Wheat Stubble from Conventional or Conservation Agriculture Grazed by Ewes: Biomass Dynamics and Animal Performances
Impact factor: 0.146 (Year: 2020)
MetadataShow full item record
Timeless limited access
Hajer Guesmi, Cyrine Darej, Salah Ben Youssef, Mohamed Chakroun, Sourour Abidi, Hichem Ben Salem, Nizar Moujahed. (30/6/2020). Wheat Stubble from Conventional or Conservation Agriculture Grazed by Ewes: Biomass Dynamics and Animal Performances. Animal Nutrition and Feed Technology, 20 (2), pp. 187-200.
This experiment aimed to determine the effect of stocking rates and cropping systems (conventional agriculture; Conv A vs. conservation agriculture; Cons A) on biomass dynamics and animal performance parameters of ewes grazing on wheat stubble. Forty Barbarine ewes were divided into eight homogeneous groups and allotted equally to the two cropping systems. Two stocking rates of 15 (SR15) and 30 (SR30) ewes/ha were tested for each cropping system, during a period of 60 d. Stubble biomass and BW variations were monitored at periodic intervals. Blood was sampled thrice during the study period at 15 d intervals. Results showed that the stubble biomass exhibited a gradual decrease (P<0.0001) with the progression of the duration by margins of -85.6 and -81.3% on DM basis, respectively, in Conv A and Cons A, as compared to initial biomass. Further, the biomass was also significantly (P=0.03) affected by the cropping system with a higher value in Conv A than Cons A. The variations in biomass chemical composition showed that the CP content decreased (P<0.0001) with advancing of period, while that of ADF increased (P<0.0001). Additionally, there was a significant effect (P=0.0002) of cropping mode evident in the nutritional composition. Overall, the animals maintained their average BW between the beginning (47.16 kg) and the end (47.36 kg) of the experiment. The blood parameters measured were well within the ranges of normal values for sheep. The stocking rates did not show impact on any of the parameters, with the values being generally similar between stocking rates and cropping systems. It is concluded that while the stocking rate had no effect on the measured variables, conservation agricultural system seemed to keep a higher proportion of residual biomass at the end of the experiment as compared to conventional agriculture.
- Agricultural Research Knowledge 
Showing items related by title, author, creator and subject.
Title: International Winter Wheat nurseries data: Facultative and Winter Wheat Observation Nurseries and International Winter Wheat yield trials for semi-arid and irrigated conditions Date: 2022-02-02Status: Open accessThis data paper describes the content of 16 datasets collected under the International Winter Wheat Improvement Program (IWWIP), an alliance between Turkey-CIMMYT-ICARDA (TCI), during the 2015–2016, 2016–2017, 2017–2018 ...
Title: Meeting the Challenges Facing Wheat Production: The Strategic Research Agenda of the Global Wheat Initiative Author(s)Langridge, Peter; Alaux, Michael; Almeida, Nuno Felipe; Ammar, Karim; Baum, Michael; Bekkaoui, Faouzi; Bentley, Alison; L. Beres, Brian; Berger, Bettina; Braun, Hans-Joachim; Brown-Guedira, Gina; Burt, Christopher James; Caccamo, Mario Jose; Cattivelli, Luigi; Charmet, Gilles; Civan, Peter; Cloutier, Sylvie; Cohan, Jean-Pierre; J Devaux, Pierre; M Doohan, Fiona; Dreccer, Fernanda; Ferrahi, Moha; German Faedo, Silvia Elisa; Goodwin, Stephen B; Griffiths, Simon; Guzmán García, Carlos; Handa, Hirokazu; Hawkesford, Malcolm John; He, Zhonghu; Huttner, Eric; M Ikeda, Tatsuya; Kilian, Benjamin; King, Ian Philip; King, Julie; Kirkegaard, John; Lage, Jacob; Le Gouis, Jacques; Mondal, Suchismita; Mullins, Ewen; Ordon, Frank; Ortiz-Monasterio, Jose Ivan; Özkan, Hakan; Öztürk, Ifran; Pereyra, Silvia; Pozniak, Curtis; Quesneville, Hadi; C. Quincke, Martin; Rebetzke, Greg John; Reif, Jochen Christoph; Saavedra-Bravo, Teresa; Schurr, Ulrich; Sharma, Shivali; Kumar, Sanjay; Singh, Ravi; Snape, John W.; Tadesse, Wuletaw; Tsujimoto, Hisashi; Tuberosa, Roberto; G. Willis, Tim; Zhang, XueyongDate: 2022-11-07Status: Open accessWheat occupies a special role in global food security since, in addition to providing 20% of our carbohydrates and protein, almost 25% of the global production is traded internationally. The importance of wheat for food ...
Author(s)Keser, Mesut; Gummadov, Nurberdy; Akin, Beyhan; Belen, Savas; Mert, Zafer; Taner, Seyfi; Topal, Ali; Yazar, Selami; Morgounov, Alexey; Sharma, Ram; Özdemir, FatihDate: 2017-12-03Status: Open accessWheat breeders in Turkey have been developing new varieties since the 1920s, but few studies have evaluated the rates of genetic improvement. This study determined wheat genetic gains by evaluating 22 winter/facultative ...