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Reproductive performance of sows treated with gonadotropins and vitamins A, D, and E postpartum / by Magdalena Nueva Alcantara. by
Material type:  Text; Format:
print
Language: English
Publication details: Mu�oz, Nueva Ecija, Cavite State University- Main Campus, 1993
Online access: - ALCANTARA, MAGDALENA N: Institute of Graduate Studies Central Philippines, State University, Munoz, Nueva Ecija 1992. THE REPRODUCTIVE PERFORMANCE OF SOWS TREATED WITH GONADOTROPINS AND VITAMINS A, D AND E POTPARTUM: Dr, Libertado C. Cruz Experiment I assessed the In from farrowing to first successful estrus, litter size, farrowing interval, weaning period and sow index using records in two years of and 24 sows in a privates and a government pig farm, respectively In experiment II, 60 now weaned sows of the same breed and nutritional status, by parity, were grouped into-four treatments, namely; AA. - control; T2 (s600 10/3.0 mgl at day; T3 - hCG/estradiol hCGestradiol IU/30 mg) at day 7 day T4 hCGestradiol/PMSG (200 3/10 mg/400 10) at day 0; day 0 = weaning day). In experiment 48 newly weaned sows of the same and nutritional status were blocked by parity and were distributed into four group as follows: Ti - ) control; - Vitamins A: D end E (2,000,000 IU/300,000 10/200,000 T3 - hCG (600 ILI) at weaning; and TA – in CG/Vitamins A and E (600 IU and 2.000,000 300.000 1U/ 200,000 IU). Administration of hormone vitamins was done at weaning time. In Experiments t and III, a hormone was given at 3.cc per animals 112 while Vitamins A. 0 and E was administered at 4 cc per animal. The parameters gathered were occurrence of estrus, litter size, birth weight as well as percentage of still births and mummified fetuses, Data gathered were analyzed using GLM and LSD of Mean litter size was smallest at parity 1 (9.06 -4- 1.41) and biggest at parity 4 (9,60 t 1.5) in the private farm. In the government farm the smallest mean litter size was noted In parity 1 (9.08 1, 11) white the biggest was noted in parity 3 (9.68 4' 1.06). Mean farrowing interval was lonest between na-it4e,-, and 2 (188.60. ±. 8.44 and 168.25 t 15.09), shortest between parities 3 and' • 4 (165, 20 respectively for both private and institutional herds a. mean sow it-telex at t 0, 14 was observed in the private +arm while it was 2.2 t 0,00 in the institutional farm. and 162,95 9.67) The mean interval -from -farrowing to -first successful estrus was longest at parity 1 (71.98 7.74) and shortest at parity 3 (50.26 5.67) in the private farm. In the government farm, the longest and shortest mean intervals am farrowing to first successful estrus (54.42 25.86) 4q.47 respectively. Irrespective of parity, the average interval from 10,12) were noted also in parities 1 and 3, farrowing to first successful estrus ranged from 31 to 270 Lys in the private herd with P, 40 to 98 days in the ) government herd. In study II, treatments of saws with hOG/estradiol (600 1U/3.0 mg) and PMSG/hCG/estradiol (400 IU/200 1U/1.0 mg) Immediately at weaning time significantly shortened the interval from farrowing to first postpartum estrus compared C the control (3.22 t 0.20 and 1..0I 0.20 vs. 7.83 .17). Delaying the hormonal treatment (T31 to 7 days after weaning had no advantage. No differences noted on significant treatment size although Ii the MSG/hOG/estradiol 17rotIn had bigger mean litter size was noted (9.72 t than the control (9.2) f 0.45). The last study confirmed that estrus occurred Significantly earlier in the hOG/estradiol treated groups had bigger mean litter size .4.0 in the untreated group (3.82 0.65 to 3.96 ± 0.65 vs "/". 0.65 to 9.73 .11-. 0,65), No significant effect of Vitamins A. 0 and E or their combination was gonadotropin, noted on litter size although Vitamins A, 0 and E treated group had bigger mean litter size hCG/estradiol ,than the t 0,42) treated group. The heaviest mean birthweight of 1.27 4... 0.04 kg was exhibited by animals given Vitamins A, D and E and the lightest (1.22 ±, 0, 04) was recorded both by the control and hCG/estradiol demonstrated groups. Differences„ were statistically insignificant. Estimated economic returns showed that hCG/PMSG treated had a net income advantage of P 430,98 over the other groups, which was equivalent to P44.34 per Vitamins A, D and E/hOG treated. Group, on the other hand, had P9.42 net income advantage over the other treatments; which is equivalent to P0.96 per piglet
Availability: Not available: Ladislao N. Diwa Memorial Library: Room use only (1).
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