Induction of fertile estrus during lactation in sows
نویسندگان
چکیده
منابع مشابه
Influence of energy intake during lactation on the interval from weaning to first estrus in sows.
A total of 191 crossbred sows were used to determine the effect of energy intake during one lactation on (1) sow and pig performance and (2) the percentage of sows in estrus by 7, 14, 21 and 70 d postweaning. Sows received 8 (Lo) or 16 (Hi) Mcal of metabolizable energy (ME)/d (Exp. 1 and 2) and 8 (Lo), 12 (Md) or 16 (Hi) Mcal of Me/d (Exp. 3) during a 28-d lactation period. All sows were fed an...
متن کاملEffects of energy source in the diet on reproductive hormones and insulin during lactation and subsequent estrus in multiparous sows.
Two experiments were performed. The first experiment was done to study the effects of dietary energy source on plasma insulin concentration using five gilts in a Latin square design with two diets over two periods. The diets contained either 200 g/kg of cornstarch (Starch) or soybean oil (Fat) as energy sources. Results indicate that insulin response was greater in the Starch-fed than in the Fa...
متن کاملInterval to estrus in sows and performance of pigs after alteration of litter size during late lactation.
The effects of altering litter size during the 5 days before weaning on interval to estrus of sows and postweaning performance of pigs were examined. Litters averaged 8.3 +/- .7 pigs from parturition until 5 days before weaning. Litters were then adjusted so that sows (five per group) nursed small- (three pigs), average- (eight pigs) or large-sized (13 to 14 pigs) litters during the last 5 days...
متن کاملInfluence of follicular ablation during lactation on postweaning interval to estrus, ovulation rate, and endocrine function in sows.
Duroc sows farrowed second litters in March and lactated 35 +/- 2 days. At 36 hr before weaning, electrocautery of follicles greater than or equal to 3 mm in diameter (n = 8) or sham surgery (n = 5) was performed to test the hypothesis that ablation of medium-sized follicles would prolong the duration of postweaning anestrus. Number of follicles and diameters at surgery were: 1.3 +/- .6 (greate...
متن کاملA Successful Induction of Lactation in Surrogate Pregnancy with Metoclopramide and Review of Lactation Induction
In surrogate pregnancies genetic parents have little opportunity for early bonding with their infants either prenatally (in utero) or during the immediate postnatal period. Procedures commonly used to induce lactation include both pharmacologic and nonpharmacologic methods often in combination. Studies reporting induced lactation are sparse due to the rarity of augmented lactation. Here we repo...
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ژورنال
عنوان ژورنال: Kansas Agricultural Experiment Station Research Reports
سال: 1983
ISSN: 2378-5977
DOI: 10.4148/2378-5977.6116