搜索结果: 1-13 共查到“家畜繁殖学 sows”相关记录13条 . 查询时间(0.109 秒)
Placental characteristics of German Landrace sows and their relationships to different fertility parameters
pig placenta fecundity placental efficiency litter number litter size
2018/11/23
The placenta is the central foetal organ that ensures a sufficient exchange of nutrients and metabolites for adequate foetal growth. Specific data profiles for placental characteristics from modern pi...
Effects of dietary arginine supplementation on reproductive performance and immunity of sows
l-arginine litter performance placenta humoral immune
2015/6/24
Arginine (Arg) is considered to have beneficial effects on placental development and function, as well as reproductive performance. The well-developed placenta is highly required in late gestation for...
Effects of supplemental phytase on nutrient digestibility and performance of sows fed diets with high or low native phytase activity
sows intrinsic and microbial phytase reproductive traits digestibility
2015/6/9
Two experiments were conducted to examine the influence of addition of microbial phytase to diets differing in native phytase content, on the performance of sows and digestibility of nutrients. Barley...
The dynamics of changes in selected parameters in relation to different air temperature in the farrowing house for sows
sows air temperature reproductive parameters average daily weight gain
2015/6/5
The purpose of this study was to analyse the influence of different external air temperature on changes in the air temperature of housing environment in the farrowing house for sows and consequent cha...
Benefits of Prepartum Nest-building Behaviour on Parturition and Lactation in Sows — A Review
Farrowing Environment Nest-building Pig Welfare Maternal Behaviour Farrowing Duration Stillbirths
2016/5/19
It is well known that prepartum sows have an innate motivation to build a nest before parturition. Under commercial conditions, however, the farrowing crate, which is widely used in modern pig husband...
Effects of Lysine Intake during Middle to Late Gestation (Day 30 to 110) on Reproductive Performance, Colostrum Composition, Blood Metabolites and Hormones of Multiparous Sows
Lysine Gestation Sows Reproductive Performance
2016/5/6
Lysine intake during gestation has a major impact on subsequent reproductive performance. The objective of this experiment was to determine the effect of lysine intake from mid-gestation until farrowi...
Effect of Dietary Energy Levels of Gestating Sows on Physiological Parameters and Reproductive Performance
Energy Level Body Weight Backfat Thickness Progesterone Primiparous Sow
2016/5/5
This experiment was conducted to investigate the effects of dietary energy levels of gestating gilts on physiological parameters and reproductive performance for primiparous sows. A total of 40 F1 gil...
Reproductive Performance, Milk Composition, Blood Metabolites and Hormone Profiles of Lactating Sows Fed Diets with Different Cereal and Fat Sources
Cereal Fat Reproductive Performance Sow
2016/5/4
Different dietary cereal sources and fat types in the lactation diet were evaluated to investigate their effects on reproductive performance, milk composition, blood metabolites and hormones in multip...
Effect of Season, Parity and Lactation on Reproductive Performance of Sows in a Tropical Humid Climate
Reproductive Performance Sow Parity Tropical Climate
2016/4/21
The aim of this study was to analyze post-weaning reproductive performance of Large White sows in relation to season, parity and their lactation performance under tropical conditions in Guadeloupe (Fr...
Assessment of the Non All-in All-out System and the All-in All-out System for Sows and Their Suckling Piglets
Sow Piglet Behavior All-in all-out System Welfare
2016/4/21
The goal of this study was to investigate the behavior of sows and their piglets reared using the non-all-in all-out system and the all-in all-out system during a 3-week lactation period. The 24 Landr...
Analysis of prolificacy in sows of hyperprolific lines of Large White breed
sow Large White hyperprolific line reproduction ESR FSHa PRLR
2015/6/1
The objective of the paper was to evaluate the results of reproductive performance of sows in some elite breeding herds of the Large White breed included in experimental herds for the production of hy...
Statistical Analysis of Stillbirths in Different Genotypes of Sows
Sow Stillbirth Environmental Effect Genetic Parameter
2016/4/20
Statistical analysis was conducted on sow stillbirth traits of three genotypes with 2,400 litters including the Erhualian, Large White and the F1 cross of these two breeds. Number of stillborn piglets...
Quantification of Pre-parturition Restlessness in Crated Sows Using Ultrasonic Measurement
Sows Parturition Ultrasonic Transducers Animal Husbandry
2016/4/19
This study presents a non-video, non-invasive, automatic, on-site monitoring system the system employs ultrasonic transducers to detect behavior in sows before, during and after parturition. An ultras...
