+ Translate

Effect of feeding supplemental fat or lysine during the postweaning period on the reproductive performance of sows with low or high lactation body weight and fat losses

, : Effect of feeding supplemental fat or lysine during the postweaning period on the reproductive performance of sows with low or high lactation body weight and fat losses. Canadian Journal of Animal Science 72(3): 679-690

The effects of feeding supplement fat or lysine during the postweaning period on breeding and subsequent reproductive performance were determined in two experiments of a 2 times 3 factorial design, using 168 Landrace times Yorkshire first-parity (exp. 1) and 180 Yorkshire second-parity (exp. 2) sows. At the end of lactation, they were divided into two groups: LWL ( lt 14 kg) and HWL ( gt 14 kg) based on 3 wk lactation weight loss. The three experimental diets fed during the postweaning period were: (1) control; a 12% gestation diet fed 2 kg d-1 (24.7 MJ DE, 9.4 g lysine d-1); (2) Fat, control diet plus animal fat to provide approximately 50% more daily energy intake (37.0 MJ DE d-1) and (3) Lysine; control diet plus lysine to provide approximately 50% more daily lysine intake (14.4 g d-1). After breeding, all sows were fed the control diet at 2 kg d-1, and they were killed at 30 d of gestation to evaluate their reproductive performance. High weight loss during the lactation period increased the incidence of anestrus and reduced the pregnancy rate in first-parity sows. Feeding supplemental fat was benefical in increasing the proportion of sows in estrus within 7 d postweaning and the pregnancy rates of first-parity sows with high lactation weight loss. Supplemental fat also had a beneficial effect on ovulation rate, the number of normal embryos, fetal survival and the fetal weights, whereas supplemental lysine improved only fetal weights. Feeding supplemental fat or lysine improved only ovulation rate in second-parity sows with high lactation weight loss. The results indicated that feeding supplemental fat or lysine can improve postweaning reproductive performance of sows that had high weight and fat losses during lactation.

(PDF 0-2 workdays service)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 002355733

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:

Other references

Gibowicz Slawomir J.; Harjes H. P.; Schaefer M., 1990: Source parameters of seismic events at Heinrich Robert Mine, Ruhr Basin, Federal Republic of Germany; evidence for nondouble-couple events. Bulletin of the Seismological Society of America 80(1): 88-109

Meindl, A.; Pusch, C. M.; Zeitz, C. M.; Brandau, O.; Pesch, K.; Feil, S.; Ramser, J.; Maurer, J.; Hellebrand, H.; Hardcastle, A.; Wissinger, B.; Berger, W., 2001: The complete form of X-linked congenital stationary night blindness is caused by mutations in a gene encoding a leucine-rich repeat protein. European Journal of Human Genetics 9(Supplement 1): P1479

Chaiwanon, Piangjan; Puwastien, Prapasri; Nitithamyong, Anadi; Sirichakwal, Prapaisri, P., 2000: Calcium fortification in Soybean milk and in vitro bioavailability. Soybean milk is a milk alternative beverage due to its inexpensive high-quality vegetable protein. Soybean milk (soybean to water, 1:8(w/v)) contains an equal amount of protein to a comparable amount of cow's milk but only about one-fifth of...

Gorbunova V.Yu, 1979: Effect of the seed filminess factor on resistance of wheat species to the causative agent of common bunt of wheat. Resistance to Tilletia caries (DC.) was studied in 4 wheat species: Triticum monococcum L., T. dicoccum Schuebl., T. timopheevii Zhuk. and T. spelta L. The role of seed filminess in wheat resistance was not equivalent within one, or among differen...

Hao, Hsiao Nan; Zhao, Jiun; Hoffman, Brad D.; Lyman, William D., 2001: Chemokine receptor expression is necessary for nestin-positive neural stem cell migration. Chemokines are a family of proteins that serve to attract and activate cells by interacting with specific receptors on responsive cells. The a and b chemokines, such as MIP-1 and stromal cell-derived factor 1 (SDF1), bind to their seven-transmembr...

Varnay, S., 1955: Recherches sur le cycle saisonnier de Synoicum argus (Milne Edwards), Synascidie Polyclinidee. Bulletin du Laboratoire Maritime de Dinard, 41: 36-53

Reyes, Jorge, D.; Carr, Brian; Dvorchik, Igor; Kocoshis, Samuel; Jaffe, Ronald; Gerber, David; Mazariegos, George, V.; Bueno, Javier; Selby, Rick, 2000: Liver transplantation and chemotherapy for hepatoblastoma and hepatocellular cancer in childhood and adolescence. Objective: To describe our experience with total hepatectomy and liver transplantation as treatment for primary hepatoblastoma (HBL) and hepatocellular carcinoma (HCC) in children. Study design: A retrospective analysis of the perioperative course...

Vernier, P. Thomas; Sun, Yinghua; Marcu, Laura; Craft, Cheryl, M.; Gundersen, Martin, A., 2004: Nanosecond pulsed electric fields perturb membrane phospholipids in T lymphoblasts. Nanosecond, megavolt-per-meter pulsed electric fields scramble the asymmetric arrangement of phospholipids in cell membranes without the permeabilization associated with longer, lower-fieid pulses. A single 30 ns, 2.5 MV/m pulse produces perturbat...

Nandini, M.; Gourie Devi, M.; Shankar, S. K.; Mustare, V. B.; Ravi, V., 1993: Balos concentric sclerosis diagnosed intravitam on brain biopsy. Clinical Neurology & Neurosurgery 95(4): 303-309

Espinoza, H. J.; Nieto H.; J., 1971: Evaluation of herbicides In cotton cultivation in the Soconusco region, Chiapas, Mexico. The weed population of the cotton-growing Soconusco region of Mexico varies between 2 and 4 million plants/ha of which the principal species are Cyperus spp, Portulaca oleracea and Amaranthus spp. Pre-em. treatments which have given good control 6...