Livestock Production Division, ICAR Research Complex for NEH Region, Umiam, Meghalaya, 793103, India.
Trop Anim Health Prod. 2021 Jan 6;53(1):78. doi: 10.1007/s11250-020-02474-5.
The objective of the study was to evaluate the performance of different crossbreeds, viz., two-breed crosses including HN-50 (50% Hampshire × 50% Niang Megha) and HN-75 (75% Hampshire × 25% Niang Megha) and three-breed cross, HND (25% Hampshire × 25% Niang Megha × 50% Duroc) for suggesting suitable crossbred pigs with appropriate inheritance for subtropical Eastern Himalayan hilly climate. These crossbreed pigs were reared in standard management conditions in Nucleus Pig Breeding Farm of ICAR RC for NEH region. A total of 1995 records were collected which included data on production performance (n = 1466), reproductive performance (n = 428) and carcass traits (n = 101) from farm record book maintained over a period of 7 years. Productive performance included body weight, ADG and FCR at different stages of growth. The study revealed productive performance was highest in two-breed cross of pigs with 75% H inheritance (HN-75) and three-breed cross (HND) pigs. Reproductive performance included ages at puberty, first conception and first farrowing, along with inter-farrowing interval, pregnancy and farrowing rate as well as litter performance. The HN-75 was found to be having shorter inter-farrowing interval and higher pregnancy rate than other genetic groups. Regarding carcass traits, three-breed cross had a higher dressing percentage and less back-fat thickness than other crossbred pigs. Two breed crosses of pigs were found to be having a higher back-fat thickness than three-breed cross pig, and HN-75 had a better dressing percentage than HN-50. Thus, it was concluded that three-breed cross was recommended for lean meat production, and two-breed cross HN-75 was recommended for both breeding and fattening purposes for subtropical Eastern Himalayan hilly climate.
本研究旨在评估不同杂交品种的表现，包括二品种杂交品种 HN-50（50%汉普夏 × 50%尼昂美加）和 HN-75（75%汉普夏 × 25%尼昂美加）以及三品种杂交品种 HND（25%汉普夏 × 25%尼昂美加 × 50%杜洛克），为适应亚热带东喜马拉雅山区丘陵气候，提出具有适当遗传特性的适宜杂交猪。这些杂交猪在 ICAR RC 为 NEH 地区的核养猪场按照标准管理条件进行饲养。从农场记录簿中收集了 1995 份记录，其中包括 7 年期间生长阶段的生产性能（n=1466）、繁殖性能（n=428）和胴体性状（n=101）的数据。生产性能包括不同生长阶段的体重、ADG 和 FCR。研究表明，75% H 遗传（HN-75）的二品种杂交猪和三品种杂交猪（HND）的生产性能最高。繁殖性能包括初情期、首次配种和首次产仔年龄，以及产仔间隔、妊娠率和产仔率以及窝产仔数。HN-75 的产仔间隔较短，妊娠率高于其他遗传群体。关于胴体性状，三品种杂交猪的屠宰率较高，背膘厚度较薄。二品种杂交猪的背膘厚度高于三品种杂交猪，HN-75 的屠宰率高于 HN-50。因此，得出的结论是，三品种杂交猪适合生产瘦肉，二品种杂交猪 HN-75 适合亚热带东喜马拉雅山区丘陵气候的繁殖和育肥。
