An experiment was conducted to study whether piglet growth rate is related to mammary gland size. It involved three primiparous sows and four multiparous sows that were fed ad libitum during the lactation period. The piglets received no creep feed. The weight and teat order of the piglets were recorded. The sows were slaughtered after approximately 4 weeks of lactation (25–28 days). The amounts...

Data on 393 002 parturitions and performance in the following production cycle were collected from the SYMLEK database for 145 457 Polish Holstein-Friesian cows representing the active population in the Pomorze and Kujawy regions. The animals first calved during 2000–2012 and were used or culled by the end of 2013. GLM and FREQ procedures of the SAS package were used for the statistical calcula...

OBJECTIVE To verify if medium intensity exercise performed during pregnancy can influence in the type of delivery, and to observe compliance to an exercise program among primiparous women with different levels of schooling. METHODS A study carried out at the Centro de Incentivo ao Aleitamento Materno, in São Sebastiao (SP), between April 7, 2008, and April 14, 2009. A prospective study involv...

Labor pain is caused by contractions of the myometrium, stretching lower segment uterus and cervix, as well uterine muscle ischemia physiological processes that cause pain, fear, worry can impact both mother fetus. One non-pharmacological method for management through encephalins production aromatherapy. The purpose this study was to determine effect lavender aromatherapy inhalation on reducing...

Spring-calving, crossbred (1/4 to 3/8 Brahman) primiparous (n = 56) and multiparous (n = 102) beef cows were used to evaluate the effects of progesterone, delivered via a controlled internal drug-releasing (CIDR) device, and prostaglandin F(2alpha) (PGF(2alpha)) on estrous behavior, synchronization rate, initiation of estrous cycles, and pregnancy rate during a 2-yr period. To determine luteal ...

The objective of this study was to determine if factors associated with the biostimulatory effect of bulls alter breeding performance of primiparous, suckled beef cows using a progestin-based estrous synchronization protocol. We tested the hypotheses that the estrous synchronization response and AI pregnancy rates differ among cows exposed to bulls, continuously exposed to bull urine, and expos...

Effects of differential patterns of feed intake during lactation, associated metabolic and endocrine changes, and reproductive status after weaning were investigated in 26 primiparous sows suckled by six piglets. Sows were fed to appetite (Group AA; n = 9) from d 1 to 28 of lactation or restricted to 50% from d 22 to 28 (Group AR; n = 9) or from d 1 to 21 (Group RA; n = 8). Sow weight, backfat,...