Journal of animal production最新文献

COMPARISON OF THREE NONLINEAR MODELS TO DESCRIBE THE GROWTH CURVE OF HOLSTEIN-FRIESIAN BULLS RAISED UNDER EGYPTIAN CONDITIONS 三种描述埃及条件下荷斯坦-弗里西亚公牛生长曲线的非线性模型的比较

Journal of animal production Pub Date : 2021-03-10 DOI: 10.21608/EJAP.2021.57448.1007

R.A.M. Somida

{"title":"COMPARISON OF THREE NONLINEAR MODELS TO DESCRIBE THE GROWTH CURVE OF HOLSTEIN-FRIESIAN BULLS RAISED UNDER EGYPTIAN CONDITIONS","authors":"R.A.M. Somida","doi":"10.21608/EJAP.2021.57448.1007","DOIUrl":"https://doi.org/10.21608/EJAP.2021.57448.1007","url":null,"abstract":"The current study aimed to estimate the growth curve parameters through three non-linear models (Logistic, Gompertz and Richards) to determine which model best fits the data. Live weight records of 102 HolsteinFriesian bulls collected between 2017-2019 from a Holstein-Friesian herd that belongs to the Association of Livestock Development (ELLahhamy farm), located thirty kilometers west of Fayoum Governorate. In this work, the parameters of the studied models, asymptotic weight (A), constant of integration (b) and the maturation rate (K) ranged from 626.15 kg to 879.82 kg, 2.708 to 11.08, and 0.0035 to 0.008, respectively. According to the studied parameters of growth functions, Gompertz reached the highest numerical estimated value for (A) and the Logistic function had the lowest value. Parameter (K) estimate by the Gompertz model was similar to that obtained by the Richards model; both values were lower than those attained through the Logistic model (0.008). The inflectionpoint traits, time at Point of inflection (IPT) and weight at point of inflection (IPW) estimates ranged from 300.64 kg to 314.59 kg and 323.92 days to 336.14 days, respectively. The Richards model has the highest estimates of IPW and IPT comparedto the other models, also it had the best adjustment according to model goodness of fitcriteria, by having the lowest values for Akaike information criterion (AIC), Schwarz Bayesian information criter ion (BIC), Mean square error (MSE) and highest coefficient of determination (R2, ,14489.18, 14510.6, 317.37 and 0.9983) followed by the Gompertz, and logistic functions.","PeriodicalId":93197,"journal":{"name":"Journal of animal production","volume":"22 1","pages":"29-33"},"PeriodicalIF":0.0,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81192045","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

CHARACTERIZATION OF SOME PRODUCTIVE AND REPRODUCTIVE TRAITS OF SYRIAN SHAMI AND HOLSTEIN COWS UNDER SYRIAN CONDITIONS 叙利亚条件下叙利亚沙米牛和荷斯坦牛某些生产和繁殖性状的表征

Journal of animal production Pub Date : 2021-03-10 DOI: 10.21608/EJAP.2021.58121.1010

O. Almasri, S. Abou-Bakr, M. A. M. Ibrahim

{"title":"CHARACTERIZATION OF SOME PRODUCTIVE AND REPRODUCTIVE TRAITS OF SYRIAN SHAMI AND HOLSTEIN COWS UNDER SYRIAN CONDITIONS","authors":"O. Almasri, S. Abou-Bakr, M. A. M. Ibrahim","doi":"10.21608/EJAP.2021.58121.1010","DOIUrl":"https://doi.org/10.21608/EJAP.2021.58121.1010","url":null,"abstract":"The objective of this study was to evaluate the productive and reproductive performances of Shami and Holstein cows under the Syrian conditions. In this study, 2654 and 4289 records were collected on 569 Shami and 1669 Holstein cows, respectively during the period from 1978 to 2015 of two experimental stations, Ministry of Agriculture and Land Reclamation, Syria. Data were analyzed using the General Linear Model (XLSTATE. 2020). Age at first calving (AFC), calving interval (CI), total milk yield (TMY), daily milk yield (DMY), and lactation period (LP) were significantly affected (p<0.01) by the breed. The least-square means for AFC, CI, TMY, DMY, and LP were 31±0.14 months, 442±2.83 days, 1587±34.89 kg, 9.1±0.09 kg and 165±2.0 days in Shami breed, respectively, compared to 28.1±0.10 months, 432±3.34 days, 5494±41.21 kg, 16.7±0.11 kg and 332±2.36 days in Holstein breed, respectively, under Syrian conditions. The present study revealed that Shami cows performed less estimates in all studied traits compared to the Holstein cows under the Syrian conditions. Successful management and genetic improvement for Shami cows could enhance their productive and reproductive performances.","PeriodicalId":93197,"journal":{"name":"Journal of animal production","volume":"107 1","pages":"21-28"},"PeriodicalIF":0.0,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78064914","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

ANTI-MÜLLERIAN HORMONE (AMH) AS ENDOCRINE MARKER FOR EMBRYO PRODUCTION IN SUPEROVULATED FRIESIAN COWS Anti-mÜllerian激素(amh)作为超排卵奶牛胚胎生产的内分泌标志物

Journal of animal production Pub Date : 2021-03-10 DOI: 10.21608/EJAP.2021.54592.1006

Ahmed Shehabeldin, Fikry El-Keraby

{"title":"ANTI-MÜLLERIAN HORMONE (AMH) AS ENDOCRINE MARKER FOR EMBRYO PRODUCTION IN SUPEROVULATED FRIESIAN COWS","authors":"Ahmed Shehabeldin, Fikry El-Keraby","doi":"10.21608/EJAP.2021.54592.1006","DOIUrl":"https://doi.org/10.21608/EJAP.2021.54592.1006","url":null,"abstract":"The present study aimed to evaluate follicular dynamics, yield, quality and stage of embryos in superovulated Friesian cows with high and low anti-Müllerian (AMH) levels. A total of 10 Friesian cows synchronized with prostaglandin F2α (PGF2α) to bring them in heat before start superovulation protocol. On day 10 post oestrus, cows were injected with 2500 IU pregnant mare serum gonadotrophin hormone (PMSG), then after 48h cow were injected with 3 ml PGF2α and with 5 ml gonadotrophin releasing hormone (GnRH) to induce ovulation on day 14. Cows were artificially inseminated twice at 12 and 24 h after GnRH. Embryos were collected after 7 days from artificial insemination (AI). To measure AMH concentration, 1 blood sample was collected at the beginning of second follicular wave according to ultrasonography. Results showed that numbers of antral follicles and total follicles were significantly greater in high AMH level than in low AMH level donors. Differences in CL numbers of cows in high AMH level was significantly greater than in low AMH level on flushing day. AMH concentration had a significant positive correlation with antral follicles number pretreatment, total CL number on flushing day, and ovulation rate. The average number and recovery rate of recovered embryos from donor cows with high AMH level were significantly greater than those recovered from cows in low AMH level. Parameters of yield, quality, and stage of embryos had highly significant and positive correlation with AMH level. In conclusion, circulating AMH concentration, as endocrine marker, is highly associated individually with superovulatory response and embryo production potential in cows.","PeriodicalId":93197,"journal":{"name":"Journal of animal production","volume":"8 1","pages":"9-19"},"PeriodicalIF":0.0,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73032945","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

INFLUENCE OF YEAST AND LACTOBACILLUS PRODUCTS AS FEED SUPPLEMENTS ON BLOOD PARAMETERS AND REPRODUCTIVE PERFORMANCE OF LACTATING EGYPTIAN BUFFALOES 酵母和乳酸菌产品作为饲料添加剂对哺乳期埃及水牛血液参数和繁殖性能的影响

Journal of animal production Pub Date : 2021-03-10 DOI: 10.21608/EJAP.2021.45550.1004

Hamdy A. Elnagar

引用次数: 2

FEED VALUE OF PROCESSED AND ENZYME SUPPLEMENTED CASSAVA PEEL IN GROWING PIGS 木薯皮加工和加酶对生长猪的饲料价值

Journal of animal production Pub Date : 2021-03-10 DOI: 10.21608/EJAP.2021.46306.1005

O. Akinola, Susenbeth Andreas, Adeniyi Agunbiade, A. Fanimo, E. Schlecht

引用次数: 0

THE RELATIONSHIP BETWEEN TREATMENT OF BUFFALO DAMS WITH PROBIOTIC AND THEIR CALVES BODY WEIGHT, IMMUNITY AND BLOOD COMPONENTS 水牛犊牛用益生菌处理与犊牛体重、免疫及血液成分的关系

Journal of animal production Pub Date : 2021-01-19 DOI: 10.21608/EJAP.2020.34758.1000

Hamdy A. Elnagar

引用次数: 0

IMPACT OF BUFFALO DAMS TREATMENT WITH PROBIOTICS ON GROWTH PERFORMANCE, IMMUNE RESPONSES AND BLOOD COMPONENTS OF THEIR NEW BORN CALVES 用益生菌处理水牛坝对新生小牛生长性能、免疫反应和血液成分的影响

Journal of animal production Pub Date : 2020-09-01 DOI: 10.21608/ejap.2020.121420

Hamdy A. Elnagar, A. El-Hais, M. Farag

{"title":"IMPACT OF BUFFALO DAMS TREATMENT WITH PROBIOTICS ON GROWTH PERFORMANCE, IMMUNE RESPONSES AND BLOOD COMPONENTS OF THEIR NEW BORN CALVES","authors":"Hamdy A. Elnagar, A. El-Hais, M. Farag","doi":"10.21608/ejap.2020.121420","DOIUrl":"https://doi.org/10.21608/ejap.2020.121420","url":null,"abstract":"This work aimed to identify the relationship between performance, immune system and blood components of neonatal buffalo calves as affected by their dam treatments (DT) with or without probiotic cultures. 40 Egyptian buffalo cows were used in this study. Dams were classified into 4 treatment groups, G1 as control group without any treatment, Saccharomyces cerevisiae yeast culture (20 g/h/d, YC, G2) group, Lactobacillus acidophilus (20 g/h/d, LB, G3) group, or the half dose of each as a combination (G4). The experimental period was 30-d pretill 105-d postpartum. Results revealed that, the dams treated with YC and LB combination (G4), has the best growth performance during birth and weaning, by increasing calf total gain by 31.7% relative to the control group and the immunoglobulins (IgG, IgA and IgM) concentrations in calf plasma and colostrum, during the first three days after calving. All hematological parameters (RBCs count, PCV percentage and Hb concentration), as well as plasma metabolites (total proteins, albumin, globulin, total lipids, total cholesterol and glucose concentrations) increased (P<0.05), while WBCs and creatinine decreased (P<0.05) in calves of treatment groups as compared to control one, being the best in G4 calves. Total antioxidant capacity and triiodothyronine concentration increased (P<0.05), while AST and ALT activity decreased (P<0.05) in calves of treatment groups as compared to control one, being the best in G4 calves. There were highly significant and strong correlation coefficients (r) between immunoglobulins in calf plasma and colostrum. In conclusion, dietary addition of Saccharomyces cerevisiae (10 g/h/d) and Lactobacillus acidophiolus (10 g/h/d) combination in the diets of Egyptian buffalos 30-d preup to 105-d post-partum improved growth performance, immunity response, blood hematology, metabolites, antioxidant capacity, enzyme activity and T3 hormone of the newborn calves.","PeriodicalId":93197,"journal":{"name":"Journal of animal production","volume":"11 1","pages":"101-109"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82380807","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: 1

GENETIC TREND FOR MILK PRODUCTION AND LONGEVITY TRAITS OF EGYPTIAN BUFFALO 埃及水牛产奶和长寿性状的遗传趋势

Journal of animal production Pub Date : 2020-09-01 DOI: 10.21608/ejap.2020.121419

Dalia K. A. EL-Hedainy, Kholood Elbanhawy A.K. Elbanhawy, A. Amin, M. Salem, M. Hammoud, A. El-barbary

{"title":"GENETIC TREND FOR MILK PRODUCTION AND LONGEVITY TRAITS OF EGYPTIAN BUFFALO","authors":"Dalia K. A. EL-Hedainy, Kholood Elbanhawy A.K. Elbanhawy, A. Amin, M. Salem, M. Hammoud, A. El-barbary","doi":"10.21608/ejap.2020.121419","DOIUrl":"https://doi.org/10.21608/ejap.2020.121419","url":null,"abstract":"Data used in this study comprised 1792 records for 1126 buffalo female born from 1980 to 2013, daughters of 101 sires and 896 dams from four buffalo herds (El-Nattafe el gadid, El-Nattafe el kadim, Mahalet mousa and El-gmeza) that belong to the Animal Production Research Institute (APRI), Ministry of Agriculture and Land Reclamation, Egypt. The objective was estimate the heritability and genetic trend of some milk production and longevity traits of Egyptian buffaloes that we know precisely which traits can be improved using genetic improvement. The studied traits were milk production traits (total milk yield, 305days milk yield and lactation period) and longevity traits (total milk yield during the productive life, productive life and number of lactations). The least squares means of the milk production traits were 1176.53, 1172.61 kg and 202 days of the total milk yield, 305-days milk yield and lactation period, respectively. The least squares means of longevity traits were 6905.04 kg, 952 days and 5.6 lactation of total milk yield during productive life, productive life and number of lactations, respectively. The heritability estimates for the milk production traits were 0.498 of the total milk yield, 0.492 of 305-days milk yield and 0.189 for lactation period. The heritability estimates for longevity traits were 0.497 of total milk yield during productive life, 0.498 of productive life and 0.069 of number of lactations. The estimated breeding values for all traits varied widely. The genetic trends of animal and dam breeding values were significant for all studied. This confirms that the genetic improvement of these traits leads to increased milk production.","PeriodicalId":93197,"journal":{"name":"Journal of animal production","volume":"17 6","pages":"95-100"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72582190","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: 1

POSSIBILITY OF USING THE BOVINE SEMINAL PLASMA AS A DILUENT FOR CRYOPRESERVATION OF EGYPTIAN BUFFALO SEMEN 牛精浆作为埃及水牛精液冷冻保存稀释剂的可能性

Journal of animal production Pub Date : 2020-09-01 DOI: 10.21608/ejap.2020.121421

Hamdy A. Elnagar

{"title":"POSSIBILITY OF USING THE BOVINE SEMINAL PLASMA AS A DILUENT FOR CRYOPRESERVATION OF EGYPTIAN BUFFALO SEMEN","authors":"Hamdy A. Elnagar","doi":"10.21608/ejap.2020.121421","DOIUrl":"https://doi.org/10.21608/ejap.2020.121421","url":null,"abstract":"The seminal plasma separated from ejaculates of the same or different animal species has been used as an extender for semen preservation to minimize the negative effects of reduced temperatures and cryo-damage on mammalian spermatozoa. The semen of sexually-matured buffalo bulls (n=5) collected at 3-4 day-interval by artificial vagina was used in this study for a duration of 12 weeks. Spermatozoal mass motility was at least 70%. Semen was collected, pooled, diluted with bovine seminal plasma (BSP) (after adding egg-yolk, glycerin and anti-biotics) or Tris-extender at 3 dilution rates (1:10, 1:15 and 1:20), equilibrated at cool temperature (4-5C) for 2 h, frozen for one month at -196C (liquid nitrogen), and thawed at 37C for 15 s. Semen was evaluated for the percentages of progressive motility (PM), live sperm (LS), sperm abnormalities (SA), acrosome damage (AD), and membrane integrity (MI) in diluted, equilibrated and thawed cases, besides the head to head agglutination (HHA) percentage post-thawing. In the sperm medium of thawed semen, AST, ALT, LDH activities and total antioxidant activity (TAA) levels were also determined. Sperm fertilizability was recorded based on the best results for BSP or Tris-extender. Results showed that freezability parameters (PM, LS, SA, AD, MI and HHA percentages), the activity of AST, ALT and LDH, and TAA and conception rate were improved (P<0.05) for thawed buffalo semen diluted with BSP at a rate of 1:20 in comparison with Tris-extender at 1:10. The bovine seminal plasma of excluded ejaculates for poor quality could be considered as a promising successful extender for cryopreserved buffalo semen.","PeriodicalId":93197,"journal":{"name":"Journal of animal production","volume":"4 1","pages":"111-120"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74522234","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: 1

BIOCHEMICAL EVALUATION OF MEAT AND HAEMOLYMPH OF AFRICAN LAND SNAIL (ARCHACHATINAMARGINATA, SWAINSON) IN SOUTH-WEST NIGERIA 尼日利亚西南部非洲蜗牛(archachatinamarginata, swainson)肉和血淋巴的生化评价

Journal of animal production Pub Date : 2020-09-01 DOI: 10.21608/ejap.2020.121422

K. Adelakun, K. Adelakun, S. Halidu, T. Babatunde, B. Fadimu

引用次数: 2