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Beitrage zur tropischen Landwirtschaft und Veterinarmedizin最新文献

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Livestock production on Masai group ranches. 2. Growth and liveweight in goats and sheep at Elangata Wuas and the factors influencing them. 马赛族牧场的牲畜生产。2. 伊兰加塔山羊和绵羊的生长和活重及其影响因素。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1983-01-01
R T Wilson, C Peacock, A R Sayers
{"title":"Livestock production on Masai group ranches. 2. Growth and liveweight in goats and sheep at Elangata Wuas and the factors influencing them.","authors":"R T Wilson,&nbsp;C Peacock,&nbsp;A R Sayers","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In 1101 goats and 547 sheep kept under ranch conditions the liveweight development was measured and compared between their 10th and 550th day of life. Consideration was given to factors such as sex, parity, birth type, season of birth, and flock. Post-partum weights of the dams are given and analysed for the same variables. Management of the flocks is the proximate factor in growth rates and liveweight, but almost all other variables also have significant effects on the weight-for-age. Management is also responsible for the biggest differences in weights in post-partum females, while season had a greater effect on this factor in sheep than in goats.</p>","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"21 2","pages":"191-8"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17681252","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
Growth and reproductive performance of Shorthorn crosses and native cattle as affected by two levels of feeding. 两种饲喂水平对短刺杂交牛和土牛生长和繁殖性能的影响。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1983-01-01
I F Marai, A A Abdel-Malek, L Bedeir, G H Metry
{"title":"Growth and reproductive performance of Shorthorn crosses and native cattle as affected by two levels of feeding.","authors":"I F Marai,&nbsp;A A Abdel-Malek,&nbsp;L Bedeir,&nbsp;G H Metry","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>6 male and 5 female calves each of Shorthorn X Domiatti crosses and 3 female calves each of the Domiatti breed were fed either the norm (100% allowance) or a lower ratio (80% allowance) between their 28th and 72nd weeks of age. The growth of all animals differed significantly with regard to the different allowance levels but not with regard to the breeds. In the female animals no differences were found in the age and live weight at puberty, the first conception, and calving between the two feeding levels. In the male animals there were no differences in the age at puberty with both feeding levels, though there were significant differences in the live weight at puberty. The semen volume, sperm motion, and sperm concentration were not significantly affected.</p>","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"21 2","pages":"199-205"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17681253","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
Bovine mastitis in selected dairy farms in Morogoro district, Tanzania. 坦桑尼亚莫罗戈罗地区选定奶牛场的牛乳腺炎。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1983-01-01
L D Kinabo, R J Assey
{"title":"Bovine mastitis in selected dairy farms in Morogoro district, Tanzania.","authors":"L D Kinabo,&nbsp;R J Assey","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The dairy cattle herds in three farms of the Morogoro district, Tanzania, were surveyed for the presence of clinical mastitis and subclinical mastitis. Modern tests were used for assessment. Bacterial isolations were supplemented by bacterial and cell counts. The findings support the demands for milk pasteurization and the establishment of udder health services.</p>","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"21 1","pages":"65-71"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17921183","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
[Epidemiology of anthracnosis and eye spot disease, conclusions for its prognosis of occurrence and its control in the Republic of Cuba]. [古巴共和国炭疽病和眼斑病的流行病学，其发生预后和控制结论]。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1982-01-01
V Tenckhoff
{"title":"[Epidemiology of anthracnosis and eye spot disease, conclusions for its prognosis of occurrence and its control in the Republic of Cuba].","authors":"V Tenckhoff","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The course of attacks by anthracnosis and by the eye spot disease on branches, leaves, and fruits of Coffea arabica L. were investigated in Cuba. The daily precipitation and the shading are most influential for both diseases. There are marked differences in the attacks between the rainy season (highest attacks) and dry season (decreased attacks). Lack of shading increases the susceptibility of the plants to the eye spot disease. Under the conditions in Cuba, unshaded plantations exhibited an increased occurrence of anthracnosis. In order to predict the occurrence of anthracnosis, it is necessary to know the seasonal course of the sporulation capacity of the agent on the branches, for the eye spot disease to know the course of attacks on the leaves. The possibilities are discussed of controlling the two diseases.</p>","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"20 2","pages":"183-93"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18141898","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
[Economic problems and contradictions in mineral fertilizer application for solving nutrition problems in the developing countries]. [发展中国家应用矿肥解决营养问题的经济问题与矛盾]。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1982-01-01
H Droste, G Müller
{"title":"[Economic problems and contradictions in mineral fertilizer application for solving nutrition problems in the developing countries].","authors":"H Droste,&nbsp;G Müller","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The optimum application of mineral fertilizers in the agriculture of the developing countries is inhibited by the monopolization of the mineral fertilizer industry in the capitalist economic world system and the numerous contradictions in the developing countries themselves. Thus it requires the full state sovereignty and economic independence of the developing countries, and the creation of such social conditions which enable the further extension and better utilization of the fertilizer capacities as well as the optimum fertilizer application. This means applying mineral fertilizers in the best possible way in order to ensure the nutrition of their own population and aiming at agrarian structures which promote mineral fertilization, restructuring the system of mineral fertilizer prices, and developing the mineral fertilizer service.</p>","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"20 3","pages":"217-29"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17356496","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
Plasma biochemical parameters West African dwarf rams and their crosses with Permer. 西非矮公羊及其与Permer杂交的血浆生化参数。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1982-01-01
K D Thomas, O Chiboka
{"title":"Plasma biochemical parameters West African dwarf rams and their crosses with Permer.","authors":"K D Thomas,&nbsp;O Chiboka","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The West African dwarf (WAD) is the prevailing breed in the South Western part of Nigeria, whereas Permer (P) is a cross of Persian and Merino sheep. Since the mortality rate is unacceptably high in Permer-even under favourable conditions-several plasma variables were determined in 5 WAD and WAD X P rams twice on Mondays over 5 weeks with a view to health prophylactic measures. Differences between the breeds were found that did not, however, in any case agree with the values found by other authors and that suggested a connection with certain diseases. This should be investigated in investigations to come.</p>","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"20 1","pages":"57-62"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18215551","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
[1st results of weed control in teff, Eragrostis tef (Zucc.) Trott]. [footnoteref: 1]苔草杂草防治第一成果，Eragrostis tef (Zucc.)。Trott)。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1982-01-01
J Pohlan
{"title":"[1st results of weed control in teff, Eragrostis tef (Zucc.) Trott].","authors":"J Pohlan","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"20 2","pages":"125-9"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18142059","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
Persistence of carbaryl residues in and on unprocessed and processed cauliflower curds. 未加工和加工过的花椰菜凝乳内和表面的西维因残留。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1982-01-01
P R Yadav, R S Jaglan
{"title":"Persistence of carbaryl residues in and on unprocessed and processed cauliflower curds.","authors":"P R Yadav,&nbsp;R S Jaglan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Carbaryl was applied three times at 15 days interval to cauliflower (Brassica oleracea var. botrytis L.), and its persistence was determined spectrophotometrically at 0, 1, 3, 6, 10, and 15 days after the first and last treatments. In unprocessed cauliflower the prescribed tolerance level for carbaryl residues of 5 ppm was only reached on the sixth day, in processed cauliflower on the third day after application. Pretreatment with washing + boiling/cooking on the other hand led to a considerable decrease of the carbaryl residues already on the day of application. The lower carbaryl values encountered in all variants after the last application are attributed by the authors to a thinning effect due to an increased cauliflower mass.</p>","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"20 1","pages":"89-95"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17859846","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
A technique for identifying two major genes for resistance to Puccinia hordei Otth. combined in Midas spring barley. 一种鉴定小麦锈菌抗性两个主要基因的技术。迈达斯春天的大麦
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1982-01-01
A C Udeogalanya
{"title":"A technique for identifying two major genes for resistance to Puccinia hordei Otth. combined in Midas spring barley.","authors":"A C Udeogalanya","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"20 3","pages":"283-6"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18196532","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
Feed consumption and efficiency of feed utilization in chickens as affected by restriction of feed intake under subtropical conditions. 亚热带条件下限制采食量对鸡饲料消耗和利用效率的影响。
Beitrage zur tropischen Landwirtschaft und Veterinarmedizin Pub Date : 1982-01-01
M N Makled, A M El-Gammal, M A El-Deeb
{"title":"Feed consumption and efficiency of feed utilization in chickens as affected by restriction of feed intake under subtropical conditions.","authors":"M N Makled,&nbsp;A M El-Gammal,&nbsp;M A El-Deeb","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The influence of restricted feeding was investigated in 1145 Dandarawi (D) and 1092 Rhode Island Red (RIR) chickens and in 294 D and 211 RIR hens in their first laying year. The feed utilization during the rearing period (8 to 22 weeks of age) and the feed utilization for the egg production were not significantly affected by a reduction to 85 or 70% of the ad-libitum feeding ration during rearing and/or in the first laying year of both breeds. A feed restriction to 70% is recommended for D and to 85% for RIR chickens during the rearing period followed by ad-libitum feeding.</p>","PeriodicalId":75586,"journal":{"name":"Beitrage zur tropischen Landwirtschaft und Veterinarmedizin","volume":"20 3","pages":"295-302"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17948618","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
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