The majority of livestock in the rural areas of Africa are indigenous types that are not well defined as breeds as perceived by the developed world. The animals in this important sector have remained largely uncharact...The majority of livestock in the rural areas of Africa are indigenous types that are not well defined as breeds as perceived by the developed world. The animals in this important sector have remained largely uncharacterised and face the risk of genetic dilution due to indiscriminate crossbreeding, breed replacement and neglect. This article uses two examples to describe a system that has been implemented in South Africa that allows indigenous livestock from rural keepers to enter the seed stock industry as recognized breeds. The first example is the indigenous Nguni breed of cattle that has been successfully developed into a seed stock breed, with a society celebrating its 25th anniversary in November 2011. The second example involves the challenges of developing a seed stock industry for some of the unimproved indigenous goat breeds of South Africa. Climate change is expected to have a more extreme effect on southern hemisphere continents than on other continents. Such negative effects will include high ambient temperatures, nutritional stress and altered patterns of animal diseases. With the likelihood of global warming, these adapted genotypes can play a very important role in sustainable livestock production.展开更多
With the development and progression of society, people pay more attention to the concept of protecting cattle. Animal welfare in developed countries has become an accepted concept. But according to these developing c...With the development and progression of society, people pay more attention to the concept of protecting cattle. Animal welfare in developed countries has become an accepted concept. But according to these developing countries, animal welfare has gradually become an obstacle for exporting their products. In order to surpass this boundary, some ideas and suggestions are put forward.展开更多
Study was conducted to assess the possible transfer of heavy metals from livestock feeds to animal products. In experiment-l, samples （n = 503） collected from conventional farms in Central Greece were analysed for h...Study was conducted to assess the possible transfer of heavy metals from livestock feeds to animal products. In experiment-l, samples （n = 503） collected from conventional farms in Central Greece were analysed for heavy metal Copper （Cu）, Zinc （Zn）, Cadmium （Cd）, Lead （Pb）, Nickel （Ni） and Chromium （Cr） contents in muscle tissues, livers, kidneys, excremental and basic mixtures in livestock such as cows and sheep. Results showed that transfer of heavy metal contaminants from feed to animal products fluctuated below the permissible risk levels. In experiment 2, samples （n = 440） of feedstuffs used in different feeding regimens and seasons at different livestock farms [sheep （n = 140）, dairy cows （n = 180）, pigs （n = 120）] were collected. Results showed that relatively high concentration of Cu in the excrements of pigs （155 ＋ 9.13） and Zn in the excrements of sheep （144.56 ＋ 5.78） are explained by the use of Cu in the diet of developing piglets and sheep. Ovine showed higher concentration ofNi, Cr, and Pb in their excrements, while, the concentration of heavy metals in forages was under the allowed range to the EU legislation.展开更多
Identification of lxodid tick species on livestock in two districts, viz., D.I. Khan and Lakki Marwat of Northern Pakistan were made during the period from March to November 2009 through animals＇ survey and questionn...Identification of lxodid tick species on livestock in two districts, viz., D.I. Khan and Lakki Marwat of Northern Pakistan were made during the period from March to November 2009 through animals＇ survey and questionnaire. The main tick species were Amblyomma （14.3%）, Boophilus microplus （l 8.5%） and Hyalomma anatolicum and H. dromedarii （67.2%）. Out of 3009 collected ticks, the highest number of female （88.7%） and the lowest of males （ l 1.3%） belong to Boophilus; the lowest number of female （92.4%） and the highest of males （77.5%） belong to Amblyomma. However, cows were more susceptible than buffaloes and camels ranked third to ticks infestation. Moreover, cows, buffalos, goats and sheep harbored mixed infestation （had more than one type of ticks）, however, camels and donkey harbored single infestation （had only one type of tick）. An emerging ethno-veterinary or traditional remedy is poultry keeping for ticks＇ elimination in Lakki Marwat. The results of this research will be helped in taking appropriate measures to reduce tick infestation and to improve management practices. Hence, it will help to increase farm productivity and farmers income.展开更多
文摘The majority of livestock in the rural areas of Africa are indigenous types that are not well defined as breeds as perceived by the developed world. The animals in this important sector have remained largely uncharacterised and face the risk of genetic dilution due to indiscriminate crossbreeding, breed replacement and neglect. This article uses two examples to describe a system that has been implemented in South Africa that allows indigenous livestock from rural keepers to enter the seed stock industry as recognized breeds. The first example is the indigenous Nguni breed of cattle that has been successfully developed into a seed stock breed, with a society celebrating its 25th anniversary in November 2011. The second example involves the challenges of developing a seed stock industry for some of the unimproved indigenous goat breeds of South Africa. Climate change is expected to have a more extreme effect on southern hemisphere continents than on other continents. Such negative effects will include high ambient temperatures, nutritional stress and altered patterns of animal diseases. With the likelihood of global warming, these adapted genotypes can play a very important role in sustainable livestock production.
文摘With the development and progression of society, people pay more attention to the concept of protecting cattle. Animal welfare in developed countries has become an accepted concept. But according to these developing countries, animal welfare has gradually become an obstacle for exporting their products. In order to surpass this boundary, some ideas and suggestions are put forward.
文摘Study was conducted to assess the possible transfer of heavy metals from livestock feeds to animal products. In experiment-l, samples （n = 503） collected from conventional farms in Central Greece were analysed for heavy metal Copper （Cu）, Zinc （Zn）, Cadmium （Cd）, Lead （Pb）, Nickel （Ni） and Chromium （Cr） contents in muscle tissues, livers, kidneys, excremental and basic mixtures in livestock such as cows and sheep. Results showed that transfer of heavy metal contaminants from feed to animal products fluctuated below the permissible risk levels. In experiment 2, samples （n = 440） of feedstuffs used in different feeding regimens and seasons at different livestock farms [sheep （n = 140）, dairy cows （n = 180）, pigs （n = 120）] were collected. Results showed that relatively high concentration of Cu in the excrements of pigs （155 ＋ 9.13） and Zn in the excrements of sheep （144.56 ＋ 5.78） are explained by the use of Cu in the diet of developing piglets and sheep. Ovine showed higher concentration ofNi, Cr, and Pb in their excrements, while, the concentration of heavy metals in forages was under the allowed range to the EU legislation.
文摘Identification of lxodid tick species on livestock in two districts, viz., D.I. Khan and Lakki Marwat of Northern Pakistan were made during the period from March to November 2009 through animals＇ survey and questionnaire. The main tick species were Amblyomma （14.3%）, Boophilus microplus （l 8.5%） and Hyalomma anatolicum and H. dromedarii （67.2%）. Out of 3009 collected ticks, the highest number of female （88.7%） and the lowest of males （ l 1.3%） belong to Boophilus; the lowest number of female （92.4%） and the highest of males （77.5%） belong to Amblyomma. However, cows were more susceptible than buffaloes and camels ranked third to ticks infestation. Moreover, cows, buffalos, goats and sheep harbored mixed infestation （had more than one type of ticks）, however, camels and donkey harbored single infestation （had only one type of tick）. An emerging ethno-veterinary or traditional remedy is poultry keeping for ticks＇ elimination in Lakki Marwat. The results of this research will be helped in taking appropriate measures to reduce tick infestation and to improve management practices. Hence, it will help to increase farm productivity and farmers income.
