Effects of Dietary Protein Level and Environmental Temperature on Performance and Carcass Quality of Growing-Finishing Swine

1964 ◽  
Vol 23 (2) ◽  
pp. 375-379 ◽  
Author(s):  
E. W. Seymour ◽  
V. C. Speer ◽  
V. W. Hays ◽  
D. W. Mangold ◽  
T. E. Hazen
1971 ◽  
Vol 33 (4) ◽  
pp. 780-786 ◽  
Author(s):  
E. W. Lucas ◽  
H. D. Wallace ◽  
A. Z. Palmer ◽  
G. E. Combs

1963 ◽  
Vol 41 (1) ◽  
pp. 171-178 ◽  
Author(s):  
John R. Beaton ◽  
T. Orme ◽  
A. Turner ◽  
J. Laufer

The effect of the level of dietary protein (5%, 20%, 40% casein by weight) fed for 7 days in an environmental temperature of 22 °C, upon the survival of rats subsequently starved in an environmental temperature of 2 °C was studied. In these experiments ad libitum feeding, isocaloric feeding, and restricted feeding techniques were used, and the effects of thyroidectomy and thyroid feeding were investigated. In all cases, animals provided with the 5% protein diet survived for shorter periods than did those fed the 20% protein diet. In intact rats, but not in thyroidectomized rats, survival time appeared to be inversely related to rate of body weight loss in starvation. Differences in duration of survival among dietary groups are not explicable on the basis of differences in body weight, body composition, or total food intake prior to starvation. The results of experiments using thyroidectomized rats and thyroid feeding suggest that the effect of dietary protein level upon survival in subsequent starvation in the cold are not mediated through the thyroid gland.


2016 ◽  
Vol 99 (10) ◽  
pp. 7725-7732 ◽  
Author(s):  
A. Santillo ◽  
M. Caroprese ◽  
R. Marino ◽  
A. Sevi ◽  
M. Albenzio

2018 ◽  
Vol 169 ◽  
pp. 118-126 ◽  
Author(s):  
Eleonora Seoni ◽  
Gianni Battacone ◽  
Paolo Silacci ◽  
Silvia Ampuero Kragten ◽  
Jessika Messadene Chelali ◽  
...  

1996 ◽  
Vol 6 (1) ◽  
pp. 47-63 ◽  
Author(s):  
Youling L. Xiong ◽  
Eric A. Decker ◽  
Suzanne P. Blanchard ◽  
Carl D. Webster ◽  
Laura G. Tiu ◽  
...  

Author(s):  
Juggrid JUGSUMRIT ◽  
Chalermpon YUANGKLANG ◽  
Kraisit VASUPEN ◽  
Benya SAENMAHAYAK ◽  
Chantira WONGNEN

Tis study aimed to evaluate the embryo quality and embryo transfer rate of Thai crossbred goats fed different levels of protein in total mixed rations (TMR) during the hot season. Twenty-four non- pregnant Thai crossbred goats with an average body weight of 26±5.9 kg were assigned with a random complete block design (RCBD). Dietary treatments contained 8, 13, and 18 % crude protein (CP) in TMR. The feeding trial lasted for 42 days. Does (female goat) were scheduled to determine embryo quality by surgical laparotomy and flushing. At the end of the feeding trial, the digestion trial was conducted by the total collection method for a 5-day period. The results showed that the average total feed intake and feed conversion ratio did not differ among all treatments (p ˃ 0.05), however, digestible protein intake had increased from 70.39, 79.77 to 89.11 g/d in 8, 13, and 18 % CP group, respectively. Increasing CP levels in TMR resulted in linearly increased goat final body weight (30.25, 28.75, and 32.00 kg), weight gain (3.00, 4.00, and 4.25 kg), and average daily gain (ADG) (87.84, 114.87 and 121.63 g/d). Embryo quality (1, 1, and 3.5 morular follicle state) and pregnancy of embryo transfer rate (25, 25, and 50 %) of the animal received CP level at 8 and 13 % less than that 18 %. These results indicated that dietary protein level during program superovulation regimen affected the good quality of an embryo and the pregnancy rate in an embryo transfer in Thai crossbred goats.


Aquaculture ◽  
2006 ◽  
Vol 257 (1-4) ◽  
pp. 412-419 ◽  
Author(s):  
Hervey Rodríguez-González ◽  
Manuel García-Ulloa ◽  
Alfredo Hernández-Llamas ◽  
Humberto Villarreal

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