A5069839696- Reproductive Physiology in Livestock
- Animal Nutrition and Physiology
- Reproductive System and Pregnancy
- Muscle metabolism and nutrition
- Urological Disorders and Treatments
- Ruminant Nutrition and Digestive Physiology
- Selenium in Biological Systems
- Genetic and phenotypic traits in livestock
- Environmental and Ecological Studies
- Pharmacological Effects and Assays
- Reproductive Biology and Fertility
- Effects of Environmental Stressors on Livestock
- Water Resource Management and Quality
- Animal Behavior and Welfare Studies
- Meat and Animal Product Quality
- Coccidia and coccidiosis research
- Soil Science and Environmental Management
- Sperm and Testicular Function
- Fatty Acid Research and Health
Universidade de São Paulo
2018-2021
Progesterone (P4) plays a key role in pregnancy establishment and maintenance; during early pregnancy, P4 stimulates the production release of uterine secretions necessary for conceptus growth prior to implantation; therefore, exogenous supplementation may improve embryo development. This study evaluated effects with long-acting injectable progesterone or altrenogest on embryonic characteristics sows gilts. Thus, total 32 16 gilts were used. On day 6 allocated one following groups:...
The use of altrenogest (ALT) supplementation for oestrous synchronization improves subsequent reproductive performance gilts and sows. However, the causes this improvement in after ALT treatment are not fully/clearly understood. objective study was to evaluate effects on endometrial glands embryonic development characteristics at 28 days pregnancy. Pregnant were divided into two experimental treatments: Control (did receive ALT; n = 9 gilts) (ALT feeding 20 mg/day 18 days; gilts). At...
This study evaluated the effects of supplying altrenogest from day 6-12 pregnancy on endometrial glandular epithelium, corpora lutea (CL) morphology, and CL gene expression. A total 12 crossbred females (Landrace × Large White) were used. The assigned to 4 treatments according a random design with 2 factorial arrangement, two categories (sow or gilt) (non-treated treated altrenogest). On 6 pregnancy, animals allocated one following groups: non-treated (NT, n = 6; 3 sows gilts), (T, gilts)...
Abstract This study aimed to compare different selenium (Se) sources in the diet on boar's semen quality and fertility. For this, 28 boars aged 8 months were fed with following dietary treatments for 95 days: 0.3 mg Se/kg as sodium selenite (SS, n = 14) hydroxy-selenomethionine (OH-SeMet, 14). During this period, two experiments carried out. In experiment 1, of all was evaluated every 2 weeks. Raw initially processing seminal doses, which stored at 17 °C 72 h, followed by sperm assessments....
The study aimed to evaluate the supplementation of gilts with cow's milk naturally enriched n-3 and n-6 polyunsaturated fatty acids (PUFA) on reproductive outcomes, serum biochemical FA profile swine females their offspring. During 316 days, 30 were distributed into three groups: (1) Control, fed a basal diet + from cows without oil; (2) n-3, linseed (3) n-6, soybean oil. receiving diets containing PUFA had higher urea very-low-density lipoprotein levels lower total protein low-density...
The use of additives such as ractopamine (Rac) in pregnant sows during early-mid pregnancy is an alternative to increase foetal and progeny growth development. However, Rac supplementation finishing pigs can lead behavioural physiological changes similar the typical stress responses. objective this study was evaluate effects dietary with from day 25 50 gestation (pre-hyperplastic stage) on piglet's vitality, blood parameters, number, diameter perimeter muscle fibres semitendinosus...
This study investigated copper (Cu) and zinc (Zn) hydroxychloride cosupplementation on the growth performance, diarrhea frequency, carcass, meat quality, antioxidant activity in grower-finisher pigs. A total of 256 pigs were used from 70 to 154 days (d) age, distributed four treatments, with eight each pen replications per treatment. Diets provided grower 112 old finisher, old. Copper was considered low level at 100 mg Cu/kg 90 Cu/kg, respectively, 150 both periods as high finisher periods....
Progesterone (P4) is of paramount importance in the establishment and maintenance pregnancy for mammals. stimulates endometrial secretion several molecules involved conceptus growth development during peri-implantation period. Indeed, studies involving ruminants have reported that exogenous P4 supplementation related to increased early embryo development, higher levels interferon tau, improved rate. However, there a lack information about regarding swine embryonic development. Additionally,...
Abstract The study aimed to investigate the effects of co-supplementation copper (Cu) and zinc (Zn) hydroxychloride (CHC ZHC) minerals on diarrhea frequency growing finishing pigs. A total 256 pigs were distributed into 4 treatments with 8 replicate/treatment. diets from 70 112 days age (d) T1: 100 mg/kg CuSO4 + 80 ZnO; T2: 150 T3: CHC ZHC; T4: ZHC 154 d 90 ZHC. Visual analysis feces was carried out daily, scores ranging 1 3 for each pen: 1=solid (normal); 2=feces softer than normal (pasty);...