EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Simulated effects of changing strategies on production performance of gobra zebu cattle


, : Simulated effects of changing strategies on production performance of gobra zebu cattle. Agricultural Systems 23(4): 277-286

Analyses of various management strategies available for the production of Gobra Zebu cattle at Dahra Research Station [Senegal] were conducted using a dynamic cattle production simulation model. Growth, milk production, forage and management characteristics collected at the station were the major input data used. Effects of the management strategies on production performances were predicted by examining changes in breeding season, breeding age, weaning age and supplementation regimes on productivity indices. The indices used were efficiency of nutrient utilization (ENU), defined as liveweight sold per 100 kg DM consumed, and cow productivity index (CPI), defined as liveweight sold per cow exposed. When females were exposed to calve first at 3 years of age, the ENU (94.4) and CPI (4.04) were highest for breeding from September to November and lowest (77.93 and 3.43, respectively) for breeding from July to September. Weaning at 7 months of age resulted in the highest ENU and CPI (94.89 and 3.95) while weaning at 5 months generated the lowest ENU and CPI (83.93 and 3.58). Among all feeding alternatives, the highest EMU (105.84) and CPI (4.21) were obtained when the entire cow herd was supplemented from May to July. Supplementation of mature cows only was the most desirable strategy among the selective supplemental feeding practices wiht regard to cow age classes. Results provided valuable guidelines for selecting management practices likely to increase Gobra Zebu productivity.

(PDF same-day service: $19.90)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 006418175

DOI: 10.1016/0308-521X(87)90048-5

PDF Full Text: Submit


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Shimizu, S.; Enoki, Y., 1992: Temporal patterns and renal production site of EPO in hypoxic rats. Japanese Journal of Physiology 42(SUPPL ): S86

Lizarondo, M. S.; Valdellon, T. C., 1985: Production and marketing operations of tuna fishermen and traders in the Philippines. The study describes and analyses the tuna marketing system in the Philippines. Analyses show that tuna distribution involved 15 types of marketing flows and fish assemblers and that wholesalers procured the bulk of the catch. Fishermen sold direct...

Kleczek, C., 1973: Effect of nitrogen fertilizers on palatability of some species of grasses and their ecotypes in pasture feeding of cows. Przeglad hodowlany: 31, 41 (10) 17

Watson, A. T., 1901: On the structure and habits of the Polychoeta of the family Ammocharidae. Journal of the Linnean Society, XXVIII 230-260

Mulder, T., 1983: The brent-goose in Wieringen.. Natura (Hoogwoud): 808: 364-368

Matukhin, G. R.; Maksimova, E. V., 1960: Effect of gibberellic acid on the growth and development of chrysanthemums. It was established that gibberellic acid (GA) affects not only the growth processes of chrysanthemums, but also accelerates their generative development. Plants treated with a 0.02% solution of GA flowered 1 1/2 months earlier than controls. Resul...

Gross, Wb; Colmano, G., 1971: Effect of infectious agents on chickens sleected for plasma corticosterone response to social stress. Poultry science: 50 (4) 1213-1217

Barea, Jm; Olivares, J; Aguilar, A; Callao, V., 1971: Microbial reduction of MnO2 and its application to agricultural soils deficient in assimilable Mn. I. Microbiological and analytical studies of a mould of the soil capable of Mn solubilization. Agrochimica 15 (4 5) 472-479

Hedderson, Terry A.; Longton, Royce E., 1993: Patterns of life history variation in the Funariales, Polytrichales, and Pottiales. American Journal of Botany 80(6 SUPPL ): 8

Macilwain, Colin, 1998: Gore calls for action on climate change as Congress stalls. Vice President Al Gore last week attacked Congress for trying to block a program to curb the growth of greenhouse gas emissions in the U.S. Gore told a news conference in Washington, D.C., of the accumulating evidence for global warming and cited...