EurekaMag.com logo
+ Site Statistics
References:
48,252,460
Abstracts:
22,798,453
+ 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

Effect of progestogen intra vaginal sponges and pregnant mare serum gonadotropin on synchronization of estrus in maiden heifers and on interval from calving to estrus in beef cows


, : Effect of progestogen intra vaginal sponges and pregnant mare serum gonadotropin on synchronization of estrus in maiden heifers and on interval from calving to estrus in beef cows. New Zealand Journal of Experimental Agriculture 8(3-4): 199-204

The effectiveness of progestogen sponges plus pregnant mare serum gonadotropin (PMSG) in inducing and synchronizing estrus and pregnancy in nulliparous heifers was assessed. Most treated heifers (81%) were synchronized, but none of the controls were. The hormone treatment advanced the mean calving date by 19 days but there was no difference between treatment and control in the percentage of heifers that finally calved. The interval between calving and 1st estrus for hill-country beef cows 2-10 yr old in an untreated control group was 94 days, in a group treated with these sponges plus 1000 IU of PMSG at the time of withdrawal was 85 days. The last treatment reduced post-partum anestrus by 11 days in comparison with the mean of the other 2 treatments (P < 0.01). There was no difference between age groups in the percentage of cows showing estrus, conceiving to 1st service and calving for the control treatment. In the 2 hormone treatments none of the 2-yr-old cows conceived to 1st estrus and 13% calved but 46% of cows in the older age groups conceived to 1st estrus and 79% calved.

(PDF 0-2 workdays service)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 005264239

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

Snyder K.; Lutton J.D.; Levere R.D.; Abraham N.G., 1990: Heme oxygenase depression as a trigger for erythropoiesis. Clinical Research 38(2): 541A

Reid I.C.; Morris R.G.M., 1992: Smells are no surer rapid improvement in olfactory discrimination is not due to the acquisition of a learning set. The claim that rats can demonstrate the 'primate-like' learning capacity of learning set formation when trained with olfactory cues, rather than visual or auditory cues, has generated considerable interest in recent years. In this study,...

Wereszczynska-Cislo, B; Ogorkiewicz, W., 1978: Organization of the food industry information services in the leading countries. Przemysl spozywczy2(11): 407-410

Schukking, S., 1976: The history of silage making. The development of silage-making technology is traced from its beginning 300 years ago, through the various stages including the addition of strong inorganic acids, sugar-rich substances, lacerating and wilting methods and the use of plastic. The...

Minina S.V.; Libyerman Ye A., 1990: Input and output channels of a quantum biocomputer. It is assumed that the quantum molecular computer of the neurones consists of the cell cytoskeleton used as the molecular computing medium (m.c.m.) and input channels sending hypersonic signals monitoring this medium. Sound is propagated through t...

Traian M.; Neculai O., 1992: Exploitation of the Hudesti quartz sand deposit by technological methods. Pages 655-664:

Dalvi, CS.; Dumbre, RB., 1991: Off season biology of mango hoppers. Bulletin of Entomology. June-December; 321-2: 32-39

Dowgiallo Jan, 1973: Origin of sulfates in some ground waters of Poland, based on determinations of delta S-34. Przeglad Geologiczny 21(5): 282-284

Van Allen M.I.; Curry C.; Gallagher L., 1985: Pathogenesis of limb body wall complex 25 cases. American Journal of Human Genetics 37(4 SUPPL): A80

Ustimenko, G. V.; Vasilieva, V. N., 1981: Relationships between correlation links existing between productivity and indices of photosynthetic activity of introduced cultivars of Vigna depending on climatic conditions. In field trials in 1971-5 (a) in dry season and (b) in wet season in Cuba and (c) in the USSR, the relationship between productivity and photosynthetic activity of 8 cv. belonging to V. unguiculata subsp. unguiculata, subsp. cylindrica and subsp....