Author: Publisher:
ISBN:
Category : Proteins in animal nutrition
Languages : en
Pages : 5
Book Description
The Influence of Protein Level on Feedlot Performance and Carcass Characteristics of Barrows and Gilts
Author: Publisher:
ISBN:
Category : Proteins in animal nutrition
Languages : en
Pages : 5
Book Description
Relationship of Dietary Protein Level to Carcass Characteristics and Growth Performance of Swine
Author: The Effect of Protein Level on Feedlot Performance and Carcass Characteristics of Texas Rambouillet Ewes
Author: Norberto MendozaPublisher:
ISBN:
Category : Proteins in animal nutrition
Languages : en
Pages : 48
Book Description
Effect of Protein Level on Feedlot Performance and Carcass Characteristics of Texas Rambouillet Feeder Lambs
Author: Daniel Kermit WoolleyPublisher:
ISBN:
Category : Lambs
Languages : en
Pages : 46
Book Description
The Interaction of Restricted Feed Intake and Sex on Swine Performance and Carcass Quality
Author: Robert Hess HinesPublisher:
ISBN:
Category : Swine
Languages : en
Pages : 290
Book Description
Influence of Previous Nutritional Level on Feedlot Performance and Carcass Characteristics of Beef Cattle
Author: Charles Franklin ElliottPublisher:
ISBN:
Category : Cattle
Languages : en
Pages : 146
Book Description
The Effects of Diethylstilbestrol Plus Methyltestosterone on Swine Performance and Composition
Author: Thomas Dean BidnerPublisher:
ISBN:
Category : Diethylstilbestrol
Languages : en
Pages : 234
Book Description
Effect of Reducing Dietary Crude Protein in Hog Finisher Barrows and Gilts on Technical Performance
Author: Patricia PlukPublisher:
ISBN:
Category :
Languages : en
Pages : 45
Book Description
The objective of this study was to determine the effect of reducing dietary crude protein (CP) levels in hog finisher barrows and gilts on animal performance. Diets were formulated to meet the requirements of the first six essential amino acids. It was hypothesised that lowest dietary CP levels without negative effects on technical performance would be close to treatments D (barrows) and J (gilts). From those CP level onwards, isoleucine (and histidine) likely became limiting factors.The most important conclusions are mentioned below. Performance30-55 kg BW:- The response to CP level was different in barrows compared to gilts (P interaction0.05). In barrows, best performance was obtained at a CP level of 14.5% whereas gilts performed best at 15.5% CP. These CP levels also resulted in lowest cost per kg gain for barrows and gilts respectively.- Broken-line analysis indicated a minimum CP level of 14.7% and 15.1% for barrows and gilts respectively. This is in line with literature. Based on the diet composition in the current trial, soybean meal inclusion at this CP level would be approximately 12.5% and its inclusion could thus be reduced by 36%.55-80 kg BW:- No interactions were found between CP level and sex (P interaction0.05).- A quadratic response to CP level was observed for ADG and efficiency (both P0.05), but not for ADFI. ADG and efficiency were highest in animals receiving 13.9% CP or more.- Barrows had a higher ADFI and ADG (both P0.001), but were not less efficient compared to gilts (P=0.87).- Broken-line analysis indicated a minimum CP level of 14.4% for both barrows and gilts. This is partially in line with literature as levels of 11% and 11.9% have been reported to nog negatively affect ADG. However, bodyweight ranges were higher (up to 100 kg). Based on the diet composition in the current trial, soybean meal inclusion at this CP level would be approximately 9.5% and its inclusion could thus be reduced by 32%. 80-115 kg BW:- No interactions occurred were found between CP level and sex (P interaction0.05).- Performance increased with increasing CP level and cost per kg gain decreased with increasing CP level (all P linear
Bibliography of Agriculture
Author: The Pork Industry
Author: David G. TopelPublisher: Wiley-Blackwell
ISBN:
Category : Business & Economics
Languages : en
Pages : 260
Book Description
"Text ... assembled from the proceedings of a national conference [held at Iowa State University Oct. 23-25, 1967]"