Search Results - XU Zi-rong

One hundred fifty finishing pigs (Duroc× Landrace×yorkshire) were allotted to five groups which received the same basal diet, supplemented with 0, 1 000, 1 250, 1 500, 1 750 mg/kg betaine. On finishing40 days feeding experiment, 60 pigs were slaughted, the longissimus dorsi, liver and serum samples...

Full description

Ninety-six Duroc-Landrace-Yorkshire piglets which weighed about 28kg were randomly divided into four groups to be used in studying the different ratios of threonine to lysine (0.62, 0.67, 0.72 and 0.78) on growth performance and carcass composition in growth-finishing swine. The results showed that...

Full description

Ninety-six Duroc-Landrace-Yorkshire piglets which weighed about 28kg were randomly divided into four groups to be used in studying the different ratios of threonine to lysine (0.62, 0.67, 0.72 and 0.78) on growth performance and carcass composition in growth-finishing swine. The results showed that...

Full description

One thousand one hundred and seventy Chinese soft-shelled turtles allotted to three groups by weight and sex were conducted to study the effects of carnitine on adipose metabolism. Every group included three replicates of one hundred and thirty turtles each. The groups received the same basal diet s...

Full description

One hundred and sixty 1-d-old Arbor Acres broiler chicks were randomly divided into two groups each including 80 broilers. Both groups reared in cage under 24-h light were fed with basal corn-soybean meal diets containing 0 and 50 mg/kg chlortetracycline (CTC), respectively. The diets were provided...

Full description

Three hundred and twenty Avian commercial broiler chicks were used to study the effects of addition of yeast nucleic acid to corn-soybean diets on meat quality. The chicks were randomly allotted to four groups by weight and sex, each of which included four replicates of twenty birds. During the grow...

Full description

A feeding trial using 105 weanling pigs (Duroc×Landrace×Yorkshire) randomly assigned to five groups (each of which included three replicates) receiving the same basal diet, supplemented with 100,200,3000 mg/kg zinc oxide; 100,200 mg/kg zinc proteinate respectively for 30 d, was conducted to study th...

Full description

The experiment was conducted to study the effects of yeast nucleic acid on growth performance and carcass composition of broiler chicks. Three hundred and twenty Avian commercial broiler chicks were randomly allotted to four groups by weight and sex, which received corn-soybean diet supplemented wit...

Full description

蛋白质资源短缺、饲料转化效率低和畜禽肉质的下降是制约我国饲料工业和养殖业持续高效发展的主要限制因素。在开发大宗、低廉的菜籽饼（粕）蛋白资源方面，国内外多采用体外脱毒法，但成本较高；在提高饲料转化效率研究上，我国与发达国家有较大的差距；在用天然、无毒害饲料添加剂提高畜禽肉的色、香和味方面，国内外还未见报道。本项目通过体内解毒法开发利用菜籽饼（粕）资源，通过研究高效转化饲料添加剂和肉质改良剂来研制高效转化、肉质改良和资源开发型畜禽全价饲料。...

Full description

Nighty Landrace X Jia growing pigs. (35±0.40) kg, were used to investigate the effects of exogenous GXC (xylanase, β-glucanase and cellulase) on the digestion of paddy-based diets and approach to the mechanism. The results of feeding trial showed that GXC supplementation significantly increased ADG...

Full description

Experiments with one hundred and eight weanling pigs (Daroc (Landrace (Yorkshine) were used to study the effects of adding 5 mg/kg, 250 mg/kg copper (copper sulfate) into the basic diet on the growth performance, digestion and carcass composition. The results showed that 250 mg/kg copper increased a...

Full description

Effects of dietary iodine level on reproduction performance of gestation sow, serum parameters of sow and newborn piglets were studied. The results showed that iodine deficiency of sow could be avoided by adding 0.15 mg/kg iodine in diet. But the litter size could be increased 0.99, 0.78, 0.25 pigle...

Full description

The experiment was conducted to study the effects of hexachlorocyclohexane (HCH) on growth performance, approach to the mechanism of effects by determining indexes of serum and hormone parameters. Seventy-two pigs, with equal number of barrows and gilts, the same genotype (Duroc × Landrace × Large W...

Full description

Experiments were carried out to study on the content of moisture, crude protein and lipid of muscle and fatty block, and of mineral element and amino acid of muscle, and on the fatty acid composition of muscle and fatty block in Chinese soft-shelled turtles (Trionyx sinensis). Results showed that pr...

Full description

Sixty crossbred (Duroc× Landrace× Yorkshire) finishing pigs were used to study the effects of N-methyl-D-aspartate (NMDA) on serum growth hormone (GH) level and pituitary GH mRNA expression. Pigs weighed averagely about 60 kg were randomly allotted to two treatments and fed diets containing 0 and 10...

Full description

The water of shrimp (Penaeus vannamei, Boone, 1931) ponds was used to investigate the effects of the highly active bioremediation probiotics, which were produced biologically. The eutrophication extent of the water body was analyzed according to the water quality indexes, such as pH value and amount...

Full description

Two hundreds and seventy chicks were randomly divided into three groups with ninety chicks in each group to study the effects of enzymes on carcass composition and calcium phosphorus metabolism in broiler chicks. The results showed that the enzymes increased the percentage of dissected breast and de...

Full description

Effects of dietary protein levels on growth and digestive enzyme activities of jade perch Scortum bacoo were investigated by feeding 5 isocaloric diets, which used white fishmeal as the only dietary protein source in pellet feeds. The trial feed protein contents were 23.64%, 28.45%, 33.50%, 37.04% a...

Full description

This study was conducted to investigate the effect of chromium picolinate on performance and carcass characteristics in growing-finishing pigs.144 pigs were randomly allotted to three treatments. There were 48 pigs in each treatment with three replicate pens of 16 pigs. The pigs were fed the diets s...

Full description

This trial was conducted to investigate the effects of two kind of methylamino acids on growth performance of swine in different stages, and approach the mechanism involved. The results showed that a diet supplemented with 50 mg/kg N-methyl-D, Laspartate. improved performance of young piglets as wel...

Full description