":null,"abstract":"The effects of dietary supplementation with Rumex nervosus leaves (RNL) on fatty acid (FAs) indices, organoleptic evaluation, performance index, and feed efficiency were investigated. This study consists of five treatments. Broilers in treatments 1–4 received basal feed plus RNL at doses of 0, 1, 3, and 5 g/kg, while broilers in treatment 5 received basal feed plus the antibiotic Colimex. On day 34, FAs profile and organoleptic assessment were evaluated, and performance index and feed efficiency were determined for the entire experimental period. Results showed that FAs profile of the breast meat was affected by treatments with varying degrees (p˂0.05). The 1 g RNL resulted in the highest eicosapentaenoic acid + docosahexaenoic acid, which resulted in the highest meat lipid quality, the highest elongation index, improved organoleptic characteristics, and tended to improve performance index, feed efficiency, and nutritional index. The 5 g RNL treatment reduced total saturated fatty acids (ƩSFAs), omega-6/omega-3 ratio, especially linoleic acid/α-linolenic acid ratio, alanine aminotransferase, and increased total omega-3 fatty acids, unsaturation index, and Δ9-desaturase. In conclusion, RNL can be introduced to broiler diets, especially at an incorporation rate of 1 g, and it promotes broiler health and performance because it contains phytoconstituents that can alter the content and indices of FAs meat and improve storability and sensory quality.","PeriodicalId":14762,"journal":{"name":"Italian Journal of Animal Science","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730677","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}
Pub Date : 2023-10-16DOI: 10.1080/1828051x.2023.2268116
Francesco Palumbo, Diana Luise, Sara Virdis, Federico Correa, Patrizia Bassi, Paolo Trevisi
Low space availability, high temperatures and a barren environment may contribute to the occurrence of abnormal behaviours and lesions in intensive pig farming. The present study evaluated the housing conditions (HCs), that influence behavioural measures (BMs), and lesion and health measures (LHMs) in growing pigs reared in an Italian farming system. Data collection was carried out on two groups of pigs in each farm (Farm A and Farm B), tail docked (DT) and tail undocked (UT). The HCs measured were dry and wet bulb temperature, light, humidity, air quality, average body weight, pen level of cleanliness, space, and feeder front allowance. Light intensity was negatively associated with positive behaviour (coefficient: −0.01; p < 0.001), while the length of the feeder front was positively associated with the proportion of pigs exploring the pen (coefficient: 65.18; p = 0.04). Tail lesion score index (LSI) increased with an increased frequency of negative behaviour (coefficient: 8.05; p < 0.01), increased light intensity (coefficient: 0.29; p < 0.001) and increased proportion of CO2 (coefficient: 498.31; p < 0.001), while it decreased with the average body weight of the pen (coefficient: −4.04; p < 0.001) and the space allowance (coefficient: −198.93; p < 0.001). Finally, UT pigs showed a greater (p < 0.001) tail LSI than DT pigs (126.8 ± 5.71 and 78.5 ± 9.11, respectively for UT and DT pigs). The present study improved the understanding of the effects of HCs, including tail docking, on welfare parameters of growing pigs.
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