Effects of frequency of recombinant porcine somatotropin administration on growth performance, tissue accretion rates, and hormone and metabolite concentrations in pigs1

1992 ◽  
Vol 70 (12) ◽  
pp. 3709-3720 ◽  
Author(s):  
C. M. Evock-Clover ◽  
N. C. Steele ◽  
T. J. Caperna ◽  
M. B. Solomon
Keyword(s):  
Growth Performance ◽  
Porcine Somatotropin ◽  
Metabolite Concentrations ◽  
Accretion Rates ◽  
Tissue Accretion

scholarly journals The effect of dietary L-carnitine on growth performance and tissue accretion rates in the early-weaned pig

1994 ◽  
pp. 122-124
Author(s):  
K Q Owen ◽  
S A Blum ◽  
Jim L Nelssen ◽  
Robert D Goodband ◽  
Michael D Tokach ◽  
...  
Keyword(s):  
Growth Performance ◽  
Accretion Rates ◽  
Weaned Pig ◽  
Tissue Accretion

Effect of Protein accretion rate on reproductive function in the gilt between 50kg and 3rd oestrus

1999 ◽  
Vol 1999 ◽  
pp. 6-6
Author(s):  
J. Cameron ◽  
J. Wiseman ◽  
R. Webb ◽  
M.G. Hunter
Keyword(s):  
Accretion Rate ◽  
Genetic Selection ◽  
Reproductive Function ◽  
Reproductive Failure ◽  
Lean Tissue ◽  
Body Protein ◽  
Protein Mass ◽  
Accretion Rates ◽  
Selection For ◽  
Tissue Accretion

Recent MLC survey data (Pig Year Book, 1995) reports that approximately 0.5 of annual first parity gilt cullings are due to reproductive failure. This high culling rate may be attributed to recent genetic selection for increased lean tissue accretion rates, and as a result a greater mature body weight. However, the gilt attains puberty and is thus mated at a lower age and as a consequence has not reached the target threshold of 35kg body protein mass at farrowing, suggested by Everts (1994),to be necessary for optimal reproductive performance. This, confounded with excessive tissue catabolism over lactation results in the attenuation of the gilt's potential protein accretion curve and hence reproductive failure (Foxcroft et al. 1995). The aim of this experiment was to study the effect of two protein accretion rates (maximum and 0.8 of maximum) on reproductive function in the gilt from 50kg liveweight to 3rd oestrus.

The interrelationship of porcine somatotropin administration and dietary phosphorus on growth performance and bone properties in developing gilts

1993 ◽  
Vol 71 (10) ◽  
pp. 2683-2692 ◽  
Author(s):  
T. L. Weeden ◽  
J. L. Nelssen ◽  
R. D. Goodband ◽  
J. A. Hansen ◽  
K. G. Friesen ◽  
...  
Keyword(s):  
Growth Performance ◽  
Dietary Phosphorus ◽  
Porcine Somatotropin ◽  
Bone Properties

scholarly journals Effect of corn processing on growth performance, carcass characteristics, and plasma glucose-dependent insulinotropic polypeptide and metabolite concentrations in feedlot cattle1

2020 ◽  
Vol 4 (2) ◽  
pp. 822-830 ◽  
Author(s):  
Tiago B Freitas ◽  
Tara L Felix ◽  
Wayne Shriver ◽  
Francis L Fluharty ◽  
Alejandro E Relling
Keyword(s):  
Growth Performance ◽  
Random Effects ◽  
Plasma Glucose ◽  
Fixed Effects ◽  
Block Design ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Fat Deposition ◽  
Metabolite Concentrations ◽  
Corn Processing

Abstract The objectives of this trial were to evaluate the association between corn processing, glucose-dependent insulinotropic polypeptide (GIP) concentration, and intramuscular (IM) fat deposition. We hypothesized that steers fed whole shelled corn (WSC) would have a greater IM fat deposition than steers fed cracked corn (CC) due to an increase in plasma GIP concentration. Backgrounded, Angus-cross cattle (initial body weight [BW] = 279 ± 9.8 kg) were used in a randomized complete block design in a feedlot setting for an average of 230 d. Cattle were allotted in 12 pens (6 pens per treatment with 8 animals per pen). There were three blocks: heifers (n = 32, initial BW = 265 ± 1.3 kg), small steers (n = 32, initial BW = 262 ± 1.3 kg), and large steers (n = 32, initial BW = 310 ± 1.4 kg). Two pens within each block were randomly assigned to one of the following treatments: 1) CC or 2) WSC. Animal growth performance, carcass characteristics, and plasma hormone and metabolite concentrations were analyzed using the MIXED procedure of SAS, including the fixed effects of treatment, or treatment, time, and their interaction. Pen and block were included as random effects. Carcass yield and quality grade distributions were compared using the GLIMMIX procedure of SAS. including the fixed effects of treatment and time with pen and block as random effects. Linear regression was used to evaluate the association of plasma GIP concentration and IM fat content. Average daily gain (P = 0.57) and final BW (P = 0.34) were similar, regardless of treatment. Cattle fed CC had reduced (P < 0.01) dry matter intake (DMI) when compared with those fed WSC. This lesser DMI resulted in improved gain:feed ratio (P < 0.01) for cattle fed CC compared with cattle fed WSC. There was no effect (P ≤ 0.33) of corn processing on plasma glucose, plasma GIP concentrations, hot carcass weight, dressing percentage, or marbling score. There was a positive linear relationship (P = 0.03) between IM fat concentration and plasma GIP concentration. In conclusion, feeding CC increased gain:feed ratio compared with WSC, but there was no difference in plasma GIP concentration, whereas plasma GIP concentration appears to be related to IM fat deposition.

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