动物科学期刊(英文)最新文献_第5页

Research Advance on Application of Microbial Fermented Fodder in Broilers Production: A Short Review 微生物发酵饲料在肉鸡生产中的应用研究进展

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.122015

Yi-Chiang Chang, Saeed Hamid Saeed Omer, Gaoqiang Li, Haoshuai Lian, Yongli Liu

引用次数: 1

Influence of Follicular Fluid on in Vitro Maturation and Fertilization of Bovine Oocytes 卵泡液对牛卵母细胞体外成熟和受精的影响

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.121009

I. Covelo, M. Puente, C. M. Tartaglione

引用次数: 1

Management Practices and Production Constraints of Indigenous Somali Cattle Breed in Shabelle Zone, Somali Regional State, Ethiopia 埃塞俄比亚索马里州谢贝利地区索马里本土牛种的管理实践和生产制约因素

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.121008

Abdihakim Ma’alin, Kawnin Abdimahad, Guled Hassen, Abdulahi Mahamed, Mahamed Hassen

{"title":"Management Practices and Production Constraints of Indigenous Somali Cattle Breed in Shabelle Zone, Somali Regional State, Ethiopia","authors":"Abdihakim Ma’alin, Kawnin Abdimahad, Guled Hassen, Abdulahi Mahamed, Mahamed Hassen","doi":"10.4236/ojas.2022.121008","DOIUrl":"https://doi.org/10.4236/ojas.2022.121008","url":null,"abstract":"This study was conducted in Shabelle zone of Somali Regional State to assess management practices and production constraints of indigenous Somali Cattle. A total of 200 household heads were selected from four cattle potential districts; Dhanan, Ber’ano, Godey & Adadle. The relevant information was collected through semi-structured questionnaire, focus group discussion, key informants interview, and personal observations. Majority of the respondents were illiterate. The average cattle holding size was 8.97 heads/household and cattle were mainly kept for milk production. The major feed resources in the study area were natural pasture and crop residue, and communal grazing was the most important feeding system in the area. Feed shortage was a problem hindering cattle production in the study area during dry season mainly January up to March. Animals traveled long distances to watering points (>5 km) during dry season, while in wet season, animals were watered in nearby water sources. Cattle housing was open kraal fenced with the thorned pl enty acacia trees and calves were housed separately from other cattle. Breeding in the study area was uncontrolled and was bred with their own or neighbors’ bull. Age at first mating, age at first calving and calving interval were 3.25 years, 4.05 years and 16.56 months, respectively. The daily milk yield and lactation length were 2.22 liters and 8.07 months, respectively. The production and reproduction performance of Somali cattle was relatively higher than other local breeds in the country mainly in terms of milk yield and fertility potential under","PeriodicalId":62784,"journal":{"name":"动物科学期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70611596","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: 5

Dietary Fiber in Poultry Nutrition in the Light of Past, Present, and Future Research Perspective: A Review 家禽营养中膳食纤维研究的过去、现在和未来展望

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.124046

N. Sekh, Dibek Karki

{"title":"Dietary Fiber in Poultry Nutrition in the Light of Past, Present, and Future Research Perspective: A Review","authors":"N. Sekh, Dibek Karki","doi":"10.4236/ojas.2022.124046","DOIUrl":"https://doi.org/10.4236/ojas.2022.124046","url":null,"abstract":"Dietary fibers (DF) largely represent carbohydrate polymers of plant origin which are able to escape endogenous enzymatic digestion in the small intestine of non-ruminant hosts like poultry. Traditionally, DF was considered as nutrient diluent, and as an anti-nutritional factor. Dietary fibers, however, have been shown to positively influence digestive system, immune function, microbiota, and also poultry behavior. After the ban of antibiotics and antibiotic growth promoters in many countries, nutritional strategies to meet the genetic potential of poultry breeds have been extensively investigated. Furthermore, increase use of unconventional or alternative feed resources to reduce the feed cost and human food competition have made the DF topic more interesting as such products are generally rich in fiber; therefore can alter the poultry performance. Thus, to produce poultry sustainably and eco-friendly, DF has to be carefully managed in poultry which further requires sound knowledge on feed formulation, source of fiber, type, subtype, form, inclusion rate, and other managerial aspects like exogenous enzyme supplementation. To sum up, this review paper has critically analyzed the dietary fiber related issues including posi-tive and negative sides of DF in modern day’s poultry nutrition. Finally, gaps in previous researches have been also identified and future direction has been suggested to better understand the topic considering therapeutic role of DF in poultry health.","PeriodicalId":62784,"journal":{"name":"动物科学期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70612431","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

Age and Growth of Japanese Mackerel in the High Seas of the Northwest Pacific Ocean 西北太平洋公海日本鲭鱼的年龄和生长

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.121007

Heng Zhang, Chao Yang, Bo Xu, Yongchuang Shi, Guoqing Zhao, H. Han

{"title":"Age and Growth of Japanese Mackerel in the High Seas of the Northwest Pacific Ocean","authors":"Heng Zhang, Chao Yang, Bo Xu, Yongchuang Shi, Guoqing Zhao, H. Han","doi":"10.4236/ojas.2022.121007","DOIUrl":"https://doi.org/10.4236/ojas.2022.121007","url":null,"abstract":"Japanese mackerel (Scomber japonicus) is one of the important economic species in the pelagic light seine fishery in China, but few studies have been reported on the age, growth and management recommendations of Japanese mackerel in the high seas of the northwest Pacific Ocean. In this study, we fitted expressions for the relationship between fork length and body weight of Japanese mackerel based on fork length and body weight data of Japanese mackerel in the high seas of the Northwest Pacific Ocean from 2018 to 2019, and calculated growth parameters and growth characteristics of Japanese mackerel von Bertalanffy growth equation by identifying otolith age data combined with the least squares method. The results showed that the relationship between fork length and body weight of Japanese mackerel in the open sea of the Northwest Pacific Ocean was W = 2.0 × 10 −6 L 3.289 (r = 0.9764, n = 2833); the growth parameters were L = 447.61 ∞ , K = 0.264, t = −1.06 0 ; the growth rate reached the maximum when the bodyweight growth rate was 122 g/yr, at which the inflection point age was 3 years old, the inflection point body weight was 310 g, and the inflection point length was 309 mm. We recommend 2 years of age start fishing with a fork length of 250 mm (±10 mm). The growth parameters of Japanese mackerel in the open sea of the Northwest Pacific Ocean were not significantly different from those of the Japanese mackerel population on Japan’s coast (P > 0.05), Finally, based on the knowledge of biological research and resource evaluation, we suggest that the age of opening trap should be 2 years old and the length of fork should be 250 mm (±10 mm).","PeriodicalId":62784,"journal":{"name":"动物科学期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70611553","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

Colostrum Supplementation as an Aid for Improving Health and Growth Performance of Preweaned Holstein Dairy Calves 初乳添加对改善预断奶荷斯坦犊牛健康和生长性能的帮助

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.124049

Găvan Constantin, R. Mihaela

引用次数: 0

Trace Element Analysis in Sera of Horses with Allergic Dermatitis and in Matched Healthy Controls with Special Attention to Zn, Ni and Ti 变应性皮炎马及健康对照血清微量元素分析，特别关注锌、镍和钛

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.121010

R. Hallamaa, S. Peräniemi

引用次数: 1

Morphological Variation in the Martinican Subspecies White-Breasted Thrasher (Ramphocinclus brachyurus brachyurus) 马提尼察亚种白胸脱毛鱼(Ramphocinclus brachyurus brachyurus)的形态变异

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.121001

Steven Philippe Son, Thomas Alexandrine, S. Motreuil, D. Imbert, Jean-Raphael Gros-Desormeaux

{"title":"Morphological Variation in the Martinican Subspecies White-Breasted Thrasher (Ramphocinclus brachyurus brachyurus)","authors":"Steven Philippe Son, Thomas Alexandrine, S. Motreuil, D. Imbert, Jean-Raphael Gros-Desormeaux","doi":"10.4236/ojas.2022.121001","DOIUrl":"https://doi.org/10.4236/ojas.2022.121001","url":null,"abstract":"The White-breasted Thrasher (Ramphocinclus brachyurus) is the smallest passerine bird in the Mimids family. Ranked as “endangered” in the IUCN list, the demographic distribution of this species is spread unevenly across two islands in the Lesser Antilles. The Saint-Lucian subspecies, Ramphocinclus brachyurus sanctaeluciae, was estimated to number between 1200 and 1700 individuals, whereas the Martinique subspecies, Ramphocinclus brachyurus brachyurus, was estimated at between 200 and 400 individuals. As an endemic rare species with a high risk of extinction, the Martinique subspecies should be regarded as a conservation priority. The small size of the Martinique subspecies population, its restricted geographical range, and its narrow habitat tolerance make it quite difficult to study. The variability of morphological traits in this subspecies has not been biostatistically analyzed recently. In order to update knowledge and fill in any gaps, we have used the morphometric approach to study the morphological variability of the Martinique subspecies. The study site is a small peninsula located in the northeast of the island of Martinique (French West Indies) known as “la Caravelle”. We captured 63 ferent habitats.","PeriodicalId":62784,"journal":{"name":"动物科学期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70611218","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

Effects of Ginger Meal (Zingiber officinale) Associated to Desmodium intortum and/or Stylosanthes guianensis on Growth Performances of Rabbit (Oryctolagus cuniculus) in Cameroon 姜粉和/或柱花草对喀麦隆小兔生长性能的影响

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.124047

Noumedem Fouegap Jodel Ghandi, M. Emile, Tchoffo Hervé, Ebile Dayan Agwah, Yamssi Cédric, Mouchili Mama, V. Narcisse, Fonteh Florence Anyangwe Angaba

引用次数: 0

The Negative Effect of Heavy Metal Salts on the Body of Mammal Animals 重金属盐对哺乳动物身体的负面影响

动物科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojas.2022.124048

M. Bakhrillaeva, Zaynitdin Razamuradov

引用次数: 0